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Midas® Gas Detector

1. Midas Technical Handbook 4 20 Honeywell Midas Gas Detector Diagram 4 20 Midas to HA71 3 Wire Sourcing Connection O J4 supply INT EXT Analog Current Loop 4 20 mA c c uo NE 5 O oz oz a o Internal Power Loads MIDAS Simplified Internal Schematic Controlled ExT Current Source J5 0010 1115 ASSY 10 0158 ST 71 ANALOG INPUT BOARD Ji INSTALL JP A or B E O cr O0 LO EXC LO CH4 12 CH6 14 ooo EXC CH8 16 ANALOG INPUTS 3 Wire 4 20mA Transmitter INT Analog Input Card HA71 Midas Technical Handbook 4 21 Honeywell Midas Gas Detector Diagram 4 21 Midas to HA71 4 Wire Connection 0010 1115 ASSY 10 0158 J4 ST 71 ANALOG INPUT BOARD supply Lo INT EXT o Ne ja lt ges so Relay1 EEE NO 5 a a Fi ER N m 2 m 8 5 O zi NC o EXT INT 992883988 7 2 5 F 6 I E O iod 5 O EE d de dede 4 ORS Shielded Cable x E ais sous Es Z BS amp amp R2 R4 R6 j R8 TB2 g ES 424V 2 DC DC PWR e PWR 5b 1 l O O O OOO oo 2 ae ae EXC LO EXC 10 EXC LO EXC LO cz CH1 9 CH3 11 CH5
2. 7 Disconnect the lower Viton tube from the quartz Diagram 9 14 Removing the heater block assembly tube port If necessary swing the heater unit heater block assembly T as shown in Diagram 9 13 Discard the old Viton tube E Diagram 9 13 Disconnecting the lower Viton tube C enclosure 9 Reverse steps 1 through 8 to install the new heater block assembly Midas Technical Handbook 9 8 Honeywell Midas Gas Detector 10 Optional LonWorks Interface Installation Midas Technical Handbook 10 1 10 Midas LonWorks Interface Module 10 1 LonWorks Installation Midas can be directly integrated within a LonWorks network using an optional interface module MIDAS T LON This gateway provides both power and communications to the Midas transmitter and creates a LonWorks node on the network All gas readings faults and other sensor data are transmitted via the LonWorks protocol Any Midas transmitter can be easily configured to connect with the LonWorks interface module The Midas LonWorks interface module is installed behind the standard Midas gas detector as shown in Diagram 10 1 Power and data connections are supplied directly to the LonWorks interface module All power to the Midas unit is provided via the LonWorks interface Diagram 10 1 Midas LonWorks module Midas LonWorks Module MDA Scientific Module
3. OIGA Aaa E HA Ko O Ce pp pp 5701 Card Sensor Drive Module Link Positions o Lk13 r A q 4 13 Honeywell Midas Gas Detector Diagram 4 13 Midas to 5701 3 Wire Sinking Connection Sieger System 57 Relay Field Interface Card 05701 A 0326 05701 A 0327 05701 A 0328 05701 A 0329 05701 A 0330 Analog Currel Loop 4 20 24V 2 com 1 Shielded Cable B5 a E gt O 5701 Sensor Drive Module Link Positions LKi3 LK12 System 57 on Simplified Internal Schematic m Relay Field 5701 Control Card Lkio INT EXT Interface Card LK9 Cad 11 Transmitter o O LK8 Supply oO Lk 4 20 mA Sense 6 9 LK6 Controlled Resistor Internal Current Source 170 ohm o O Lk5 Power Loads LK4 4B o o LK3 om Midas Technical Handbook 4 14 Honeywell Midas Gas Detector Diagram 4 14 Midas to 5704 4 Wire Connection t AnalogiCurre PYROLYZER CONNECTOR MI Internal Power Loads 00000000 Sieger System 57 Quad Relay Interface Card 05704 A 0121 with 4 Channel Control Card 05704 A 0145 O o 38 1131 79 77 75 71 71 18
4. Midas Gas Detector To maintain sensor accuracy when using the pyrolyzer do not allow the ambient temperature at the point of installation to exceed 30 C 86 F Operation above this temperature may require more frequent bump testing or calibration to confirm working specification Because of the higher operating temperatures when using the pyrolyzer module Honeywell Analytics strongly recommends that the ventilated Midas Top Cover part number MIDAS A 039 be used in all pyrolyzer applications NOTE The Pyrolyzer module is serviceable only by trained personnel or by Honeywell Analytics Service Center Inappropriate handling can cause injury and device damage Note Le module pyrolyzer pouvant tre r par Par contre la r paration doit tre effectu e par un personnel qualifi ou a un centre de service autoris d Honeywell Analytics Une manutention inad quate pourrait caus des blessures ainsi que des dommages l appareil Diagram 9 2 shows the main components of the pyrolyzer Diagram 9 2 Pyrolyzer components Diagram 9 2 Pyrolyzer components Terminal for power and Mounting holes communication for M3 screws 3 Exhaust tubing Gas sample inlet as HF Jumper Teflon tubing between pyrolyzer and MIDAS included with pyrolyzer option Freon filter Gas sample inlet as NF3 Pyrolyzer Midas Technical Handbook Honeywell Midas Gas Detector Diagram 9 3 shows in a
5. LonWorks Interface Honeywell Customer Wiring Midas to LonWorks Interface Cable MIDAS A 040 Midas Technical Handbook Honeywell Midas Gas Detector 10 1 1 Fitting the LonWorks Module 1 Unscrew LonWorks interface top plate 2 Mount the interface and tighten screws See mounting template on reverse side 3 Connect 24V DC power and LonWorks wires to the pluggable connectors Clamp the cables in the supplied gland as shown in Diagram 10 2 A spare gland is included Reinstall top plate on the interface Loosen thumbscrew on front of Midas Remove unit cover Loosen two screws on bottom front of chassis Separate main chassis from mounting bracket assembly 9 Mountthe Midas mounting bracket assembly onto the LonWorks interface 10 Tighten screws 11 Align the PCB at the top rear of the main chassis with the connector located at the top of the mounting bracket assembly 12 Slide the main chassis backwards on the mounting bracket assembly so that the PCB and connector and tubes engage simultaneously WARNING DO NOT PUSH ON THE LCD AS THIS MAY CAUSE DAMAGE 13 Tighten the screws to secure the main chassis to the mounting bracket assembly 14 Reinstall cover pow wm me 10 2 Diagram 10 2 LonWorks Cable Gland x 10 1 2 Wiring the Midas for LonWorks Wiring Diagram Pwr Common Pwr 24 VDC LonA LonB Pw
6. Shielded Cable Note The above schematic shows the MIDAS connected to channel 1 on the 5704 card The terminal numbers for all four channels are as follows MIDAS Function Loop Loop Midas Terminal Number 11 10 System 57 Function S 01 Color in this figure Brown Blue 5704 Channel 1 Terminal 15 17 5704 Channel 2 Terminal 16 18 DAS 5704 Channel 3 Terminal 21 23 Simplified Internal Schematic 5704 Channel 4 Terminal 22 24 INT aS System 57 Relay Field Interface Card 4 20 mA Controlled Current Source 45 EXT INT Midas Technical Handbook Not optically isolated 5704 Control Card 4 15 Honeywell Midas Gas Detector Diagram 4 15 Midas to 5704 3 Wire Sourcing Connection supply INT EXT Analog Current EXT INT supply J5 PYROLYZER CONNECTOR Loop 4 20 mA 00000000 MIDAS Simplified Internal Schematic INT EXT Internal Power Loads Midas Technical Handbook Controlled Current Source J5 EXT INT Note Sieger System 57 Quad Relay Interface Card 05704 A 0121 with 4 Channel Control Card 05704 A 0145 T a 9 The above schematic shows the MIDAS connected to channel 1 on th
7. Subnet mask 255 255 255 Default gateway x A Obtain DNS server address automatically Description Paint wide area network protocol that provides communication across diverse interconnected networks Programs gt Transmission Control Protocol Intemet Protocol The default Use the following DNS server addresses Preferred DNS server E E 3 Alternate DNS server E E Iv Show icon in notification area when connected Search Ey Printers and Faxes Taskbar and Start Menu Help and Support Run Shut Down Windows XP Professional Midas Technical Handbook 13 3 Honeywell Midas Gas Detector 13 3 Running the Web Browser Start Microsoft Internet Explorer or similar web browser Set the URL to http xxx xxx xxx xxx where the xxx fields are replaced with the IP address of the Midas A screen similar to Diagram 13 2 should be displayed The status and configuration of the Midas can be viewed and set by clicking on the appropriate links Midas Diagram 13 2 Midas Default web page File Edit View Favorites Tools Help Favorites 4 Midas Unit 12340338 Honeywell Analytics f DE od y Page Sifetyr Tools v Or Name HA M12340338 rial Number M1 artridge Serial Number 1 491 Honeywell Serial Ni 412340338
8. Electrical Connections bias anos 4 11 4 8 the Main ais alas 4 23 4 9 Installing the Sensor 1 4 23 5 Detector Start Up Procedures 5 Detector Start Up Procedures i tt 5 2 Midas Technical Handbook i Honeywell Midas Gas Detector eneral Operation E General EIS toil ett 6 2 6 1 Normal Operation Mode 6 2 6 1 1 Resetting Alarms and ii di 6 4 6 2 Review Mode ipa sina ong E E sok as pont seta cH Ci P B CO PO EE ert ada id 6 4 6 2 1 Review Mode Menu Overview acidic 6 4 6 3 Overview of Set up Calibration and Test Mode 6 6 6 3 1 Set up Menu Overview E iss dii 6 6 6 3 2 Calibration Menu Overview we aiia dcbct d 6 8 6 3 3 Test Menu Overview 423 tES oo 6 9 7 Detailed Procedures for Navigating Mode Submenus 7 Detailed Procedures for 7 1 Review Mode iii 7 2 E ROVIGO OTIWEIEOSO V anger e 7 2 7 1 2 Review Alarma e ALM ases A 7 2 74 3 Review E Aib NN 7 3 7 1 4 Review Calibration
9. 7 8 7 1 5 Review Date and Time nennen 7 3 7 1 6 Review Detector Address 3 7 3 21 7 Review Event bog GA Hi SE arraiais 7 4 7 1 8 Review LCD Backlight Mode LCD smart a atacan acea 7 4 7 2 Set up Calibration and Test Modes 7 4 ELSA MENU Ncc tS 7 5 7 2 2 Set Alarms Cena ca daa gaius 7 5 T23 Set Faults em ii tds 7 6 7 2 4 Set Calibration Interval ficar 7 7 29 56 Date a a Time WME coc cca teni 7 7 7 2 6 Set Address NR 7 8 2 207 Gg pas code eina 7 8 7 28 S6 P ODE EDO iia utili utn do Lia afta 7 9 Midas Technical Handbook ii Honeywell Midas Gas Detector 33 Zero Calibration OCA saciar i eese os 7 10 7 3 2 Span laser fentit iiid 7 10 Calibration VE OV ascia era ia 7 11 7 3 4 MA Calibration mA 207 actae iiec ania xai A rae Ronda 7 12 7A Test Ment ASESU ERO 7 13 TAMBN Test POUM scans ri li 7 13 ANA MAA AA AA 7 13 A AAA AA 7 14 7 4 4 Stimulate 4 20MA 4 20
10. Midas Gas Detector again to display the month and day of the last calibration Press to return to step 1 Repeat steps 1 through 4 to view the settings again or press A up Y down to select another submenu Press X to return to normal operation 7 1 5 Review Date and Time timE 1 peg m 7 Select the review date and time timE submenu and press to accept The current year setting is displayed Press to display the current month and day Press s again to display the current time Press to return to step 1 Repeat steps 1 through 5 to view the settings again or press A up or W down to select another submenu Press X to return to normal operation 7 1 6 Review Detector Address nEt I 2 7 3 Select the review address nEt submenu and press to accept WA Y or WA n is displayed depending on whether full web access or read only has been selected AU Y or AU n is displayed depending on if auto address detection is on AU Y or off AU n Press V to display the first part of the IP address preceded by the letter A The dot on the upper left indicates that the first part of the IP address is being displayed Press to display the second part of the address The two dots on the upper left indicate the 2nd portion of the address 7 Press again to display the third par
11. The terminals used are suitable for conductors of 24 to 14 AWG 0 5 to 1 8mm Dia The use of 16 AWG 1 5 mm Dia conductors is recommended 4 8 If Power over Ethernet PoE is used to power the device then 24 VDC power must not also be connected to the device or conversely if 24 VDC is used to power the Midas then electrical power via the Ethernet port must not be applied Failure to observe this requirement may cause damage to the gas detection system and will not be covered by the standard warranty When connecting the wires ensure that the power switch is in the off position Diagram 4 5 shows the terminal module layout and terminal identification as well as the jumper locations Note Earthing Requirements If the Midas unit s metal chassis is not connected directly to a metal surface for earthing purposes an additional earth wire will be required Connect a wire via the PG16 gland to the dedicated earth tag screw terminal located on the bottom bracket and connect the other end of the wire to a dedicated external earthing point If Power over Ethernet PoE power supply is being used shielded CATS Ethernet cable is recommended Please ensure that your wiring avoids earth ground loops that may affect the performance of your equipment Midas Technical Handbook 4 9 Honeywell Midas Gas Detector Honeywell Midas Gas Detector Diagram 4 6 Midas terminal layout and identification
12. to accept The display flashes nonE indicating there is no inhibit currently set Use the A up or W down buttons to select alarm alarm and fault or all Alm AL Ft or ALL output inhibit states See Table 7 8 for details of inhibit states Press to accept the selected inhibit state Press A up or down to set the inhibit timeout between 0 minutes and 4 hrs default 30 minutes Honeywell Midas Gas Detector 6 Press to accept UPdt displayed 7 The selected outputs will be inhibited until the inhibit timeout has elapsed Note Ifthe inhibit timeout elapses before the inhibit state is set back to nonE the maintenance fault code M17 will be displayed 8 Totake the unit out of inhibit select the inhibit InH submenu and press to accept 9 Use the A up or W down buttons to select nonE 10 Press v to return to the submenu selection 11 Press up or down to select another submenu 12 Press X to return to set up calibration and test menu selection 13 Press X again to return to normal operation Table 7 8 Inhibit states Inhibit z State Display Function None nonE No functions are inhibited Mama Alarm events will be detected but alarm Inhibited ALm outputs relays 4 20 mA current loop and Ethernet will be disabled Alarms Alarm and fault events will be detected but and AL Ft alarm and
13. 1991 0147 3 or 1830 0055 780248 Arsine 18 200ppb 25ppb 50ppb MIDAS S E ASH 20 02 1 500 AsH 100ppb 100ppb 300 PH 01 180 30 ue E 1830 0055 o 1830 0055 ao Boron Trifluoride 0 72 8 ppm MIDAS S E HFX el Boron Trifluoride Low Level 0 036 0 4 ppm 05 mI 1 ppm S E BR2 1830 0055 780248 Carbon Monoxide 9 100 ppm 12 5ppm 25ppm MIDAS S E COX E 1830 0055 id Chlorine 18 2 25 50 mosses S E HAL 1880 0055 Chlorine Dioxide 0 036 0 4 ppm 0 05 ppm 0 1 ppm MIDAS S E BR2 500 1880 0055 Midas Technical Handbook B 2 1830 0055 i 1830 0055 JEN le 1830 0055 780248 ue x 47 Sensor Warm up Time minutes Sensor Part Number Default Alarm 2 Default Formula Alarm 1 Gas Name Range Calibration Gas Honeywell Midas Gas Detector Calibration Bump Test Recommended End of line filter Maximum Sample Line Length m Recommended Bump Test Chlorine Trifluoride 0 036 0 4 ppm 0 05 ppm Ea 36 4 ppm m 50 ppm MIDAS S E m SOS o 8 100 LEL 10 LEL fa o pele Midas Technical Handbook 3 0 1 ppm MIDAS S E SF4 Difluoromethane 2 Hexafluorobutadiene Hydrogen LEL 5096 LEL Hydrogen ppm 90 1000 ppm 1991 0147 or 1830 0055 780248 2 1991 0147 or 1830 0055 1991 0147 or 1830 0055
14. Modbus TCP Remote Relays respond to writes to Modbus holding registers only Calibration Zero Calibration Fault m12 Occurrence Recur Weekly e Span Calibration Flow Calibration Only Once e 4 20 mA Calibration Never Occur Test Bump Test e AlarmFault Simulation Done Internet Protected Mode Off a 9 y This page enables the user to select latching fault mode normally energized or de energized mode for the relays The relays can be configured in 4 states Three states allow local response and one allows remote Modbus TCP control This page also allows the user to configure the reoccurrence frequency for the m12 Cartridge Expires Soor notifications Midas Technical Handbook 13 12 Honeywell Midas Gas Detector Diagram 13 12 Network Configuration gt B 4 x 8 sing Favorites Midas Unit M12340338 Honeywell Analytics Mo E Pager Safety Tools Or Name HA M12340338 Honeywell MDA Scientific Location MIDAS Gas Detector Midas Gas Detector E Serial Number M12340338 Cartridge Serial Number 12K50491 IP Address 169 254 60 47 General Network Configuration Status Event History Calibration Certificate To change the TCP IP setup the Midas must be rebooted Contact Info Help Click the Accept button to accept the TCP IP setup Wait 10 seconds Configuration Click the System Reboo
15. 16 Fault icon 17 Up button 18 Alarm level 1 icon A Alarm level 2 icon A For flammable and toxic Depletion level 1 icon W Depletion alarm level 2 Y 19 Cancel button 20 Zero and Span calibration 2 1 2 Pump Module ues Flow indicator The pump module is located at the back of the main chassis It draws the gas sample from the inlet port located at the bottom of the mounting bracket assembly via an inline filter to the sensor cartridge chamber located at the front of the main chassis The inline filter is to protect the elements after the sensor The sample goes from the inlet straight to the sensor face and then through the rest of the flow system The sample is then exhausted via the exhaust port located at the bottom of the mounting bracket assembly The pump and filter assemblies are designed for easy replacement For replacement details refer to Sections 8 2 and 8 4 respectively Midas Technical Handbook Honeywell Midas Gas Detector 2 1 3 Sensor Cartridge Chamber The sensor cartridge chamber is located at the front of the main chassis below the display module The plug in sensor cartridge is fitted into this area which makes the electrical connection between the sensor cartridge and the rest of the electronics as well as providing the chamber where the sensor cartridge is exposed to the sampled gas This connection is lightly lubricated for ease of sensor replacement Avoid contact of sensor cartridge cha
16. A up or Y down buttons to change between the settings Press to display the flashing fault output normally energized nE or normally de energized nd setting Use the A up or down buttons to change between the settings Press Y to set the fault m12 frequency Use the A up and down buttons to change between settings LCD Display m12 Frequency cartridge expiration weekly reminder one time reminder Press Y to update all the changes UPdt displayed and return to step 1 Press A up or down to select another submenu Press X to return to set up calibration and test menu selection Press X again to return to normal operation Midas Technical Handbook Table 7 3 Fault relay configuration options Fault Relay Relay 1 Relay 2 Relay 3 Configuration Instrument Fault Only Alarm 1 Alarm 2 Instrument 1FLt Fault Separate Fault Relays Any Maintenance Instrument 2FLt Alarm Fault Fault Combined Fault Relay Alarm 1 Alarm 2 Any Fault CmbF Network Remote Control Remote control of relays via Modbus nEtr TCP or LonWorks Note Remote control of the relays can be facilitated using Modbus TCP or LonWorks control from a centralized control system In this mode the Midas relays are only controlled via the remote system when set to nEtr 7 2 4 Set Calibration Interval CAL 1 2 M
17. EJE drill template Use 2 x M4 Screws or equivalent for mounting head size 6 12 2 48 in 63 00 mm 1 4 1 2 Midas Technical Handbook 4 2 Honeywell Midas Gas Detector 3 9 in Cosa Midas Transmitters and Pyrolyzers Midas A 039 i 96in 244 mm 2in 132 mm 98 mm A 2 4 in 7 60 mm 82in 209 mm Note Heat shield not present on all pyrolyzers Midas Technical Handbook 4 3 Sl Midas T OOP 5 5 in 140 mm S E 7 9 20 32in 32in Ps 2 5 in 62m 44 in 113 mm 101mm in 201 mm m Midas T HTP Tin 33 mm Below are some considerations when installing the Midas Gas Detector 1 10 Midas Technical Handbook Mount the detector on a surface that is flat firm and suitable for its size and weight Use the drill template supplied to drill the holes for the fixings Use fasteners appropriate for the surface being mounted to Ensure the head size of fastener used will not snag the terminal PCB 6 12 mm 25 in 5 in Consider the conduit cable weight and its stress on the installatio
18. avoid activating any connected alarms or devices use the Inhibit mode to prevent an unwanted alarm Table 7 7 Test mode submenus Test Submenu Display Icon Test Bump bUmP B Bump test detector with inhibited alarm outputs 4 20 4 20 mA Stimulate current output Put the unit into out of an inhibit state and Inhibit n set inhibit time out Alarm Fault Sim A Simulate an alarm and fault condition To select the test menu from normal operation press the A up button for a few seconds Enter the pass code if set Use the A up or Y down buttons to select the test menu icon and press the Y accept button 7 4 1 Bump Test bUmP Note the bump test fbUmP submenu and press Y to accept The inhibit icon is also displayed indicating that no alarm outputs will be generated during this process Apply the bump test gas and the display will show the measured gas concentration Remove the bump test gas and allow the detector reading to return to zero Press X to exit Press A up or down to select another submenu Press X to return to set up calibration and test menu selection Press X again to return to normal operation In bump test mode the Modbus TCP outputs are not inhibited Only the 4 20mA and alarm outputs are inhibited The bump gas test is a functional check only Consult local guidelines
19. items are required Test gas see Appendix B Special regulator for extractive use if using field calibration cylinder or suitable sample bag if not sampling directly from cylinder Tubing suitable for gas being applied Preparation Most of the test gases are highly toxic It is essential that personnel using these toxic gases be trained in their use Ensure that the test gas will be vented safely Applying test gas may cause alarm fault or maintenance fault indications on the 4 20 mA loop relays or digital outputs Before starting a test ensure that suitable steps have been taken to prevent these indications from triggering unwanted actions The Midas gas detector has a special mode for bump testing where the alarm outputs are inhibited see Section 7 4 1 See Tech Note 1998 0219 Protocol for Testing Toxic Gas Detectors for additional information The NF pyrolyzer should be tested in the same way as an extractive system but using NF as the test gas If NF is not available chlorine can be used at a concentration of 5 ppm If using chlorine the Freon filter must be removed 17 3 from the unit before the test replaced after the test For the PFC High Temperature pyrolyzer chlorine can also be used as a suitable bump test gas Note A test with chlorine operates the electrochemical cell and the unit s electronics but does not test the pyrolyzer module itself Note The CO cell is not designed for us
20. web buttons at the bottom of the screen will be greyed out and will not be selectable See Table 6 3 Set up menu overview Note In order for the changes to take effect the System Reboot button should be activated When this takes place the Midas unit will be temporarily offline from detecting gas while it recovers and a fault condition will be transmitted via any connected energized relays or analog connection Midas Technical Handbook 13 13 Honeywell Midas Gas Detector Diagram 13 13 Security http 169 254 60 47 8 4 x p Tools Help 2702024 E et gt sly Favorites Midas Unit 2 12340338 Honeywell Analytics fh E 7 amp y Pager Safety y Toosv Or 12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 2 12 bulla 5 IP Address 169 254 60 47 General Security Configuration Status Event History EN Calibration Certificate Password esse Contact Info Help Re Enter Password Configuration Test Bump Test e Alarm Faul Simulation Done Internet Protected Mode Off fay 890 A 4 digit numerical code can be entered to prevent unauthorized changes to the Midas transmitter this code can also be entered or changed via the keypad directly on the transmitter Once activated
21. will auto adjust Flow rate cc min 500 Flow is constant 0 150 cc min Tubing OD mm in 6 35 0 25 Midas changes the flow Yes gradually If external flow Tubing ID mm in 3 18 0 125 Low changes are large and rapid 0 150 cc min elo Likely the final reading will be different Honeywell Analytics recommends the thick wall tubing 1 8 9 from what Midas expected ID for best speed of response Midas will issue Fault 81 The flow rate is electronically maintained at approximately Minimum flow rate for the 500 cc min and may vary within acceptable tolerances pump is 300 cc min With this external flow the auto adjust g Medium Yes and N Y t work because th Table 4 2 Outlet sample specifications 200 450 cc min MONO OS A cannot produce a flow at this low level The problem is worse if Outlet Sample Specifications there are flow fluctuations Maximum High Midas cannot reduce the cd Tubing Length m ft 30 100 4 gt 600 cc min Yes and No Yes external flow Midas will issue Fault 81 due to high flow Back Pressure at Exhaust Point 20 3 cm H O 8 in H O Maximum Excluding tubing Tubing OD mm in 6 35 0 25 Tubing ID mm in 4 76 0 188 Midas Technical Handbook 4 7 4 4 In line Filters External filters must be used to protect the tubing from contamination Use particulate filter part number 780248 for normal gases and 1830 0055 or
22. 08 or lower software Table 11 1 Fault code descriptions rau Description Condition Recovery m9 Simulated maintenance fault User has generated a simulated fault Reset simulated fault m10 Over range A large concentration has been detected The Supply known clean air to the Midas and clear this fault Midas requires an independent confirmation that the gas hazard is gone m11 User calibration expired The user specified calibration interval has elapsed Perform zero and span calibrations Increase span calibration period m12 Cartridge expires soon Cartridge is old and will expire soon Replace the cartridge with a new cartridge m13 Flow error Midas is no longer able to regulate flow high or Check filters and pump low flow condition TE m Check pressure at inlet and outlet and assure they are within specification See Section 4 3 Sample and exhaust tubing calculations m14 Interferent present An interferent is degrading the ability of the Midas Check application to detect gas m15 Temperature near limit Temperature within 2 Celsius of limit Check installation environment m16 Baseline fault Sensor baseline has drifted Check for background gas concentration temperature or humidity fluctuations Perform zero calibration Replace cartridge m17 Inhibit timeout Transmitter has been in inhibit mode too long Resume monitorin
23. 10 Gas Alarm Configuration Favorites Midas Unit M12340338 Honeywell Analytics M E odo Pager Safetyw Tools Or Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Za IP Address 169 254 60 47 General Gas Alarm Configuration e Status Event History Calibration Certificate cas Ha e Contact Info Help Range 0 0 1000 96LEL Configuration E Alarm Level 1 100 LEL o Normal up Depletion down Alarm Level 2 200 LEL Normal up Depletion down General O EEIEIIE Alarm Delay 3 seconds Faults e Network Latching Alarms e Secu E esu Relay State Normally De Energized Ld Normally Energized Calibration Period Calibrati 180 days Accept Reset Change to Default Zero Calibration Span Calibration Flow Calibration e 4 20 mA Calibration Test Done Internet Protected Mode Off far 895 y The Gas Alarm Configuration page enables users to select the desired gas calibration It also permits setting alarm levels and other parameters Additionally alarms may be set to trigger on decreasing concentration this is useful with oxygen An alarm delay of O to 10 seconds can be set up in order to give a programmable delay time before the alarm signal is processed this can be used to prevent nuisance alarm
24. 1991 0147 for corrosive gases Replace the filter every 3 months Refer to Appendix B for specific gases 4 5 Local Detector Option The Midas gas detector can also be used to monitor for gas at the location of the detector To do this an inline filter is simply connected to the sensor cartridge gas inlet port The external dust filter part number is 780248 for normal gases and 1830 0055 or 1991 0147 for corrosive gases The area around the detector is then being monitored as opposed to a sample being drawn from a remote location Diagram 4 4 Local gas detector option Et MDA Scientific Midas MIDAS T 001 transmitter installed with in line particulate QAMMA filter for local ambient monitoring mode Midas Technical Handbook Honeywell Midas Gas Detector 4 6 Electrical Installation Access for the electrical wires to the terminal module is made via the PG16 cable gland located at the bottom of the mounting bracket assembly The cable gland can be removed and replaced with a suitable conduit fitting if required The wire routing of a typical installation is shown in the diagram below wiring details are shown in Diagram 4 6 Diagram 4 5 Typical wire routing Relay NO NC 4 20mA Jumpers Analog Output Terminals Relay Contact Terminals Power Switch Ethernet Cable Cable Gland
25. C Serial Ni 2K5049 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 2 12 bula 5 IP Address 169 254 60 47 GIL Status Make Printable Version e Event History Gas Hydrogen Relay Configuration Instrument Calibration Certificate Contact Info Help Concentration 0 0 WLEL Latching Faults YES Alarm Normal Reset Fault Relay State Normally Energized Configuration Fault Normal DateTime E Flow 517 Current Time 8 50 PM General e Gas Alarms Pyrolyzer Current Date 9 26 2012 e Faults Cartridge SIN 12050491 Date Format MM DD YYYY enn ET e Security Cartridge Expires 9 17 2017 Alarm Level 1 10 0 LEL Normal up Last Span Calibration 7 9 2012 Calibration Alarm Level 2 20 0 LEL Normal up Calibration Due 171 days E Latching Alarms YES Cartridge Expires 1817 days Zero Calibration Es e Span Calibration Alarm Relay State Norrmally De Energized Main 2 12 build 5 4 20 mA Calibration Flow Rate N A Co processor 125 Temperature N A Sensor 14 Test Pyrolyzer O e BumpTest e Alarm Faul Simulation Done Internet Protected Mode Off fay Q On the Status web page all faults and alarms are indicated as well as real time concentration reading A fault or alarm can be reset from within the web page by clicking the Reset button If the fault condition is still present the fault status will be indicated again on the web page Infor
26. Diagram 4 7 Generic Example Midas 4 Wire Isolated Output MIDAS Simplified Internal Schematic Diagram 4 8 Generic Example Midas 3 Wire Sourcing MIDAS Simplified Internal Schematic R Load Midas Technical Handbook Honeywell Midas Gas Detector configurations Specific wiring instructions for connecting a Midas to a Honeywell Analytics Sieger System 57 are provided on pages 4 12 to 4 16 Specific instructions for connection to a Honeywell Analytics TouchPoint are provided on pages 4 17 to 4 20 and the HA71 on pages 4 21 and 4 22 Note When wiring the Midas Transmitter to a controller program the controller for a 1 2 second delay before reporting to prevent false alarms Diagram 4 9 Generic Example Midas 3 Wire Sinking Output MIDAS Simplified Internal Schematic R Load Diagram 4 10 Generic Example Midas Isolated 4 20 mA Output w PoE Power MIDAS Simplified Internal Schematic Ethernet 48 VDC RJ 45 Connector Honeywell Midas Gas Detector Diagram 4 11 Midas to 5701 4 Wire Isolated Connection J5 c Cr N E xo oz Ez supply 24 V COM 00000000 MIDAS Simplified Internal Schematic INT EXT Internal Power Loads Controlled Current Source Midas Technical Handbook Sieger System 57 Relay Fiel
27. Inhibit H2 8 Wed Sep 26 19 53 06 2012 SETUP SET Setting up Inhibit H2 9 Wed Sep 26 19 39 58 2012 COOL COOL Ihe cartridge temperature H2 26 2 10 Wed Sep 26 19 39 28 2012 LOAD SME CELL Load Data 12K50491 H2 had Done Internet Protected Mode Off far R120 v Note Pop up blockers may interfere or prevent proper operation Midas Technical Handbook 13 6 Honeywell Midas Gas Detector Diagram 13 6 Gas Concentration Graph Une 4912340538 Hore AAR Wo reme coo RR H O http 169 254 60 47 sing gt File Edit View Favorites Tools Help dk Favorites Midas Unit M12340338 Honeywell Analytics Jo E e Page Safety Tools Or A HA M12340338 Honeywell M12340338 Cartridge Serial Number 12 50491 MIDAS Gas Detector MDA Scientific Midas Gas Detector Midas Ver 212 bulla 5 169 254 60 47 Event Details Time Wed Sep 19 19 32 28 2012 Gas COS Description ALM1 Alarm Level 1 Concentration 120 LEL asz 188 159 159 152 155 453 151 150 12 130 130 130 130 130 130 130 130 130 130 130 130 10 130 10 o 5 10 15 Time seconds Done A Internet Protected Mode Off 985 This web page is accessed from the Details button from the Event History page The gas concentration levels for a given alarm are displayed for a period of
28. Internal Power Loads J5 EXT Current Source INT touch point Simplified Internal Schematic 1 Midas Technical Handbook 4 18 Honeywell Midas Gas Detector Diagram 4 18 Midas to Touchpoint4 4 Wire Connection supply INT NE N Ea E SE Las il E Q 2 E 2 touch point4 NC J3 B Relay3 NO EXT INT supply 8 O gt J5 5 7 e S s O 4 O 2 TS E 3 O E Os E e PWR E COM 1 O O z ES Shielded 28 ON Cable MI External Customer Provided Power Supply 24 VDC Power Supply DAS Simplified Internal Schematic touchpoint4 1 Simplified Internal Schematic Internal Power Loads Controlled Current Source Midas Technical Handbook Honeywell Midas Gas Detector Diagram 4 19 Midas to Touchpoint4 3 Wire Sourcing Connection O O O A J4 INT EXT N EN no J1 1 NO touchpoint 4 EE Sad aaya 2 33 n E 9 EXT INT supply J5 ER CONNECTOR A a o 00000000 o Relay2 Relay1 H rel Es pwa 4 d 24V 2 COM 1 Simplified Internal Schematic touchpoint4 1 Simplified Internal Schematic 4 20 mA Controlled Internal Current Source Power Loads J5
29. Pyrolyzer for NF Description Part no Midas NF Pyrolyzer Module Pyrolyzer in combination with Midas transmitters provide detection of NF MIDAS T OOP specifically Unit includes a bolt on pyrolyzer module that operates with and universal Midas Extractive Transmitter order separately and 1 Freon in line filter Units are powered via direct connection to transmitter unit Consult Honeywell Analytics for additional gases that may become available via pyrolysis Pyrolyzer includes Pyrolyzer Quick Start Guide and installation screws Order the NF cartridge MIDAS S HFX or MIDAS E HFX separately Order the ventilated top cover MIDAS A 039 separately 15 3 Midas High Temperature Pyrolyzer for Perfluoro Compounds Description Part no Midas PFC Perfluoro Compound Pyrolyzer Module PFC Pyrolyzer in combination with Midas MIDAS T HTP transmitters provide detection of various PFC compounds including C F C F SF CH F and CH F Unit includes a bolt on pyrolyzer module that operates with any Universal Midas Extractive Transmitter order separately Units are powered via direct connection to transmitter unit Consult Honeywell Analytics for additional gases detectable with this option Pyrolyzer includes Pyrolyzer Quick Start Guide and installation screws Order the PFC cartridge MIDAS S CFX or MIDAS E CFX separately Order the ventilated top cover MIDAS A 039 separately 15 4 Midas LonWork
30. Simplified Internal Schematic J4 INT EXT 2 11 EE 4 20 mA 28 Controlled mI Internal Current Source Es Power 10 Loads am EN See Relay function table below Display Description Relay 1 Relay 2 Relay 3 Relays ar r 1FLt Instrument Fault Alarm 1 Alarm 2 Instrument da e use Only Fault SE configurable Separate Fault Maintenance Instrument 22 288 Relays pny Alarm Fault Fault Combined Fault Alarm Alarm2 Any Fault Relay Relays respond to Modbus or u registers or LonWorks g reg Note The 3 relays onboard the Midas unit can be controlled remotely from a separate controller system using Modbus TCP commands or via LonWorks if the optional interface is used In this remote mode the relays cannot be controlled by the Midas itself and only by the remote controller device PLC SCADA etc Midas Technical Handbook 4 10 4 7 Electrical Connections Midas can be powered by either 24 VDC via traditional discrete wiring or by approximately 48 VDC delivered through the Ethernet cable from a PoE source In either case the 4 20 mA analog output can be used This can be configured for fully isolated operation With 24 VDC power the 4 20 mA output can be configured for sink source or isolated output operations Below are some schematic diagrams of typical electrical connection
31. an alternative the actual target gas can always be used instead of a cross sensitive gas Higher concentrations than the recommended ones can be used if necessary but extra time may be needed for the reading to recover to zero IMPORTANT Do not exceed the recommended concentrations or application times where Hydrogen Sulfide is used to test Silane Doing this can damage the cell B 7 Honeywell Midas Gas Detector C Warranty Statement Midas Technical Handbook C 1 Warranty Statement products are designed and manufactured to the latest internationally recognized standards by Honeywell Analytics under a Quality Management System that is certified to ISO 9001 As such the Midas Transmitter including the pump is warranted under proper use to the original end user purchaser against any defects in materials or workmanship related failures for a period of 24 months from the date of first turn on or 30 months from delivery from Honeywell Analytics to the customer whichever is less Separate warranty conditions apply to the sensor cartridges limited as indicated below During this period Honeywell Analytics will repair or replace defective parts on an exchange basis F O B to approved service centers on a global basis This warranty does not cover damage caused by accident abuse abnormal operating conditions or extreme poisoning of the sensor cartridge Defective equipment must be returned to Honeywell Analyti
32. bottom front of the chassis Pull the main chassis forward to disconnect it from the mounting bracket assembly Honeywell Midas Gas Detector 6 Locate the filter access slot in the side of the main chassis Diagram 8 6 Filter location Main chassis S Soot ex Filter access slot Filter MIDAS A 009 7 Carefully disconnect both sides of the filter from the pump manifold 8 Remove the old filter and replace with a new filter ensuring that the filter connectors are fully engaged in the manifold ports and that the filter is the correct orientation arrow pointing downwards Orient the metal retaining clamps away from the pump wiring to prevent damage 9 Route pump wiring away from the chassis and manifold to prevent damage Diagram 8 7 Filter orientation Filter connector Manifold ports OS EL New filter correct orientation 8 5 System Leak Check Procedure Caution When performing a leak check the Midas must be placed in inhibit mode to prevent false concentrations or faults to be activated when plugging the Sample and or Exhaust Lines Example O oxygen plugging of the ports causes the O levels within the Midas flow path to be depleted as the sample becomes stagnant The result is the concentration levels begin to fall and trigger the alarms for the O depletion 1 Place the Midas into Inhibit see Secti
33. details of gas ID codes 5 Use the A up or down buttons to select if humidified HUm or calibration gas is being used 6 Usethe A up or W down buttons to change the value to the concentration of span calibration gas being used 7 10 10 11 12 13 14 15 Note Press to confirm when ready and the icon goes steady Apply the span gas The dots on the left of the display indicate progress to a successful span The display will show the span gas reading and if measured to be stable for an appropriate period of time will display PASS If the span calibration is unsuccessful then the display will show an error code see below Press to exit Press A up or V down to select another submenu Press X to return to set up calibration and test menu selection Press X again to return to normal operation The change in the gas bottle icon s contents gives an indication as to the relative stability of the gas reading The arrows and bars inside the cylinder indicate whether it is rising or falling as appropriate see table below Table 7 5 Calibration codes Code Code meaning PASS Successful Calibration FL OH Zero Calibration Timeout Over Range FL OL Zero Calibration Timeout Under Range FL OU Zero Calibration Timeout Unstable FL SH Span Calibration Timeout Over Range FL S
34. fault outputs relays 4 20 mA Faults current loop and Ethernet will be disabled Inhibited All monitoring functions inhibited No Full ALL monitoring is performed and no alarms or Inhibit faults except for Inhibit Timeout will be reported 7 4 4 Stimulate 4 20mA 4 20 mA 1 Use the A up or W down buttons to select the Honeywell Midas Gas Detector 4 20 submenu and press to accept 2 The display shows S 04 indicating a 4 mA output is being stimulated 3 Use the A up or down buttons to increase or decrease current as desired in the range of 1 to 21 mA Displayed as S xx xx indicating mA current being output 4 Press X to return to the 4 20 submenu selection 5 Press X to return to set up calibration and test menu selection Press X again to return to normal operation Caution Proceeding with 20 mA stimulation may cause unexpected alarm activation Only authorized operators should perform this task This mode cancels itself in 5 minutes Midas Technical Handbook 7 15 Honeywell Midas Gas Detector 8 Routine Maintenance Midas Technical Handbook 8 1 8 Routine Maintenance Midas is a fully serviceable product designed with modular components that can be readily replaced by trained service personnel so as to minimize the time that the gas detector is not available External in line air filters shou
35. for recommended best practices Bump test concentrations recommended in Section 17 are calculated to generate a minimum first alarm level response 7 4 2 Alarm Fault Test SSIm 3 Use the A up or P down buttons to select the alarm fault test SIm submenu and press to accept The display shows SIm and the A1 A icon Use the A up or W down buttons to select A1 A2 A or Fault AN for test simulation Midas Technical Handbook 9 steady A indicates an m9 simulated fault and a flashing A is an F39 simulated fault Press toselectand SurE is displayedto indicate that the next step will activate the selected output relay analog and digital Press v and the display flashes on indicating that the selected output is activated Press X to return to step 2 and select a different output for test Press X to exit Press up or down to select another submenu Press X to return to set up calibration and test menu selection 10 Press X again to return to normal operation Note If latching faults or latching alarms are set up and either of those are simulated then the user will have to reset them with the X button in normal operation mode 7 4 3 Inhibit State InH T 2 Midas Technical Handbook Use the A up or down buttons to select the inhibit InH submenu and press
36. list of recommended bump test gases Midas Technical Handbook 13 20 Honeywell Midas Gas Detector Diagram 13 20 Alarm Fault Simulation 8 5 x Bano SA di Favorites Midas Unit 12340338 Honeywell Analytics A E 7 dE v Pager Safety Tools Or Name HA M12340338 Honeywell Serial Number 1112340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector we ee IP Address 169 254 60 47 Configuration a E Alarm Fault Simulation e General e Faults e Network CAUTION Proceeding with Alarm or Fault Simulation may cause unexpected alarm activation e Security Only authorized operators should perform this task e Time Date MIDAS continues to monitor gas during simulation Simulation No Simulation Calibration Simulate Alarm 1 Simulated Alarm 2 e Zero Calibration 2 Simulate Instrument Fault e Span Calibration P Simulate Maintenance Fault Flow Calibration F 420 ma Calibration cz Test e Bump Test Simulation n e Inhibit e 4 20 mATest Authorized Users Done Internet Protected Mode Off far 995 Via this web page operator test the alarm control philosophy by simulating a number of alarm or fault scenarios Note that activating these simulations will drive any external alarm devices connected to the Midas including the Modbus TCP and the relay outputs The simulation may be
37. modes are intended for use by trained personnel or service engineers only Access to these modes can be pass code protected by following the procedure in Section 7 2 7 Set up calibration and test modes are used to make setting changes calibrate and test the detector To select set up calibration and test mode press and hold the A up button or down button for one second The unit will automatically go to the main normal operation status display from setup calibration test menus but not from inside a setup calibration test function if no button is pressed for 5 minutes or if an alarm level is exceeded PASS CODE If a pass code has been set the display will show 0000 with the first flashing Use the A up or down buttons to set the first digit of the pass code Press y to enter the first digit The second digit will then flash Repeat the process until all four pass code digits have been entered Please record your pass code in a separate archive that can be securely retrieved Failure to be able to retrieve your pass code may lead to delays in gaining access to all the protected functions in each Midas unit If an incorrect code is entered the display will show Err and return to the normal operation mode If a pass code is forgotten contact your local Honeywell Analytics service department After successfully entering the pass code if set the Midas Technical Handbook Honeywell Midas G
38. normal operation 7 2 9 Set Pump control frequency 1 2 Midas Technical Handbook Select the set Pump Control Frequency PUmP submenu and press v to accept The flashing Pump Control Frequency 7 9 Honeywell Midas Gas Detector configuration is displayed Use the A up or down buttons to change the configuration Note Holding down the button will increase the increment speed Press to set Pump Control Frequency UPat displayed Press X to return to set up calibration and test menu selection Press X again to return to normal operation 7 3 Calibration Menu CAL The calibration menu allows the calibration settings of the detector to be changed The calibration menu comprises of 4 submenus as shown in the table below Table 7 4 Calibration mode submenus Icon Calibration setting Zero Set detector zero Span B Set detector span Flow Calibrate detector sample flow rate mA mA Calibrate detector analog output To select the calibration menu from normal operation press the A up button for a few seconds Enter the pass code if set Use the A up or down buttons to select the calibration menu s icon and press the Y accept button 7 3 1 Zero Calibration jOCAL 1 Usethe A up or W down buttons to select the zero calibration FOCAL submenu and press Y to accept 2 The zero calibrati
39. of the fault codes and recovery information as well as a link to Honeywell Analytics website Midas Technical Handbook 13 9 Honeywell Midas Gas Detector Diagram 13 9 General Configuration E 8 5 x E sos Help ie Favorites Midas Unit M12340338 Honeywell Analytics E d Pager Safety Tools Qv 12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector mica DEUS IP Address 169 254 60 47 General General Configuration e Status Event History Calibration Certificate Location MIDAS Gas Detector e Contact Info Help Date Format MM DD YYYY DD MMYYYY Configuration 3 Backlight Classic e encre Multi Color e Gas Alarms e Faults Accept Reset e Network e Security e Time Date Calibration e Zero Calibration e Span Calibration Flow Calibration e 4 20 mA Calibration Test Internet Protected Mode Off fey Q5 v t Done This panel allows the user to customize the location identifier for the individual Midas units with more detailed text Enter the text and click Accept to update the Midas web page The date format can be selected to suit the regional preference Midas Technical Handbook 13 10 Honeywell Midas Gas Detector Diagram 13
40. on the upper left indicates that the first part of the IP address is being displayed Use the A up or Y down buttons to change the address setting between O and 255 Press to display the second part of the address The two dots on the upper left indicate the 2nd portion of the address Use the A up or down buttons to change the address setting between O and 255 Midas Technical Handbook 10 11 12 13 Note 1 2 Honeywell Midas Gas Detector Repeat for the third and fourth parts of the IP address Press Y to display the flashing first part of the subnet mask value Use the A up down buttons to change the address setting between O and 255 Press accept and repeat for the second third and fourth subnet values The number of dots in the upper left indicates which part of the subnet address is being viewed Press to update the changes displayed The unit will request a reboot to implement the IP configuration If the IP address is changed the new settings will not be implemented until the Midas unit is rebooted or off 7 2 7 Set pass code Select the set pass code submenu and press to accept Press up or V down to set the first pass code value Note Holding down the button will increase the increment speed Press to enter the first value and move to setting the secon
41. setting in Windows XP x File Edit View Favorites Tools Advanced Help Qe O p D see roses 3 19 Address network Connections Name type s Ph owner LAN or High Speed Internet Local Area Connection 2 Abe Wizard fnew Connection Wizard Wizard 1 Local Area Connection 2 Properties General Authentication Advanced Microsoft Word Connect using Internet Explorer Codewright v5 0 Microsoft Excel This connection uses the following items SS Client for Microsoft Networks E File and Printer Sharing for Microsoft Networks E QoS Packet Scheduler Install Uninstall Windows Explorer Command Prompt WinAce Archiver C Builder 4 ES Intel R PRO 100 VM Network Connection Configure 1 Local Area Connection 2 Status General Support 1 Connection Status Connected Duration 06 38 40 100 0 Mbps Speed Signal Strength Activity Sent Received Packets 92 690 103 005 Disable Internet Protocol TCP IP Properties General You get IP settings assigned automatically if your network supports this capability Otherwise you need to ask your network administrator for the appropriate IP settings Obtain an IP address automatically Use the following IP address IP address 169 254 60 42
42. simple form how a gas sample is drawn through the pyrolyzer module by the pump located at the end of the gas path It is first routed to the pyrolyzer via the Freon filter before being sent to the gas sensor cartridge where the gas measurement is taken The sample continues via the flow meter through the dust filter and is finally exhausted from the instrument Adjustment of the gas flow through the instrument is done automatically It is recommended to perform a leak check see Section 8 5 before performing a flow calibration To perform a flow calibration refer to Section 7 3 3 Diagram 9 3 Pyrolyzer configuration gas flow Laminar flow element Flow measurement Pump Pressure sensor Gas sensor Pyrolyzer Heater Orifice Bypass flow Pyrolyzer Needle Valve Heater flow adjustment Note Model 3 does not require flow adjustment Freon filter Gas sample Gas sample Exhau R Inlet E 9 1 Fitting the Pyrolyzer Module 1 Disconnect power to the detector 2 Unscrew the thumbscrew on the front panel 3 Remove the cover by pulling it forward off the chassis as illustrated in Diagram 9 4 Diagram 9 4 Removing the Midas cover chassis cover thumbscrew retaining screws 2 mounting bracket sample inlet port sample outlet port 4 Unscrew the two retaining screws located at the bottom front of the chassis 5 Pull the chassis forward to d
43. simulation or X again to return to test submenu Display flashes SIm and simulates the selected A1 A2 or Fault display and output UPdt is displayed and unit enters Selected inhibit state Display returns to submenu Midas Technical Handbook Honeywell Midas Gas Detector 7 Detailed Procedures for Navigating Mode Submenus Midas Technical Handbook 7 1 7 Detailed Procedures for Navigating Mode Submenus The following sections provide step by step procedures for navigating all the modes and submenus 7 1 Review Mode m Review mode allows the settings of the detector to be reviewed safely without any changes being made Review mode consists of 7 submenus as shown in the table below Table 7 1 Review mode submenus Review submenu Icon Settings Displayed Software SW Revision and checksum Sensor cartridge and gas ID codes a alarm 1 and alarm 2 configuration and set points time delay latching non latching energized de energized Faults A Configuration Latching non latching energized de energized Days left to next calibration due and date Calibration of last calibration Time Date Current year date and time Auto address selection on off IP address E address sub net mask values View the date time and details of the Event log A last seven alarm fault and maintenance fault events To select review mode fr
44. while in Inhibit Mode Except in Inhibit Monitoring and Outputs Midas Technical Handbook 13 22 Honeywell Midas Gas Detector Diagram 13 22 4 20mA Test E http 169 254 60 47 8 4 x E sing P EIA as X Edit Vie Favorites Tools Help t ools el Ye Favorites Midas Unit M12340338 Honeywell Analytics E y Pagey Safety Took Or Name HA M12340338 Honey ell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 2 12 build 5 IP Address 169 254 60 47 4 20 mA Analog Output Test gt Flat e Bump Test Simulation e inhibit Proceeding with 4 20 mA test may cause unexpected alarm activation Only authorized operators should perform this task Cancel Decrease Authorized Users e Diagnostics e Service Menu e Adv Pyrolyzer Diagnostics Adv Pyrolyzer Heater Test Adv Pyrolyzer Flow Test s Done Internet Protected Mode Off fa y 100 This web page stimulates the analog 4 20 mA output to go to any desired current in 1 mA steps between 1 and 21 mA This can be used to test the response of external equipment Midas Technical Handbook 13 23 Honeywell Midas Gas Detector Diagram 13 23 Authorized Users 8 6 x B ZEAE Uy Favorites Midas Unit 1234
45. with Power over Ethernet 48 VDC Power over Ethernet IEEE 802 3af compliant Power Consumption Transmitter unit 5W Transmitter with pyrolyzer std or hi temp lt 12 95 W Transmitter with LonWorks Module 8W Transmitter with LonWorks and pyrolyzer lt 15 95 W Outputs Visual Alarm power and fault LEDs plus LCD with all gas readings and events Alarm1 Alarm2 Fault Relays 3 rated 1 0 A 30VDC or 0 5 A 125 VAC max Relays 10 uA 10 mV minimum configurable as normally open or closed latched or unlatched Analog 3 wire sink 3 wire source or 4 wire fully isolated 0 to 21 mA Digital Communications Modbus TCP Ethernet Power over Ethernet PoE LonWorks Interface Module Service Port Certification amp Specification European RS232C PPP protocol C CE Marked for sale in European Community Meets EN 50270 2006 Type 2 and EN 61000 6 4 2007 Environmental ETL approved UL61010 1 Ed 3 Electrical IEEE 802 3af 2003 Midas Technical Handbook 16 2 Honeywell Midas Gas Detector Response Times Typically Refer to Individual Cartridge Datasheets Transport System Flow Rate 500 cc min 10 in H O maximum pressure vacuum at inlet and exhaust points Transport Time 2 30 seconds maximum Performance LDL LAL LAL Y TLV typically 12 FSD FSD Typically 4 x TLV Sampling Distance Tu
46. 007 Diagram 8 5 Location of pump module The following procedure should be followed carefully and only performed by suitably trained personnel 1 2 Isolate the power to the detector Unscrew the thumbscrew located on the front panel Remove the cover by pulling it forward off the main chassis Unscrew the two retaining screws located at the bottom front of the chassis Pull the main chassis forward to disconnect it from the mounting bracket assembly Remove the 4 pump module screws Honeywell Midas Gas Detector 9 Fit the new pump module following the steps above in reverse order Orient the metal retaining clamps away from the pump wiring to prevent damage Route pump wiring away from the chassis and manifold to prevent damage 7 Remove the two fixing clips and disconnect the tubes at the manifold O NI 9 a NO Er 8 3 Reassembling the Detector 1 Align the PCB at the top rear of the main chassis with the connector located at the top of the mounting bracket assembly 2 Atthe same time align the two tubes at the bottom rear of the main chassis with the two tubes located on the bottom of the mounting bracket assembly 3 Slide the chassis backwards on the mounting bracket assembly so that the PCB connector and tubes engage simultaneousl
47. 0338 Honeywell Analytics ta gt Y dE v Pager Safetyw Toosv Br Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 2 12 build 5 IP Address 169 254 60 47 e Zero Calibration e Span Calibration Flow Calibration 4 20 mA Calibration Please input password Password Ener Service Menu Test Forgot your password Bump Test e Alarm Fault Simulation e Inhibit 4 20 mA Test Getthe Key Authorized Users 100800851165 e Service Menu Adv Pyrolyzer Diagnostics e Adv Pyrolyzer Heater Test e Adv Pyrolyzer Flow Test L3 m Done Internet Protected Mode Off fay 100 The Diagnostics and Service menus are for specialist product support activities performed only by approved Honeywell Analytics service personnel and are not available to the end user Midas Technical Handbook 13 24 Honeywell Midas Gas Detector 14 Typical Installation Topologies Midas Technical Handbook 14 1 Honeywell Midas Gas Detector 14 Typical Installation Topologies Midas has very flexible installation options to allow the user to select the one most suitable for their specific application 14 1 Conventional Installation Relays 24V DC Relays 24V DC Midas Technical Handbook 14 2 Honeywell Midas Gas Detector 1
48. 1 Screen 2 Screen 3 Screen 4 using bump test gas and for simulation of alarm and fault display and output operation The test menu also contains the detector Inhibit facility Use the up and W down buttons to select either bump test or alarm fault test Press the Y accept button to enter that submenu The table below shows an overview of the test submenus and how they are navigated For a detailed step by step instruction of how to test the detector operation refer to Section 7 2 Note In bump test mode the Modbus TCP outputs are not inhibited Only the 4 20mA and alarm outputs are inhibited The bump gas test 15 a functional check only Consult local guidelines for recommended best practices Bump test concentrations recommended in Appendix B are calculated to generate a minimum first alarm level response Bump bUmP Alarm fault Sim SA Inhibit Inh Apply bump test gas and display shows measured gas concentration with all alarm outputs inhibited Display shows Sim and the A1 A symbol 4 states alm 1 2 alm 2 A flashing inst flt AN maint flt Press or V to select ALm ALm Ft ALL or nonE inhibit state Display shows S XX where XX is the mA value Press A or V for the desired mA output Press X to exit to test menu Display shows Set inhibit timeout period Press X to exit and select another
49. 13 CH7 15 gt O ON olo o olo o olo o sw i EXC 10 LO EXC LO EXC LO i CH2 10 CH4 12 CH6 14 CH8 16 OFF RJ 45 ANALOG INPUTS 24 VDC Power Supply Pwr 4 Wire 4 20mA Transmitter MIDAS Simplified Internal Schematic INT EXT 71 Analog Input Card Internal Power Loads Sense Resistor Not optically isolated Midas Technical Handbook 4 22 4 8 Refitting the Main Chassis The main chassis can be refitted to the mounting bracket assembly using the following steps 1 Align the PCB at the top rear of the main chassis with the connector located at the top of the mounting bracket assembly 2 Atthe same time align the two tubes at the bottom rear of the main chassis with Honeywell Midas Gas Detector 4 9 Installing the Sensor Cartridge The Midas sensor cartridge is supplied separately and needs to be fitted to the detector s main chassis The following steps and diagrams detail the procedure for installing the sensor cartridge for the first time This procedure is carried out with the power off and the detector cover removed the two tubes located on the bottom of the mounting bracket assembly 3 Slide the chassis backwards on the mounting bracket assembly so that the PCB and connector and tubes engage simultaneously See diagram below 4 Ensure the PCB connector and tubes are ful
50. 3 Manual Subnet mask byte 2 Manual Subnet mask byte 4 Set Pass Code PWd Press A or W to set pass code Press A or W to set pass code digit 2 Press A or to set pass code digit 3 Press A or W to set pass code digit 4 Press A or Y to confirm pass code digit 1 Press A or Y to confirm pass code digit 2 Press A or W to confirm pass code digit 3 Press A or WW to confirm pass code digit 4 MIDAS E LEL 0 1825 days Midas Technical Handbook 6 7 6 3 2 Calibration Menu Overview s CAL The calibration menu allows calibration of the detector zero span flow and 4 20 mA The menu is simply navigated using the A up and down buttons to select the required submenu and then using Y accept button to enter that submenu The A up and Y down buttons are used to make any changes to a selected setting and are confirmed using the accept button The X cancel button can be used to exit the submenu and allow selection of a different submenu or can be pressed again to exit to the main set up calibration and test menu Pressing the X cancel button again returns the detector to normal operating mode The table below shows an overview of the calibration submenus and how they are navigated For a detailed step by step instruction of how to change the detector calibration settings refer to Section 7 2 Midas Technical Handbook Displ
51. 30 seconds 15 seconds before and 15 seconds after the alarm occurred Midas Technical Handbook 13 7 Honeywell Midas Gas Detector Diagram 13 7 Calibration Certificate 5 gt W Favorites Midas Unit 2112340338 Honeywell Analytics Tho EC y Pagey Toos Or Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 212 buta 5 IP Address 169 254 60 47 General Honeywell Analytics Ltd 4 Stinsford Rd Status Poole Dorset Honeywell e Event History United Kingdom Certifieata mille Contact Info Help Tel 44 1202 676161 Fax 44 1202 678011 Confi Email sales zelana com Web http www honeywellanalytics con x E E e Gas Alarms Electronic Certificate of Calibration e Faults e Network Part Number MIDAS E LEL R3 DEL Serial Number 12K50491 Time Date Calibration Date Mon Jul 9 09 04 36 2012 Cali Gas Type H2 0 100 0 LEL Zero Calibration This sensor cartridge was calibrated using equipment which is subject to regular Span Calibration verification and whose calibration is traceable to national standards Gases for which e Flow Calibration traceability to national standards is not available have been obtained from reputable 4 20 mA Calibration sources The calibration was carried out in accordance with the gen
52. 36 0 4 ppm 9 05 ppm mI 1 ppm S E SF4 or 1830 0055 780248 TEOS TEOS 3 6 40 ppm 5 ppm 10 ppm MIDAS S E TEO fs id 1830 0055 d Hexafluoride 1 12 1 5 ES ppm ose S E o 1880 0055 IE dungeon Hexelivonce 0 18 2ppm 0 25 ppm 0 5 ppm MIDAS S E HFL 500 Low Level 1880 0055 Midas Technical Handbook B 6 General Notes 1 Midas detectors are not ETL approved for monitoring in or sampling from classified areas above 25 LEL 2 End of line particulate filter 780248 MUST be removed when pyrolyzer unit is calibrated bump tested with recommended gases other than target gases 3 Pyrolyzer unit requires longer warmup time 60 min Recommended to keep the sample lines as short as possible where the RH condition at the sample point is high above 50 RH there will be some sample loss due to absorption onto the sample line When calibrating or bump testing NF sensor cartridges with Cl or HF the charcoal Freon filter 1830 0027 MUST be removed for calibration bump testing then reinstalled for monitoring 5 Freon filter 1830 0027 is required for this application 7 The most common failure in catalytic sensors is performance degradation caused by exposure to certain poisons referred to as Catalytic Poisons It is therefore essential that any catalytic based gas monitoring system should checked regularly via bump tested or re calibrated more importantly after any gas release notificat
53. 4 3 2 1 0 MSB Always zero for future expansion MSB nciMaxSendT nciMinSendT These network configuration inputs control the update rate of the network variable outputs Every NVO will repropagate after a period of nciMaxSendT or less This has a default value of 60 seconds The effective Midas Technical Handbook Honeywell Midas Gas Detector value is clamped to 180 seconds and 5 seconds regardless of the programmed value Additionally every NVO will repropagate when the status of its function block changes and nciMinSendT has expired since the last propagation This has a default value of 5 seconds The effective value is clamped to 10 seconds and 1 second nviRelay1 nviRelay2 and nviRelay3 These network variable inputs can be used to control the three internal relays from LonWorks However these NVI s will have no effect unless the Midas is configured to respond to network relay commands The following procedure lists how to configure the relays to be remotely controllable a Hold the A key for 2 seconds until is displayed b Press the Y key once to enter the setup menu The display should show ALm C Press the A key once to scroll to fault setup The display should show FL d Press the Y key once to enter the fault setup menu The display will show one of the four relay configuration codes shown in Table 5 e Press the A key as needed to sele
54. 4 2 Modbus TCP Installation _ Power over Ethernet Injector Modbus TCP Ethernet Ethernet 5 14 3 Power over Ethernet PoE Installation Table 14 1 PoE Hub Power Budget Max number of Midas Gas Detectors powered Power over Ethernet PoE or Powered Hub Dink meme 6 16 Telesyn PRO tO MIDAS UDHRSMAPBBRDAS Option a Direct Ethernet connection to 1 MIDAS b WirelessWiFi connection to all Option MIDAS units c Indirect LAN EN 5 6 connection to all Wireisess amp oRteuter MIDAS units Option c RomvrenatlilhotPoE Hub or PoE Hub Ethernet LAN network Midas Technical Handbook 14 3 Honeywell Midas Gas Detector 15 Ordering Information Midas Technical Handbook 15 1 Honeywell Midas Gas Detector 15 Ordering information This section contains details of how to order complete Midas detector and sensor cartridge kits separate transmitters and sensor cartridges as well as spares and accessories 15 1 Midas Transmitter Description Part no Midas transmitter Complete with manual and quick start guide 1 PG16 gland fitting for power in and MIDAS T 004 relays out 1 4 x 1 8 I D sample inlet tubing 10 3m 3 16 I D exhaust tubing 10 8m and a sample line tubing duct adapter Order a sensor cartridge separately for each transmitter 15 2 Midas
55. 7 NO 50 180 30 or 1830 0055 Honeywell Midas Gas Detector Maximum Calibration Bump Test Recommended Default Default Sensor Part Sensor ET Recommended Maximum End of line Alarm1 Alarm2 Number Warm up Time ID iv 1 Bump Test i Sample Line filter minutes as Gas Length m Gas Name Formula 780248 1991 0147 or 1830 0055 780248 1991 0147 3 6 40 ppm 5 ppm 10ppm MIDAS S E XHF 20 34 1 500 HF 5 20 8 Cl 5 180 30 or 1830 0055 1830 0027 Oxygen Proficiency amp E or o Deficiency 0 2 25 vol 23 5 19 5v v MIDAS S E 02X 21 VN Nitrogen Oxide 9 100 ppm j MIDAS S E NOX NO NO 30 Nitrogen Trifluoride 780248 1991 0147 or 1830 0055 780248 1991 0147 Octofluorocyclopentene 180 180 or 1830 0055 1991 0147 Ep NO or 1830 0055 1991 0147 Ozone High Level 0 036 0 7 ppm 0 300 ppm 0 600 ppm osten NO or 1830 0055 Midas Technical Handbook B 5 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 Honeywell Midas Gas Detector Maximum Calibration Bump Test Recommended Default Default Sensor Part Sensor i me Recommended Maximum End of line Gas Name Formula Alarm 1 Alarm 2 Number Warm upTime ip Calibration iv i Bump Test i Sample Line filter minutes i Gas Gas Length m 1991 0147 Sulfur Dioxide 1 ppm 2ppm MIDAS S E SO2 or 1830 0055 780248 1830 0055 1991 0147 terror m 0
56. 780248 1991 0147 or 1830 0055 780248 1991 0147 a or 1830 0055 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 780248 1991 0147 wo 9 A e 180 99 e 180 4 or 1830 0055 780248 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 180 99 Gas Formula Maximum Sensor Warm up Time minutes Sensor Part Number Default Alarm 2 Default Range Alarm 1 Calibration Honeywell Midas Gas Detector Bump Test Recommended Test Recommended Maximum Sample Line Length m End of line filter Hydrogen Bromide 0 72 8 ppm 1 ppm 2 ppm MIDAS S E HCL Hydrogen Cyanide Hydrogen Fluoride HE 1 05 12 ppm 1 5 ppm MIDAS S E HFX Hydrogen Fluoride Low Level Hydrogen Sulfide High Level Methane LEL Methyl Fluoride Nitrogen Dioxide Midas Technical Handbook 0 18 2 ppm 0 5 ppm MIDAS S E HFL 10 ppm 20 ppm MIDAS S E HSH calo o ol 10 LEL 20 LEL MIDAS S E LEL 15 ppm 30 ppm MIDAS S E XHF 20 500 B 4 3 6 40 ppm 2 100 ppm 8 100 LEL 8 120 ppm 1 05 12 ppm 2 VN 45 5 LEL 1991 0147 or 1830 0055 780248 1991 0147 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 780248 1991 0147 or 1830 0055 1991 014
57. AS T LON a Assembled in Korea The Midas uses the Free Topology FT physical layer which communicates at 78 Kbaud Each FT segment can contain up to 64 nodes and up to 2 7 Km of cable Routers permit expansion of the network to multiple segments The Midas LonWorks interface contains 2 functional blocks 19 network variables and 2 network configuration inputs It is designed for compliance with LonMark guidelines version 3 2 However it is not LonMark certified The LonMark representation of the interface is shown in Diagram 10 3 Information on LonWorks can be found at www echelon com Information on LonMark can be found at www lonmark org Many commercial LonWorks compatible products can be found at www engenuity com Midas Technical Handbook 10 4 Honeywell Midas Gas Detector Diagram 10 3 LonMark Diagram MIDAS LonWorks Gateway Device Open loop sensor Functional Block 1 SNVT ppm f Mandatory Implementation S pecific nviRelay1 nvoAlm2 SNVT_lev_disc SNVT_lev_disc nviRelay2 nvoAlmL SNVT_lev_disc SNVT_lev_disc i nviRelay3 nvoAlmS SNVT_lev_disc SNVT_switch nviReset nvoAlmThresht SNVT lev disc SNVT ppm f nvoAlmThresh2 SNVT_ppm_f nvoCellLife SNVT_elaps
58. Bit 7 2 form a heartbeat counter which increments every 2 seconds The heartbeat counter is provided to facilitate confirmation of communication This variable propagates every nciMinSendT since it is always changing Midas Technical Handbook Honeywell Midas Gas Detector Table 10 2 nvoMonState Bit Assignment bit bit bit bit bit bit bit bit bit bit bit bit E ACE OE 7 tof 11 12 13 14 S Heartbeat Counter Always Zero Monitoring Mode Always Zero Integer The description of the Monitoring Mode Integers are listed in Table 10 3 below Table 10 3 Monitor Mode Integer Description Doo amo 8 mimi Poe caltraionmese 10 6 nvoNstat This NVO conveys the general status of the gas detector The meanings of the 16 bits in this NVO are defined in Table 10 4 Note that the presence of a maintenance fault is not conveyed by this variable Table 10 4 nvoStat Description Description In calibration mode ET wo wmm e meme SSCS EN Always zero for future expansion Alarm 2 active Alarm 1 active Instrument fault fixable by new cartridge Faults 39 49 Instrument fault fixable by HA Service Faults 80 82 89 or comm fail 5 Flow instrument fault F81 Always zero for future expansion Bit3 0 Bit2 0 Volume Bit3 0 Bit2 1 LEL But3 1 Bit2 0 ppm Measuring unit code 15 LSB 14 13 12 11 1 7 5
59. Filter Extended Life for NF pyrolyzing gas detector and IPA filter 1830 0080 Freon IPA Filter for NF pyrolyzing gas detector and IPA filter 1830 0027 Flexible Conduit 21 length 0235 0128 Flexible Conduit 27 length 0235 0163 Operating Instructions and Quick Start Guide for Midas Gas Detector English MIDAS A 001 End of line particulate filter 0780248 L Bracket for vertical mounting of one Midas unit MIDAS A 032 DIN rail mounting kit for Midas Transmitter or LonWorks Interface Module MIDAS A 036 Ventilated top cover for pyrolyzer units MIDAS A 039 Midas Technical Handbook 15 4 Honeywell Midas Gas Detector 16 Specifications Midas Technical Handbook 16 1 Honeywell Midas Gas Detector 16 General Specifications Physical Size unit with Sensor cartridge 150 mm H x 65 mm W x 153 mm D 5 91 x 2 56 x 6 02 in Weight unit with Sensor cartridge 0 8 kg 1 76 Ib NF Pyrolyzer Dimensions Size 70 mm H x 63 mm W x 85 mm D 2 75 x 2 48 x 3 35 in Weight 0 41 kg 0 9 Ib High Temperature PFC Pyrolyzer Dimensions Size 100 mm H x 101 mm W x 140 mm D 3 9 x 4 0 x 5 5 in Weight 1 36 kg 3 0 Ib Power Requirements Operating Voltage 24 V Nominal 15 to 10 20 4 to 26 4 VDC Midas pyrolyzers and Midas Transmitters with LonWorks Modules have a restricted minimum voltage requirement of 21 6 VDC Operating Voltage
60. IDAS A 039 shown in Diagram 9 1 be used in all pyrolyzer applications Note Consult the label on the side of the Pyrolyzer module as shown in Diagram 9 7 for the firmware version level required in the Midas detector for proper operation Diagram 9 7 Pyrolyzer labels P N MIDAS T OP3 05 06 REV 3 S N 00001 For Non Flammable Gases Only www honeywellanalytics com This pyrolyzer is to be used only with Midas Extractive units equipped with version 1 10 or later application software Honeywell Midas Gas Detector 9 2 Reassembling the Detector 5 Set the power switch to the on position 1 Align 6 Refit the ventilated top by aligning the slots on either side with the locating tabs on the mounting bracket assembly shown in Diagram 9 9 Push the cover horizontally until seated a the PCB at the top rear of the chassis with the PCB connector at the top of the mounting bracket and b the two tubes at the bottom rear of the chassis with the two tubes on the bottom of Diagram 9 9 Refitting the top cover the mounting bracket 2 Slide the chassis backward on the mounting bracket assembly so that the PCB connector 2 tridge fitted A and tubes engage fully Push the chassis adi 222 backward the mounting bracket CAUTION Z The LCD is fragile Do not apply pressure to Z 22 its surface Za 3 Tighten the retaining screws to secure the chassis to the mounting bracket 4 Insert the
61. L Span Calibration Timeout Under Range FL SU Span Calibration Timeout Unstable Midas Technical Handbook Honeywell Midas Gas Detector Table 7 6 Calibration stability icons Stable Over Range Unstable Rising Unstable Flat Unstable Falling Under Range 7 3 3 Flow Calibration FLOW L Use the A up or down buttons to select the flow calibration FLOW submenu and press to accept The flow icon with the dot at the bottom starts flashing in order to tell the user that the unit is ready to read the zero flow offset The inhibit icon is also displayed indicating that no alarm outputs will be generated during this process Press to confirm and the icon goes steady anda count down from 10 is shown as the zero flow offset is read The display will show the flashing flow icon with the dot approximately 1 2 way up the icon to tell the user to set the set point 1 flow 500 cc min Press A up or W down keys to adjust the reading on the external flow meter to the setpoint 1 target value NOTE The reading must be 50 cc min of target to be accepted Press to confirm and the target value flashes Press A up or W down to enter the actual 10 11 12 13 14 15 16 17 value read on the external flow meter the increment speed Press to confirm and the icon goes ste
62. MIDAS S HFX sensor cartridge into the sensor cartridge chamber see Diagram 9 8 and refer to the Sensor Cartridge Installation Quick Start Guide MIDAS A 021 slots 2 Diagram 9 8 Reassembling the detector chassis cartridge Midas Technical Handbook 9 6 9 3 Configuring the Detector jS After completion of the startup sequence press the A button for a few seconds to select the setup menu Enter the passcode if necessary Use the A or W buttons to select the setup 0 77 menu icon Press the to accept Use the A or W buttons to select the set alarms e ALm submenu Press v to accept The flashing gas ID code and the gas cylinder and alarms icon te will appear Use the A or W buttons to change the gas ID number to that of the target gas Press accept Continue to accept or change the rest of the alarm settings For further details on these settings refer to the Midas Operating Instructions part number MIDAS A 001 Press to update all changes UPat will be displayed Press X twice to return to normal operation After applying power verify that the sensor cartridge ID and gas ID are appropriate for the target gas See Appendix B for gas ID codes Refer to Section 7 2 2 for the procedure for setting the gas ID code The Midas gas detector automatically detects the pyrolyzer module and provides th
63. Midas Gas Detector Honeywell Operating Instructions TOC General Description Product Overview Default Configuration Installation Detector Start up General Operation Navigating Menus Routine Maintenance Pyrolyzer Module Options LonWorks Interface Troubleshooting Faults Reflex Internal Web Server Installation Topologies Ordering Information Specifications Calibration Bump Testing Modbus TCP Interface Gas Tables Warranty Honeywell Midas Gas Detector Table of Contents Contents 1 General Description 1 General Dec ea c dais du idea ascende dna 1 2 2 Product Overview 2 Product OVeIVIQW BETA ERES OR y acu Peer aeos 2 2 251 MainiCRasSIS sopas ssa och rca EE VERRE ec A ais lida 2 2 3 Default Configuration 3 Default Configuratio ee A Gap at iden acusa A 3 2 4 Installation A InstallatiOll c eerie ani st A 20 8202218 4 2 4 1 Mounting and Location of Detector eee 4 2 4 2 Mechanical Installation ori 4 4 4 3 Sample and Exhaust Tubing Calculations 4 7 a A 4 8 45 Local Detector a 4 8 4 6 Electrical Installation inicia 4 8
64. Signed 16 bit integer Alarm 1 threshold in floating point format 40014 A1T2 Scaling same as FCN1 and FCN2 40015 A2T1 Alarm 2 threshold in floating point format 40016 A2T2 A2T2 40016 2720 Scaling same as FCN1 FCN2 Alarm status equivalent to STTS bits 6 7 40017 ASI Bits 2 15 Zero Bits 0 1 Fault status integer equivalent to STTS bits 4 5 40018 FSI Bits 2 15 Zero 40019 to 40020 Reserved for future expansion currently zero Midas Technical Handbook A 4 2 Sending Commands to the Midas The Midas can accept eleven commands over Modbus as listed in Table 3 Itis possible to reset alarms flip relays and perform similar tasks over the network All commands are conveyed by writing 4 bytes to special registers as listed in table 2 This may be accomplished with command 06 write special register and command 16 write multiple registers For example resetting alarms is accomplished by writing 350 to holding register 40021 and writing 13862 to holding register 40022 The Midas Modbus implementation avoids the standard write coil command in order to increase resistance to malicious communication over the Internet Furthermore Honeywell Analytics strongly recommends that any Midas connected to the Internet be protected from unauthorized commands by a firewall The Modbus commands to manipulate the relays have no effect unless the relays are appropriately configured This can
65. T physical network is intended to connect computers to other computers through hubs For this reason a Midas cannot communicate directly with a PC using a standard cable This problem can be overcome by using a special cross over Ethernet cable or by using a hub or switch and two standard straight through wire connections Ethernet cables An example of a cross over cable is the Belkin A3X126 family An example of an Ethernet switch is the Linksys SD205 13 2 Internet Settings Communications requires knowledge of the IP address and netmask of both the Midas and the PC Unless the Midas is connected to a network with a DHCP Midas Technical Handbook Honeywell Midas Gas Detector server the addresses must be set manually To view or set the IP address of the Midas see Section 7 2 6 The procedure for setting the IP address of a PC is detailed in the following example using a PC loaded with Microsoft Windows XP and Internet Explorer version 5 0 or higher as illustrated by Diagram 13 1 In the usual case the netmask for both computers should be set to 255 255 255 0 The most significant three bytes of the IP address must be identical and the least significant byte must be unique For example if the IP address of the Midas was set to 169 254 60 47 the factory default then an appropriate IP address for the PC would be 169 254 60 42 13 2 Honeywell Midas Gas Detector Diagram 13 1 IP Address
66. TIVA uiae cu aie Rte detta d Ei x 7 14 8 Routine Maintenance 8 Houtine A a A 8 2 8 1 Sensor Cartridge Replacement eee 8 3 8 1 1 Sensor Cartridge Fitting Replacement eee 8 3 8 2 Pump Heplacemoel ii 8 4 8 3 Heassembling the Deteclor ics aua insazazs a a 8 5 8 4 Filter Replacement usen aca a M DUANE id dd 8 6 8 5 System Leak Check Procedure e 8 7 9 Pyrolyzer Module Options Pyrolyzar Modulo OpIONS 9 2 9 1 Fitting the Pyrolyzer Module UA di 9 4 9 2 Heassembling the Detector auasesins sacs sain nuin nacta n ACE E CE RUM RR MR aaa 9 6 9 3 Configuring the Detector A ii tA GEKZ EE UA aa 9 7 10 Optional LonWorks Interface Installation 10 Midas LonWorks Interface 10 2 10 1 Lon Works istallatoR cnica ii iii id 10 2 10 1 1 Fitting ine LOA WORKS MOS r A ains ias 10 2 10 1 2 Wiring the Midas tor LonWorks icc tiet ii 10 3 10 1 3 Configuring the Midas for LonWorksS 10 3 Midas Technical Handbook iii Honeywell Midas Gas Detector 10 2 LonWorks SOM WANG A AA 10 4 102A LonWork
67. Y down buttons to change between the settings Press to display the flashing alarm relays normally energized nE or normally de energized nd setting Use the A up or down buttons to change between the settings Press to update all the changes UPdt displayed and return to step 1 Press A up or V down to select another submenu Press X to return to set up calibration and test menu selection Press X again to return to normal operation When replacing a single gas sensor cartridge with the same type single gas sensor cartridge no change of gas confirmation is required When changing a multi gas sensor cartridge with the same type multi gas sensor cartridge the new sensor cartridge will assume the same previously set gas ID and will not request a change gas confirmation See Appendix B for cartridge information Honeywell Midas Gas Detector Press to display the flashing alarm 2 value 7 2 3 Set Faults FLt 1 12 13 Use the A up or down buttons to select the set faults submenu and press y to accept The flashing fault relay configuration 1FLt 2 FLt CmbF or nEtr is displayed Use the A up or down buttons to change the configuration See Table 7 3 for details of fault relay configurations Press to display the flashing fault output latching L or non latching nL setting is displayed Use the
68. ady and a count down from 10 is shown as the setpoint 1 value is read The display will show the flashing flow icon with the dot 3 4 ways up to tell the user to set the set point 2 flow 650 cc min Press A up or W down keys to adjust the reading on the external flow meter to the set point 2 target value NOTE The reading must be 50 cc min of target to be accepted Press v to confirm and the target value flashes Press up or down to enter the actual value read on the external flow meter NOTE Holding down the button will increase the increment speed Press to confirm and the icon goes steady and countdown from 10isshownasthesetpoint2 value is read If successful the display shows UPdt update and the flow calibration is complete Press A up or V down to select another submenu Press X to return to set up calibration and test menu selection 7 3 4 mA Calibration mA 4 20 This function permits the calibration of the 4 20 mA output using an external source such as an ammeter The purpose of this calibration is to assure the proper output voltage to activate external alarms relays If the Midas chassis becomes disassociated from its Midas Technical Handbook Honeywell Midas Gas Detector original mounting bracket this calibration procedure NOTE Holding down the button will increase must be followed to assure proper output voltages as the factor
69. as Complete Gas Detector 15 3 15 6 Accessories Spares A 15 4 16 Specifications 16 General O ER E A 16 2 17 Calibration and Bump Testing 17 Calibration and Bump Tostado rasan anke 17 2 A Modbus TCP Interface Midas Technical Handbook iv Honeywell Midas Gas Detector A o i dd A 2 A 1 Reading Status from tho Midas nsssnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn A 2 A 2 Sending Commands to the Midas A 5 Determining the MAC Address c oi 6 Gas Tables Warranty Statement C Warranty Statemelll iii ci i ii a i itd C 2 Sensor Cartridge Warranty iii tbe el i i cd i n iaia a C 3 Pyrolyzer Waptanty iittala il ii A SAA il nm C 3 Midas Technical Handbook Honeywell Midas Gas Detector 1 General Description Midas Technical Handbook 1 1 Honeywell Midas Gas Detector 1 General Description The Midas gas detector is an extractive gas sampling system that draws a sample locally or from a remote point to a sensor cartridge that is located inside the detector s chassis A wide range of Asphyxiant Toxic Flammable Pyrophoric Corrosive and Oxidizer including Oxygen gas sensor cartridges are available
70. as Detector first menu f SET set up icon will show on the display The CAL calibration or amp tESt test menu can also be selected using the A up or down buttons Press the accept button to enter the selected menu or the X cancel button to return to normal operation mode 6 3 1 Set up Menu Overview gt The set up menu allows changes to be made to the detector alarm fault calibration interval date time and digital address settings The menu is navigated using the A up and W down buttons to select the required submenu and then using accept button to enter that submenu The A up and down buttons are used to make changes to the selected setting and are confirmed using the accept button The X cancel button can be used to exit the submenu and allow selection of a different submenu or can be pressed again to exit to the main set up calibration and test menu Pressing the X cancel button again returns the detector to normal operating mode Note settings in a submenu are accepted when the Y accept button is pressed after the last submenu setting This saves the changes and is indicated by displaying UPdt on the LCD If however the X cancel button is pressed at any time before the changes are accepted this will cause any changes to be cancelled in that particular submenu Table 6 3 shows an overview of the set up subm
71. as detector is factory configured as below Table 3 1 Midas default configuration Current source with 1 0 mA Fault 2 0 mA Inhibit 3 0 mA Maintenance Fault 4 0 to 20 0 mA Gas reading normal operation 21 0 mA Over range Toxic Gas Flammable Gas Oxygen Full Scale FS Typically 4 x Threshold Limit 100 Lower Explosive Limit 25 Volume v v Value TLV LEL Lowest Alarm Level LAL Typically 1 2 TLV 10 LEL 5 viv LDL The LDL is the minimum level that is reliably distinguishable from zero 1 2 TLV 10 LEL 23 5 v v Rising Alarm 1 Relay 1 Normally de energized energizes on alarm Contact Normally Open NO closes on alarm TLV 20 LEL 19 5 v v Falling Alarm 2 2 Normally de energized energizes alarm Contact Normally Open NO closes on alarm Fault Normally energized de energizes on fault Relay 3 Contact Normally Open NO Instrument Fault Only Latchin Latching Alarm and fault relays DO NOT automatically reset when reading falls below alarm g thresholds Relays MUST be manually reset Pass code No pass code set IP Address 169 254 60 47 subnet mask 255 255 255 0 Midas detectors are not ETL approved for monitoring in or sampling from classified areas above 25 LEL See Table 7 3 for more information on Relay Configuration Midas Technical Handbook 3 2 Honeywell Midas Gas Detector 4 Insta
72. ation Flow Calibration 4 20 mA Calibration Test Done i Internet Protected Mode Off far 895 The time and date can be configured via this web page In addition the Midas can have its time synchronized automatically with the web browsing computer s own clock by selecting the Synchronize with Computer button this useful feature will ensure any time changes are automated on a site wide basis Midas Technical Handbook 13 15 Honeywell Midas Gas Detector Diagram 13 15 Zero Calibration di Favorites Midas Unit M12340338 Honeywell Analytics e Y 07 mp v Pager Safetyv Toos Or General e Status e Event History Calibration Certificate e Contact Info Help Configuration General Gas Alarms Faults e Network e Security Time Date Calibration Saligan e Span Calibration e Flow Calibration e 4 20 mA Calibration Test Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 2 12 build 5 IP Address 169 254 60 47 m Zero Gas Calibration A Zero Calibration Concentration Reading 0 5 LEL Save New Values Instructions Press Start to enter zero gas calibration mode Note Unit must be in normal monitoring mode to enter zero gas calibration mode Done A In
73. ation and Bump Testing Midas Technical Handbook 17 1 17 Calibration and Bump Testing All Midas sensor cartridges are pre calibrated by Honeywell Analytics using traceable gas standards and approved calibration methods to a proven ISO 9000 quality controlled procedure The Midas sensor cartridge design is very robust and resistant to long term drift in fact in a normal operating environment it is possible to extend the calibration interval with Midas up to 24 months subject to local requirements concerning calibrations This design feature is another element that supports Midas as a long term cost effective gas detection solution Honeywell Analytics recommends frequent bump testing to confirm performance Note It is the sole responsibility of each user to determine their own calibration and bump test schedule based on their own safety assessments and understanding of local requirements Just prior to commissioning each Midas unit should be zero calibrated to ensure accuracy It is recommended that the unit be powered with the cartridge installed for at least 30 minutes prior to conducting a zero calibration A second zero calibration may be required after a 24 hour period which is dependent on the site conditions If the ambient condition in the area the detector is monitoring experiences a long term change it is necessary to perform a zero calibration to allow the unit to adjust to the new conditions Note When pe
74. ay Honeywell Midas Gas Detector Table 6 4 Calibration menu overview Screen 1 Screen 2 Screen 3 6 8 Zero OCAL 0 Icon flashes alerting user to prepare to Icon flashes display shows O indicating flow zero will set 4 mA is displayed indicating analog output should be 4 mA Unit is zeroing Select if humidified HUm or dry drY calibration gas Unit counts down from 10 to 0 and sets flow zero Display shows 1st set point target flow rate Use A or V to make reading on external flow meter 50cc min of set point 1 Adjust until analog output is 4mA Verify output with meter PASS is displayed if OK fault code displayed if not Adjust value to display span gas concentration used Use or to change the flashing display to the actual reading from the external flow meter 20 mA is displayed indicating analog output should be 20 mA Display steadies and displays span gas reading dots indicate progress PASS is displayed OK fault code displays if not Unit counts down from 10 to O and sets 1st set point Icon flashes and displays 2nd set point target Repeat process to set Adjust until analog output Verify output with meter 6 3 3 Test Menu Overview amp tESt The test menu is used to test the detector gas reading Display Honeywell Midas Gas Detector Table 6 5 Test Submenu Screen
75. be accomplished via the front SEU FLt menu or by the Fault Configuration web page By default remote control is disabled Table A2 User Writable Modbus Holding Registers Ref Addr Reg Name 40021 CMD1 user command register 1 40022 CMD2 user command register 2 Midas Technical Handbook Honeywell Midas Gas Detector Table A3 Effect of Writing to Modbus Holding Registers ets e 40021 40022 Determining the MAC Address Most Ethernet network administration is accomplished by configuring 32 bit internet protocol IP addresses However every Ethernet device also contains a media access controller MAC address This low level address is 48 bits long fixed and unique With most computer equipment knowledge of the MAC address is not necessary The mapping between IP addresses and MAC addresses is handled transparently by the address resolution protocol or ARP The Midas and personal computers support ARP However certain PLCs do not support ARP This section explains how to determine the MAC address of a Midas gas detector which is needed by these PLCs This requires a computer with an Ethernet connection to the Midas This procedure uses Microsoft Windows XP although Linux and other Microsoft operating systems will also work 1 Establish Ethernet communications between the PC and the Midas Both must be on the same subnet 2 Open a command prompt 3 Execute the ping command as shown in Diag
76. be reported as fault number 100 The state byte of SNVT switch has the value 1 if any fault exists Otherwise it takes the value O Note that the LonMark standard calls for the value field 10 5 to be divided by two for display Thus the raw value is twice the fault number For example when a flow failure Fault F81 exists the raw value of nvoFaultS will be 0xA2 0x01 This is displayed by LonMark compatible tools as 81 0 1 Alarm Thresholds The variables nvoAlmThres1 and nvoAlmThres2 reports the configuration of the alarm setpoints The scaling and format of the data is identical to that used with nvoConc These are read only data it is not possible to change the alarm settings over LonWorks nvoGasSelection This NVO facilitates determining over the network what cartridge is installed and which calibration is selected The most significant byte of this is equal to the sensor cartridge ID number The least significant byte of this is equal to the gas ID number Values for both are listed in Appendix B nvoCellLife This reports the time remaining until the F43 Cartridge Expired is issued Fault m12 Cartridge Expires Soon will generally be issued 30 days before F43 However this variable provides no advance warning of fault m11 User Cal Expired nvoMonState The bits in this variable are shown graphically in Table 10 2 The least significant 4 bits form a monitoring mode integer MMI
77. bing Length Up to 30 m 100 feet with FEP tubing Ambient Point In line air filter required Exhaust Length Up to 30 m 100 feet Operating Temperature Unit with sensor cartridge Unit with sensor cartridge and Pyrolyzer 0 C to 40 C 32 F to 104 F 0 C to 30 C 32 F to 86 F Tubing Requirement Sample 6 35 mm OD 1 4 x 3 18 mm 1 8 30 100 feet maximum dependent on gas type Exhaust 6 35 mm 1 4 OD x 4 76 mm 3 16 Polypropylene 30 m 100 feet maximum Wiring Requirement 4 20mA 2 wire 14 AWG maximum Digital CAT5 cable or equivalent RJ45 connector Gas Concentration Display amp Interface 4 digit alphanumeric display with separate units flow rate bar graph and other icon Transmitter Unit Instrument driven indicators 4 button interface keypad Remote Option for PC PDA Internet browser access via Ethernet Warranty 1 year Sensor cartridge 1 year standard 2 years extended warranty Expected Pyrolyzer Life Standard and High Temp year life 12 month warranty Expected lifetime of pump 2 years 12 month warranty Mounting Case Material Wall mounted using pre drilled holes on chassis Options for DIN rail or vertical bracket mounting Cover Painted steel Chassis Mounting Bracket Zinc plated steel Midas Technical Handbook 16 3 Honeywell Midas Gas Detector 17 Calibr
78. by date Midas sensor cartridges with part numbers beginning in MIDAS E carry a 24 month 2 year warranty from switch on installation or up to 30 months from the date of shipment from Honeywell Analytics whichever is less provided this takes place before the Activate Before date on the cartridge Pro rata after Activate Before install by date 1 The oxygen sensor cartridge is guaranteed to operate satisfactorily for the period described above and will be replaced at no charge within that period only if it will not provide a correct reading after calibration by Authorized Service personnel Physical or chemical damage resulting from exposure to improper elements is not covered 2 The combustible LEL sensor cartridge is guaranteed to operate satisfactorily for the period described above If it will not provide a correct reading after calibration by Authorized Service personnel it will be replaced at no charge within that period This guarantee is void if it has been contaminated by some unusual substance including but not limited to water and or other liquids oily compounds corrosives silicones lead vapors extremely high concentrations of combustible gases and various particulates which may inhibit gas flow to the sensor cartridge element Midas Technical Handbook Honeywell Midas Gas Detector 3 The toxic sensor cartridges are guaranteed to operate satisfactorily for the period described above They wil
79. conds after The Send to Print will generate a printed version of the event log by page or the complete listing see Diagram 13 5 The Details button allows access to a graphical display of gas concentration versus time elapsed see Diagram 13 6 13 5 Honeywell Midas Gas Detector Diagram 13 4 Event Log Printing Dialog hitp 1 158 100 41 253 Midas Events Select page to XO wait up to 1 minute for the page note Pop up blocker can interfere with the event history generation oa Diagram 13 5 Event Log Output Midas Events Windows Internet Explorer ZIEL se D http 169 254 60 47 MidasEventsPrint htm Serial Number 12340338 Name HA M12340338 Location MIDAS Gas Detector Cartridge Serial Number 12K50491 Address 169 254 60 47 Event History Print Close Window No Timestarp Type Descriptim Ges Conc Deta Page 1 1 Wed Sep 26 20 40 58 2012 Hor The cartridge temperature H2 40 0 2 Wed Sep 26 20 38 35 2012 COOL COOL Ihe certridge temperature H2 38 9 3 Wed Sep 26 20 38 07 2012 LOAD SAME CELL Load Data 12K50491 H2 4 Wed Sep 26 20 26 43 2012 HOT The cartridge temperature H2 41 4 5 Wed Sep 26 20 26 13 2012 LOAD SAME CELL Load Data 12K50491 H2 6 Wed Sep 26 20 12 44 2012 HOT The cartridge temperature H2 40 0 7 Wed Sep 26 19 53 28 2012 SETUP SET Setting up
80. cs for repair Before returning materials for repair or replacement the Customer must obtain a Service Event Number SE by contacting Honeywell Analytics Service in advance include a detailed report stating the nature of the defect and ship the equipment prepaid to Honeywell Analytics factory If no detail report is included Honeywell Analytics reserves the right to charge an investigative fee prices available upon request before any repair or replacement is performed Returned goods must detail the Service Event Number SE clearly on the package Service in the field or at the customer s premises is not covered under these warranty terms Time and travel expenses for on site warranty services will be charged at Honeywell Analytics normal billing rates Midas Technical Handbook Honeywell Midas Gas Detector Contact your Honeywell Analytics representative for information on available Service Contracts Honeywell Analytics shall not be liable for any loss or damage whatsoever or howsoever occasioned which may be a direct or indirect result of the use or operation of the Contract Goods by the Buyer or any Party This warranty covers the gas detector and parts sold to the Buyer only by authorized distributors dealers and representatives as appointed by Honeywell Analytics This warranty does not cover defects attributable to improper installation repair by an unauthorized person or the use of unauthorized accessories parts o
81. ct mode nEtr f Press the X key repeatedly to exit the setup menu The various relay configuration options are listed in Table 10 5 10 7 Table 10 5 Fault Relay Configuration options LCD Source of Signal for Relays escription Symbol P Relay 1 Relay2 Relay3 1FLt Instrument fault only Inst Fault Separate fault relays Any Alarm Combined fault relay Any Fault nviRelay1 nviRelay2 nviRelay3 Once the relays are configured for network remote mode they will respond to updates to the three associated NVIs The values ST_LOW ST_MED ST_HIGH and ST_ON will cause the relays to energize The value ST_OFF will cause the relays to de energize The configuration settings for normally energized and normally de energized have no effect if the relays are in network remote mode However the relays can still be configured for normally open or normally closed contacts by moving the jumpers on the Midas backplane PCB A Caution Several failure modes will cause the relays to de energize These modes include power failures and CPU lockups Furthermore power must be removed from the Midas for certain maintenance procedures External equipment should be designed to prevent creation of expensive or dangerous conditions when the relays de energize For applications requiring a highly reliable digital output Honeywell Analytics recommends purchasing a dedicated DO device nviReset This network variab
82. d Interface Card 05701 A 0326 05701 A 0327 05701 A 0328 05701 A 0329 05701 A 0330 Relay Field Interface Card Shielded Cable System 57 5701 Control Card ense Resistor Isolated Loop Supply 40 mA max Transmitter Supply 4 12 RS 33 31 37 25 23 2115 D 15 DOE 5701 Sensor Drive Module Link Positions o o 1 12 o Lk10 o o Lk7 o O Lk5 Lk Lk2 Honeywell Midas Gas Detector Diagram 4 12 Midas to 5701 3 Wire Sourcing Connection O Ja supply INTEXT Analog Current Loop 4 20 mA 5 E o z z o o 24 Relay1 Lo Mol elay3 Bl Midas Technical Handbook Sieger System 57 Relay Field Interface Card 05701 A 0326 05701 A 0327 05701 A 0328 05701 A 0329 05701 A 0330 Shielded Cable E Sim o 1 11 System 57 Ede Six Simplified Internal Schematic Relay Field 5701 Control Card INT EXT Interface Card o O Lk9 o O Lks Transmitter Supply PEA Controlled Internal Current Source RS Power Loads 9 om Sense EXT Resistor e a 170 Lk2 O LK LIT A 81
83. d value Press A up or W down to set the second value Press v to enter and repeat for the third and forth values in the passcode To confirm the pass code re enter it again using the same procedure The new pass code will be saved after the last entry if the two entered passcodes are the same Note Pass codes can be set between 0001 and 9999 Setting the pass code to 0000 will switch off the pass code If a pass code is forgotten contact your local Honeywell Analytics service department In the event that a pass code is forgotten by the user Honeywell Analytics is not responsible for any costs associated with the recovery of the passcode nor for any inconvenience incurred while the user is unable to access protected settings It is strongly advised that the user record all pass codes with the instrument serial number in a secure and separate location to the Midas unit Delays in recovering the lost passcodes may be experienced and are not the responsibility of Honeywell Analytics 7 2 8 Set LCD Backlight mode 1 2 5 6 Select the set LCD mode LCD submenu and press to accept The flashing LCD Backlight mode configuration bm m or bm c is displayed Use the A up or down buttons to change the configuration Press v to set LCD backlight mode UPdt displayed Press X to return to set up calibration and test menu selection Press X again to return to
84. das Adjustable L Bracket Mount Top Access Tubing Connector M DAS A 032 MIDAS A 031 Midas Technical Handbook Honeywell Midas Gas Detector 4 3 Sample and Exhaust Tubing Calculations Note The following tables show the flow rate tubing length transport time and maximum pressure and Honeywell Analytics recommends the use of Teflon FEP Fluorinated Ethylene Polymer tubing to assure proper sample transport vacuum at the inlet and exhaust points Tubing The properties of Teflon FEP make it the lengths vary among gases See Appendix B for best choice for transporting sample toxic recommended lengths gases to instruments when compared with the properties of other similar tubing materials Table 4 1 Inlet sample specifications ET If the pressure vacuum on the inlet exhaust lines Inlet Sample Specifications does not meet the recommended values in Tables Maximum 4 1 and 4 2 the following chart describes potential Tubing Length m ft 30 100 20 66 10 33 0 fault conditions that may be brought on by the xternal influen thus resulting in an F81 Flow Transport Time sec ID 1 8 28 19 10 1 9 8 9 Fault Transport Time sec ID 3 16 63 43 23 1 Sample Point Vacuum 254 om H O 10 in H O Maximum External Flow Fluctuation Fault 81 Explanation Negative pressure 2 Low 1 Midas
85. e A up or down buttons to change the day setting between 1 and 31 Press to display the flashing hours of current time Use the A up or down buttons to change the hours setting between 00 and 23 Press to display the flashing minutes of current time Use the A up or down buttons to change the minutes setting between 00 and 59 Press to update the changes displayed and return to step 1 Press A up or Y down to select another submenu 16 Press X to return to set up calibration and test menu selection 17 Press X again to return to normal operation 7 2 6 Set Address EdnEt Default IP address is 169 254 60 47 subnet mask 255 255 255 0 when using the LonWorks Interface Module the default IP address must be used Select the set address submenu and press to accept Press up or V down to select full web access WA Y or read only WA n and press Y to accept A flashing n or Y is displayed depending on if auto address detection is on AU Y AU n If automatic address detection AU Y is selected then the detector will automatically appoint a valid IP address when it reboots The Midas will display UPdt and request a reboot after this setting is accepted If manualaddress setting AU n is selected press Vtodisplaytheflashingfirstpartofthe IP address The dot
86. e pass code if set Use the A up or W down buttons to select the set up menu amp icon and press the accept button 7 2 2 Set Alarms eALm 1 Use the A up or Y down buttons to select the set alarms SALm submenu and press to accept 2 Theflashing gas id code is displayed along with the gas cylinder and alarms icon e 3 Use the A up or W down buttons to change the gas ID number only applicable on multi gas sensor cartridges See Appendix B 4 Press to accept 5 Theflashing level 1 L1 alarm type is displayed U rising or d falling 6 Use the A up or Y down buttons to change the alarm type 7 The flashing alarm 1 value is displayed along with the icon A 8 Use the A up or W down buttons to change the value Press to accept 10 The flashing level 2 L2 alarm type is displayed U rising or d falling 11 Use the A up or down buttons to change the alarm type 12 13 14 15 16 17 18 18 20 21 22 23 Note along with the icon a Use the A up or down buttons to change the A2 value Press to display the flashing alarm on time delay seconds Use the A up or down buttons to change the alarm on time delay seconds Press to display the flashing alarm output latching L or non latching nL setting Use the A up or
87. e 5704 card The terminal numbers for all four channels are as follows MIDAS Function 5704 Channel 2 Terminal 5704 Channel 3 Terminal 5704 Channel 4 Terminal Relay Field System 57 Interface Card 5704 Control Card Sense Resistor Honeywell Midas Gas Detector Diagram 4 16 Midas to Touchpointl 4 Wire Connection NO fr 5 E oleo leas JEl Se Loo 58 NO n 868 lt EXT INT supply 8 J5 24 V 2 00000000 z z 68 2 3 2 T DJU 1 5 E 2 e RJ 45 24 VDC Power Supply MIDAS External Simplified Internal Schematic Controlled Current Source Power Customer Provided touchpoint1 Power Supply 1 Simplified Internal Schematic Midas Technical Handbook 4 17 Honeywell Midas Gas Detector Diagram 4 17 Midas to Touchpoint1 3 Wire Sourcing Connection J4 supply O EXT NC N ug Es NC cy EF 29g NO ID 9 EN No EXT INT supply E 7 Es E O 3 5 O E 3 I 3 O 2 10 AS Er Ele SS SE Gs wav 2 OT 1 7 ES Y IN E 58 AS E E Shielded Cable ES sw OFF RJ 45 MIDAS Simplified Internal Schematic Controlled
88. e in applications that are oxygen deficient lt 15 O Calibrations should always be carried out in CO balanced with air Finishing Wait for the gas reading to return to normal levels This may take some time especially if concentrations above the recommended levels have been used or if the test gas has been applied for an extended period of time Ensure that any latched faults or alarms that have been generated by the testing have been cleared Make sure that the gas detection system is fully restored to its normal operating state and that any control system overrides used during the testing have been removed The alarms generated by the testing will have created entries in the transmitter s history log Troubleshooting If the test does not produce a satisfactory result check the following points 1 Check the gas cylinder concentration and type are correct 2 Check the expiration date of the cylinder 3 Check that there is sufficient gas left in the Midas Technical Handbook 17 4 Honeywell Midas Gas Detector cylinder Check that there are no leaks on the test system Make sure that the tubing length is as short as possible and that there are no blockages Make sure that the transmitter is not displaying a fault before the test is started Honeywell Midas Gas Detector A Modbus TCP Interface Midas Technical Handbook A 1 A Modbus TCP Interface The Midas gas detector can report concentrat
89. e necessary power and signaling for the device Midas Technical Handbook Honeywell Midas Gas Detector 9 4 Replacing the Pyrolyzer Heater Block WARNING The Pyrolyzer module becomes A extremely hot during operation Allow it to cool before beginning this procedure AVERTISSEMENT Le module pyrolyzer A devient extr mement chaud l usage Veuillez allou une p riode de refroidissement avant de d buter cette proc dure Loosen the thumbscrew on the top of the unit as shown in Diagram 9 10 Diagram 9 10 Loosening the thumbscrew N thumbscrew 2 Slide the front cover out of the C enclosure see Diagram 9 11 Diagram 9 11 Removing the front cover Honeywell Midas Gas Detector 3 Disconnect the Viton tube from the upper micro tube port Discard the Viton tube Diagram 9 12 Replacement Viton tubing is supplied with the new heater block 4 Remove the P clip and lock nut 5 Disconnect the thermocouple and heater wires from their PCB connectors 6 Remove the bolt from the manifold assembly Diagram 9 12 Disconnecting the heater block Viton tube upper microtube port quartz tube port manifold bolt Viton tube P clip and lock nut heater wire connector thermocouple connector 8 Remove the heater block assembly by first lifting it up and then sliding it out of the keyhole connector in the C enclosure Diagram 9 14
90. each time the user attempts to access a restricted area of the Midas menu either directly via the LCD keypad or via the webpage they will be prompted to enter the supervisor code Note The passcode should be recorded in a separate database along with the serial number for each Midas unit Should the passcode be lost or forgotten Honeywell Analytics is not responsible for any lost time or inconvenience To recover lost passcodes please contact your Honeywell Analytics Service Representative Midas Technical Handbook 13 14 Honeywell Midas Gas Detector Diagram 13 14 Time and Date sing File Edit View Fa di Favorites Midas Unit 2M12340338 Honeywell Analytics d Pager Safetyw Toos Or Name 12340338 Honeywell Serial Number 1112340338 Cartridge Serial Number 12K50491 Location MIDAS Gas Detector Midas Gas Detector pr IP Address 169 254 60 47 General Time amp Date Configuration e Status e Event History Setup Calibration Certificate Time does not automatically update with regional daylight savings changes e Contact Info Help Time is entered in 24 hour format Year 2012 Configuration E Month Day 126 e General Hour Minute 21 18 Gas Alarms e Faults Change Reset Synchronize with Computer e Network e Security e Tine Calibration e Zero Calibration Span Calibr
91. ed_tm nvoFaultD SNVT_lev_disc nvoFaultS SNVT_switch nvoGasSelection SNVT_count nvoMonState SNVT state nvoNstat SNVT_state d a Node Object Functional Block mvi nviRequest 2 nvoStatus SNVT obj request nV SNVT obj status Mandatory Implementation S pecific TVS nvoChkSum SNVT count a Virtual Function Block 22 nciMaxSendT Sp SNVT_elapsed_tm nciMinSendT cp24 SNVT elapsed tm 10 2 2 Network Variable Behaviors The behaviors of the network variables are as detailed below nvoConc This reports the concentration of the target toxic or flammable gas in the SNVT ppm f data type The concentration will be scaled in ppm when a toxic gas cartridge is installed For example a 100 ppb B2H6 concentration will be reported as 0 1 However when an O2 cartridge is installed this will be scaled in volume percent For example normal air will be reported as 20 9 not 209000 0 Furthermore concentration will be reported as a percentage of the lower explosive limit LEL for flammable gas cartridges This means that CH4 at a concentration of 50 LEL will be reported as 50 0 not as 25000 0 ppm Alarm Outputs The alarm status of the Midas is reported in three network variable outputs NVOs for maximum compatibility The values of nvoAlmL nvoAlm2 and nvoAlmS under various conditions are listed in Table 1 The variable nvoAlm2 is provided to facilitate discrimination between alarm1 and alarm2 by 3rd party actuators which trea
92. enus and how they are navigated For a detailed step by step instruction of how to change the detector settings using the set up menu refer to Section 7 2 6 6 Alarms Change gas ID for multi gas sensors Set alarm 1 direction U rising d falling Set alarm 1 threshold Honeywell Midas Gas Detector Table 6 3 Set up menu overview Display Screen 1 Screen Screen Screen 4 Screens Screen Screen 7 Screen 8 Screen 9 Screen 1d Set alarm 2 direction U rising d falling threshold Set alarm 2 Set alarm delay time Set alarm latching Set alarm relays normally energized de energized Set fault relay config 1FLt 2FLt CmbF or nEtr Set fault latching non latching Set fault relays normally energized de energized Set fault m12 occurrence freq 1m12 once Wm 12 wkly 0m12 never Calibration CAL Set calibration interval MIDAS S 0 365 days MIDAS E 0 730 days 0 off Date Time tlmE Set date format dd mm or mm dd Set year yyyy 2003 2030 Set month mm 01 12 Set hour Set minute mm 00 59 Address nEt Set Web Access WA Y full access WA n read only Set Auto or Manual address AU Y DHCP AU n man Manual IP address byte 1 Manual IP address byte 2 Manual IP address byte 3 Manual IP address byte 4 Manual Subnet mask byte 1 Manual Subnet mask byte
93. eral requirements of the Test company s BS EN 9001 2000 approval e Bump Test kept for all sensor cartridge calibrations and copies are available Alarm Fault Simulation 129488 Internet Protected Mode Off fa Q y An electronic copy of the original sensor calibration certificate can be accessed from this section and printed for audit purposes Midas Technical Handbook 13 8 Honeywell Midas Gas Detector Diagram 13 8 Contact Information Help Edit Vie Tools Help dx Favorites Midas Unit M12340338 Honeywell Analytics CU v Pager Safetyv Tool v Or 12340338 Honeywell Serial Number 12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 212 buid 5 IP Address 169 254 60 47 A General Contact Information 3 e Status Current contact information can be found at the Honeywell Analytics web site e Event History Please visit us online at http www honeywellanalytics conv e Calibration Certificate Requires connection to the internet Gantact Into Help E Fault Information Configuration Number Name Data Field Condition Recovery General m9 Simulated m Fault n a User enters simulation mode Reset simulated fault La e Gas Alarms m10 Over Range Peak Large concentrati
94. et gas or the recommended bump test gas Zero calibration is a recommended procedure that should be performed periodically to improve the performance of the sensor This is particularly important when the sensor is operating outside of normal environmental conditions 20 C 50 rH The tables in Appendix B indicate the recommended calibration or bump test gas for the Midas sensor cartridges Consult with your Honeywell Analytics Service Representative for approved methods and materials before commencing calibrations and bump tests See Tech Note 1998 0219 Protocol for Testing Toxic Gas Detectors for additional information Bump the Testing Midas Gas Detector A bump test is not intended to be an accurate calibration but is used as a confidence check to ensure that the gas detection system is functional Since some of the target gases are difficult to handle bump testing often Midas Technical Handbook Honeywell Midas Gas Detector makes use of cross sensitivities so that more convenient gases can be used In bump test mode the Modbus TCP outputs are not inhibited Only the 4 20 mA and alarm outputs are inhibited The bump gas test is a functional check only Consult local guidelines for recommended best practices Bump test concentrations are calculated to generate a minimum first alarm level response Equipment See Tech Note 1998 0219 Protocol for Testing Toxic Gas Detectors for additional information The following
95. evice Follow the on screen sequence of messages to perform the 4 20mA calibration correctly Midas Technical Handbook 13 19 Honeywell Midas Gas Detector Diagram 13 19 Bump Test B x Eens ETE HR m Edit Vie avorites Tools iy Favorites Midas Unit M12340338 Honeywell Analytics m y d Pager Safetyw Tool Qv Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Address 169 254 60 47 Configuration e Bump Test e General ora e Faults CURE The inhibit icon is also displayed indicating that e Security no alarm outputs will be generated during this TimelDate process Apply the bump test gas and the display will show the measured gas concentration Calibration Note Unit must be in normal monitoring mode e Zero Calibration Gas Concentration 0 0 LEL Span Calibration Flow 488 comin e Flow Calibration E 4 20 Calibration Enter Test Mode Test BUM est e Alarm Fault Simulation E e Inhibit e 4 20 mA Test Authorized Users 5 m Y Internet Protected Mode Off Ar RQS y A simple gas checking test or Bump Test can be applied using the web page interface The bump test confirms that the sensor can still respond to an applied concentration of gas but is not a formal calibration See Appendix B for a
96. eywell Analytics Service Representative for further details on calibration services Testing should be performed at the end of the sample tube or at the detector with a short length of tubing Applying gas with a short length less than 5 feet 1 5 meters of clean FEP tubing will give optimal results for confirming the accuracy and response time of the cartridge Applying gas at the end of the installed sample line will test the full system including the whole length of tubing This will verify the integrity of the tubing Sample line integrity can also be checked by performing a leak check see section 8 5 Note that there will be additional transport time due to the tubing length and conditioning the gas wet surfaces see table 4 1 17 2 Bump tests are also used as an approximate means to present a controlled gas release to the sensor cartridge in order to verify that the transmitter does respond accordingly Bump testing is popular as typical experiences show that a smaller list of easier to handle gases can be used to provide functional tests on a wider range of gas types In the absence of a formal calibration policy from the end user Honeywell Analytics would recommend a minimum semi annual schedule of at least one bump test per sensor with the appropriate test gas see details below Bump testing may reduce sensor cartridge lifetime and the accuracy of the calibration if applied incorrectly or too frequently Use only the targ
97. eywell com Please Note While every effort has been made to ensure accuracy in this publication no responsibility can be accepted for errors or omissions Data may change as well as legislation and you are strongly advised to obtain copies of the most recently issued regulations standards and guidelines This publication is not intended to form the basis of a contract Honeywell MIDAS A 001 Revision 14 January 2013 2013 Honeywell Analytics
98. g or increase timeout value F39 Simulated fault User has generated a simulated fault Reset simulated fault F40 Sensor overdosed Sensor has been exposed to high gas Replace cartridge concentrations for long periods F41 Baseline fault Sensor baseline has drifted Check for background gas concentration temperature or humidity fluctuations Perform zero calibration Replace cartridge F42 Calibration expired Too long since last calibration Replace or calibrate the cartridge F43 Cartridge expired Cartridge is too old Replace cartridge F44 Cell failure Cartridge has failed Reflex check Replace cartridge F45 Stabilization timeout Cartridge has failed to stabilize If temperature or humidity shocks exist precondition the cartridge Check for background gas concentration Replace cartridge F46 Cartridge analog failure a pela Failure or gas concentration greater than Replace cartridge ull scale F47 Cartridge memory invalid Checksum error Replace cartridge F48 Cartridge absent No communications Reseat cartridge Replace cartridge F49 Cartridge wrong type Cartridge type found to be incorrect after boot up Replace cartridge or press y accept if correct F80 Temperature limits exceeded Temperature is outside limits Check installation environment F81 Flow fail Flow 70 of nominal for 15 seconds Check filters Check for kinked tubing Replace pump Midas Technical Handbook Honeywell Mida
99. gen fluoride HF gas by means of pyrolysis at a high temperature which is optimized for each gas family The residual HF is then measured by the appropriate sensor cartridge and the concentration is calculated from this result This concentration is then displayed in actual ppm on the Midas LCD display The standard Midas pyrolyzer unit P N MIDAS T OP3 detects nitrogen triflouride NF 08 03 NF pyrolyzer units require a Freon end of line filter P N 1830 0027 The filter is filled with charcoal to Honeywell Midas Gas Detector Diagram 9 1 illustrates the various pyrolyzer configurations This table shows that gases which can be detected by the Midas Pyrolyzer module Detectable Gases Cartridge Part No MIDAS E XHF MIDAS S XHF MIDAS E XCF MIDAS S XCF remove Freon and other similar compounds from the Note that the pyrolyzer module is ideally suited for leak detection rather than analytical detection of very low trace amounts of PFC compounds sample gas before it is cracked in the pyrolyzer Diagram 9 1 Midas gas detector with Pyrolyzer modules MIDAS T OP3 left MIDAS T OOP center MIDAS T HTP right Ventilated Top Cover MIDAS A 039 Midas Technical Handbook 9 2 0 pp we Y 7 YY um Jif Mi 7 VIA Y pul SS j 77 y Midas Pyrolyzers
100. he X cancel button for 2 seconds If the fault conditions persist the fault will be reappear quickly If the fault operation is set to non latching the display will automatically clear when the fault condition is cleared 6 2 Review Mode m The detector settings can be reviewed safely without the possibility to make changes by using review mode To select review mode press the A up or Y down button once The review mode icon GQ will show on the display and the first review mode menu icon is displayed 6 2 1 Review Mode Menu Overview n The menu is simply navigated by using the A up and W down buttons to select the required menu and then using the accept button to enter that submenu Midas Technical Handbook Honeywell Midas Gas Detector scroll through to view the settings The cancel button can be used to exit the submenu and allow selection of a different submenu or can be pressed again to exit to normal operating mode When in review mode the unit will automatically return to the main normal operation status display if either an alarm level is exceeded or no button is pressed for 60 seconds Table 6 2 shows an overview of the different review menus and how they are navigated For a detailed step by step instruction of how to review the detector setting in review mode refer to Section 7 1 6 4 as e T m mm o Software SW Transmitter s
101. idas Technical Handbook Select the set calibration interval ficar submenu and press v to accept The flashing display shows the number of days interval after a calibration that a calibration due maintenance fault will be displayed Use the A up or W down buttons to change the number of days If the calibration interval is set below 001 then OFF will be displayed and no user calibration interval will be activated and no reminders displayed Press to update the change UPdt displayed and return to step 1 Press A up or V down to select another 6 Ye Honeywell Midas Gas Detector submenu Press X to return to set up calibration and test menu selection Press X again to return to normal operation 7 2 5 Set Date and Time timE Il 2 10 11 12 13 14 7 7 Select the set date and time timE submenu and press to accept The flashing display will show the current date format mm dd or dd mm Use the A up or down buttons to change the date format Press to display the flashing current year setting Use the A up or down buttons to change the year setting between 2003 and 2030 Press y to display the flashing current month setting Use the A up or down buttons to change the month setting between 1 and 12 Press to display the flashing current day setting Use th
102. ion When refitting the cover to the Midas unit use caution to prevent damage to the RFI shielding tabs attached to the chassis Midas Technical Handbook 4 24 Honeywell Midas Gas Detector Honeywell Midas Gas Detector 5 Detector Start Up Procedures Midas Technical Handbook 5 1 5 Detector Start Up Procedures A WARNING Prior to carrying out any work ensure local and site procedures are followed Ensure that the associated control panel is inhibited so as to prevent false alarms The following procedure should be followed carefully and only performed by suitably trained personnel 1 Ensure the detector is wired correctly according to Sections 4 6 and 4 7 2 Ensure that the correct sensor cartridge is fitted If the cartridge has not been stored at room temperature allow one hour for equilibration 3 Ensure the on off switch on the mounting bracket assembly is in the on position 4 Apply power to the system 5 After the start up routine the detector will display normal operating mode as shown in Section 6 6 Perform a leak test as shown in Section 8 5 to ensure all connections are secure If using a multi gas sensor cartridge refer to Section 7 2 2 to ensure the correct gas ID code is selected 7 Allow the detector to stabilize until the WArm message is no longer displayed The maximum warm up time is listed in Appendix B Warm up times are typically much faster 8 Ifthis is a firs
103. ion information in a variety of formats including relay contact closure an analog 4 20 mA loop Ethernet IP HTML web pages and via the Modbus TCP networking protocol This section defines the format of data in Modbus TCP registers More information about Modbus TCP can be obtained from www modbus org More information on the Midas web pages is contained in Section 14 The Midas is a Modbus TCP server as defined in the MODBUS Application Protocol Specification V1 1a It supports command 03 read holding registers for registers 40001 to 40018 as listed in Table 1 This section describes Midas software 1 08 previous software release levels support a subset of these registers The Midas reports floating point concentration numbers in little endian or Intel format This is scaled in units of ppm for gasses which have display units of ppm or ppb For other display units the concentration is scaled directly in display units This applies to registers FCN A1T and A2T A 1 Reading Status from the Midas The Midas fills 18 Modbus TCP holding registers as listed in Table 1 The STTS register is a concise summary of Midas status The other registers provide more complete information Midas Technical Handbook A 2 Honeywell Midas Gas Detector Honeywell Midas Gas Detector Table A1 User Readable Modbus Holding Registers Ref Addr ele NN 40001 STTS Status 0 Warmup 1 Monitor mode with inhibit
104. ion when there is a potential poisoning based gases may be present For further details contact Honeywell Analytics please ensure all gases that are potentially present in the area of detection are available prior to contacting MIDAS E LEL cartridge carries the standard 2 year warranty but can be calibrated to extend its life to 5 years For the 2 year cartridges Honeywell Analytics allows for a period of up to 6 months after the manufactured date for cartridge installation and then 2 years of use If for example the cartridge is installed within the first 6 months the expiration date will be 2 years Midas Technical Handbook Honeywell Midas Gas Detector after the installation date If however the cartridge is installed more than 6 months after the manufactured date it will expire 2 5 years after the manufactured date Contact your local Honeywell Analytics Service Representative for more information An ozone generator can be used instead of 1 ppm Bump Testing Notes 1 If Phosphine is not available Hydrogen Sulfide can be used to test these sensors Use a concentration of 2 ppm IMPORTANT this should only be done once to avoid the danger of poisoning the sensor 2 The ambient Oxygen level is typically 20 9 by volume If there is a serious problem with an Oxygen sensor the reading will not be 20 9 The flow rate is regulated by the Midas unit CO test gases must be in a balance of air not Nitrogen As
105. isconnect it from the mounting bracket assembly see Diagram 9 5 Midas Technical Handbook 9 4 Honeywell Midas Gas Detector Diagram 9 5 Removing the chassis chassis mounting bracket Thread the connector and wire harness from the pyrolyzer through the rectangular access in the bottom of the mounting bracket Secure the wires with a retention clip if available Plug the connector into the socket con5 at the bottom left of the terminal board Align the fitting at the top rear of the pyrolyzer with the sample and inlet ports at the bottom of the mounting bracket 10 Connect the pyrolyzer to the detector with the three provided mounting screws see Diagram 9 6 Diagram 9 6 Attaching the pyrolyzer terminal module a 1999999 O D 2 a gt rectangular access at bottom of bracket connector mounting screws 3 tube pyrolyzer Midas Technical Handbook Honeywell Midas Gas Detector WARNING To maintain sensor accuracy when using the pyrolyzer do not allow the ambient temperature at the point of installation to exceed 30 C 86 F Operation above this temperature may require more frequent bump testing or calibration to confirm working specification Because of the higher operat ing temperatures when using the pyrolyzer module Honeywell Analytics strongly recommends that the ventilated Midas Top Cover Pee number M
106. kit MIDAS K HFX Bromine 0 0 4 ppm and Chlorine Dioxide 0 0 4 ppm kit MIDAS K BR2 Chlorine 0 2 ppm and Fluorine 0 4 ppm kit MIDAS K HAL Carbon Dioxide 0 2 0 v v kit MIDAS K CO2 Carbon Monoxide 0 100 ppm kit MIDAS K COX Diborane 0 0 4 ppm kit MIDAS K B2H Hydrogen 0 1000 ppm kit MIDAS K H2X Hydrogen 0 100 LEL and Methane 0 100 LEL kit MIDAS K LEL Hydrogen Cyanide 0 20 ppm kit MIDAS K HCN Hydrogen Sulfide 0 40 ppm kit MIDAS K H2S Nitric Oxide 0 100 ppm kit MIDAS K NOX Nitrogen Dioxide 0 12 ppm kit MIDAS K NO2 Oxygen 0 25 v v kit MIDAS K O2X Ozone 0 0 4 ppm kit MIDAS K O3X Phosphine 0 1 2 ppm kit MIDAS K PH3 Phosphorous Oxychloride 0 0 4 ppm kit MIDAS K POC Silane 0 20 ppm and Disilane 0 20 ppm kit MIDAS K SHX Silane low level 0 2 ppm kit MIDAS K SHL Sulfur Tetrafluoride 0 0 4 ppm and Chlorine Trifluoride 0 0 4 ppm kit MIDAS K SF4 Sulfur Dioxide 0 8 ppm kit MIDAS K SO2 TEOS 0 40 ppm kit MIDAS K TEO Midas detectors are not ETL approved for monitoring in or sampling from classified areas above 2596 LEL Midas Technical Handbook 15 3 15 6 Accessories and Spares Honeywell Midas Gas Detector Description Part no Sample Line Tubing Duct Adapter 1283K1090 Replacement Pump Assembly for Midas Gas Detector MIDAS A 007 Replacement Internal Air Filter for Midas Gas Detector MIDAS A 009 Replacement RJ45 restraining strap MIDAS A 010 PoE Ethernet Injector MIDAS A 011 Freon IPA
107. l be replaced at no charge within that period only if they will not provide a correct reading after calibration by Authorized Service personnel and only if the sensor cartridge membranes exhibit no physical or chemical damage resulting from exposure to improper substances Note that the Midas sensor cartridge stores an electronic history of each individual sensor cartridge s manufacture warranty and calibration activity that is accessible by Authorized Service personnel Pyrolyzer Warranty Pyrolyzer units both Standard and High Temperature are warranted for a period of 12 months from initial turn on or 18 months from delivery from Honeywell Analytics whichever is less and are subject to the same terms and conditions outlined above C 3 Find out more www honeywellanalytics com Americas Honeywell Analytics 405 Barclay Boulevard Lincolnshire IL 60069 Tel 1 847 955 8200 Toll free 1 800 538 0363 Fax 1 847 955 8208 detectgas O honeywell com Europe Middle East and Africa Life Safety Distribution AG Wilstrasse 11 U11 CH 8610 Uster Switzerland Tel 41 0 1 943 4300 Fax 41 0 1 943 4398 gasdetection O honeywell com Technical Services ha global service honeywell com Www honeywell com Asia Pacific Honeywell Analytics Asia Pacific 508 Kolon Science Valley 1 187 10 Guro Dong Guro Gu Seoul 152 729 Korea Tel 82 0 2 6909 0307 Fax 82 0 2 2025 0328 analytics ap O hon
108. ld be replaced every three months or more frequently if the system is sampling in environments that have high levels of particulate matter or very acidic wet atmospheres Similarly the internal particulate filter should be replaced once a year or more frequently if the sample lines are prone to heavy contamination Every sensor cartridge is shipped with a 12 month warranty and an extended 2 year warranty sensor cartridge is also available for purchase All sensor cartridges are factory calibrated to traceable national standards before shipment to the end user Note that testing or calibrating with the wrong incorrect out of date non traceable calibration gases calibration equipment methods or operating conditions can actually damage the sensor cartridge s lifetime and alter the calibration adversely Only qualified calibration technicians should attempt to calibrate the Midas gas detector Note For details regarding sensor cartridge calibration and bump testing method refer to Section 17 The internal pump module is designed to operate for a minimum of 18 24 months and it is recommended that this pump module part number MIDAS A 007 be replaced every 2 years Midas Technical Handbook Honeywell Midas Gas Detector External Sample Line Filter 780248 3 6 months 1991 0147 3 6 months 1830 0055 3 6 months 1830 0027 1 month Leak Check Leak Check every 6 months or after pump pyrolyzer or internal fil
109. le input causes alarms and faults to be reset when it is updated with ST_LOW ST_MED ST_HIGH or ST_ON Midas Technical Handbook Honeywell Midas Gas Detector nviRequest Updates to this NVI have the effects listed in Table 10 6 These requests are usually sent by the network management tool Table 10 6 Request Implementation Implementation Implementation pese O 1 pmo o peomvomw 4 maensms 1 10 CLEAR ALARM Send reset alarms and faults command 11 ALARM NOTIFY ENABLE Equivalent to NORMAL murem _ DISABLE command mmmwa cm wemwrcm 1 worms wmm OoOO mm Note that disabling the node object has no practical effect This is implemented only for LonMark compatibility 10 8 nvoStatus The meaning of the status bits in this NVO is as listed in Table 10 7 Table 10 7 nvoStatus Implementation LonMark Field Node Object Name Intrpretation objecta ebi o request unimplemented request made disabled inhibited Doo ma o maintenance fault o communication failure to Midas o communication failure to Midas DO memo Doo mm report mask mere capability report mere capability report alarm_notify_disabled inhibit warmup or calibration reset complete Midas Technical Handbook Sens
110. llation Midas Technical Handbook 4 1 4 Installation For ease of installation Midas has been designed to allow the installation of the mounting bracket assembly and terminal module separately from the other parts of the detector The detector location and hard wiring can therefore be completed before fitting the detector s main chassis and sensor cartridge WARNING Midas is designed for installation and use in indoor safe area non explosive atmospheres Installation must be in accordance with the recognized standards of the appropriate authority in the country concerned Prior to carrying out any installation ensure local regulations and site procedures are followed Diagram 4 1 Midas outline dimensions Honeywell Midas Gas Detector 4 1 Mounting and Location of Detector The Midas gas detector has an integral mounting bracket assembly that is easily mounted to a suitable vertical surface such as a wall tool housing mounting plate on a pole etc Drill Template Drill 2 x MA holes 2 3 in 58 50mm 5 91 in 150 00mm Note This drill template is to scale Ally E 4 72 in 120 00mm The Midas Quick Start Guide po T Hd MIDAS A 020 contains a full EL 1 scale drawing Ensure all measurements are EH correct before using as an actual
111. ly engaged by firmly pushing the main chassis horizontally backward on the mounting bracket assembly WARNING DO NOT PUSH ON THE LCD AS THIS MAY CAUSE DAMAGE 5 Align the two attaching screws located at the bottom of the chassis with the screw threads on the mounting bracket assembly 6 Tighten the screws to secure the chassis to the mounting bracket assembly Diagram 4 22 Refitting the chassis Midas Technical Handbook 4 23 1 9 Verify the part number and type of sensor cartridge is correct for your application then remove sensor cartridge from its packaging Sensor Cartridge ID Number Gas ID Number Remove cap from cartridge and bias battery if applicable Add label for secondary gases if necessary Align pins at the top of the sensor cartridge with the socket in the sensor cartridge chamber Carefully push the sensor cartridge into the sensor cartridge chamber until fully seated Lock the sensor cartridge in place using the tabs on either side of the sensor cartridge to secure the cartridge to the main chassis Switch the power switch on the terminal module to the on position Reattach the detector cover by aligning the slots on either side with the locating tabs on the mounting bracket assembly Push the cover horizontally until fully seated 10 Tighten the thumbscrew on the front panel Diagram 4 23 Installing the sensor cartridge How cover is fitted Caut
112. mation regarding alarm settings calibration history and software version are all contained in the status web page Midas Technical Handbook 13 4 Honeywell Midas Gas Detector Diagram 13 3 Event History File Edit ie Favorites cols iy Favorites Midas Unit 512340338 Honeywell Analytics LU dh v Pager Safetyv Toosv Or 12340338 Honeywell Serial Number M12340338 12K50491 Cartridge Serial Number MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 2 12 build 5 IP Address 169 254 60 47 General Event History e Status Event History e Calibration Certificate e Contact Info Help m Events 91 to 100 of 130 m e Zero Calibration e Span Calibration e Flow Calibration 4 20 mA Calibration Make Printable Version Page4 EE Done fa Internet Protected Mode Off fa y R100 All Midas events including calibrations faults and alarms are data logged with a timestamp description and category code The events are color coded to allow a quick overview of the type of event logged Color Event Type Informational Midas Technical Handbook Event History will store approximately 400 events overwriting the oldest with the newest data 30 seconds of data is stored for each alarm event 15 seconds before the event and 15 se
113. mber with contaminants such as dust and debris For details of fitting sensor cartridge refer to Section 4 9 2 2 Mounting Bracket Assembly The mounting bracket assembly comprises of the detector mounting bracket the terminal module the gas sample inlet and outlet ports the cable conduit entry and Ethernet Modbus TCP communications socket Diagram 2 4 Mounting bracket assembly Mounting bracket Terminal module Gas inlet port Gas outlet port Ethernet PoE socket 2 2 1 Mounting Bracket The metal mounting bracket has two slots that allow the detector to be easily mounted to a wall using two suitable screws DIN rail or horizontal mounting options are also available For further details of mounting the detector refer to Section 4 2 2 2 Terminal Module The terminal module is located on the mounting bracket All electrical connections to Midas are made via this module Wire entry to the terminal module area is via the PG16 cable entry conduit entry located at the bottom of the mounting bracket assembly 2 3 Sensor Cartridge A wide range of Flammable Pyrophoric Corrosive and Oxidizer including Oxygen sensor cartridges can be fitted to Midas The plug in sensor cartridges are fitted in the sensor cartridge chamber at the front of the main chassis To access the chamber the unit cover is removed by unscrewing the thumbscrew located at the front of the detector The pre calibrated smart sensor cartridges ca
114. mbly Midas Technical Handbook Honeywell Midas Gas Detector 2 1 Main Chassis The main chassis comprises of the display pump assembly and plug in sensor cartridge chamber Diagram 2 2 Main chassis Service Port Display Pump module Sensor cartridge chamber The Service Port is only for use with approved connectors by Honeywell Analytics service personnel operating a system diagnostic Unauthorized connection to this port may lead to damage of the Midas and external equipment and will not be covered by the normal product warranty conditions 2 1 1 Display The display is located at the front of the main chassis and consists of a large alphanumerical and graphical backlit LCD 3 LED indicators and a 4 button keypad Under normal operation the LCD and LEDs display gas concentration alarm and system status In set up review calibration and test modes the LCD shows the relevant menu options These menus are simply navigated using the A up VW down Y accept and cancel buttons 2 2 Diagram 2 3 Midas display module layout 1 Red alarm LED Normal operation icon Review mode icon Green power LED Set up mode icon Calibration mode icon Yellow Fault LED Test mode icon Gas concentration and message display area 10 Displayed units Pass code icon 12 Accept button 13 Network icon 14 Down button MDA Scientific Midas 15 Inhibit icon
115. n Position the detector so that it can be easily accessed Position the detector so that it is at a suitable height normally eye level for the display to be clearly seen Take into consideration the space required to remove the detector s cover and locking unlocking the sensor cartridge locking clips Minimum recommended spacing between multiple Midas units is 82 mm 3 23 in Take into consideration the space required for sample inlet and exhaust tubing for remote monitoring and for the inlet filter for local monitoring Take into consideration the space required for cable or conduit access Honeywell Midas Gas Detector 4 2 Mechanical Installation The following steps and diagrams show how to separate the mounting bracket assembly from the main chassis and mount it on a vertical flat surface 1 Unscrew the thumbscrew located on the front panel Remove the cover by pulling it forwards off the main chassis Be sure to remove the internal packing card securing the pump Failure to remove this packing will result in damage to the Midas unit See Diagram 4 2 Unscrew the two retaining screws located at the bottom front of the chassis Holding the mounting bracket assembly with one hand use the other to carefully pull the main chassis forward to disconnect it from the mounting bracket assembly Using the drill template provided drill two holes 58 50 mm vertically apart for 2 x round head M4 fixi
116. n easily be fitted or replaced as they simply plug into the detector without the need for any tools The sensor cartridge is firmly held in place by two locking tabs Some cartridges are shipped with a protective cap to shield them from contaminants during shipping This cap must be removed before inserting the cartridge into the Midas unit failure to do so may damage the Midas transmitter Midas Technical Handbook Honeywell Midas Gas Detector Diagram 2 5 Sensor cartridge Protective Cap remove before use Locking tabs Connector RE OVE TIME INS ME ALLATION Front Back 2 3 1 Biased Sensor Cartridges Some sensor cartridges are shipped with a battery powered electrical supply in order to keep the cell effectively warmed up and ready to monitor once installed in the Midas unit Battery powered bias circuits are supplied for TEOS NO and CO The bias circuit is removed just before insertion into the Midas system and the sensor cartridge is thus ready sooner for effective gas detection Should a bias voltage not be applied e g during a power failure the cell will take a longer time to recover before effective gas detection can take place The longer the loss of applied power the longer the recovery time During this recovery time there is a chance for false inaccurate readings Refer to the relevant sensor cartridge data sheet for information on each sensor cartridge In o
117. n the product A warranty claim will only be accepted if a proof of purchase is submitted and all conditions obtained within this Warranty are met Honeywell Analytics reserves the right to validate any warranty claim prior to processing Upon acceptance of a warranty claim Honeywell Analytics will repair or replace the defective product free of charge The initial warranty period is not extended by virtue of any works carried out there after Instruments which have been repaired or replaced during the warranty period are warranted for the remainder of the unexpired portion of the original warranty period Honeywell Analytics is released from all obligations under its warranty in the event repairs or modifications are made by persons other than its own authorized personnel unless such work is authorized in writing by Honeywell Analytics The initial warranty period is not extended by virtue of any works carried out there under Honeywell Analytics reserves the right to change this policy at any time Contact Honeywell Analytics for the most current warranty information Sensor Cartridge Warranty Midas sensor cartridges with part numbers beginning in MIDAS S carry a 12 month 1 year warranty from switch on installation or up to 18 months from the date of shipment from Honeywell Analytics whichever is less provided this takes place before the Activate Before date on the cartridge Pro rata after Activate Before install
118. ng screws Partially screw the fixings into the mounting surface Place the mounting bracket assembly over the screws so they pass through the mounting holes and then slide down to locate in the slots Tighten the screws to secure the mounting bracket assembly Honeywell Midas Gas Detector Diagram 4 2 Mechanical installation Removing cover mounting mounting bracket bracket Chassis Mounting Screws Internal packing card Internal packing card Remove before use Remove before use Midas Technical Handbook 4 5 Honeywell Midas Gas Detector Diagram 4 3 Mechanical installation DIN Rail Bracket Spacer Bracket mounting bracket Standard Midas Wall Mount 2x M4 Screws Secures Midas to Spacer Bracket 4x M3 Screws Secures DIN Rail to Spacer Bracket Optional Midas DIN Rail Mount MIDAS A 036 Optional Midas Pyrolyzer Adjustable L Bracket Mount MIDAS A 032 gt SZ Note Es 7 When using the Adjustable L bracket with the High 5 Temperature Pyrolyzer imi unit 2 Top Access Tubing Connectors MIDAS A M 031 must be used to insure J Say Ee Optional Mi
119. oftware revision Checksum Honeywell Midas Gas Detector Table 6 2 Review menu overview Password key 1 Password key 2 Alarms ALm a Gas Selection Alarm 1 direction U rising d falling Alarm 1 threshold Alarm 2 direction U rising d falling Alarm 2 threshold Alarm delay time Alarm latching Alarm relays normally energized de energized Faults FLt Fault relay configuration Faults latching non latching Fault relays normally energized de energized Fault m12 occurrence frequency Calibration CAL Days to calibration due Days to cartridge expire Year of last calibration Month and day of last calibration Date Time tlmE Year Month Day Time Address nEt Shows web access level Use DHCP server for IP parameters IP address byte 1 IP address byte 2 IP address byte 3 IP address byte 4 Subnet mask byte 1 Subnet Subnet mask byte mask 2 byte 3 Event Log hiSt SA Date of latest event Time of latest event Description of latest event Date of second latest event Time of second event Description of second event Repeat for events 3 7 3 Displays per event LCD Shows LCD Backlight Mode Midas Technical Handbook 6 5 6 3 Overview of Set up Calibration and Test Mode WARNING Set up calibration and test
120. olyzer OP3 pyrolyzer flow is out of range Data value others pyrolyzer internal failure Contact Honeywell Analytics Service Hot and Cool messages are informational events that can be generated under two conditions 1 Immediately after the detector powers up 2 When the state changes from cool to hot or hot to cool Hot means the temperature inside the cartridge is at 40 C or above Cool means the temperature inside the cartridge is below 40 C In both cases the event data field will list the actual temperature at the time of the event Midas Technical Handbook Honeywell Midas Gas Detector 12 Reflex Midas Technical Handbook 12 1 12 REFLEXO Midas uses patented Honeywell Analytics technology to continuously monitor the health check status of specific electrochemical cells and alert the user if a cell enters a variety of fault conditions such as open or short circuit etc which would leave the cell unable to detect gas and raise an appropriate alarm signal REFLEX overcomes this unseen failure mode by applying periodically a special electronic pulse to the cell and reviewing the echo from the cell as it responds to the applied signal If the cell is deteriorating within certain pre set limits based on the received signals then Midas will decrease the REFLEX sampling interval in order to establish the actual viability of the cell Within a relatively sh
121. om normal operation press the A up or Y down button once The icon will be displayed along with the first submenu icon Press the up or down buttons to select a different submenu icon Midas Technical Handbook Honeywell Midas Gas Detector 7 1 1 Review Software SW 1 Select the software SW submenu and press Y to accept The software version number is displayed Press Y to display the software checksum Press v to display the password key 1 Press V to display the password key 2 Press to return to step 1 Repeat steps 1 through 4 to view the information again or press A up or down to select another submenu 8 Press X to return to normal operation N v O 7 1 2 Review Alarms ALm 1 Select the alarms Alm submenu and press Y to accept 2 Thesensor cartridge ID X and the set gas ID code Y are displayed in the format X Y See Appendix B for a list of sensor cartridge and gas ID codes 3 Press to display if the level 1 alarm L1 type is rising U or falling d 4 Press to display the alarm 1 value along with the A1 icon A 5 Press to display if the level 2 alarm L2 type is rising U or falling d 6 Press Y to display the alarm 2 value along with the A2 icon a 7 Press to display the alarm on delay seconds 8 Press to display if the alarm output is
122. on position Refit the detector s cover by aligning the slots either side with the locating tabs on the mounting bracket assembly and pushing the cover horizontally until home Tighten the thumbscrew located on the front panel see diagram 25 Confirm that the LCD messages LOAd and WArm are replaced by a zero concentration display Confirm that the yellow fault LED is off Midas Technical Handbook Note 8 3 REMOVING COVER Honeywell Midas Gas Detector Ifreplacing a sensor cartridge with a different gas type sensor cartridge the display will scroll the message ChAngE gAS If you are changing the sensor cartridge gas type press Y to accept If not fit the correct sensor cartridge The pass code if set must be entered to change sensor cartridge gas type To set the correct gas for a multi gas type sensor cartridge refer to Section 7 2 2 Diagram 8 1 Removing detector cover Diagram 8 3 Fitting replacing sensor cartridge HOW CARTRIDGE IS FITTED Caution When refitting the cover to the Midas unit use caution to prevent damage to the RFI shielding tabs attached to the chassis Midas Technical Handbook Honeywell Midas Gas Detector 8 2 Pump Replacement The pump module has been designed to allow easy replacement New pump modules MIDAS A 007 are supplied with new springs bracket and tubing pre assembled for quick release replacement Pump module MIDAS A
123. on 7 4 3 2 Plug the Inlet Sample line see Diagram 8 8 Midas Technical Handbook Honeywell Midas Gas Detector The flow meter indicators will begin to drop and ultimately disappear within seconds see Diagram 2 3 Continue to keep the port plugged until the Midas reports an F81 Flow Fail approximate time to fault is 1 minute Remove the plug Allow 15 seconds or so to allow the Midas flow to stabilize then clear the fault by pressing and holding X Plug the Outlet Exhaust line 8 Theflow meter indicators will begin to drop and 10 11 12 ultimately disappear within seconds Continue to keep the port plugged until the Midas reports an F81 Flow Fail approximate time to fault is 1 minute Remove the plug Allow 15 seconds or so to allow the Midas flow and concentrations to stabilize then clear the fault by pressing and holding X Return the unit to normal operation Diagram 8 8 Port Location Gas inlet port Gas outlet port Honeywell Midas Gas Detector 9 Pyrolyzer Module Options Midas Technical Handbook 9 1 9 Pyrolyzer Module Options Two Midas Pyrolyzer modules are available to detect specific gases consult the Midas data sheets for an updated list of detectable species The pyrolyzer module option is installed under the Midas gas detector An air sample is drawn through the pyrolyzer and the target fluorinated compounds are converted into hydro
124. on and Test Modes A WARNING Set up calibration and test modes are intended for use by trained personnel or service engineers only Access to these modes can be pass code protected by following the procedure in Section 7 2 7 Set up calibration and test modes are used to make setting changes calibrate and test the detector To select set up calibration or test mode press and hold the A up button or down button for a second to enter the menu The unit will automatically go to the main normal operation status display from setup calibration test menus but not from inside a setup calibration test function if no button is pressed for 5 minutes or if an alarm level is exceeded PASS CODE If a pass code has been set the display will show 0000 with the first O flashing Use the A up or W down buttons to set the first digit of the pass code Press to enter the first digit The second digit will then flash Repeat the process until all four pass code digits have been entered If an incorrect code is entered the display will show Err and return to the normal operation mode If a pass code is forgotten contact your local Honeywell Analytics service department Note Should the passcode be activated the unit will continue to detect gas and indicate maintenance and instrument faults After successfully entering the pass code if set the first menu set up icon will show on the display The CAL calib
125. on icon starts flashing in order to tell the user to prepare to apply zero gas 3 The inhibit g icon is also displayed indicating that no alarm outputs will be generated during this process 4 Press to confirm when ready and the icon goes steady 5 Apply the zero gas or ambient air 6 The dots on the left of the display indicate progress to a successful zero Midas Technical Handbook Honeywell Midas Gas Detector 7 The display will show the zero gas reading and if measured to be stable for an appropriate period of time will display PASS 8 If the zero calibration is unsuccessful then the display will show an error code see table below 9 Press v to exit 10 Press up or W down to select another submenu 11 Press X to return to set up calibration and test menu selection 12 Press X again to return to normal operation 7 3 2 Span Calibration 1 Usethe A up or W down buttons to select the span calibration SPAn submenu and press Y to accept 2 The span calibration icon starts flashing in order to tell the user to prepare to apply span gas The inhibit gy icon is also displayed indicating that no alarm outputs will be generated during this process 4 Use the A up or Y down buttons to select the gas ID code of calibration gas for multi gas ID sensor cartridges only and press to accept Refer to Appendix B for
126. on of gas has been detected The Midas requires an independent Supply known clean air to the Midas and clear the fault e Faults concentration confirmation that the gas hazard is gone x pos m11 User Calibration Expired Days until faut user specified calibration interval has elapsed Perform zero and span calibrations Security Increase span calibration period dll zero days disabled m12 Cartridge Expires Soon Days until faut Cartridge is old and will expire soon Replace the cartridge with a new cartridge Calibration m3 Flow Low Flow cc min Midas is no longer able to regulate the flow Check filters and pump zen Colendo mi4 Interferent Present counts An interferent is degrading the ability of the Midas to detect gas Check application Span Calibration mis Temperature Near Limit Temperature C Temperature is within 2 of limit Check installation environment e Flow Calibration E e 4 20 mA Calibration m16 Baseline Near Limit AJD counts Sensor baseline has drifted Check for background gas concentration temperature or humidity fluctuations Perform zero calibration Replace cartridge Test mi7 Inhibit Timeout Transmitter has been in inhibit mode too long Resume monitoring or increase timeout value e BumpTest mis Software Mismatch Software Coprocessor firmware or bootloader too old Update firmware e Alarm Fault Simulation Version Internet Protected Mode Off 4 QN This page provides a listing
127. or Object interpretation invalid request disabled out of limits open circuit out of service mechanical fault feedback failure over range under range electrical fault unable to measure comm failure fail self test self test in progress locked out manual control in alarm in override Honeywell Midas Gas Detector nvoChkSum This network variable indicates the checksum of the neuron chip and is included to confirm the correctness of the program This will have the value 32533 for Revision 1 0 software This is computed 45 seconds after power up 10 2 3 Other Characteristics WINK Command The LonWorks wink command causes the service LED to energize for approximately six seconds LED Interpretation All LED operation is inhibited for 35 seconds after power up This is because the neuron is held in reset until the internal ARM 7 microprocessor boots If the neuron is unconfigured after 35 seconds the yellow service LED will flash slowly If the neuron is configured the service LED will be dark The interface contains a second LED which can be useful for debugging This is red in color and only visible when the lid is removed from the interface Itis labeled 015 and is located immediately below the black FT X1 transformer on the PCB D15 will blink every second when the neuron is executing code correctly This will be on most of the time if communication to the Midas is successf
128. ort time Midas will be able to alert the user via fault codes that the electrochemical cell is likely to be requiring replacement and is possibly unable to correctly detect gas REFLEX is not required for pellistors or oxygen electrochemical cells as these sensor cartridges provide alternative electronic means to indicate open circuits and other sensor cartridge damage issues Midas Technical Handbook 12 2 Honeywell Midas Gas Detector Honeywell Midas Gas Detector 13 Internal Web Server Midas Technical Handbook 13 1 13 Internal Web Server The Midas gas detector unit utilizes an Ethernet port with the TCP IP protocol as standard The Midas can function as a HTML web page server and these web pages can be viewed on external computer equipment PC PocketPC etc by using a standard software program i e Microsoft Internet Explorer These web pages replicate the user interface on the front panel of the Midas in a more flexible and friendly format for diagnostic and data entry purposes The web pages also contain additional features not available via the keypad This procedure explains how to view web pages for a single Midas which is connected to a single PC only Of course it is possible to connect hundreds of Midas units to an Ethernet network More information may be required from the local IT department and Honeywell Analytics as appropriate 13 1 Physical Network Components The Ethernet 100Base
129. pan calibration correctly See Appendix B for a list of recommended test gases Midas Technical Handbook 13 17 Honeywell Midas Gas Detector Diagram 13 17 Flow Calibration i http 169 254 60 47 x S sing pr am A e le Edit View Favorites Tools Help y Favorites Midas Unit M12340338 Honeywell Analytics eu O d Pager Safetyw Tools Qv Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector des C EI IP Address 169 254 60 47 General Flow Calibration I ane Geto Characterize Baseline Set Point 1 Flow 499 e Calibration Certificate 3 e Contact Info Help Characterize Setpoint 1 Set Point 2 Flow 600 cc min Characterize Setpoint 2 Current Flow Rate 491 cc min Configuration 3 Save New Values e General e Gas Alarms e Faults e SEN Instructions Set Point 1 499 e Press Start to enter flow calibration mode I SetPoint2 600 Calibration Flow Adjust Increase Decrease e Zero Calibration Span Calibration Flow Calibration e 4 20 mA Calibration Test Y Done Internet Protected Mode Off fg RS v The Midas transmitter can have its flow settings calibrated and changed using the web page interface Options to set two flow set points are available Follow the on sc
130. perceived as a false alarm nuisance alarm if not fully communicated to other staff Midas Technical Handbook 13 21 Honeywell Midas Gas Detector Diagram 13 21 Inhibit Mode 8 sing i Favorites E Midas Unit M12340338 Honeywell Analytics fo E d Pager Safetyy Took Or Name HA M12340338 Honey ell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Mi tect nce IP Address 169 254 60 47 Configuration Inhibit e General e Faults MIDAS continues to monitor gas during this test mode Network xx Security Inhibit Level e No Inhibit e Time Date Inhibit Alarm Outputs 5 Inhibit Alarm and Fault Outputs 5 Inhibit Monitoring and Outputs Calibration Inhibit Timeout 30 min e Zero Calibration Span Calibration e Flow Calibration 4 20 mA Calibration Test Bump Test e Alarm Fault Simulation e 4 20 mA Test m Done El Internet Protected Mode Off fa y 100 Inhibit mode temporarily disables the alarm or fault outputs from transmitting a signal during a test and configuration process so as to avoid nuisance or unexpected alarm scenarios The Inhibit Timeout is the period of time in minutes that the Inhibit mode will stay active for until it will automatically default to No Inhibit mode Note The Midas can still monitor gas
131. proportionate to Green Alarm relay 2 activated concentration Red flash White flash Fault relay activated Greater than full Alarm relay 1 activated Green flash White flash p scale Alarm relay 2 activated 21 mA Green 20 Fault relay activated Red flash Yellow flash Alarm relay 1 de activated Alarm relay 2 de activated 2 mA Green flash Green Green 0 Fault relay activated Low flow rate Alarm relay 1 de activated Green flash T Alarm relay 2 de activated 3 mA Green Yellow 13 Fault relay activated Yellow on A Low flow fault Alarm relay 1 de activated Green flash White flash ig Alarm relay 2 de activated 1 mA Green FB Fault relay de activated Yellow flash Yellow flash A Midas Technical Handbook 6 3 6 1 1 Resetting Alarms Faults The alarm function of Midas can be set to latching See Set up Mode so that when an alarm occurs the associated outputs remain activated even if the gas reading has dropped below the alarm level To reset the latched alarm press the cancel button for 2 seconds If the gas level is still above the alarm point you can reset the associated relay but it will activate again after the elapse of any alarm on delay that has been set If the alarm function is set to non latching the display will automatically clear when the alarm condition is cleared The fault function can also be set to latching It can be reset by pressing t
132. r Common Pwr 24 VDC LonA LonB Wiring Notes 1 Maximum wire size is 16 AWG 2 Input voltage range is 20 4 to 26 4 VDC It is mechanically possible to misalign Plug1 and Plug2 Care must be taken when inserting plug to assure correct alignment 4 Plugi and Plug2 are internally connected parallel to facilitate wiring in bus topology Midas Technical Handbook 10 3 1 2 3 Honeywell Midas Gas Detector 5 LonWorks FT 10 wiring is polarity sensitive Lon A and Lon B may be swapped 10 1 3 Configuring the Midas for LonWorks Turn on 24 VDC power Confirm that the Midas initiates the power up sequence Reset Fault F49 if present Set alarm levels and other parameters as desired Confirm that the Midas IP parameters are at default values If changed the DHCP client must be set to n The IP address must be restored to 169 254 60 47 and the subnet mask must be restored to 255 255 255 0 10 2 LonWorks Software 10 2 1 LonWorks Overview LonWorks is a communications protocol developed by Echelon Corporation which facilitates peer to peer communications in a control network The Midas gas detector is available with an optional LonWorks interface f i i NEURON ID 04 C6 FB DF 00 00 i i i i i MDA Scientific Midas lLonWorks Interface Module Honeywell H 5 SN 0120340560 hi PN MID
133. ram Al Diagram A 1 Ping Command C gt ping 10 1 162 75 Pinging 10 1 162 75 with 32 bytes of data time 2ms time lt ims time lt ims time lt ims 162 75 162 75 162 75 1622791 Reply from 10 Reply from 10 Reply from 10 Reply from 10 bytes 32 bytes 32 bytes 32 bytes 32 1 1 1 1 4 Execute the ARP command as shownin Diagram A2 Midas Technical Handbook Honeywell Midas Gas Detector Diagram A 2 ARP Command gt a Interface Internet Address 10 1 162 1 T0 1 162 53 0x2 Physical Address 00 04 27 47 8b 0a Type dynamic 10 1 162 226 00 08 c7 45 07 d0 dynamic 5 Search for the IP address of the Midas in the list This has been highlighted in Diagram A2 6 The MAC address is listed in the Physical Address column So in this example the MAC address of the Midas is 0x00409DBADSCS ARP is defined by request for comment RFC 826 This document was written in 1982 and may be viewed at http rfc sunsite dk rfc rfc826 html A 6 Honeywell Midas Gas Detector B Gas Tables Midas Technical Handbook B 1 Honeywell Midas Gas Detector Maximum Calibration Bump Test Recommended Default Default Sensor Part Sensor i me Recommended Maximum End of line Alarm1 Alarm2 Number Warm up Time ip iv i Bump Test i Sample Line filter minutes as Gas Length m Gas Name Formula 780248 9 100 ppm i MIDAS S E NH3 10 NH
134. ration or xtESt test menu can also be selected using the A up or down buttons Press the accept button to enter the selected menu or the X cancel button to return to normal operation mode 7 2 1 Set up Menu SE The set up menu allows the settings of the detector to be changed The set up menu consists of 6 submenus as shown in the table below Table 7 2 Set up mode submenus Set u P Icon Changeable settings submenu Gas ID alarm 1 and alarm 2 configuration set Alarms points time delay latching non latching energized de energized Configuration latching non latching energized Faults de energized Calibration Calibration interval days Date format mm dd or dd mm current year month Time Date tlmE day hours minutes Auto address selection on off IP address subnet IP address Ed mask values Pass code a Set pass code Note settings in a submenu are accepted when the Y accept button is pressed after the last Midas Technical Handbook Honeywell Midas Gas Detector submenu setting This saves the changes and is indicated by displaying UPdt on the LCD If however the X cancel button is pressed at any time before the changes are accepted this will cause any changes to be cancelled in that particular submenu To select the set up menu from normal operation press the A up button for a few seconds Enter th
135. rder to avoid the risk of loss of gas detection due to unforeseen power loss we recommend that a power management solution such as uninterruptible power supplies are used 2 4 Note Sensor warranty is void ifthe sensor cartridge is opened by unauthorized user Diagram 2 6 Biased Sensor 2 4 Cover The standard cover provides environmental protection and fits over the top front and sides of the main chassis The front panel has viewing windows for the LCD LEDs and sensor cartridge fitted in the sensor cartridge chamber Underneath the LCD window are the 4 push buttons used for navigating the detector s software menus The cover is easily removed to allow access to the chassis by unscrewing the thumbscrew on the front panel and pulling the cover forwards off the main chassis Midas units fitted with a pyrolyzer utilize a ventilated cover due to the high temperatures generated by the pyrolyzer unit See Diagram 2 7 Midas Technical Handbook 2 5 Honeywell Midas Gas Detector Diagram 2 7 Midas covers LED Windows LCD Window Pushbuttons Sensor Cartridge viewing window Thumbscrew Standard Cover LED Windows LCD Window Pushbuttons Sensor Cartridge viewing window Thumbscrew Ventilated Pyrolyzer Cover Honeywell Midas Gas Detector 3 Default Configuration Midas Technical Handbook 3 1 3 Default Configuration Honeywell Midas Gas Detector As standard the Midas g
136. reen sequence of messages to perform the flow calibration correctly Midas Technical Handbook 13 18 Honeywell Midas Gas Detector Diagram 13 18 4 20mA Calibration El http 169 254 60 47 x Ee E File Edit View Favorites Tools Help Ly Favorites IO Midas Unit 2 12340338 Honeywell Analytics Honeywell MDA Scientific Midas Gas Detector Midas Ver 2 12 build 5 General e Status e EventHistory Calibration Certificate Contact Info Help Configuration General e Gas Alarms e Faults e Network e Security e Time Date e Zero Calibration e Span Calibration Flow Calibration e 4 20 mA Calibration Test 3 dA Pager Safetyv Tools v e Name HA M12340338 Serial Number M12340338 Cartridge Serial Number 12K50491 Location MIDAS Gas Detector IP Address 169 254 60 47 4 20 mA Calibration Characterize 4 Awaiting Input 4 20 mA Reading 4 20 Characterize 20 mA Save New Values Start Adjust 4 20 mA Instructions Press Start to enter 4 20 mA calibration mode An external current meter will be needed to calibrate the 4 20 mA output Note Unit must be in normal monitoring mode to enter 4 20 mA calibration mode Done Internet Protected Mode Off 4 5 y The analog output from the Midas can be calibrated for integration with an external control d
137. rforming a zero calibration be sure that the area is free of the target gas and or interfering gases refer to the cartridge data sheets for further details as the presence of a background gas will affect the ability for the detector to properly calibrate to the correct levels If the sample area cannot be verified Midas Technical Handbook Honeywell Midas Gas Detector to be free of the target gas or cross sensitive gases use a cylinder of zero air to perform the calibration Calibration of an electrochemical sensor cartridge is a relatively complex discipline to master and it is possible that in less ideal field conditions the calibration can be far less accurate than under laboratory conditions and therefore substantial inaccuracies can be introduced In the absence of any formal calibration policy by the end user it is preferable to retain the original factory calibration Care must be taken to ensure that the correct materials for an extractive application are obtained from reputable suppliers and are of proven quality and composition Inappropriate calibration equipment will lead to under or over presenting the wrong concentration of gas to the sensor cartridge during the calibration period Likewise contaminated or inadequately flushed tubing and other gas wet surfaces can also introduce errors into the calibration process Only qualified trained personnel should attempt to perform gas calibrations contact your local Hon
138. ring is interrupted due to a fault a test or calibration process or a user requested inhibit the display will flash For details of fault and maintenance fault codes refer to Section 11 Note The first time the Midas is started with a new sensor cartridge an F49 or F88 fault code may be displayed there is no actual fault and the fault message can be cleared by depressing the X cancel button for two seconds Final Start Up Routine Screen Midas Technical Handbook Honeywell Midas Gas Detector Normal Operation 6 1 Normal Operation Mode 9 In this mode the detector displays gas concentration alarm fault and status information via its backlit LCD and front panel LEDs Typical normal operation display and output states are shown below See Section 11 for a full list of fault codes Note The examples in Table 6 1 are for a linear 4 20 mA output over a full scale range of 2 ppm The current output for a given gas concentration will be different for other full scale ranges linear 4 mA 0 full scale to 20 mA 100 full scale The alarm and fault relays are in default latching mode Honeywell Midas Gas Detector Table 6 1 Normal operation display and output states Operational 4 20 mA output Backlight Relay status LEDs Displa State for 2ppm range Classic Mode Multi Color Mode id Alarm 2 Alarm relay 1 activated common case 8 mA Green flash Red flash
139. s Gas Detector a Description Condition Recovery F82 Excessive electrical noise Internal electronics repeatedly noisy Check grounding of Midas chassis Check termination of cable shields Relocate the Midas further from noise sources Add ferrite inductors to cables F83 Pyrolyzer fail Pyrolyzer fails to heat Pw electrical connection to pyrolyzer Replace pyrolyzer also see Section F84 Misc transmitter fault Transmitter is defective Service or replace Midas F86 Coprocessor fail Coprocessor is damaged Contact Honeywell Analytics Service F87 E yralyzer temp limits Pyrolyzer temperature exceeded Clean pyrolyzer cooling vents Contact Honeywell Analytics Service exceede F88 Pyrolyzer heater fail Pyrolyzer heater failed Contact Honeywell Analytics Service Replace the pyrolyzer F89 Pyrolyzer power unreg Target power not achieved within specified time If 24VDC power check 21 6 in lt 26 4 Contact Honeywell Analytics Service span Replace pyrolyzer F90 Pyrolyzer heater mismatch Different pyrolyzer type required Contact Honeywell Analytics Service F91 HTP module required Check that MIDAS S CFX or MIDAS E CFX is Change to HT Pyrolyzer installed for the high temperature pyrolyzer version Replace pyrolyzer heater OP3 pyrolyzer failed to get up to temperature mene Data value 0x1000 F92 pyrolyzer module failure Check flow connections between Midas and OP3 pyr
140. s Module Description Part no Midas LonWorks Interface Module Option for use with connecting a Midas transmitter or a transmitter MIDAS T LON with pyrolyzer to a LonWorks life safety communications network Module provides all communication and power to the MIDAS transmitter and transmits all gas readings faults alarms and other sensor diagnostics via the LonWorks protocol Access to LonMaker version 3 1 configuration software is required available separately Midas Technical Handbook 15 2 Honeywell Midas Gas Detector 15 5 Midas Complete Gas Detector Kits A complete kit including a universal Midas transmitter MIDAS T 004 and a selected Midas sensor cartridge can be ordered as a combined package Each sensor cartridge is supplied with an extended 2 year warranty Sensor cartridge and gas detector are packaged separately for ease of installation Note that to detect NF a separate pyrolyzer module MIDAS T OOP must also be ordered Complete detector kit and sensor cartridge description Kit part no Ammonia 0 100 ppm kit MIDAS K NH3 Arsine 0 0 2 ppm and Germane 0 0 8 ppm kit MIDAS K ASH Boron Trichloride 0 8 ppm Dichlorosilane 0 8 ppm Hydrogen Bromide 0 8 ppm Hydrogen Chloride 0 8 ppm MIDAS K HCL Boron Trifluoride 0 4 ppm Hydrogen Fluoride 0 12 ppm Nitrogen Trifluoride 4 40 ppm and Tungsten Hexafluoride 0 12 ppm
141. s OVA ANA 10 4 10 2 2 Network Variable Behaviors nr 10 5 10 2 3 Other CharactenStiCS icol oco uico 10 9 11 Troubleshooting and Fault Diagnosis 11 Troubleshooting and Fault Diagnosis eee ecce eee rennen 11 2 12 Reflex TA serait stad I AAA AA 12 2 13 Internal Web Server 13 laternal Web Servel auae eiut ca ac AA AAA 13 2 13 1 Physical Network Components 13 2 13 2 Internet Sellings a iocos id 13 2 13 3 Running the Web AAA 13 4 14 Typical Installation Topologies 14 Typical Installation Topologies boiando aic uti cun s usada 14 2 14 1 Conventional MS tA uui iu co acu AAA AA 14 2 14 2 Modbus TEP uiua ia acia ie ea hcec iude si UR cx AAA 14 3 14 3 Power over Ethernet PoE 14 3 15 Ordering Information 15 Ordering InformmoallQp ii end 15 2 15 1 Transmitter pee a nee ne ote eer err ere 15 2 15 2 Midas Pyrolyzer for NE 2 cierto ance rioris caicasccecucsn 15 2 15 3 Midas High Temperature Pyrolyzer for Perfluoro Compounds 15 2 15 4 Midas LonWorks Module eene 15 2 15 5 Mid
142. s in certain conditions Alarms can be set latching which requires direct operator intervention to reset the alarm once activated The User Calibration Period is a reminder of when a calibration message will be broadcast by the Midas via the LCD display analog or digital outputs This can set to a custom period or if set to zero no reminder will be activated The factory default is set for 6 months 180 days Midas Technical Handbook 13 11 Honeywell Midas Gas Detector Diagram 13 11 Fault and Relay Configuration x Bans 1819 E y gt ie Favorites Midas Unit M12340338 Honeywell Analytics CU Pager Safetyy Tools Or 12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector Midas Gas Detector Midas Ver 212 bulla 5 IP Address 169 254 60 47 General Fault and Relay Configuration Status Event History So ot Calibration Certificate Latching Faults 3 Contact Info Help Fault Relay State Normally De Energized Normally Energized Configuration General Relay Configuration Relay 1 Relay 2 Relay 3 e Gas Alarms C Instrument Fault Only Alarm 1 Alarm 2 Instrument Fault Network E S E Separate Fault Relays Any Alarm Maintenance Fault instrument Fault TimelDate Combined Fault Relay Alarm 1 Alarm2 Any Fault
143. set to latching L or non latching nL 9 Press v to display if the alarm relays are set 10 11 12 to normally energized or normally de energized nd Press to return to step 1 Repeat steps 1 through 7 to view the settings again or press A up or W down to select another submenu Press X to return to normal operation 7 1 3 Review Faults A FLt 1 2 7 Select the faults NFLt submenu and press Y to accept The fault relay configuration 1FLt 2 FLt CmbF or nEtr is displayed See Section 7 2 3 for details of fault relay configurations The fault output latching L or non latching nL setting is displayed Press y to display the fault relay normally energized nE or normally de energized nd setting Press to return to step 1 Repeat steps 1 through 4 to view the settings again or press A up or W down to select another submenu Press X to return to normal operation 7 1 4 Review Calibration 1 2 3 4 Midas Technical Handbook Select the review calibration CAL submenu and press to accept The number of days remaining to the next calibration due date is displayed If the number of days is set to zero then no further reminders will be displayed Press to display the number of days until cartridge expiration Press to display the year and press s 7 Honeywell
144. state nonE 2 Monitor mode but alarms inhibited inhibit state AL m 3 Monitor mode but alarms and faults inhibited inhibit state AL Ft nibble 0 4 Monitor mode but fully Inhibited inhibit state ALL 5 Alarm Fault Simulation 6 Bump test mode largely same as state 2 7 4 20 mA loop Calibration mode 8 Calibration Mode other than state 7 15 for future expansion 45 Fault status integer 0 No fault 1 Maintenance fault active nibble1 2 Instrument fault active Wart active Harm 2 acie 8 Relay 1 energized 9 Relay 2 nibble elay Ela 286 10 Relay 3 energized Ht Heartbeat Bit toggles every two seconds to confirm communications rm Relays under remote Modbus TCP control nibble3 for future expansion 40002 GASS Selection Gas ID 815 15 Sensor CartridgelD 40003 FCN1 Gas Concentration in floating point format word 1 of 2 Midas Technical Handbook A 3 Honeywell Midas Gas Detector Ref Addr FAR e 40004 FCN2 Gas Concentration in floating point format word 2 of 2 40005 CONC Gas Concentration in Integer Format PF Conversion equation ppm value Registry Value 1 10 DECP 40006 NOFT Number of most important active fault 40007 DPUN Decimal point and units Decimal point indicator 0 3 for future expansion Concentration units ppm 2 ppb 4 volume 8 LEL 16 mA 0 3 5 6 7 9 15 17 255 for future expansion 40008 TEMP Temperature in Celsius
145. t SNVT lev disc as a Boolean data type The variable nvoAlmS is provided to increase compatibility with Echelon LonPoint modules Note that the values stored in nvoAlmL are slightly different than that of other Honeywell Analytics MDA Scientific gas detectors For example a Vertex will indicate a level 1 alarm by ST MED This is because ST LOW is reserved for small non zero concentrations below the alarm threshold Additionally the System Midas Technical Handbook Honeywell Midas Gas Detector 16 LIFELINE LIFELINE and indicate a level 2 alarm as ST MED Table 10 1 Alarm Outputs nvoAlmL nvoAlm2 nvoAlmS SNVT lev disc SNVT lev disc SNVT switch ST OFF ST OFF 0 0 0 ST LOW ST OFF 0 5 1 Level2 without Level 1 only possible with ST MED ST MED 1 0 1 depletion alarms usual case nvoFaultD This has the value ST MED if an instrument fault exists andthe value ST LOW if a maintenance fault exists If both faults exist this takes ST HIGH It has the value ST OFF if no fault exists A maintenance fault indicates the Midas requires attention but is continuing to monitor An instrument fault indicates a loss of monitoring nvoFaultS This network variable output facilitates identifying the cause of the fault over the network The value byte of SNVT switch will be the fault number These are listed in Section 6 of the Midas Quick Start Guide Additionally a communication failure will
146. t and again to display the last part of the address 8 Press V and the first part of the sub net mask values will be displayed preceded by the letter n 9 Press Vv to scroll through the second third and forth sub net values The number of dots in the upper left indicate which part of the sub net address is being viewed 10 Press Y to return to step 1 11 Repeat steps 1 through 9 to view the settings again or press A up or W down to select another submenu 12 Press X to return to normal operation 7 1 7 Review Event Log A Hi St 1 Select the review event log A Hi St submenu 2 The number of logged data events available is indicated by the number of dots 0 7 shown on the left of the display 3 Press to view the date of the last recorded event 4 Press Y to display the time of the event 5 Press again to display the relevant alarm icon and event code 6 Repeat to view next logged event details 7 Press X to return to normal operation Note More detailed event log information can be viewed using the web browser feature Refer to Section 13 for further details Midas Technical Handbook Honeywell Midas Gas Detector 7 1 8 Review LCD Backlight Mode LCD 1 Select the review LCD submenu and press to accept 2 The LCD Backlight mode setting is displayed 3 Press X to return to normal operation 7 2 Set up Calibrati
147. t button to apply changes Setup Manual erem Automatic e Faults IPAddress 169 254 60 47 e Security Subnet 255 255 255 0 Default Gateway 169 254 1 1 Hostname 12340338 Calibration Accept Reset Zero Calibration Seen Calibration Seow Camas Rebooting will cause indication of a fault on the relays and analog outputs 4 20 mA Calibration 3 E Test Bump Test AlarmFault Simulation Done A Internet Protected Mode Off fax RW The Network setup enables a manual or automated selection of the Midas unit s IP and subnet address Additional information regarding the gateway address and an identifier name for the network can be added on this page The Midas DHCP client reports the hostname over the network to a domain name server The default hostname is based on the Midas serial number and will be seen as HA lt lt lt Midas unit serial number gt gt gt Example HA M0516146 Invalid hostnames are automatically reformatted for validity One additional network setting which controls the web access level is available through the local user interface The two web access levels are Full Control which allows the user to check status make configuration changes perform calibrations and perform tests through the web interface and Read Only which does not allow configuration calibration or tests to be performed through the web interface In read only mode the
148. t time start up an F49 or F88 fault code may be displayed there is no actual fault and the fault message can be cleared by depressing the X cancel button for 2 seconds Midas Technical Handbook 5 2 Honeywell Midas Gas Detector To properly activate the Midas with a cartridge for the first time e When Change Gas scrolls on the display hit the Y on the Midas front panel e When the reboot completes then press and hold the X to clear any latched fault s If FIrSt CEIP is displayed press v The cartridge has now been accepted by the Midas as the correct type to be used Honeywell Midas Gas Detector 6 General Operation Midas Technical Handbook 6 1 6 General Operation After applying power to the detector the display will go through a start up test routine illuminating in sequence all the LEDs icons and digits of the display The display will show the message WAIt and LoAd as it checks for cartridge data typically less than 180 seconds It will then display the message WArm until the sensor cartridge reaches operating temperature When complete the detector will enter normal monitoring mode indicated by the icon on the display cycling through three states 2 rings 3 rings 4 rings The measured gas concentration will be shown on the display The green LED will flash once every second indicating power and the sample flow rate indicator will be displayed If monito
149. ter replacement Bump Test Flow Calibration Flow Calibrate after pump pyrolyzer or internal filter replacement See Appendix B for the correct filter requirement for your application Note The CO2 cartridge s bias battery will last only about 9 months After replacement allow at least a day for the cartridge to reach equilibrium 8 1 Sensor Cartridge Replacement Honeywell Analytics recommends that the sensor cartridge be replaced without power to the Midas unit If fitting a sensor cartridge to a unit that is powered please refer to Section 7 4 3 to inhibit the detector s outputs 8 1 1 Sensor Cartridge Fitting Replacement 1 Unscrew the thumbscrew located on the front panel and remove the cover by pulling it forwards off the main chassis see Diagram 27 Ensure the power switch on the terminal module is in the off position Remove the old sensor cartridge from the unit if fitted by unclipping the two sensor cartridge locking tabs located either side of the sensor cartridge and using them to firmly pull the sensor cartridge out see diagram 23 Fit the new sensor cartridge by aligning the pins at the top of the sensor cartridge with the socket in the sensor cartridge chamber Carefully push the sensor cartridge into the sensor cartridge chamber until fully home and lock in place using the tabs either side of the sensor cartridge see diagram 24 Switch the power switch on the terminal module to the
150. ternet Protected Mode Off far RS A zero gas calibration can be initiated via the web page and is ideal for when access to the Midas unit is restricted due to its location Follow the on screen instructions to perform the calibration sequence correctly Midas Technical Handbook 13 16 Honeywell Midas Gas Detector Diagram 13 16 Span Calibration 4 x 1 sing eee L3 dA v Pager Safetyv Toos Or Name HA M12340338 Honeywell Serial Number M12340338 Cartridge Serial Number 12K50491 MDA Scientific Location MIDAS Gas Detector wee anal IP Address 169 254 60 47 Span Gas Calibration Set Span Gas Information Concentration Reading 0 5 LEL Span Calibration Save New Values e Contact Info Help Configuration x Faults Instructions Gas Hydrogen e Network Press Start enter span gas calibration mode Security Gas Type Humid Dry Time Date Note Unit must be in normal monitoring mode to enter span calibration mode Concentration 50 0 LEL Calibration 4 20 mA Calibration Test Done Internet Protected Mode Off fay 895 y The span calibration sequence can be performed using the web page interface Parameters such as the gas humidity and the gas type can be selected dependent on the gases available per sensor cartridge Follow the on screen sequence of instructions to perform the s
151. that enable detection of gases used or generated in the Semiconductor and other industries Midas is wall mounted and displays gas concentration alarm fault and status information via its backlit LCD and LEDs A simple to use 4 button keypad located under the display provides the facility to set up review operate and make changes to the detector s configuration Midas has flexible power and communications capabilities built in as standard These include 3 on board relays 0 21 mA analog output Modbus TCP outputs for signal and service connectivity as well as the innovative Power over Ethernet PoE connection that enables a single Ethernet connection to be made for all power control and communication requirements An optional LonWorks interface is available Midas Technical Handbook 1 2 Honeywell Midas Gas Detector 2 Product Overview Midas Technical Handbook 2 1 2 Product Overview The Midas gas detector comprises of 4 parts the main chassis the mounting bracket assembly the sensor cartridge and the unit cover Diagram 2 1 details the Midas general arrangement Additionally optional Pyrolyzer modules for the detection of NF or various PFCs and an optional LonWorks module are available Please refer to Section 9 and 10 respectively for details of these options Diagram 2 1 Midas general arrangement exploded view Unit cover Main chassis Mounting bracket asse
152. ul It will be off most of the time if communications to the Midas is unsuccessful Communications is certain to be unsuccessful for 190 seconds after power up due to the Midas boot time 10 9 Caution After commissioning Echelon s LonMaker tool will put this device into the offline state In this mode the Midas interface will not transmit over LonWorks To correct this it is necessary to click right on the device select Manage and click on Online Compatibility with old LonMaker This device is observed to work incorrectly with Echelon LonMaker for Windows version 3 00 66 This is because it was created with NodeBuilder version 3 1 and contains an XIF file in format version 4 The problem is manifested as network variables having the wrong direction outputs appear as inputs The problem can be corrected by replacing a file in the network management tool with a new version This file is C LonWorks bin XIF32Bin exe Echelon has granted permission for this file to be copied freely A copy of this file can be obtained from Honeywell Analytics on request Midas Technical Handbook 10 10 Honeywell Midas Gas Detector Honeywell Midas Gas Detector 11 Troubleshooting and Fault Diagnosis Midas Technical Handbook 11 1 Honeywell Midas Gas Detector 11 Troubleshooting and Fault Diagnosis General trouble shooting guide and specific fault code table for Midas with Version 1
153. y 4 Ensure the PCB connector and tubes are fully engaged by firmly pushing the main chassis horizontally backwards on the mounting bracket assembly WARNING DO NOT PUSH ON THE LCD AS THIS MAY CAUSE DAMAGE 5 Align the two attaching screws located at the s O O E A o 8 Slide the pump module out and disconnect the connector from the pcb AXC O o Midas Technical Handbook 8 5 bottom of the chassis with the screw threads on the mounting bracket assembly Tighten the screws to secure the chassis to the mounting bracket assembly Switch the power switch on the terminal module to the on position Refit the detector s cover by aligning the slots either side with the locating tabs on the mounting bracket assembly Push the cover horizontally until home Tighten the thumbscrew located on the front panel Honeywell Analytics recommends conducting a Flow Calibration See Section 7 3 for instructions 8 4 Filter Replacement The internal filter MIDAS A 009 has been designed for easy replacement The following procedure should be followed carefully and only performed by suitably trained personnel 1 2 3 Midas Technical Handbook Isolate the power to the detector Unscrew the thumbscrew located on the front panel Remove the cover by pulling it forwards off the main chassis Unscrew the two retaining screws located at the
154. y calibration is invalidated 1 7 12 Use the A up or W down buttons to select the mA calibration mA 4 20 submenu and press Y to accept The display shows 4 00 mA indicating that the analog output should be reading 4 mA The inhibit icon is also displayed indicating that no alarm outputs will be generated during this process Use the A up or down buttons to adjust the analog output to read 4 00 mA Press to accept The display will show 20 00 indicating that thePress to update the changes UPdt displayed and return to step 1 Press A up or down to select another submenu Press X to return to set up calibration and test menu selection Press X again to return to normal operation 7 4 Test Menu StESt Honeywell Midas Gas Detector Use the A up or W down buttons to select The test menu is used to test the detector gas reading using bump test gas and for simulation of alarm and fault display and output operation relay analog and digital The test submenu also includes the detector inhibit facility The test menu comprises of submenus as shown in the table below A Caution When using the Test Mode with the Midas be aware that simulations for alarm and fault will trigger any connected devices from the relay mA and or digital outputs Modbus TCP LonWorks as if a real alarm or fault is present If you wish to

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Midas® Gas Detector