ECO-SENSE SINGLE CHANNEL TRANSMITTER User Manual
Contents
1. EC INPUT 1 SYSTEM CONFIG PG 1 SYSTEM CONFIG PG 2 A PRESS CURVE POINTS B system Config gt a Tv Measurement Name 16 UP B Readout Deadband 0 PRESS Enter Key Sequence UP KEY Alarm Settings gt Eunits XXXXXXXXXX 10 DOWN Track Negative NO EDIT to access menu 4 TIMES WeLinearize P NO Sensor Information gt Zero 0 Eunits Linearization Data Data Point 1 Clock Delays gt Span 100 Eunits Backup Config gt NEXT key to Exit Input 10 00 Diagnostics gt Decimal Points 0 Restore Confi gt Out put 10 00 HELP Instructions gt Cal Span Val 50 Upload Sensor Data gt See Manual HELP y y TX Sensor Life NO Simple Sensor Installed Smart Sensor Installed gt 5 ALARM SETTINGS ALARM x SETUP Alarm 1 2 3 menus gt WeAlarm 1 gt B set Point 20 are identical Alarm 2 gt Dead Band 1 Alarm 3 Fail gt ON Delay Os Relay Conf i Not used gt OFF Delay Om Event Lo gt Low Trip NO 3 Catching NO EVENT LOG Edit 08 12 04 03 17 A1 IN Event Log 08 12 04 03 51 A2 IN Clear Event Log 08 12 04 03 55 ACK 08 12 04 04 16 A2OUT r RELAY CONFIG Not used 4 08 12 04 04 23 A1OUT 08 12 04 15 00 A1 IN L Failsafe NO 08 12 04 16 43 K2 Failsafe NO 08 13 04 02 08 A3 iN V K2 Acknowledge NO K2 Refresh Off Down K3 always Failsafe Not used 08 13 04 02 18 A3OUT END OF LOG SENSOR sETUP INFO2. J J J Q J 21 SECTION 1 SAFETY INFORMATION WARNING AN Read and understand the contents of this manual prior to operation Failure to do so could result in injury or death Note Users are responsible for correct translations of this manual into their native language 1 1 Safety Information Read Before Installation amp Applying Power IMPORTANT Users should have a detailed understanding of ECO SENSE ECO A X Transmitter operating and maintenance instructions Use the transmitter only as specified in this manual or detection of gases and the resulting protection provided may be impaired Read the following WARNINGS prior to use WARNINGS N e Calibrate with known target gas at start up and check on a regular schedule at least every 90 days More frequent inspections are encouraged to spot problems such as dirt oil paint grease or other foreign materials on the sensor head not paint the sensor assembly or the Transmitter e Donotuse the ECO A X if its enclosure is damaged or cracked or has missing components e Make sure the cover internal PCB s and field wiring are securely in place before operation e Use only a sensor assembly compatible with the unit and approved by Net Safety e Periodically test for correct operation of the system s alarm events by exposing the monitor to a targeted gas concentration above the High Alarm setpoint Do expose the unit to el
3. EDIT B Recall Cal History gt 4 Input Type H2 S EC New Sensor 01 28 04 Recent Cal 04 05 04 Sensor Life DELAY SETUP 771 CALIBRATION DATES B Ti me 12 35 42 Record 22 of 22 Date 04 22 04 CAL Date 04 05 04 Warm Up Sec 100 Cal Purge Sec 100 UP DOWN to scroll NEXT to EXIT CONTRAST UP DOWN to change NEXT to EXIT waww WARNING DIAGNOSTICS m OUTPUT STIMULATOR 4 Enter Key Sequence eps Alarm processing will EDIT ro acesse memu YE KEY bo darina B Output Simulation Output 4 0 mA ter di ti de mm Relay Test iagnostic mode NEXT key to Exit 1 1 7 EDIT to continue See Manual HELP i Any other to exit Not used m SYSTEM SECURITY m ACTUATE RELAYS Technicians Only B contact Name Secure Level LOW Relay 2 OFF Pass Code Relay 3 OFF Unlocked Not used WARNING Variables in the Technicians Only menu are critical for correct operation A thorough understanding of each variable is required Figure 5 1 Configuration Menu Tree 5 2 Configuration Using the Magnet Passing the magnet over the EDIT key from either data display displays SETUP PAGE 1 as shown in Figure 5 2 The UP DOWN keys maneuver the pointer while EDIT enters sub levels of menu items All SETUP menu items have at least one page of sub menus Items with sub menus are indicated by the symbol right hand pointing arrow at the end of each line To edit menu items u
4. MONITORING INC ECO SENSE SINGLE CHANNEL TRANSMITTER User Manual EL MODEL ECO A X MAN 0114 Rev 0 February 11 2010 Table of Contents SECTION 1 SAFETY INFORMATIONN 1 1 1 Safety Information Read Before Installation amp Applying Power 1 1 2 Contacting Net Safety Monitoring Inc J J J J enne 1 SECTION 2 INSTALLATION INSTRUCTIONS 2 2 1 INE Qua E DR ERES 2 2 2 Ratings and CerulicatlOHS de Dose duo xov ut icdo cona ide 2 2 3 Transmitter Sensor EOCatli liu uuu uyu yu u aa i Qu ne 3 2 4 Th ECO A X EDGIOSHTG uyu u A aa das cu a cuo 4 2 5 System Design Specifications J rre esee nennen J J 5 2 6 Meld Wiring E EE 5 27 2 Wire 4 20mA Explosion Proof Installations 5 ECO A X Transmitter Board Terminals J T T J 6 SECTION 3 INITIAL START UP uu l ae 7 3 1 Transmitter Configuration Menu J Q J 7 3 1 1 Single Gas Monitor Configurati
5. 41 50 26 10 16 40 10 30 6 50 4 05 7000 71 10 44 70 28 10 17 70 11 10 7 00 4 40 7500 76 10 47 90 30 10 19 00 12 00 7 49 4 71 8000 81 20 51 10 23 10 20 20 12 70 7 99 5 03 9000 91 40 57 50 36 10 22 70 14 30 8 99 5 65 10000 102 00 63 90 40 20 25 30 15 90 9 99 6 28 Note Resistance shown is one way This figure should be doubled when determining closed loop resistance 20 Appendix C ECO Sense Specifications ECO Sense Specification and Certifications C 0575 H 2G Ex d IIB H2 T5 40 C lt Ta lt 75 C DNV 09 ATEX 60195X IP64 Special Conditions of Safe Use X Enclosure volume shall not be increased by the addition of the Ex d sensor uS Class Div 1 Grps B D 5 Ex d 2 T5 Class I Zone 1 AEx d 2 5 Type 4X IP64 Certifications and Approval 21 MICROWATT Making Safety Work Tollfree in Western Canada 1 888 388 1592 microwatt com mwsales microwatt com Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary AB Canada T1Y 7J7 1 866 FIREGAS 347 3427 ph 403 219 0688 fx 403 219 0694 http www net safety com Email nsmsales net safety com PRODUCT SERVICES CONTACT INFORMATION Telephone 8am 5pm MDT 403 769 6074 403 717 8219 w Fax 403 219 0694 Email productservices net safety com CN 4 SS r http www net safetv com service product services html MONITORING INC
6. INSTALL NEW SENSOR INSTALL NEW SENSOR B install Sensor gt EDIT to install Historical CAL data Recall Cal History gt New Sensor EDIT Will be Deleted Input Type SMART gt New Sensor 01 28 04 Any other key EDIT to Accept Recent Cal 04 05 04 to Exit NEXT to Abort Sensor Life CALIBRATION DATES Record 22 of 22 CAL Date 04 05 04 UP DOWN to scroll NEXT to EXIT Figure 5 7 Sensor Information Menus Install New Sensor should always be performed when a new simple sensor is installed This deletes historical CAL data and sets sensor life to 100 after initial calibration of the new simple Sensor Recall Cal History recalls each successful calibration These dates may be reviewed by scrolling with the UP DOWN keys Input Type indicates what kind of input or sensor the ECO A X is configured to accept and is typically pre configured at the factory New Sensor displays the date when a new sensor was last installed Recent Cal displays the most recent calibration date 5 6 CLOCK DELAY SETUP Since the ECO A X is equipped with a Real Time Clock amp Calendar Time and Date must be set to correctly match its location They are set at the factory in a 24 hour format but may require adjustment to match the location s time amp date after shipment Follow the procedure in Configuration Using the Magnet in section 5 2 15 Warm Up and Cal Purge time dela
7. Voltage 10 to 30 VDC Power Consumption e Toxic Sensors 2 wire 4 20mA operation 25 mA nominal 24 VDC Memory Non volatile E2 memory retains configuration values in the event of power outages Loop Resistance at nominal 24 VDC power 650 ohms maximum in 2 wire mode 2 6 Field Wiring Installation 4 20mA Transmission Range Info The distance 4 20 mA signals can travel is dependent upon several factors including the cable gauge DC power supply voltage level and impedance of the input of the receiving device Assuming a nominal 24 VDC power supply the maximum total loop resistance should be 650 ohms See Appendix B for resistance table 2 7 2 Wire 4 20mA Explosion Proof Installations ECO A X equipped with smart sensor heads are NRTL Nationally Recognized Testing Lab certified as suitable for explosion proof installations All ECO A X s are NRTL certified for explosion proof installations as long as the sensor head is certified as explosion proof Description The 2 wire current sinking transmitter is the easiest and most economical to install since there are only two wires All of the power needed comes from the current loop and wire sizes may be smaller However only very low power applications are eligible for such transmitters The ECO A X Display assembly shown in Figure 2 3 consumes lt 2 5 mA of quiescent current Toxic electrochemical sensors generate their own signals and therefore require no additional current CAU
8. a clean atmosphere which is free of background gas contaminants ECO A X Sensor assembly with Calibration Cup Calibration Tubing Calibration Gas Figure 4 1 Calibration Gas Input Calibration Steps Use the following step by step procedure to perform ZERO and SPAN calibrations 1 To enter the CAL MODE activate the DOWN CAL key with the magnet and within 5 seconds activate the EDIT key 2 Using the Cal Cup apply clean ZERO gas air from canister or be sure there is no background target gas in the monitored area if ambient air is used After the reading is stable approximately 1 minute activate the EDIT key to perform a ZERO calibration 3 Ifthe ZERO calibration is successful activate the NEXT key to proceed to the SPAN check 4 Apply the correct SPAN gas at 0 5 liters min After the reading is stable approximately 1 minute activate the EDIT key to perform a SPAN calibration WARNING AN The SPAN gas used must match the value specified since this is what the ECO A X will indicate after a successful SPAN calibration The Cal Span Value may be edited if it becomes necessary to apply a different gas concentration see Set Span Value at top of flow chart below 5 Ifthe SPAN calibration is successful the display flashes REMOVE CAL GAS and starts the CAL PURGE delay 6 CAL MODE will be complete after the end of the CAL PURGE delay The flow chart in Figure 4 2 illustrates the above pro
9. access menu HOLD NEXT KEY U Y 5 SECONDS HEST key to Exit 4 TIMES See Manual HELF H OH gt Real Time Clock Model Figure 3 1 Transmitter Configuration Menu 3 1 1 Single Gas Monitor Configuration ECO A X s are 2 wire 4 20mA devices and supports only one electrochemical sensor at this time 3 1 2 Output Zero Output Span Trims Factory Preset Technicians only The Output Zero Trim Output Span Trim entries are digital to analog D2A values that determine the ECO A X s final 4 20mA output Their purpose is to provide precise 4mA and 20mA outputs 3 1 3 Model Name When power is applied to the ECO A X it will briefly show a 10 digit ASCII model name or company name as it starts up The name can be edited in the Transmitter Configuration menu by editing the Model field 3 2 Initial Toxic Monitor Start Up ECO A X Toxic Monitors are factory equipped with an electrochemical sensor which rarely requires adjustments other than routine calibrations to provide accurate readings After installation checks should however be performed to ensure proper operation In addition alarm levels Measurement Name ASCII fields and other variables may require attention by users in order to best serve their application 3 2 1 Initial Toxic Monitor Span Check Prior to the initial Routine Sensor Calibration described below a coarse SPAN gas reading verification should be performed after installation Ap
10. boards carefully package in the original carton and static protective wrapping e Ensure ALL personnel are educated and trained in ESD Control Procedures In general exercise accepted and proven precautions normally observed when handling electrostatic sensitive devices A warning label is placed on the packaging identifying product using electrostatic sensitive semiconductor devices 19 Appendix B Resistance Table Distance Feet AWG 20 AWG 18 AWG 96 AWG I4 AWG 12 AWG 10 AWG 8 100 1 02 0 64 0 40 0 25 0 16 0 10 0 06 200 2 03 1 28 0 80 0 51 0 32 0 20 0 13 300 3 05 1 92 1 20 0 76 0 48 0 30 0 19 400 4 06 2 55 1 61 1 01 0 64 0 40 0 25 500 5 08 3 20 2 01 1 26 0 79 0 50 0 31 600 6 09 3 83 2 41 1 52 0 95 0 60 0 38 700 7 11 4 4 2 81 1 77 1 11 0 70 0 44 800 8 12 5 11 3 21 2 02 1 27 0 80 0 50 900 9 14 5 75 3 61 2 27 1 43 0 90 0 57 1000 10 20 6 39 4 02 2 53 1 59 1 09 0 63 1250 12 70 1 99 5 03 3 16 1 99 1 25 0 79 1500 15 20 9 58 6 02 3 79 2 38 1 50 0 94 1750 17 80 11 20 7 03 4 42 2 78 1 75 1 10 2000 20 30 12 80 8 03 5 05 3 18 2 00 1 26 2250 22 80 14 40 9 03 5 68 3 57 2 25 1 41 2500 25 40 16 00 10 00 6 31 3 97 2 50 1 57 3000 30 50 19 20 12 00 7 58 4 76 3 00 1 88 3500 35 50 22 40 14 10 8 84 5 56 3 50 2 21 4000 40 60 25 50 16 10 10 00 6 35 4 00 2 51 4500 45 70 28 70 18 10 11 40 7 15 4 50 2 52 5000 50 10 32 00 20 10 12 60 7 94 5 00 3 14 5500 55 80 35 10 22 10 13 9 8 73 5 50 3 46 6000 61 00 38 30 24 10 15 20 9 53 6 00 3 77 6500 66 00
11. in this menu as described in Configuration Using the Magnet section 5 2 Zero 0 defines the reading to be displayed when 4mA 0 is the ECO A X s output Span 100 defines the reading to be displayed when 20mA 100 is the ECO A X s output The highest reading allowed is 9999 includes negative polarity sign and one decimal point Polarity is only indicated for negative readings Decimal Points sets the resolution of the LCD readings and may be for 0 1 or 2 Example ZERO readings for 0 1 amp 2 DP s respectively are 0 0 0 amp 0 00 Cal Span Value sets what upscale value must be applied when performing Span calibrations Readout Deadband allows forcing low values to continue to read zero This is useful when there are small amounts of background gases that cause fluctuating readouts above zero The highest amount of deadband allowed is 5 The 4 20mA output is not affected by this menu item Track Negative set to NO causes negative values to read the Zero 096 value in data displays The CAL MODE readout displays negative values regardless of this setting and negative values below the Fault set point will still cause the Fault alarm to trip The 4 20mA output always locks at 4mA when the reading is negative 12 Linearization Data allows nonlinear signals to be linearized by entering the correct curve into the ECO A X Figure 5 4 If Linearize is set for NO the CURVE POINTS menu data is not used and no linearization is appl
12. 0mA operation to conserve power alarm LED s only flash during alarm events 4 2 1 ALARM 3 UNDERSTANDING FAULT LEVEL OPERATION The A3 FAIL alarm is typically dedicated to FAULT conditions indicating sensor failures or out of measurement range conditions However some applications require a third level alarm The A3 menu is identical to A1 amp A2 and may be set to trip at an upscale level value A3 WILL ALSO TRIP WITH MISSING OR FAILED SENSORS REGARDLESS OF THE LEVEL VALUE CAUTION Missing or failed sensors always trip Alarm 3 This is true even with A3 configured as a level alarm and it must be accepted that A3 level alarm events might be caused by the monitored level or by a missing or failed sensor 10 SECTION 5 SETUP MENU CONFIGURATION 51 Menus Database Configuration All ECO A X configuration variables are stored in its menu database Many menu items will contain default values from the factory and require changes to better match a user s particular application ECO A X menus may be configured from the magnetic keypad in 5 10 minutes per transmitter The ECO A X configuration menus are shown in Figure 5 1 Pressing EDIT from either data display enters the EC SETUP PAGE 1 menu
13. 5 10 SYSTEM SECURITY The SYSTEM SECURITY menu offers two levels of protection A LOW level allows CAL MODE sensor calibrations but requires the 4 digit Pass Code prior to altering menus HIGH level locks the entire menu database and the CAL Mode until the correct Pass Code is entered LOW and HIGH security levels always allow viewing of configuration menus but they may not be changed Contact Name is 12 character ASCII field available for displaying a phone or name of personal who know the Pass Code Lost Pass Codes may be recovered by entering the locked security menu and holding the UP key for 5 seconds The 4 digit code appears near the bottom of the screen SYSTEM SECURITY B Contact Name Secure Level LOW Pass Code Unlocked Figure 5 11 System Security Menu 5 11 TECHNICIANS ONLY MENUS Warning A The TECHNICIAN ONLY menu group contains items that are factory configured depending upon the type sensor and input connected to the ECO A X They should not be tampered with after installation If configured incorrectly some items will prevent monitoring of target gases Access requires a special key sequence of four consecutive UP keystrokes to prevent accidental modification of critical items Troubleshoot Response to the input should be checked and it is recommended that a routine be developed for maintenance checks and response of the unit If responses are not desirable check all wiring and refer to Routine S
14. GE delay For example if after a calibration sensor life is 75 the ECO A X transmits 4 75mA during the 5 second interval Note TX Sensor Life should always be set for NO unless the 4 20mA receiver is capable of interpreting the sensor life signal 4mA for 10 seconds after Cal Exit Then 4 5mA for 5 seconds Sensor Life Value 4mA 0 life 5mA 100 life 4mA Monitoring Monitoring Cal level 3 0mA Calibrating Cal Delay Figure 5 5 Transmit Sensor Life Timing Diagram 13 54 Alarm Settings The Alarm Settings page has the Alarm 1 2 3 Setups Relays and Event Log submenus shown in Figure 5 6 Alarm 1 Alarm 2 and Alarm 3 Fail menus are identical and therefore described only once in this section IMPORTANT Alarm functions and their associated LED s are always active Alarm 1 2 3 menus are identical ALARM SETTINGS Bal arm 1 Alarm 2 Alarm 3 Fail Relays Config Alarm Event Log ALARM x SETUP B set Point 20 Dead Band 1 ON Delay Os Not used OFF Delay Om Low Trip NO Lat ching NO Vv EVENT LOG Edit 08 12 04 03 17 A1 IN 08 13 04 02 18 A3OUT B Display Event Log i 08 12 04 03 51 A2 IN END OF LOG Clear Event Lo 08 12 04 03 55 ACK i 08 12 04 04 16 A20UT Down 08 12 04 04 23 A1OUT 08 12 04 15 00 A1 IN 08 12 04 16 43 A1OUT 08 13 04 02 08 IN v Figure 5 6 Alarm Settings Menus Set Po
15. Readour D6adban nq au m 12 Eutr kup 12 13 ONG er eite T a aunties 13 Restore CONTO skua aa tama utuku ner Mrd Dus a eee PSU 13 5 4 eR a u rore 14 5 5 Sensor ntormallOTi uk uuu EP vedere VG dendo ERE 15 56 CLOCK DELAY SETUP uyu Dove au ua s deo Rc 15 LCD GonirasbAd uya tauna uu edis e aa Eae 16 5 8 5 iie piane cedat cobi Le a dide 16 59 WIAQMOSUCS ERR E 16 5 10 SYSTEM SEGURIIY uu u uu ek us hana anpa aas 17 5 11 TECHNICIANS ONLY l l u coro sos 17 on 17 SECTION 6 HOW TO RETURN EQUIPMENT 18 a a 19 Appendix A Electrostatic Sensitive Device ESD 19 Appendix B Hesistance Table uu Qu a a oe aeuo is 20 Appendix C ECO Sense Specifications
16. TION It is important to understand the receiver or controller device must supply the loop power in 2 wire 4 20 modes Be sure the receiver to be used supports this type of operation Instructions Unscrew the cover on the ECO A X explosion proof enclosure Loosen the 2 thumbscrews holding the display assembly in place and remove it A small sensor cable is attached with sufficient length to allow access to the back of the display assembly where 2 position TB1 is located Route the receiver wires through the conduit entry and connect to TB1 Steering diodes in the ECO A X 2 wire 4 20mA output automatically correct for polarity so positive and negative are interchangeable Reassemble the ECO A X Follow the procedures and recommendations in the receiver manual to complete the installation Be sure the ECO A X enclosure and conduit are properly grounded Apply loop power by appropriately powering the receiver device DCS PLC Controller etc and the ECO A X should function ECO A X Transmitter Board Terminals Backside of 10 0232 Display Assembly TBI terminal Wires for power and 4 20 mA output TB1 bottom terminal Display O Assy 10 0232 S4 Not used 2 WIRE 4 20mA Output Non Polar EC Only S3 Not used S1 Not used SMART EC SENSOR TB2 Simple electrochemical sensor input Figure 2 3 10 0232 Display 2 Wire 4 20mA Assembly Table 2 Sensor Terminal conne
17. ak is more likely to raise gas levels in certain areas within the facility Vapor density of a gas determines if it will rise or fall in air when there are no significant currents Lighter than air gases should have the monitors mounted 12 18 inches 30 45 centimeters above the potential gas leak and heavier than air gases should be this distance below Even though the ECO A X is designed for rugged service sensors should be protected from environmental damage from water snow shock vibration and dirt Consider the following points when planning installation Locate the controller where it will be accessible and visible Carefully locate sensor in an area where gases may potentially accumulate Use redundant systems to enhance protection and reliability Light gases tend to rise heavy gases tend to accumulate in low areas Consider the air movement patterns within the facility Consider the construction of the facility such as trenches where heavy gases may accumulate or peaks where light gases may accumulate e Seek advice from experts knowledgeable about the primary gas to be detected e Use common sense and refer to the regulatory publications that discuss guidelines for your industry The two most common installations options are as follows Option 1 The sensor may be installed separated from the transmitter using a Certified Junction Box If the Net Safety Junction Box is being used refer to JB MPG A S in the Net Safety Mul
18. cedure UP CAL NEXT amp EDIT labels indicate keystrokes using the magnet The CAL MODE information screen top of the chart is available for advanced users to see Offset Gain calibration constants and live analog to digital converter A D counts Span Gas calibration values may also be edited from this screen Holding the UP key for 5 seconds during CAL MODE displays this screen Calibration history records are logged and may be viewed in the Sensor Information menu see section 5 5 live neading Eunits CAL MODE info screen Cal Sean Value xxxxxx use to change SPAN GAS value PDT et Sean and to see Offset Gain constants PGA sone HEST Ret to Cal Hold UP key 5 sec Hold UP key 5 sec Back to DATA DATA DISPLAY DISPLAY Heels ZVAL ly SIAL CAL then EDIT Eunitz NEXT KEY E nita NEXT REMOWE PPM_H2S ee ape PPM 25 Measurement Hame HEXT SPRH CAL Mode MERT ENIT CAL Mode Measurement Name EDIT EDIT If ZERO Cal Fails If ZERO Cal OK If SPAN Cal Fails If SPAN Cal OK show for 5 seconds show for 5 seconds FEFERT CHL FEFERT CAL SFAH CAL ZERO FAIL ZERO CAL SPAN FAIL Successful ERROR CODE 4 ERHORCEDDESS Figure 4 2 Cal Mode Flow Chart and Menus 42 ALARM OPERATION The ECO A X has front panel LED indicators for Alarm 1 ALM1 Alarm 2 ALM2 and Alarm 3 FAIL With 2 Wire 4 2
19. cking slip is enclosed inside the box indicating item 1 4 along with the courier and account number for returning the goods Pack items to protect them from damage and use anti static bags or aluminum backed cardboard as protection from electro static discharge ALL equipment must be shipped prepaid Collect shipments will not be accepted 18 Appendix Appendix A Electrostatic Sensitive Device ESD Definition Electrostatic discharge ESD is the transfer between bodies of an electrostatic charge caused by direct contact or induced by an electrostatic field The most common cause of ESD is physical contact Touching an object can cause a discharge of electrostatic energy ESD If the charge is sufficient and occurs near electronic components it can damage or destroy those components In some cases damage is instantaneous and an immediate malfunction occurs However symptoms are not always immediate performance may be marginal or seemingly normal for an indefinite period of time followed by a sudden failure To eliminate potential ESD damage review the following guidelines e Handle boards by metal shields taking care not to touch electronic components e Wear grounded wrist or foot straps ESD shoes or heel grounders to dissipate unwanted static energy e Prior to handling boards dispel any charge in your body or equipment e Ensure all components are transported and stored in static safe packaging e When returning
20. ction Table 3 Power Terminal connection TB2 Sensor Terminals TB1 Power Terminals non polar Terminal Power Sensor Wire designation Connections TBI White CIR TBI top 24VDC Red REF terminal Black SEN TBI bottom 24VDC terminal Note In Table 3 TB1 Terminals Power Terminals are non polarized if 24VDC is connected to TB1 bottom terminal and 24VDC connected to TB1 top terminal a loop current of 4 20mA would still be obtained Sensor separation Since the sensor must be located where gas is likely to accumulate and the controller where it can be easily reached it is often necessary to separate the controller and sensor This is done with the aid of the Sensor Separation kit The Sensor Separation kit is composed of a Net Safety Multi purpose Junction Box and terminal strip Refer JB MPG A S in the Multi purpose Junction Box manual MAN 0081 for terminal designations SECTION 3 INITIAL START UP 3 1 Transmitter Configuration Menu Figure 3 1shows the ECO A X XMITTER CONFIG menu used to activate channels precisely calibrate 4 20mA outputs and set time date Its menus are set at the factory and typically not needed by the user To access from any data display place and hold the magnet over the NEXT key for 5 seconds until the screen appears requesting a special key sequence 4 UP keystrokes AMITTER CONFIG a XX TOXIC XXX CURREWT Enter Key Sequence Lo
21. ectrical shock or continuous severe mechanical shock e Protect the unit from dripping liquids and high power sprays e Use only for applications described within this manual CAUTION FOR SAFETY REASONS THIS EQUIPMENT MUST BE OPERATED AND SERVICED BY QUALIFIED PERSONNEL ONLY READ AND UNDERSTAND INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING OR SERVICING ATTENTION POUR DES RAISONS DE S CURIT CET QUIPEMENT DOIT TRE UTILIS ENTRETENU ET R PAR UNIQUEMENT PAR UN PERSONNEL QUALIFI TUDIER LE MANUE D INSTRUCTIONS EN ENTIER AVANT D UTILISER D ENTRETENIR OU DE R PARER L QUIPEMENT WARRANTY Net Safety Monitoring Inc warrants this product against defective parts and workmanship for a period of 24 months from date of purchase No other warranties or liabilities expressed or implied will be honoured by Net Safety Monitoring Inc Contact Net Safety Monitoring Inc or authorized distributor for details 1 2 Contacting Net Safety Monitoring Inc To contact Net Safety Monitoring Inc call fax email or write 403 219 0688 FAX 403 219 0694 Email nsmsales net safety com 2721 Hopewell Place NE Calgary AB Canada T1Y 7J7 Or visit us on the World Wide Web www net safety com SECTION 2 INSTALLATION INSTRUCTIONS 2 1 Introduction Important This manual describes the 2 Wire 4 20mA versions of the ECO A X The unit is a fixed point monitor designed to provide continuous monitoring of hazardous gases in the workplace Monit
22. ensor Calibrations then perform a calibration If this does not solve the problem contact the factory Repairs to Net Safety products should not be performed in the field Repairs to faulty or damaged equipment should only be performed at the factory otherwise warranty on the product will be voided Refer to How to Return Equipment if returning equipment for repairs 17 SECTION 6 HOW TO RETURN EQUIPMENT A Material Return Authorization number is required in order to return equipment Please contact Net Safety Monitoring at 403 219 0688 before returning equipment or consult our Service Department to possibly avoid returning equipment If you are required to return equipment include the following information 1 A Material Return Authorization number provided over the phone to you by Net Safety 2 A detailed description of the problem The more specific you are regarding the problem the quicker our Service Department can determine and correct the problem 3 Acompany name contact name and telephone number 4 purchase order from your company authorizing repairs or request for quote 5 Ship all equipment prepaid to Net Safety Monitoring Inc 2721 Hopewell Place NE Calgary Alberta Canada T1Y 7J7 6 Mark all packages RETURN for REPAIR 7 Waybills for shipment outside Canada must state Equipment being returned for repair All charges to be billed to the sender Ensure a duplicate copy of the pa
23. ied When YES the CURVE POINT entries are used and a straight line approximation is calculated between each of the 9 entries 0 input always provides 0 output and 100 input always provides 100 output To prevent accidental data entry a special keystroke sequence of 4 consecutive UP keys is required to enter this menu CURVE POINTS Enter Key Sequence to access menu i aelinearize NO QUEMA Data Point 1 NEXT key to Exit Input 10 00 Out put 10 00 See Manual Figure 5 4 Linearization Menu Backup Config allows users to store the entire current ECO A X s menu database into non volatile memory for restoration later if incorrect values are accidentally entered or uploaded Restore Config restores the ECO A X s menu database to the values from the most recent Backup Config The special keystroke sequence of 4 consecutive UP keys is also required to perform backup and restore operations TX Sensor Life set for YES causes the unit s 4 20mA output to transmit a sensor life value after successful calibrations during the CAL PURGE delay see section 4 1 For normal operation the ECO A X transmits 4mA during the CAL PURGE delay But with the TX Sensor Life YES the unit transmits 4mA for the first 10 seconds then for 5 seconds transmits a value between 4mA and 5mA with 4mA equal to 096 sensor life and 5mA equal to 100 sensor life see Figure 5 5 The output then returns to 4mA for the remainder of the CAL PUR
24. int enters the engineering unit value where the alarm trips It may be negative and trip when monitored values fall out of range in this direction A3 has a default negative 596 of range Set Point with Low Trip set for YES This makes it function as a FAULT alarm and trip when the monitored value is more than 596 out of range Dead Band has a minimum value of 1 and a maximum value of 1096 It is useful for preventing alarm cycling when the monitored value is hovering around the set point EXAMPLE With a range of 0 100 ppm if Dead Band equals 5 and the set point is 20 ppm after tripping at 20 ppm the value must drop below 15 ppm to reset ON Delay allows entering a maximum 10 second delay before this alarm becomes active This is useful for preventing nuisance alarms caused by brief spikes beyond the set point OFF Delay allows entering a maximum 120 minute delay before clearing an alarm after the alarm condition is gone This is useful for continuing an alarm function such as operation of an exhaust fan for a period of time after the alarm condition clears Low Trip set to YES causes the alarm to trip as the value falls below the set point Latching set to YES causes the alarm to remain active even after the condition is gone and only reset when the UP RESET key is activated from a data display 14 55 Sensor Information Sensor Information has the SENSOR SETUP INFO menus shown in Figure 5 7 SENSOR SETTINGS INFO uy
25. on J J 7 3 1 2 Output Zero Output Span Trims Factory Preset Technicians only 7 3 1 3 Model Name iani 7 3 2 initial Toxic Monitor Start UD uicit b eere sepe doris cac iuo 7 3 2 1 Initial Toxic Monitor Span Check J een nennt 7 SECTION 4 OPERATING INSTRUCTIONS 8 4 1 Routine Sensor Calibrations Dv qaq 8 42 ALARMOPERATION ul onec cavo cuota 10 4 21 ALARMS UNDERSTANDING FAULT LEVEL OPERATION 10 SECTION 5 SETUP MENU CONFIGURATION 11 5 1 Menus Database Configuration J J J Q J 11 52 Configuration Using the Magnet J nennen nnn nnns 11 53 System Configuration Menus J T J 12 Measurement Nai lieu vea Ta ed DURUM Eu kuwa 12 EUNIS uapa shuyakuk a ACE E LM 12 M A 12 serine re ENDE S 12 Breuer 12 Cal Span V AUG E 12
26. ored values are displayed in their engineering units as well as graphically as a bar graphs or 30 minute trends Figure 2 1 Input is for the electrochemical toxic sensor which is supplied by the factory The ECO A X advanced microcontroller electronics and superior graphic LCD operator interface offers enhanced diagnostics and fault analysis not possible in competing products The unit provides a standard 4 20 mA output signal for connection to control systems or other alarm instrumentation Non volatile memory retains all configuration data during power interruptions Magnetic non intrusive calibration can be easily performed by one person without opening the enclosure A standard real time clock amp calendar feature allows data logging of calibrations and alarm events for recall to the LCD readout Only periodic calibration checks are needed to assure dependable performance Operator interface is very intuitive with the LCD displaying data both graphically as bar graphs trends and in engineering units Figure 2 1 Additional features include No potentiometer or jumper settings required All setup is with menus accessed via the LCD magnetic keypad operator interface without opening the enclosure Field adjustable alarm levels may be high low fault fail safe latching and acknowledgeable New alarms cause front LED s to flash and become steady after acknowledge CAL MODE advises when to apply gas during calibrations One half hour t
27. ply an upscale gas value of at least 2596 of full scale to the sensor For example if 0 100ppm H2S is the measurement range apply at least 25ppm but not more than 100ppm The indicated value should read within 1596 of full scale Hemember that this is only a coarse check and precision calibrations are performed in Houtine Sensor Calibrations described in the following section 4 1 4 1 SECTION 4 OPERATING INSTRUCTIONS Routine Sensor Calibrations Calibration is the most important function for ensuring correct operation of the ECO A X The CAL MODE flow chart shown in Figure 4 2 is designed to make calibration quick easy and error free A successful ZERO and SPAN calibration requires only four keystrokes The 4 20mA output indicates CAL MODE by transmitting 3mA It then transmits 4mA during the subsequent CAL PURGE delay to prevent external alarms during calibration CAL MODE automatically exits if no keystrokes are detected after 5 minutes Follow these calibration guidelines below and also see calibration steps on next page Calibration accuracy is only as good as the calibration gas accuracy Do not use a gas cylinder beyond its expiration date Calibrate a new sensor before use Allow the sensor to stabilize before starting calibration approximately 5 minutes Calibrate on a regular schedule Net Safety Monitoring recommends once every 3 months depending on use and sensor exposure to poisons and contaminants Calibrate only in
28. rend screen shows rate of change of gas exposures Sensor life bar graph updates after each SPAN calibration Modular design affords efficient installation and plug in sensors allow changing target gases after installation e New smart sensors are recognized by the ECO A X and prompts users to either upload new configuration data or continue with data from the previous smart sensor e Sensors are industry proven for fast response and long life Engrg Units Bar Graph Engrg Units 30 Minute Trend UN ung ME ALM1 ALM2 FAIL NEXT 10 PPM H2S unus NE ME UP am ALM2 FAIL NEXT NEXT key toggles readout PPM 25 LLLACN DOWN CAL DOWN CAL Figure 2 1 Data Displays 2 2 Ratings and Certifications ATEX certified for hazardous locations ATEX certificate DNV 09 ATEX 60195X Refer to Appendix C for information on specification and certification Special Conditions of Safe Use X Enclosure volume shall not be increased by the addition of the Ex d sensor 2 3 Transmitter Sensor Location Prior to the installation process a location plan for placing the transmitter and sensor should be developed Factors such as accessibility air movement gas density in relation to air emission sources and environmental variables affect correct sensor and transmitter location Air movement by fans prevailing winds and convection should be carefully evaluated to determine if a le
29. se UP DOWN keys to point to them then activate the EDIT key to enter these 11 items sub menus Use EDIT key to display the cursor then activate UP DOWN key to change that character activate NEXT to move the cursor then activate EDIT key again to load the new item and remove the cursor Activate NEXT to back out of the sub menu To view SETUP PAGE 2 activate the DOWN key with the pointer aimed at the bottom item on PAGE 1 EC INPUT 1 Bsystem Config Alarm Settings Sensor Information Clock Delays Diagnostics HELP Instructions gt gt gt gt gt gt Figure 5 2 Setup Menu Entry 53 System Configuration Menus The System Config group consists of two pages of menus as shown in Figure 5 3 Each item s description follows in this section SYSTEM CONFIG PG 1 SYSTEM CONFIG PG 2 A Bvicasurement Name 16 B Readout Deadband 096 Eunits XXXXXXXXXX 10 Track Negative NO Zero 0 Eunits Linearization Data gt Span 100 Eunits Backup Config gt Decimal Points 0 Restore Config gt Cal Span Val 50 TX Sensor Life NO gt Figure 5 3 System Config Menus Measurement Name be edited to contain virtually any 16 character ASCII field It is typically used to describe the monitored point by user tag or other familiar terminology Eunits engineering units may have up to a 10 character ASCII field Many common gases have pre configured Eunits based upon the sensor type and each may be edited
30. ti purpose Junction Box MAN 0081 for terminal designations The transmitter is located near eye level Conduit is run from the controller to the sensor A Calibration Cup CCS 1 can be attached to the sensor Tubing can be run from the CCS 1 to a convenient location accessible for calibration gas to be injected Option 2 The sensor is wired directly to the controller CCS 1 and tubing is used to facilitate calibration Controller Transmitter and sensor wired separated drawing Apply Calibration gas Box Sensor r L Approximately j knee level 3 Calibration Cup Tubing 2 4 ECO A X Enclosure The ECO A X enclosure is an Aluminum or Stainless Steel explosion proof NEMA 4X enclosure as shown in Figure 2 2 Table 1 ECO Sense ECO A X housing and sensor dimensions A through J in Inches and mm ECO A X Transmitter amp sensor 12 119 Table 1 cont d Transmitter amp I J sensor Transmitter amp sensor AL 3 0 76 90 229 Transmitter amp sensor SS 2 8 71 89 226 Figure 2 2 ECO A X Explosion Proof Housing WARNING AN Qualified personnel should perform the installation according to applicable electrical codes regulations and safety standards Insure correct cabling and sealing fitting practices are implemented Also never install the sensor pointing upwards 2 5 System Design Specifications Supply
31. ys are also available to prevent unwanted alarm trips Figure 5 8 shows the menu for these items CLOCK DELAY SETUP B Time 12 35 42 Date 04 22 04 Warm Up Sec 120 Cal Purge Sec 100 Figure 5 8 Clock amp Calendar Delay Timer Menu 5 7 LCD Contrast Adj LCD Contrast Adj may be set for optimum viewing using the menu shown in Figure 5 9 CONTRAST UP DOWN to change NEXT to EXIT Figure 5 9 LCD Contrast Adjust Menu 5 8 HELP Screen The HELP screen contains several pages of information describing how to operate the ECO A X This is the bottom menu on page 1 of the SETUP screen 5 9 Diagnostics IMPORTANT Gas monitoring and alarm processing are not performed while using the Diagnostics menus Access requires a special key sequence of four consecutive UP keystrokes The Diagnostic menu is useful for driving outputs without exposing the sensor to the target gas The OUTPUT SIMULATION menu allows setting the 4 20mA output to virtually any desired value This is useful for checking responses of devices receiving the ECO A X s 4 20mA output See figure 5 10 WARNING DIAGNOSTICS OUTPUT SIMULATOR Alarm processing will EDIT B Output Stimulation Out put 4 0 mA be halted during diagnostic mode Relay Test Not used EDIT to change Next to exit EDIT to continue Any other key to exit Figure 5 10 Diagnostics Menus 16
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