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QMA401 Trace Moisture Analyzer User`s Manual

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1. registers Register Moisture PPMw Hi Word CURRENTLY DO NOT WRITE TO Moisture PPMw Lo Word Moisture mg m3 Hi Word Moisture mg m3 Lo Word Moisture Pa Hi Word Moisture Pa Lo Word Moisture Ib mmscf Hi Word Moisture Ib mmscf Lo Word Dew point Hi Word in set unit Dew point Lo Word in set unit Enclosure Temperature in set unit Ext Pressure Reading in set unit 195 196 197 198 199 200 201 202 203 204 205 206 207 08 2 209 210 See Appendix B1 Oven Temperature in set unit Seconds Countdown Pressure Reading of cell in set unit I I 3 2 2 1 See Appendix B1 Michell Instruments 57 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 26 2 mE mE E E E EH mE E zum E E E E mE zu KH APPENDI X B QMA401 User s Manual INTERNAL USE ONLY Cal Settling Calibration Cycles Countdown System Status Register Warning Flags Register Current Flow Correction value Moist Gen Value Read After Cal Hi Word Moist Gen Value Read After Cal Lo Word Countdown to Next Cal HHDD Countdown to Next Cal MMSS DO NOT WRITE TO 227 229 Ss 230 Ss Average of 10 deltaF Logs For cal use Average of 10 ppmv Logs For cal use 232 233 234 35 2 10 Sample Averaged DeltaF Hi Word 237 10 Sampled Averaged DeltaF Lo Word 10 Sample Averaged Ppmv Hi
2. isjsripr prjporjorj pr BeatF Median Filter BF Setting DeltaF Median Filter DF Sample size 5 sample Median filter to remove spikes 4 24 Sample size of filter to smooth signal default 12 1 Median of 1 middle value 3 Median of 3 averaged default lt 4 or gt 24 OFF Any other value OFF 68 97450 Issue 1 July 2015 QMAAO1 User s Manual APPENDI X B B 1 Set points and ranges Set points and ranges for Analog Outputs Alarms Fixed User Pressure Cell Pressure and External line Pressure sensor E es eee emm Range Res short 10 short short short 10 short 10 short 10 short short 10 short 10 short 10 short 10 short 10 short 100 short 100 short 100 limited limited short Notes ppm Based on 0 2000 ppm and mol weight of gas variation of 1 to 200 and mol weight of water of 18 At 0 ppmv 0 18 200 Oppm At 2000 ppmv 2000 18 200 180ppm At 0 ppmv 0 18 1 1ppm At 2000 ppmv 2000 18 1 36000ppm Michell Instruments 69 APPENDIX B QMA401 User s Manual Dew Point This is based on data available in ISO or IGT table which ranges between 88 to 20 Water Vapor Pressure Pa Using HumiCal at 100 Cdp Wvp is 0 001pa and at 20 wvp is 2332 636pa Lbmmscf This is ppmv 21 4 so 2000 21 4 42800 mgm Using calc at http www skcinc com converter converter asp 1ppm with mol weight of 1 0 05mgm 1ppm with mol weight of 200 8 2m
3. 001 Bar A 010 Psi G 011 Psi A 100 Mpa 101 mmHg 0 Off 1 On reduces spikes Dew Point Calculation Method to Use DC LG SS BP are for future use 00 IGT 01 ISO 10 Ideal Gas def LG Language SS Sensor Saver BP Bypass Solenoid Note when a pressure unit or temperature unit is changed then the user must manually change the values for the following to the value in the new selected unit if relevant e Fixed pressure for dew point calculation e External line pressure sensor min and max e Alarm set points e Analog output ranges low and high Register Configuration E Alarm Configuration Note Alarm 4 is a system fault warning alarm and is configured in Reg 9 15 14 13 w2 i i o9 set7i e s EREECHEN Alarm1 Parameter A1 Alarm2 Parameter A2 0000 Moisture PPMv def 0000 Moisture PPMv 0001 Moisture PPMw 0001 Moisture PPMw 0010 Moisture MGM3 0010 Moisture MGM3 0011 Moisture PA wvp 0011 Moisture PA wvp 0100 Moisture LBMMSCF 0100 Moisture LBMMSCF 0101 Dew point 0101 Dew point 0110 Oven temperature 0110 Oven temperature def 0111 Flow rate 0111 Flow rate 1000 Cell Pressure 1001 Ext Line Pressure 1000 Cell Pressure 1001 Ext Line Pressure Alarm3 Parameter A3 Alarm Latch Control L1 to L4 0000 Moisture PPMv L1 1 Alarm latch 0001 Moisture PPMw L2 1 Alarm2 latch 0010 Moisture MGM3
4. Appendix B EU Declarationof COIR UY sanzioni pci RU IK e tra IU GOD p 55 Appendix C Quality Recycling amp Warranty Information eee nene 57 C Pressure Equipment Directive PED 97 23 EC 57 C2 Recycling Eege EE 57 C3 WEEE EIN cascucncondetonatad e doro ct dan Eege 57 C 4 ROrS2 COM MOUS EE 58 C5 Warranty EE 58 C6 REACH COMPMANGCE EE 59 C 7 RST PO Van ee 59 cs Calibration FMS dh 60 C9 Man fact rmg DU 60 C 10 FCC EMC Requirements for North America 60 Appendix D Return Document amp Decontamination Declaration een 62 vi 97450 Issue 1 July 2015 QMA401 User s Manual Safety The instrument is designed to be completely safe when installed and operated correctly in accordance with the information provided in this manual This manual contains all the required information to install operate and maintain this product Prior to installation and use of this product this entire manual should be read and understood Installation and operation of this product should be carried out by suitably competent personnel only The installation and operation of this product must be in accordance with the instructions provided and according to the terms of any associated safety certificates Incorrect installation and use of this product other than those described in this manual and other than its intended purpose will render all warranties void
5. REACH This product does not contain or release any prohibited chemicals listed on the SVHC Substances of Very High Concern Candidate List During the intended normal operation of this product it is not possible for the user to come into contact with any hazardous materials This product is designed to be recyclable except where indicated see relevant sections in this manual for further details Michell Instruments vii QMA401 User s Manual Calibration Factory Validation Prior to shipment the instrument undergoes stringent factory calibration to traceable standards Due to the inherent stability of the instrument regular factory calibration is not required under normal operating conditions The instrument should perform reliably for many years with just basic maintenance housekeeping and regular field calibrations from the internal reference moisture generator or a known external reference There are however some consumables that will require periodic replacement H Moisture generator typical lifetime of around 3 years e Desiccant column typical lifetime of around 2 years but this strongly depends on the moisture content of the sample gas The drier the sample gas the longer lifetime of the desiccant Michell Instruments can provide a fully traceable factory calibration service for the instrument and it is recommended that this is considered at intervals of every year of the analyzer s life Please contact your
6. ppm mg Nm vapor pressure Pa frost point C Ibs MMscf T63 2 mins to step change in either direction T95 5 mins to step change in either direction Self Verification Internal moisture generator source calibrated traceable to NPL amp NIST Sensitivity 0 1ppm or 1 of reading whichever is greater Electrical Specifications Response Speed Supply Voltage 85 to 264 V AC 47 63Hz 110 to 300 V DC 1 x System Alarm volt free change over FORM C Alarms 3 x process alarms selectable for various parameters volt free change over FORM C Analog Outputs 2 channels user selectable 4 20 mA or 1 to 5 V Communications Digital Communications RS485 USB Modbus RTU Ethernet Modbus TCP Data logging Logging to SD card at user selectable interval Local Interface 7 color touch screen LCD Operating Conditions Inlet Pressure 1 barg 14 5 psig Outlet Pressure Atmospheric Sample Flow 300ml min total flow without bypass meus Jeng Operating Environment 5 to 45 C 41 to 113 F up to 90 RH Mechanical Specifications Enclosure 19 Rackmount 4U x 434mm Gas Connections 1 4 VCR M Weight 13 5 kg 29 8 Ibs Michell Instruments 53 APPENDIX B QMA401 User s Manual Appendix B Modbus Register Map 54 97450 Issue 1 July 2015 QMA401 User s Manual APPENDI X B Appendix B Modbus Holding Register Map All the data values relating to the QMA401 Trace
7. 3 Selects the parameter for the corresponding alarm Available Options Moisture Content ppmV Moisture Content ppmW Moisture Content mg m3 Water Vapor Pressure Pa Parameter Moisture Content Ibs MMscf Frost Point Oven Temperature Flow ml min Cell Pressure External Pressure Selects the lower alarm limit for the corresponding alarm using the keypad which is opened Selects between latched and non latched alarms Available Options On Off Selects the higher alarm limit for the corresponding alarm using the keypad which is opened Table 2 Alarm Screen Parameters 18 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 6 4 Calibration Screen Calibration Calibrate Cal Method Data Hold Settling Cycles Hold Cycles Cal Cycles Cal Source Internal Calibration Calibrate Cal Method Data Hold Interval Days N Hold Cycles Hour CH Cal Source TET Settling Cycles e EET c m EET e Cal Cycles Calibration Calibrate Cal Method Manual Data Hold Settling Cycles Hold Cycles Cal Cycles Cal Source External Ext Ref ppm Figure 14 Calibration Screens Michell Instruments 19 OPERATION QMA401 User s Manual Parameter Calibrate Starts a calibration procedure if a manual calibration has been selected Toggles data hold mode This determines whether the last valid measurement is held while a calibration is carried out Data Hold Available Option
8. 32 768 to 32 767 B5 Signed Short 10000 Range 3 2768 to 3 2767 Most languages will cast from one type to another Values to write into register manually If value is a negative number value x 65536 If value is 0 or a positive number value x E g for type B3 5 39 100 65536 64997 2 01 100 201 Or cast Unsigned short value x Reading Values from register manually If value in register is greater than 32767 value 65536 x If vaue in register is less than or equal to 32767 value x E g for type B3 64997 65536 100 5 39 201 100 2 01 Or cast float signed short value x Register Configuration C Modbus Configuration 15 14 13 2 11 109 8 RECH EECHER ENEE ENNER L 1 d d derjer 1 j1A 7A TA TA IA IA TA I nstrument Address 1A Protocol Type PT 1 to 31 1 def 00 RS485 def 01 USB VCP 10 Ethernet Register Configuration D System Configuration 15 14 13 32 11 2109 9 8 7 6 5 4 3 2 1 0 Dc bc DF BF BP ss PS PS PU PU PU TU TU LG LG Le Temperature Dew Point Units TU Pressure for Dew Point Calculations PS 00 C def 00 Atmospheric def 01 F 01 Fixed pressure User input value 10 External Line pressure Ext sensor Michell Instruments 61 APPENDIX B QMA401 User s Manual Pressure Units PU DeltaF Mean Filter DF 0 Off 1 On smooth s BeatF Median Filter BF 000 Bar G def
9. L3 1 Alarm3 latch 0011 Moisture PA wvp L4 1 Alarm4 latch 0100 Moisture LBMMSCF L1 0 Alarm dont latch 0101 Dew point L2 0 Alarm2 dont latch 0110 Oven temperature L3 0 Alarm3 dont latch 0111 Flow rate def L4 0 Alarm4 dont latch 1000 Cell Pressure 1001 Ext Line Pressure 62 97450 Issue 1 July 2015 QMA401 User s Manual APPENDI X B Register Configuration F Analog Output Config 15 14 13 2 11 109 8 EH EECHER ENEE ENNER 1 2 tH o 02 02 02 J on 1 01 J 1 Ouput1 Parameter O1 Output2 Parameter O2 0000 Moisture PPMv def 0000 Moisture PPMv 0001 2 Moisture PPMw 0001 2 Moisture PPMw 0010 Moisture MGM3 0010 Moisture MGM3 0011 Moisture PA 0011 Moisture PA 0100 Moisture LBMMSCF 0100 Moisture LBMMSCF 0101 Dew point 0101 Dew point def 0110 Oven temperature 0110 Oven temperature 0111 Flow rate 0111 Flow rate 1000 Cell Pressure 1000 Cell Pressure 1001 Ext Line Pressure 1001 Ext Line Pressure Output Type T1 to T2 0 4 20 mA 1 1 5V Where T1 is CH1 and T2 is CH2 Register Configuration H Time hours minutes 15 14 13 12 11 10 9 s 7 6 5 4 3 2414 o_ HH HH HH HH HH HH HH HH MM MM MM MM MM MM MM MM Hours Number HH Minutes Number MM 00 to 23 00 to 59 Register Configuration I 32 bit Precision Floating Point Repr
10. Moisture Analyzer are stored in holding registers Each of these registers is two bytes 16 bits wide Some of these registers contain instrument specific values e g its own unique system address IP address values etc Others registers hold specific real time data e g measured dew point and temperature Each Modbus message has a two part address code one for the low byte bits 0 through 7 and one for the high byte bits 8 through 15 The facility exists for multiple registers specified by a high and low byte contained in the query message to be addressed and read by the same message The table below describes the instruments registers with their respective address locations together with their relevant register configurations and register map definitions Note Hexadecimal Hex addresses marked with an asterisk denote instrument specific parameters stored in the instrument s flash memory The register maps below the table define the data allocated to each bit byte for each register type idis Function Description Register Notes Real Value Wi ome Range RW Configuration MFC Span in mlm Gas Number for flow rate and mol weight correction INTERNAL USE ONLY Fault Relay Alarm fault selection mask Dryer Capacity ppm Moist Gen Capacity days INTERNAL USE ONLY Alarmi Low Set point SS o2 gZ gZ DO NOT WRITE TO DO NOT WRITE TO See ve See E See E See E Alarmi High Set
11. This product meets the essential protection requirements of the relevant EU directives Further details of applied directives may be found in the product specification Electricity and pressurized gas can be dangerous This product must be installed and operated only by suitable trained personnel Warnings Where this hazard warning symbol appears in the following sections it is used to indicate areas where potentially hazardous operations need to be carried out and where particular attention to personal and personnel safety must be observed Where this symbol appears in the following sections it is used to DANGER indicate areas of potential risk of electric shock Electric Shock Risk Electrical Safety Ensure electrical safety is complied with by following the directions provided here and observing all local operation amp installation requirements at the intended location of use This product is completely safe when using any options and accessories supplied by the manufacturer of this product for use with it Refer to Section 2 Installation of this manual for further details Pressure Safety For this product to operate satisfactorily pressurized gas must be connected to it Observe all the information contained within this manual and all local operation amp installation requirements at the intended location of use Refer to Section 2 Installation of this manual for further details Hazardous Materials WEEE RoHS2 amp
12. be applied directly to the instrument For the calibration to remain valid the QMA401 must be operated at the pressures specified on the calibration certificate typically a sample pressure of 1 barg 14 5 psig with the outlet at atmospheric pressure When using the pressure control option the cell pressure should never exceed the maximum stipulated operating pressure of 1 barg 14 5 psig Michell Instruments 7 I NSTALLATI ON QMA401 User s Manual 2 6 Connection of Gas Supplies Sample gas connections are made via the gas inlet and outlet 1 4 VCR ports located on the rear panel of the instrument as shown in Figure 5 All connections should be made with high quality stainless steel tubing NOTE No external gas couplings are supplied with the analyzer but can be ordered as an accessory by contacting Michell Instruments see www michell com for contact details NOTE Items 1 to 6 are not supplied with the unit and only illustrated to show a typical gas coupling Figure 5 Typical Gas Connections Making a connection to the 1 4 VCR fitting 1 Clip the gasket and its retaining ring 8 over the end of the VCR adaptor 5 2 Locate the end of the VCR adaptor 5 fitted with the gasket 8 over the VCR port 9 and screw the locking nut 7 finger tight to fix the adaptor to the port 3 Tighten the locking nut 7 one eighth of a turn 8 97450 Issue 1 July 2015 QMA401 User s Manual I NSTALL
13. gas stream and is suitable for the measurement of the moisture content of a wide variety of gases In general if the gas in conjunction with water vapor is not corrosive to the sampling system and the sensor base metals then it will be suitable for measurement by the QMA401 The analyzer is designed to automatically regulate the flow rate However the sample pressure and back pressure must match what is shown on the calibration certificate typically 1 barg 14 5 psig sample pressure with the oulet at atmospheric pressure and should be controlled using a high quality pressure regulator on the gas inlet and a back pressure regulator on the outlet General guidelines to be followed when setting up a sampling system are as follows Ensure that the sample is representative of the gas under test To ensure that the sample is representative of the process being monitored the sample point should be as close to the critical measurement point as possible Also never sample from the bottom of a pipe where entrained liquids may be drawn into the Instrument e sample input line Minimize the dead space in sample lines Dead space in sample lines causes moisture entrapment points increased system response times or measurement errors as the trapped moisture is released into passing sample gas producing an increase in partial vapor pressure Avoid the use of too many T pieces in line couplings or other unnecessary pipework Sample pipe
14. point DEED Michell Instruments 55 See E See E mn e LA APPENDIX B QMA401 User s Manual i e BE E NN i NENNEN u Next Calibration n W W W 21 22 23 24 Next Calibration Intervals between cal Next Calibration External Cal Val Hi Word Next Calibration External Cal Val Lo Word 7 correction factor Last Cal Date 2 Day Month Year Last Cal Details 2 Details Last Cal Date 3 Day Month Year Last Cal Details 3 Details Last Cal Date 4 Day Month Year y 7 7 Ext line Pressure Sensor Min Ext line Pressure Sensor Max 46 56 INTERNAL USE ONLY Instrument Serial Number HI WORD Instrument Serial Number LO WORD x 52 185 x Osc Serial Number HI R WORD Osc Serial Number LO R WORD Configuration 0 01 to 2000 00 ppmv User low ppmv limit 0 01 to 2000 00ppmv R W R W R W W WEN 5 510000000 See Appendix B1 See Appendix B1 SEN lu o LO Word HM HEN EMEN pod hoc lt ert LO Word 56 97450 Issue 1 July 2015 al Z s s s GE P1 A3 P2 I I J J K J K J K J K A4 A4 A4 A3 A3 A3 N N N N Ui W W X W W R R R R 1 gZ 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 57 58 59 61 86 87 W 1 W E E pp MEN NN py pe p NEN p qum p p QMA401 User s Manual APPENDI X B 188 194 INTERNAL USE ONLY
15. pressure transducer if Ext Pressure fitted Michell Instruments 13 OPERATION QMA401 User s Manual 3 5 Main Screen Frost Point 66 9 Cell Pressure H20 mg m WVP Pa 3 SR JA IDI SC 0 00 H20 Ibs MMscf Inst Mode Calibration Internal Alarms Next Measurement Om STATUS O BE all amp amp LOGGING CALIBRATE SETTINGS MONITOR Figure 8 Main Screen Description Parameter 1 amp 2 Live reading of the selected display parameters Graph Live graph reading of parameter 1 Alarm 1 2 amp 3 Internal Alarm Instrument Mode Oven Temperature Next Mode The current state of the alarms Possible alarm states Low Alarm type is set to Low and has been triggered because the selected parameter is below the threshold value OK Alarm has not been triggered High Alarm type is set to High and has been triggered because the selected parameter is above the threshold value Displays the state of the internal alarms Possible alarm states No Warning Warning See Status Displays the current instrument mode Possible instrument modes Measure The QMA401 is performing a measurement cycle Cal Internal The QMA401 is performing a self calibration using the internal reference Cal External The QMA401 is performing a self calibration using an external reference Heating The oven is still heating to the set point temperature Displays the countdown to the next mode If the QMA4
16. the manufacturer Michell Instruments or one of their approved agents A list of worldwide Michell Instruments offices is provided at www michell com The analyzer is calibrated at a fixed pressure over the sensing crystals and the analyzer s calibration is only valid while the inlet pressure and back pressures have been set correctly The Auto function can be disabled for calibration purposes see Section 3 6 4 A calibration certificate bearing a nine point calibration is issued with each analyzer If required an option is available to add further specific calibration points by contacting Michell Instruments A list of worldwide Michell Instruments offices is provided at www michell com Figure 29 shows a typical calibration certificate 40 97450 Issue 1 July 2015 QMA401 User s Manual CALI BRATION CERTIFICATE OF CALIBRATION MICHELL QMA401 Instruments The under mentioned item has been calibrated at the following points in the Michell Instruments Humidity Calibration Laboratory against Test Equipment traceable to the NATIONAL PHYSICAL LABORATORY Middlesex United Kingdom and to the NATIONAL INSTITUTE OF STANDARDS amp TECHNOLOGY Gaithersburg Marytand USA Certificate Number 50585 Analyzer Serial Number 129247 Test Date 3 09 2015 Test Equipment Q0224 Acknowledgement Number T23099 Sensor Serial Number 0027 Calibration Temperature C 21 Ref Crystal Serial Number 0100 Mean gas flow ml min 99 95 Sensor Crystal Se
17. with the COM port number je Device Manager E E Son Hep gt al 9 Computer we Disk drives E Display adapters e DVD CD ROM drives Gg Human Interface Devices 3 IDE ATAJATAPI controllers Se Keyboards 8 77 Mice and other pointing devices amp WM Monitors MP Network adapters Y Ports COM amp PT ZY Communications Port COM1 VJ ECP Printer Port LPT1 AN Intel R Active Management Technology SOL COM3 PM Processors DE Sound video and game controllers B X Storage volumes System devices E Universal Serial Bus controllers 6 3 1 2 USB Connection If directly connecting via USB the analyzer will appear in Device Manager as a virtual serial port with the name Michell Instruments USB to UART Bridge Controller followed by its assigned COM port number e g COM3 6 3 1 3 Modbus TCP Connection Ethernet Enter the IP address and port number of the analyzer 44 97450 Issue 1 July 2015 QMA401 User s Manual APPLI CATION SOFTWARE 6 4 Main Window The application software will automatically begin acquiring displaying and charting data from the analyzer once a connection has been established Data acquisition occurs approximately every 2 seconds The chart update rate is 2 seconds but this may be changed by using the chart options window Data logging does not start automatically this is indicated by the text NOT LOGGING on the Main Screen Click the Data Logging but
18. you to stop operating the product Canadian Radio I nterference Regulations This Class A digital product complies with Canadian ICES 001 R glement canadien sur les interf rences radio Ce produit num rique de classe A est conforme la norme NMB 001 Michell Instruments 77 APPENDIX E QMA401 User s Manual Appendix E Return Document amp Decontamination Declaration 78 97450 Issue 1 July 2015 QMA401 User s Manual APPENDI X E Appendix E Return Document amp Decontamination Declaration Decontamination Certificate IMPORTANT NOTE Please complete this form prior to this instrument or any components leaving your site and being returned to us or where applicable prior to any work being carried out by a Michell engineer at your site Address Telephone Reason for Return Description of Fault Has this equipment been exposed internally or externally to any of the following Please circle YES NO as applicable and provide details below re EECHER Biological agents vs IW Hazardous chemi Ye no fRacioacivesubstanees ws Deche ws no Please provide details of any hazardous materials used with this equipment as indicated above use continuation sheet if necessary Your method of cleaning decontamination Has the equipment been cleaned and decontaminated NOT NECESSARY Michell Instruments will not accept instruments that have been exposed to toxins radio activity or b
19. 0 0000045 1011 0110 1001 0110 1111 1110 1011 0101 B696FEB5 Therefore the word value Register Configuration J Date ps 4 3 2 1 0 PMA TE CF FY ce Correction Factor CF Manual or Auto MA 1 to 4000 1000 0 0 001 to 4 000 0 Manual Internal or External 1E 1 Automatic 0 Internal 1 External Register Configuration L System Status Register 229 64 97450 Issue 1 July 2015 QMA401 User s Manual APPENDI X B Cycle Phase CP System Mode SM 00 Reference phase 00 Standby 01 Sample Phase 01 Measurement 10 Cal Phase internal or external 10 Calibration Relay Alarm Status flags Setup Status SS Example 0 Setup mode is OFF A1 00 OK relay de energised 1 Setup mode is ON A1 01 High or Fault relay energised A1 10 Low relay energised Ai 11 Latched relay latched but condition now ok Register Configuration M System Warning Flags Register 230 15114 1 33 2 3 109 9 8 7 16 15 4 3 2 1 0 Warning Condition continuous 10 minutes Outputs at 3 6mA or 0 9V Oven temperature setpoint 29C owe Internal moist generator drift instrument excessive drift or desiccant 0040 dryer deterioration requiring very large corr factor 0 2500 or 74 000 In this case the correction factor would be set to 1 0 vm Oven temperature sensor fault Process Alarms de energised Fault 0200 Alarm Active both Analog outputs at 3 6 mA or 0 9 V ADC lt 10
20. 01 User s Manual Carrier Gas DP Calculation Pressure Input Toggles through the different carrier gas options Available Options Air Ar CH4 C2H2 C2H4 C2H6 C3H6 C3H8 C4H10 CO CO2 H2 He Kr N2 Ne NH3 NO N20 O2 Xe User 1 User 2 User 3 User Gas Entry If a User option is chosen in Carrier Gas then this Parameter will show on the Measurement Page Sets the frost point calculation method Available Options ISO ISO 18453 Ideal Gas IGT IGT Bulletin 8 Selects the pressure source Available Options Atmos Atmospheric pressure Fixed User settable fixed value When the Fixed option is chosen it enables a fixed value to be entered External An externally connected pressure transducer When the External option is chosen it enables the choice of the zero and span range pressure transducer values of 4 or 20mA Table 5 Measurement Screen Parameters 24 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 7 2 Outputs Screen um ja a Output 1 Parameter H20 ppm Output Type Figure 18 Outputs Screen Parameter Output Selects Output required Selector Available Options Output 1 Output 2 Toggles through the different output parameters Parameter Available Options Oven C ml min Cell Pr barg External Pr barg H O ppm H O ppm H O mg m WVP Pa Ib MMscf DP C Selects the lower output limit for the corresponding output Selects the higher output
21. 01 is in warm up mode this parameter is replaced with a live oven temperature reading Graph Delta Above shown as ADP C Displays the difference between the P minimum and maximum graph measurements Table 1 Main Screen Parameters 14 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 5 1 Large Display Mode Frost Point 3 0 barg 66 9 H20 mg m Inst Mode Measure WVP Pa Next Measurement 60 0 C H20 Ibs MMscf Gas Phase Sample Internal Alarms A Next Phase 5s Touch screen to exit page Figure 9 Large Display Mode e To access large display mode press and hold on the measurement parameter to be enlarged e To return to the Main Screen touch anywhere on the screen 3 5 2 Full Screen Graph H20 mg m A ppmV WVP Pa Inst Mode Heating H20 Ibs MMscf Oven Temperature 60 0 C Internal Alarms Gas Phase Reference Figure 10 Full Screen Graph Displays a full screen graph of Parameter 1 e To access the full screen graph press the graph area of the Main Screen o To return to the Main Screen touch anywhere on the screen Michell Instruments 15 OPERATION QMA401 User s Manual 3 6 Main Screen Sub Menus The following sub menus can be accessed from the Main Screen Status Logging e Alarms D Calibrate H Monitor 3 6 1 Status Screen The buttons on this screen are used to toggle the internal alarms on off When an individual alarm is disabled it will not trigger t
22. 1 MICHELL Instruments QMA401 Trace Moisture Analyzer User s Manual D MICHELL GEIER BENE NE g 97450 Issue 1 July 2015 Please fill out the form s below for each instrument that has been purchased Use this information when contacting Michell Instruments for service purposes Analyzer Code Serial Number Invoice Date Location of Instrument Tag No Analyzer Code Serial Number Invoice Date Location of Instrument Tag No Analyzer Code Serial Number Invoice Date Location of Instrument Tag No 41 MICHELL Instruments TRACE MOISTURE ANALYZER QMA401 For Michell Instruments contact information please go to www michel com 2015 Michell Instruments This document is the property of Michell Instruments Ltd and may not be copied or otherwise reproduced communicated in any way to third parties nor stored in any Data Processing System without the express written authorization of Michell Instruments Ltd QMA401 User s Manual Contents Safety E vii Uc pc vii 3 ugs Mn T vii Eege vii Hazardous Materials WEEE RoHS2 amp REACH innen vii Calibration Fotell viii Repar and Maintenance an ee ee viii DE HON EE ix 1 INIRODUCTION eegent 1 MEC ME 1 1 2 Theory Of Operaatio M EE 2 13 SampleGas nr EE 2 14 Internal Sampling ODUDS uu sscsdsa
23. 84 285 286 287 288 289 290 291 X 29 29 4 5 296 APPENDIX B QMA401 User s Manual Log Buffer Main Val Max Hi_Word Log Buffer Main Val Max Lo_Word Logi Hours Minutes Logi Day Month Seconds Logi Main Value H Word Logi Main Value Lo Word Logi System Status Loo Warning Flags Register Log2 Hours Minutes Log2 Day Month Seconds Log2 Main Value H Word Log2 Main Value Lo Word Log2 System Status Register Log2 Warning Flags Register gt gt gt Tolog288 Table 11 Modbus Register Map As above Register Configuration A 15 14 13 32 112 10 9 8 7 6 5 4 3 2 1 ae WEE eee FE A1 Unsigned Short Range 0 to 65535 A2 Unsigned Short 10 Range 0 to 6553 5 A3 Unsigned Short 100 Range 0 to 655 35 A4 Unsigned Short 1000 Range 0 to 65 535 A5 Unsigned Short 1000 Range 0 to 65 535 Conversion Float x unsigned integer Unsigned integer x float Or cast Float value to read float value x Unsigned short value to write unsigned short value x Register Configuration B 15 14 13 2 H8 1009 9 8 7 6 5 4 3 2 1 0 60 97450 Issue 1 July 2015 QMA401 User s Manual APPENDI X B LI ILILIILIELIIILILIIII Bi Signed Short Range 32768 to 32767 B2 Signed Short 10 Range 3276 8 to 3276 7 B3 Signed Short 100 Range 327 68 to 327 67 B4 Signed Short 1000 Range
24. ATI ON Connection to a VCR to 1 4 Swagelok tube adaptor available as an accessory 1 Cut 4 stainless steel tubing 1 to the correct length and if necessary bend to shape to suit the location of the instrument NOTE To facilitate ease of connection to the adaptor 5 at least 75mm 3 in of the tubing coming out of the adaptor must be straight 2 Clean off any burrs or metal shavings adhering to the tubing 3 Pass the tubing 1 through the locking nut 2 and the back ferrule 3 4 Place the front ferrule 4 over the stainless steel tubing 1 bevelled end towards the adaptor 5 5 Insert the stainless steel tubing 1 as far as it will go into the adaptor 5 and tighten up the locking nut 2 finger tight 6 Hold the adaptor 5 flats with a spanner and tighten up the locking nut 2 This action compresses the front ferrule 4 and back ferrule 3 onto the tubing to form a gas tight seal Caution Do not overtighten as this could cause the ferrules to crack and destroy the integrity of the seal The couplings can be checked for leaks by pressurizing the system by connecting the sample line to the process and introducing a proprietary leak test solution into each of the test ports 6 located on the locking nut 7 If a stream of bubbles is produced then the gasket seal is leaking If no bubbles are produced the seal is gas tight If a leak is detected tighten up the locking nut 7 a little more until the
25. Directive and wherever possible compliance is achieved All future products will be developed entirely using compliant materials Furthermore Michell Instruments is taking active steps to remove non compliant materials and components from existing products wherever these may occur Presently none of the non compliant materials are known to occur in Michell Instruments products The new Directive 2011 65 EU RoHS2 entered into force on 21 July 2011 and required all Member States to transpose the provisions into their respective national laws by 2 January 2013 Under the provisions of the RoHS2 EU Directive 2011 65 EU Article 3 24 defines Control and Monitoring Equipment specifically as monitoring and control instruments designed exclusively for industrial or professional use RoHS2 EU Directive 2011 65 EU states the closing date for compliance of any Control and Monitoring Equipment product sold into the EU market place as 22nd July 2017 However the careful design policy of all Michell Instruments products continues to attain compliance in the shortest practical timescales and strives to ensure that less than 0 1 of total mass per product of all non compliant materials appear within them Michell Instruments continues to monitor suppliers and material sources to ensure that compliance of goods provided is maintained January 2013 D 5 Warranty Unless otherwise agreed the Supplier warrants that as from the date of delivery f
26. MMOCUION MU 42 6 3 GUNG SIAN eG e 43 6 3 1 Connection Method Serial Connection RS485 or USB 44 6 3 1 1 R9485 EONNEEEION EE 44 6 3 1 2 USB Gelle e ele WEE 44 6 3 1 3 Modbus TCP Connection Ethernet riskieren 44 6 4 Main WINK OW EE 45 6 5 Using the Chart ss 46 6 5 1 Chart Options VQ Eege 47 0 6 Data LOGGING ac en 48 6 6 1 Configuring Logging Start Times 49 6 6 2 Configunng Logging Stop TIME nee SEENEN 49 6 6 3 Staring thE e EE 49 6 6 4 Viewing a N E 49 6 7 iParameters Field Gallbrationis asics ee ee 49 6 7 1 Field Cali rato E 50 7 We E CR 51 AI Preparation for Shipping and PACKING anne 51 Tables Table 1 Main Screen Datrametere NNN ANNER RRE RRE 14 Table 2 Alarm Screen EE le 18 Table 3 Calibration Screen Parameters u ihnen anna nennen een 20 Table 4 Monitor Screen Parameters eene mnn nne nnn nnns 21 Table 5 Measurement Screen Parameters uk 24 Table 6 Outputs Screen Parameters eege EE 25 Table 7 HMI Setup Screen ug 26 Table 8 Real Time Clock Screen Parameters eene mnn 27 Table 9 Modbus Screen Parameters cccccccseceeceeueceeeuseeeueeueeeueeeuecueeeueeaeeeeueaueeseeeegs 28 Table 10 Ethernet Screen Parameters cccscccsccssscesccesscessuseeueecusseeseuesueeeausaueeueesaesaes 28 Michell Instruments V QMA401 User s Manual Figures Figure 1 Measurement Syste M 2 Figure 2 Internal S
27. RVAL INTERVAL UNITS START STOP ALARM SELECTOR LATCH RESET ALARM LOW PARAMETER HIGH OVEN TEMP OUTPUT 1 OUTPUT 2 OSCILLATOR COM ETHERNET COM DESICCANT DRYER MOISTURE GEN MEASUREMEN e gestis GAS DP CALCULATION PRESSURE INPUT OUTPUT SELECT DATA HOLD RTC PARAMETER CAL SOURCE OUTPUT TYP MODBUS MOISTURE PPMV a ETHERNET MAX DELTA HZ SYS TEMP C LANGUAGE PRESSURE UNIT FLOW RATE CHART PERIOD FLOW UNIT SEINE FIRMWARE VER BRIGHTNESS PARAMETER 1 EXT PRESSURE TEMP UNIT PARAMETER 2 DAY MONTH YEAR SAVE DATE HOUR MINUTE SAVE TIME MODBUS ID OUTPUTS CALI BRATE HMI REF SOLENOID SAMPLE SOLENOID CAL SOLENOID DRYER LEFT MG DAYS LEFT SCE MGV PROTOCOL IP ADDRESS SUBNET MASK DEFAULT GW Figure 7 Menu Structure 12 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 4 Description of Measured Parameters Moisture content ppm Parts per million of H O by volume Moisture content ppm Parts per million of H O by weight Moisture content mg m Milligrams H O per cubic meter gas Water Vapor Pressure Pa Water vapor pressure in pascals Ibs MMscf Pounds H O per million standard cubic feet Frost point temperature of either ideal or natural gas depending Frost Point on options set on measurement screen Oven Temperature Temperature of the internal oven Flow Gas flow rate Cell Pressure Pressure measured by the internal pressure transducer Pressure measured by an external
28. String to Sensor Comms Channel 7 Send Test String to Display Comms Channel 10 Force Analog Output 1 to 4 mA 66 97450 Issue 1 July 2015 QMA401 User s Manual APPENDI X B 11 Force Analog Output 1 to 20 mA 12 Force Analog Output 2 to 4 mA 13 Force Analog Output 2 to 20 mA 14 Force Analog Output 1 to 12 mA 15 Force Analog Output 2 to 12 mA 20 Set Alarm Relay1 21 Set Alarm Relay2 22 Set Alarm Relay3 23 Set Alarm Relay4 25 Set REF Solenoid uses 100 power to solenoid 26 Set SAMPLE Solenoid uses 100 power to solenoid 27 Set CAL Solenoid uses 100 power to solenoid 28 All Solenoids Off uses 100 power to solenoid 30 Set RTC Calibration ppm error value 35 Set Defaults Osc Board 36 Set Defaults Main Board Does not default the main board calibration values 50 Set System Mode to Standby all solenoids off and no phase countdown 51 Set System Mode to Measurement if in Cal mode i e Abort Cal OR Set to Manual Cal if in Auto cal countdown mode 52 Set System Mode to Calibration if manual cal option set OR Start Auto Cal countdown mode if Auto Cal option set Only if oven temperature has become stable 60 Start on board SD Logging Open log file 61 Stop on board SD logging Close log file 65 Enter Board Setup Mode Normal measurement cycle and output alarm updates are stopped 66 Exit Board Setup Mode Normal measuremen
29. Word RJ E RJ M sl mw sl fo sl e or sl Ir DEEN Emm Ip Ppmv Lo Word sl a sl ofa sl a nl ov ol fe ml e wj e wj e wj e wj e ERY T 236 238 Oven Temperature Live Averaged ADC Val Internal Pressure Live Averaged ADC Val External Pressure Live Averaged ADC Val Dryer Capacity Used Moist Gen Capacity Used INTERNAL USE ONLY 239 240 241 242 243 244 DO NOT WRITE TO Volatile Cannot write via Modbus only via display Ethernet Settings IP zum Address Upper Bytes Ethernet Settings IP Address Lower Bytes Ethernet Settings Subnet Mask Upper Bytes Ethernet Settings Subnet Mask Lower Bytes Ethernet Settings Def Gateway Upper Bytes Ethernet Settings Def Gateway Lower Bytes 251 INTERNAL USE ONLY DO NOT WRITE TO 252 DeltaF Log t0 Hi Word 58 97450 Issue 1 July 2015 246 247 48 2 249 250 QMA401 User s Manual APPENDI X B DeltaF Log t0 Lo Word DeltaF Log t1 Hi Word LE EM NI LUE E LUUD Ppmv Log t2 Lo Word Points to start of latest log 59 292 293 INTERNAL USE ONLY X Log Buffer Latest Log Pointer Log Buffer Main Val Min Hi Word Log Buffer Main Val Min Lo Word Michell Instruments 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 2
30. able For information the default serial settings are Baud 9600 Parity NONE Data bits 8 Stop bits 1 42 97450 Issue 1 July 2015 QMA401 User s Manual APPLI CATION SOFTWARE 6 3 Getting Started On launching the software the connection console will appear allowing you to establish communications between the software and QMA analyzer Choose the Modbus slave address default is 1 and the serial COM port that the instrument is connected to NOTE TCP is not supported in this instrument QHA Application Software Connection console Click the Connect button After a few seconds the software will report a successful connection or not If the connection is successful the word Connected and a green tick will appear QHA Application Software Connection console Click the Continue button to continue onto the main acquisition window Michell Instruments 43 APPLICATION SOFTWARE QMA401 User s Manual 6 3 1 Connection Method Serial Connection RS485 or USB Select the COM port to which the analyzer is connected 6 3 1 1 RS485 Connection An RS485 to RS232 converter must be used when connecting to a computer s built in serial port or when connecting to a RS232 to USB adaptor To find the COM port number of assigned to a USB to RS232 adapter open Windows device manager and expand the Porte COM amp LPT branch The USB to RS232 adapter should be listed in this branch together
31. al time clock Remote Terminal Unit storage device card universal asynchronous receiver transmitter Universal Serial Bus Volts Inch delta percentage ohms Michell Instruments QMA401 User s Manual INTRODUCTI ON 1 1 1 INTRODUCTION General The QMA401 Moisture Analyzer is designed to provide reliable fast and accurate measurement of trace moisture content in a wide variety of applications where keeping moisture levels as low as possible is of critical importance The high contrast LCD touchscreen display presents all measured data to the user in a clear and understandable format The main display incorporates a real time trend graph and alarm indicators based on the NAMUR 102 standard A powerful and intuitive HMI makes control logging and configuration of analyzer parameters straightforward The instrument provides two user configurable analog outputs and ModBus RTU communications allowing it to interface with a SCADA DCS system or by a computer using the dedicated application software A pair of adjustable isolated alarm contacts allow the QMA401 to be used for direct process control The QMA401 offers e ModBus RTU e Datalogging to SD Card e 2 user configurable analog outputs e Status and Process Alarms Minimal amp Straightforward Maintenance Sophisticated instruments are often complicated and require experience and special care in use increasing cost of ownership The QMA401 differs through its
32. ampling ge 3 Figure 3 EE EE PD 5 Figure 4 Rear Panel Connections anni 6 Figure 5 Typical Gas CONMCCHONS sii tescscsancicaeacadinniensinaatelatatenniederdeladeniehsasantzonunranans 8 Figure 6 Doe PM eebe Ee 11 Figure 7 io SU UCUN ee 12 Figure 8 Main Screen E 14 Figure 9 Large Display E 15 Figure 10 EE 15 Figure 11 Status Sreem aia i 16 Figure 12 LOGGING SCHOEN EE 17 Figure 13 Alarm Saree 18 Figure 14 Calibration SCP CRIS Me AE E ti 19 Figure 15 MOMON SEEM en ne ee 21 Figure 16 SEINES Menu EE 22 Figure 17 Measurement SCREEN nes He 23 Figure 18 S dri Ros c naeh 25 Figure 19 DEC o 26 Figure 20 Real TIME CIO SEN PR 27 Figure 21 MOOBUS STEEN E 28 Figure 22 Ethernet BO E 28 Figure 23 PROT STO thc ats 29 Figure 24 e e M 29 Figure 25 Measurement Cycle Phase 1 Dried Sample Flow eene 33 Figure 26 Measurement Cycle Phase 2 Calibration Flow cernere 34 Figure 27 Calibration Cycle Phase 1 Dried Sample Flow eene 35 Figure 28 Calibration Cycle Phase 2 Sample EIN estate EE ERAN 36 Figure 29 Typical QMA201 Calibration Certificate apgbebsetsaastghergesskesaktoA gees SNki AG eeh 41 Appendices Appendix A Technical SPESEN e cs 53
33. ase of the measurement cycle the frequency difference between the sensor and reference crystals is measured i e dry state The sample and calibration gas paths are shown in green These lines are continually purged during the initial measurement cycle SAMPLE IN SAMPLE OUT MFC Mass flow controller V1 V2 V3 Solenoid Valves och HET HE2 Heat exchanger FC1 FC2 FC3_ Flow control Figure 25 Measurement Cycle Phase 1 Dried Sample Flow Michell Instruments 33 OPERATION QMA401 User s Manual After a 30 second sampling period V1 is de energized This cuts off the dried gas supply to the sensor cell and V3 is energized connecting the sample gas red line see Figure 26 to the sensor cell for a further period of 30 seconds The reference and sample gas paths are shown in green These lines are continually purged during this second phase of the measurement cycle SAMPLE IN SAMPLE OUT MFC Mass flow controller V1 V2 V3 Solenoid Valves Och semorcd HET HED Heat exchanger FC1 FC2 FC3 Flow control Figure 26 Measurement Cycle Phase 2 Calibration Flow During this second phase of the measurement cycle the frequency difference between the reference and sensor crystals is measured again i e wet state After signal processing the measured difference in frequency between the wet and dry phases is proportional to the moisture content of the sample gas 34 97450 Issue 1 Ju
34. ation Charts detailed in Annex II of the Directive do not fall in to the requirements for CE Marking compliance with the Pressure Equipment Directive Article 3 paragraph 3 states that any product containing a pressurised fluid that does not qualify for compliance should nevertheless be constructed with Sound Engineering Practice SEP Michell Instruments attests here that its products have been designed manufactured amp tested to assure safe operation and in accordance with Sound Engineering Practices ge D 2 Recycling Policy Vi 2 Michell Instruments is concerned with the protection of the environment It is our commitment to reduce and eliminate from our operations wherever possible the use of substances which may be harmful to the environment Similarly we are increasingly using recyclable and or recycled material in our business and products wherever it is practical to do so To protect natural resources and to promote material reuse please separate batteries from other types of waste and recycle responsibly If batteries are not properly disposed of these substances can cause harm to human health and the environment The product that you have purchased may contain recyclable and or recycled parts and we will be happy to provide you with information on these components if required For further information please see the following sections D 3 WEEE Compliance Directive 2012 19 EU 4 July 2012 on Waste Electronic and Elec
35. cific sensitivity to water vapor Bulk adsorption of water vapor onto the coated crystal causes an increase in the crystals effective mass modifying its oscillation frequency in a very precise and repeatable manner The frequency change is in proportion to the water vapor pressure in the sample gas providing a direct measurement of moisture content The sorption process is fully reversible with no long term drift effect giving a highly reliable and repeatable measurement Sample Gas Path The QMA401 measurement system must be supplied with gas at the required pressure to match that of its calibration via the VCR connection on the rear of the instrument The flow is controlled automatically The sensor cell is located at the end of the sensor block and contains the sensor and reference oscillators Figure 1 shows a schematic diagram of this sampling system SAMPLE SAMPLE OUT DD Descotcoum mG Moisture generaor Mass flow controller V1 V2 V3 Solenoid Valves HET HE2 Hest exchange Figure 1 Measurement System 97450 Issue 1 July 2015 QMA401 User s Manual INTRODUCTI ON 1 4 Internal Sampling Options The QMA401 is available with 3 internal sampling configurations S1 Default option OVEN S2 Includes Zum filter and pressure regulator allowing the QMA401 to accept greater sample pressures FILTER S3 Includes Z
36. d log files are stored in the local My Documents folder C Users username Documents C Documents and Settings username Documents 48 97450 Issue 1 July 2015 QMA401 User s Manual APPLI CATION SOFTWARE 6 6 1 6 6 2 6 6 3 6 6 4 6 7 Configuring Logging Start Time Logging may be started immediately or at a user defined time in the future To start logging immediately select the Start when START is clicked option To start logging at a user defined time in the future select the Start at this date time option and enter the date and time when you wish to start logging Configuring Logging Stop Time If the Stop when STOP is clicked option is selected then the software will continue logging indefinitely until either the STOP button is clicked or the software is shut down If the Stop at this date time option is selected then the software will continue logging until the selected date and time is reached or when the STOP button is clicked or the software is shut down Starting the Log After choosing a filename and configuring logging start and stop times click the START button Viewing a Log Click the view log file button to view a log file within Windows notepad Parameters Field Calibration Analyzer parameters may be viewed and edited via this window QUA Application Software Parameters Field calibration D f D IH i He Bsp 420 troma CH Den Current li
37. ded Ambient temperature variation The QMA401 is extremely sensitive to moisture fluctuations and ambient temperature variations will affect the equilibrium conditions In a stable environment the water vapor pressure within a closed system is in equilibrium with the outside ambient If the ambient temperature increases the energy is imparted to the gas pipes and the water molecules within the wall This additional energy will upset the original equilibrium and the increased pressure water in the walls migrates in towards the drier gas stream Small molecules such as water will migrate through the pipe wall until the entire system reaches a new equilibrium It is possible to minimize this effect on a sampling system by heat tracing sample lines and insulating heating the sampling system enclosure to a stable temperature above the maximal ambient temperature It is important to control the temperature of all components of the sampling system including regulators and lines For this reason it is strongly advised to use heat traced line to eliminate this temperature change effect and measure moisture content solely related to the gas under test 32 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 9 Measurement Cycle At the beginning of a measurement cycle V1 is energized This allows the dried sample gas to be routed to the sensor cell for a period of 30 seconds as shown by the red line in Figure 25 During this first ph
38. e HET HE2 FC1 FC2 FC3 Figure 28 Calibration Cycle Phase 2 Sample Flow The analyzer will run though a number of settling cycles to ensure the internal sample system is fully equilibrated with the calibration gas before beginning to collect calibration data After the system has carried out the selected number of settling cycles it begins the calibration cycles During these cycles the difference between the calibration reference gas and the dried gas is measured As the moisture content of the calibration gas is known the difference between this and the measured value is equal to the error in the system The QMA401 stores this measured calibration value and automatically compensates subsequent sample readings for any offset that may have occurred to the factory calibration curve 36 97450 Issue 1 July 2015 QMA401 User s Manual MAI NTENANCE 4 MAI NTENANCE Gas line connections to the measurement system must be isolated and de pressurized before any work commences Any loose or disturbed pipework or couplings must be leak tested The design of the QMA401 and measurement system is such that minimal maintenance is required However if a fault does occur with the system that is not covered within this manual please contact Michell Instruments see contact information at www michell com or your local representative Any maintenance of this product should only be conducted by suitably trained personnel Any unau
39. e pressurized air line this effect is called transpiration Over a long pipe run water will inevitably migrate into any line even through the most resistant materials Moisture on the outlet of the line will be different than on the inlet The best material to resist transpiration is 316L stainless steel Michell Instruments 31 OPERATION QMA401 User s Manual It is also important to note that temperature changes can increase the tendency of these materials to affect the humidity of the surrounding air With a given surface and gas composition increases of line pressure and decreases in temperature increase surface adsorption Pipe material surface finish Components with a smooth mechanical finish are always preferred Do not confuse the term electro polished with a mechanical polishing procedure Electro polishing normally is preceded by mechanical polishing to achieve the best results If a choice of finish is available for the materials dictated by the process or sample system select the smoothest for faster response e Pipe diameter The larger the sampling pipe diameter the more exposed the gas will be to the pipe wall Therefore it is recommended to use the smallest possible pipe diameter to minimize the previously mentioned effects This must be balance with the desired response speed Depending on the configuration 1 8 pipe diameter is recommended Please contact Michell Instruments if further recommendations are nee
40. e interval and hour settings Interval Days Frequency of automatic calibrations in days The hour in the day at which an automatic calibration will start 20 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 6 5 Monitor Screen Moisture Content ppm 50 00 RefSolenoid BEI 1000 00 Sample Solenoid 100 00 Beat Freq Delta Freq Internal Cal Solenoid System Temperature Dryer vol remaining 96 E 1 0 EJ v Flow Rate ml min MG remaining days 00 Sensor Pressure barg EFT SCF 0 0 Ext Pressure barg MGV ppm Figure 15 Monitor Screen Moisture Content Live moisture reading in ppm the two crystals Ext pressure Live process pressure reading Table 4 Monitor Screen Parameters Michell Instruments 21 OPERATION QMA401 User s Manual 3 7 Settings Menu MODBUS ETHERNET ABOUT Figure 16 Settings Menu Screen Allows access to the following sub menus to change instrument settings e Measurement Outputs HMI RTC e Modbus e Ethernet e About 22 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 7 1 Measurement Screen Measurement D Carrier Gas Pressure Input DP Calculation Measurement H Carrier Gas Pressure Input DP Calculation Fixed 1 00 Pressure Unit Pressure Input External Ext 4mA Ext 20mA Figure 17 Measurement Screen Michell Instruments 23 OPERATION QMA4
41. e year will never be exceeded For these reasons we are neither required by obligation for registration nor for the creation of material safety data sheets MSDS for our products Our continued review of the SVHC Candidate List and latest additions is to ensure we remain compliant Michell Instruments maintains a hazardous material register in which MSDS data sheets are collated and we will check that our suppliers will comply to REACH requirements for all materials and substances we use in the processes of our manufacturing In the unlikely event that any chemicals of concern appear in our products in quantities greater than 0 1 of total mass per product we will immediately inform you by correspondence according to the REACH Article 33 requirements Our current appraisal is however that we do not expect or foresee such an incidence January 2013 D 7 Return Policy If a Michell Instruments product malfunctions within the warranty period the following procedure must be completed 1 Notify a Michell Instruments distributor giving full details of the problem the model variant and the serial number of the product 2 Ifthe nature of the problem indicates the need for factory service then the instrument should be returned to Michell Instruments carriage prepaid preferably in the original packaging with a full description of the fault and the customer contact information 3 Upon receipt Michell Instruments will evaluate the p
42. ectrical Requirements The QMA401 requires the following electrical supply 85 to 264 V AC 47 63Hz 250 VA max H Alarm outputs comprise four sets of changeover relay contacts one set for INTERNAL FAULTS and three sets for PROCESS alarms All contacts are rated at 24 V 1A NOTE THIS RATING MUST NOT BE EXCEEDED Fuse This product is provided with an internally mounted fuse A replacement fuse can be obtained by contacting Michell Instruments technical support Fuse rating 5 x 20mm 3 A anti surge to IEC 60127 2 Power Connection DANGER Shock mick The product is provided with an IEC C13 socket on the rear panel for mains power input This equipment must be supplied with a voltage between the range of 85 to 264 V AC 47 63Hz maximum required power is 140 W Figure 3 Power Connection Michell Instruments 5 I NSTALLATI ON QMA401 User s Manual 2 4 Rear Panel Connections DESICCANT DRYER FITTED BEHIND THIS PANEL FOR REMOVAL INSTALLATI ON REFER TO USER MANUAL Alarms 3 amp 4 Figure 4 Rear Panel Connections 6 97450 Issue 1 July 2015 QMA401 User s Manual I NSTALLATI ON 2 5 Pressure Safety WARNI NG This product is used in conjunction with pressurized gases Observe pressurized gas handling precautions WARNI NG Pressurized gas is dangerous and should only handled by suitably trained personnel DO NOT permit pressures greater than the specified safe working pressure to
43. em to purged with the sample gas 10 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 2 1 Analyzer Set Up During the period when the oven is heating to set point all functions except for HMI adjustments are disabled until the oven has reached its operating temperature Access the Settings menu to adjust the following parameters before operating the analyzer for the first time Temperature and pressure units Carrier gas and pressure input e Alarm configuration e Analog output configuration e Field calibration parameters D Real time clock Upon completion of oven heating the Main Screen will appear showing the default parameters and units example shown below Parameter BS ame d 66 9 Cell Pressure H20 mg m WVP Pa S t ADP C 000 H20 Ibs MMscf Inst Mode Calibration Internal Alarms Next Measurement 0m B STATUS LOGGING MONITOR Figure 6 Typical Display Using the inlet pressure regulator adjust the sample pressure until the reading on the internal sensor pressure readout matches the value on the calibration certificate The pressure at the outlet should be atmospheric unless otherwise stated on the calibration certificate Michell Instruments 11 OPERATION QMA401 User s Manual 3 3 Menu Structure LARGE DISPLAY PARAMETER 1 LARGE DISPLAY MAIN SCREEN PARAMETER 2 FULL SCREEN FLOW CELL PRESSURE EXT PRESSURE CAL VALUE EE BEAT FREQUENCY ppmV VALUE LOG INTE
44. esentation IEEE 754 single precision floating point format This format is Big Ended which means that the high byte is at a lower address in memory than the Lo byte and is represented as such in the register memory map The IEEE 754 format is shown below Bit31 Bits30to23 Bits 22 to 0 Sign bit Exponent Field mantissa 0 Has a 127 bias value Decimal representation of 1 binary Where 1 0 lt value lt 20 Examples of floating point to HEX are shown below 1 10 3 sign bit 0 Exponent 3 therefore exponent field 127 3 130 and bits 30 to 23 10000010 The mantissa 1 2875 which in binary representation 1 01001001 1001 1001 1001 101 Michell Instruments 63 APPENDIX B QMA401 User s Manual Adjusting the mantissa for the exponent moves the decimal point to the right if positive and to the left if negative As the exponent is 3 then the mantissa becomes 1010 0100 1100 1100 1100 1 101 therefore 1010 1x23 0x22 1x21 0x20 10 and 0100 1100 1100 1100 1101 0x2 1 1x2 2 1x2 20 0 3 0100 0001 0010 0100 1100 1100 1100 1101 4124CCCD Therefore the word value Consequently hi word 4124 and lo word CCCD 2 0 0000045 sign bit Exponent 18 therefore exponent field 127 18 109 and bits 30 to 23 01101101 The mantissa 1 179648 which in binary representation 1 00101101111111010110101 i e 1x2 18 1x2 21 1x2 23 etc
45. ge of production to ensure that the materials of construction manufacturing calibration and final test procedures meet the requirements laid down by our BSI approved Quality System Please contact Michell Instruments www michell com if the product does not arrive in perfect working order D 10 FCC EMC Requirements for North America This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference 2 This device must accept any interference including interference that may cause undesired operation This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the user manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense This product must be operated as per the operating instructions provided Do not make any alterations or modifications to the product Any unauthorized alterations or modifications made to this product may require
46. gm 2000ppm with mole weight of 1 81 8 mgm 2000ppm with mol weight of 200 16359 9mgm Pressure All pressure values based on 0 3000psig except mmHg which is limited by 16bit register size http www engineeringtoolbox com pressure units converter d_569 html B 2 Gases for Gas Correction Values Gases for gas correction values indexed 0 to 23 If a USER gas is selected then the instrument will use the gas correction values that are set in the respective registers 38 39 and 40 for the Flow correction and at registers 41 42 and 43 for the molecular weights 0 Air Mixture 1 Ar Argon 2 CH4 Methane 3 C2H2 Ethyne 4 C2H4 Ethelyne 5 C2H6 Ethane 6 C3H6 Propylene 7 C3H8 Propane 8 C4H10 Butane 9 CO Carbon Monoxide 10 CO2 Carbon Dioxide 11 H2 Hydrogen 12 He Helium 13 Kr Krypton 14 N2 Nitrogen 15 Ne Neon 16 NH3 Ammonia 17 NO Nitrogen Oxide 18 N20 Nitrous Oxide 19 O2 Oxygen 20 XE Xenon 21 UserGas1 22 UserGas2 23 UserGas3 70 97450 Issue 1 July 2015 QMA401 User s Manual APPENDIX C Appendix C EU Declaration of Conformity Michell Instruments 71 APPENDIX C QMA401 User s Manual Appendix C EU Declaration of Conformity EU Declaration of Conformity MICHELL Manufacturer Michell Instruments Limited 48 Lancaster Way Business Park Ely Cambridgeshire CB6 3NW UK We declare under our sole responsibility
47. gt 4000 counts 0 checked on startup 3 14 1 15 8000 Internal Moisture Generator due for service or replacement gt 1030days Fault selection mask in Register 9 allows user to set which condition s trigger the fault relay alarm Michell Instruments 65 APPENDIX B QMA401 User s Manual Register Configuration P1 Next Calibration Configuration 15 14 13 12 11 109 89 8 7z 6 5 4 3 2 1 0 MA TE j DH MG fac ac ac ac AC AC AC AC Manual or Auto MA I nternal or External 1E 0 Manual 0 Internal 1 Auto 1 External Data Hold DH Data Hold Additional Cycles AC 0 off 0 to 240 cycles 1 on Register Configuration P2 Next Calibration Configuration I ntervals between cal 6 5 4 3 2 1 90 Register Configuration Q Various Parameters High Byte and Low Byte 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MFC Span in ml m MS 0 to 2000 ml m 0 to 23 Gases see Appendix B2 for details Register Configuration T Instrument Setup and Command Register Regsiter 198 Writing relevant number to this register initiates associated setting calibration or test function Means only for Michel Factory use Put is setup mode first and then after test put back into measurement mode 2 Set Cell Pressure 4 mA ADC Value 3 Set Cell Pressure 20 mA ADC Value 4 Set Ext Pressure 4 mA ADC Value 5 Set Ext Pressure 20 mA ADC Value 6 Send Test
48. he internal alarm sue a System Temperature Oven Temperature Flow Output 1 Cell Pressure fs Output2 External Pressure Oscillator Comms Calibration Value f amp Ethernet Comms Beat Frequency Desiccant Dryer ppm Value Moisture Generator Figure 11 Status Screen Displays the state of the internal alarm associated with each of the parameters above indicated by the following icons 16 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 6 2 Logging Screen Controls logging to the SD card Logging D Log Interval Interval Units Status Stopped Filename START gt Figure 12 Logging Screen Description Frequency of recording data to the log file Available Options Cycles Seconds Displays status information related to logging e g SD card full Filename Automatically generated filename based on current time and date The SD card should be formatted as FAT32 Frost Point 66 9 Cell Pressure 3 0 barg 1 H20 mg m SE SD card 2 WVPPa ADP C N slot 3 H20lbs MMscf Inst Mode Calibration 4 Internal Alarms Next Measurement Om Michell Instruments 17 OPERATION QMA401 User s Manual 3 6 3 Alarm Screen Alarms q Alarm 1 P Clear Latch Parameter H20 ppm Latch Figure 13 Alarm Screen Parameter The left and right arrow keys are used to toggle through the different Alarm Selector alarms available Available Options Alarm 1 Alarm 2 Alarm
49. io hazardous materials For most applications involving solvents acidic basic flammable or toxic gases a simple purge with dry gas dew point lt 30 C over 24 hours should be sufficient to decontaminate the unit prior to return Work will not be carried out on any unit that does not have a completed decontamination declaration Decontamination Declaration declare that the information above is true and complete to the best of my knowledge and it is safe for Michell personnel to service or repair the returned instrument ee ee CELL MICHELL F0121 Issue 2 December 2011 Instruments Michell Instruments 79 MICHELL Instruments http www michell com
50. ion for Shipping and Packing For shipping purposes the instrument should be packed into its original carton the latter providing the recommended degree of protection during transit To prepare the instrument for shipping proceed as follows 1 Switch off the instrument isolate the power supply and remove the power supply cable 2 Remove the analog connector and alarm output connectors 3 Isolate the incoming sample line and remove the connections to the GAS IN and GAS OUT ports 4 Pack the instrument in its original case by first fitting the end packing and lowering the instrument into the carton Place any accessories being returned in the accessories box and place in the carton last 5 Create a packing list detailing all equipment contained in the box place it inside the box and seal the box Ideally for extra security the box should be banded Michell Instruments 51 APPENDIX A QMA401 User s Manual Appendix A Technical Specifications 52 97450 Issue 1 July 2015 QMA401 User s Manual APPENDIX A Appendix A Technical Specification Performance Measurement Technology Fast Response Quartz Crystal Microbalance Calibrated range 0 1 700 ppm Bande Indication to 2000 ppm Acura 10 of reading from 1 to 2000 ppm E 0 1 ppm between 0 1 amp 1 ppm d 5 of the reading from 1 to 2000 ppm Repeatability 0 1 ppm between 0 1 amp 1 ppm Detection Limit 0 1 ppm Available Units ppm
51. leak stops If the leak cannot be stopped by tightening the coupling unscrew the locking nut 7 and remove the coupling from the instrument Examine the ends of the coupling to check that the surfaces are not damaged and then fit a new gasket 8 re connect and re test Michell Instruments 9 OPERATION QMA401 User s Manual 3 3 1 3 2 OPERATION This section describes both the general operation of the analyzer and the method of setting up and changing the default parameters if this should become necessary Prior to operation the instrument must have been connected to the correct electrical power supply and the relevant analog and alarm outputs connected to external systems as required and as described in Section 2 The instrument must also have been installed as detailed in Section 2 and connected to a sample gas supply that is representative of the monitored process General Operational Information Operation of the QMA401 Trace Moisture Analyzer is completely automated and once set up requires little or no operator intervention First Time Operation When the instrument is switched on an Initializing overlay will be shown while the menu system loads m QMA401 Trace Moisture Analyzer Initializing After initialization is complete the following display will appear Oven heating to set point please wait The heating period lasts about an hour allowing time for the internal sampling syst
52. limit for the corresponding output Toggles the signal type of the output Output Type Available Options 1 5 V 4 20 mA Table 6 Outputs Screen Parameters Michell Instruments 25 OPERATION QMA401 User s Manual 3 7 3 HMI Screen HMI Language English Temperature Unit NC Chart Period 30 mins Pressure Unit barg Brightness Flow Unit ml min Figure 19 HMI Screen Toggles through the different languages available Selects the time scale of the chart Chart Period Available Options 5 mins 30 mins 1 hr 5 hrs 10 hrs 24 hrs Bette Sets the screen brightness level in 9 Available Options 5 10096 s Toggles through displayed temperature units Selects the units in which the pressure measurements Pressure Unit are displayed Available Options barg bara psig psia MPa mmHg Selects the flow units Available Options ml min sccm min Table 7 HMI Setup Screen Parameters 26 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 7 4 Real Time Clock Screen z E Day Hour Month Minute Year Save Date Yes Save Time Live Date Value 04 02 2015 LiveTime 12 44 Figure 20 Real Time Clock Screen Day Month Year Sets the current date for the real time clock Hour Minute Sets the current time for the real time clock Saves the updated date Saves the updated time Table 8 Real Time Clock Screen Parameters Michell Instruments 27 OPERATION QMA401 User s Manual 3 7 5 ModB
53. local Michell Instruments office or representative for further details www michell com Repair and Maintenance Apart from user replaceable components required for routine operational maintenance described above the analyzer must only be maintained either by the manufacturer or an accredited service agent Refer to www michell com for details of Michell Instruments worldwide offices contact information viii 97450 Issue 1 July 2015 Abbreviations QMA401 User s Manual The following abbreviations are used in this manual A AC atm bara barg ec oF EU hr Hz IEC IP ml min mg m Ibs MMscf mA mg Nm ml min mins mmHg Pa ppm ppm psia psig RH RS485 232 RTC RTU SD UART USB V A Q ampere alternating current pressure unit atmosphere pressure unit 100 kP or 0 987 atm absolute pressure unit 100 kP or 0 987 atm gauge degrees Celsius degrees Fahrenheit European Union hour Hertz International Electrotechnical Commission Internet protocol milliliters per minute milligrams per cubic meter pounds per million standard cubic feet milliampere milligrams per normal cubic meter milliliters per minute minutes millimeter of mercury pascal parts per million by volume parts per million by weight pound s per square inch absolute pound s per square inch gauge relative humidity standards defining the electrical characteristics of drivers amp receivers re
54. ly 2015 QMA401 User s Manual OPERATION 3 10 Calibration Cycle To maintain the precision of the analyzer the unit can self calibrate and adjust its internal reference table based on the result This is achieved as follows An internal moisture generator uses a permeation tube to generate a nominal moisture content of 0 5 5 or 50 ppm depending on what was specified at the time of order The calibration is carried out in a two phase cycle Initially V1 is energized causing the dried sample gas to be routed to the sensor cell for a period of 30 seconds as shown by the red line in Figure 27 SAMPLE IN SAMPLE OUT MFC Mass flow controller V1 V2 V3 Solenoid Valves QCH HE1 HE2 Heat exchanger FC1 FC2 FC3_ Flow control Figure 27 Calibration Cycle Phase 1 Dried Sample Flow Michell Instruments 35 OPERATION QMA401 User s Manual At the close of this 30 second sampling period V1 is de energized and V2 is energized so that the reference gas from the moisture generator is now routed to the sensor cell This is the beginning of phase 2 see Figure 28 The calibration reference gas is measured for a further 30 seconds until V2 is de energized and the cycle begins again The inactive sample paths are continually purged during each phase see green flow paths on Figures 25 and 26 SAMPLE IN SAMPLE OUT MFC Mass flow controller V1 V2 V3 Solenoid Valves QCH Je
55. o hide When ticked selecting plot mode will restore the X and Y axis Restore on plot mode to the state before they were modified after sizing zooming or scrolling Select either autoscale all data or manual scaling of the Y axis Selecting manual scaling will show a min and max input text box Update rate Allows the user change the update rate of the chart Reset chart Clears all chart data Y axis scale QHA Application Software Chart Options Michell Instruments 47 APPLICATION SOFTWARE QMA401 User s Manual 6 6 Data Logging Click the Data Logging button on the Main Window to launch the Data Logging Setup Window QMA Application Software Logging Current logging status NOT LOGGING Logging setup Filename lt none gt a Auto generate Start Start when START is clicked e O Start at this date time baesrzeg 120000 AM Stop Stop when STOP is clicked O Stop at this date time Rorsras a 12 00 00 AM 3 5 seconds Choosing a log file filename Choose a log file manually by clicking the button Click the Auto generate button to generate a filename based on the current date and time An auto generated log file filename has the following format QMA dd mm yy hh mm ss log where dd date mm month yy year hh hour 24 hr mm minutes and ss seconds Example QMA 15 12 14 13 41 55 log which is 15th December 2014 at 1 41 55 pm Auto generate
56. or a period of 12 months the goods and all their component parts where applicable are free from any defects in design workmanship construction or materials The Supplier warrants that the services undertaken shall be performed using reasonable skill and care and be of a quality conforming to generally accepted industry standards and practices Except as expressly stated all warranties whether express or implied by operation of law or otherwise are hereby excluded in relation to the goods and services to be provided by the Supplier All warranty services are provided on a return to base basis Any transportation costs for the return of a warranty claim shall reside with the Customer Michell Instruments 75 APPENDIX D QMA401 User s Manual D 6 REACH Compliance Regulation EC No 1907 2006 Registration Evaluation Authorisation and Restriction of Chemicals REACH Michell Instruments is a manufacturer of moisture measurement and gas analysis instrumentation and is a downstream user of chemicals as described by the EU Council Directive 76 769 EEC The products we supply are not raw chemical products goods Under normal and reasonably foreseeable circumstances of application the goods supplied to you shall not contain or release any prohibited chemicals No listed SVHC Substances of Very High Concern appear within products manufactured by Michell Instruments Therefore the 0 1 mass per product or total usage of 1 tonn
57. pling system if supplied must remain isolated from the process gas and the enclosure should remain closed to ensure ingress protection is maintained e If supplied the sampling system enclosure heating thermostat circuit should be operated if the climatic temperature might fall below 5 C 41 F e At time of start up the procedures contained in the user manuals for both analyzer and sampling system must be followed If the product was previously in service operation then the following precautions should be followed before storage e Upon isolation from the gas sample the entire system should be purged with a dry nitrogen gas before powering down of the analyzer e All connections and ports gas and electrical to the analyzer or sample system if provided should be capped e If the product is not removed from its location the electrical grounding of the analyzer should remain in place 4 97450 Issue 1 July 2015 QMA401 User s Manual I NSTALLATI ON 2 2 2 3 Unpacking the I nstrument Open the crate and carefully unpack the instrument NOTE Retain the packaging in case the instrument is returned for factory calibration or service The accessories box should contain the following items e Traceable calibration certificate e SD memory storage card e USB communications cable e IEC power cable e Application software CD Users manual If there are any shortages please notify the supplier immediately El
58. rial Number 0060 Primary delta f Hz 8564 14 MG Moisture Level ppm 7 5 Measured Moisture Reference ppm Content ppm Comments Approved Signatory Date 3 09 2015 Michell Instruments Ltd www michell com Figure 29 Typical QMA401 Calibration Certificate Michell Instruments 41 APPLICATION SOFTWARE QMA401 User s Manual 6 APPLICATION SOFTWARE OVERVIEW With the QMA Application Software you can e Read and edit all main analyzer parameters e Chart and log all main analyzer parameters e Perform a calibration H Reset the analyzer to factory defaults Communication between the application software and analyzer is via Modbus RTU over RS485 6 1 System Requirements For the best software performance the host computer should meet the following minimum requirements Windows XP Windows VISTA Windows 7 32 bit or 64 bit Windows 8 32 bit or 64 bit PU Intel Pentium ITI 500 MHz recommended Pentium 4 1 6 GHz or Pentium M 1 0 GHz or Athlon 1 2 GHz or higher 512 MB recommended 1 0 GB Disk space Application 3 MB 6 2 System Connection If using an RS485 connection connect the communications cable and RS485 to RS232 converter to a spare serial port or serial to USB adaptor on the host computer If using USB connect the analyzer directly to the host computer using a USB cable after installing the application software If using Modbus TCP connect the analyzer to a LAN using an Ethernet c
59. roduct to determine the cause of the malfunction Then one of the following courses of action will be taken H If the fault is covered under the terms of the warranty the instrument will be repaired at no cost to the owner and returned e If Michell Instruments determines that the fault is not covered under the terms of the warranty or if the warranty has expired an estimate for the cost of the repairs at standard rates will be provided Upon receipt of the owner s approval to proceed the product will be repaired and returned 76 97450 Issue 1 July 2015 QMA401 User s Manual APPENDIX D D 8 Calibration Facilities Michell Instruments calibration facilities are among the most sophisticated in the world and have been recognized for their excellence Traceability to the National Physical Laboratory NPL UK is achieved through our UKAS Accreditation Number 0179 This covers dew point over the range 90 to 90 C 130 to 194 F and also Relative Humidity Dew point calibrations are also traceable to the National Institute for Standards amp Technology NIST USA over the range 75 to 20 C 103 to 68 F NOTE Standard traceable calibration certificates for instruments and sensors are not issued under our UKAS accreditation D 9 Manufacturing Quality Michell Instruments is registered with the British Standards Institute for Quality Assurance to BS EN ISO 9001 2008 Rigorous procedures are performed at every sta
60. s On Off If data hold is selected the user can select how many cycles after the calibration the last measured value is held for Toggles between an external calibration source or the internal calibration source If an external calibration source is selected the external reference moisture must be entered in the ext ref setting Cal Source Available Options External Internal External Cal Source when this is chosen Ext Ref will need to be entered to show the ppm value of the external moisture reference Internal Cal Source when this is chosen then the Cal Method can be set to Manual or Automatic Period of time for the QMA401 to stabilize to the new moisture level as presented by the internal moist generator or external ppm value before conducting the actual calibration cycles Cal Cycles Sets how many calibration cycles are carried out Table 3 Calibration Screen Parameters Settling Cycles Toggles between manual calibration or automatic calibration mode Available Options Automatic Manual Manual Cal Method if this is chosen the Start button must be pressed in order to initiate the calibration procedure If this method is chosen then both the Interval and Hour selection boxes are hidden and a Start button is displayed Automatic Cal Method if this is chosen then the following parameters will need to be set and will be displayed on the screen Calibration will Cal Method begin on the time selected using th
61. t cycle and output alarm updates are re started 67 Reset Ram Log Buffer and Stats to zeros 68 Set Ethernet Settings to values in Registers 245 to 250 Command not allowed via modbus 70 Reset Dryer Service flag and ppm sum register to 0 0ppm 71 Reset Moist Generator Service flag and hours used counter to Ohr 74 Clear Alarm1 Latch 75 Clear Alarm2 Latch Michell Instruments 67 APPENDIX B QMA401 User s Manual 76 Clear Alarm3 Latch 77 Clear Alarm4 Fault Latch Register Configuration U Internal Logging Configuration Service I nterval Days 15114 1 33 12 3 19 9 8 7 6 5 4 93 2 1 0 Lr f 1 RE RL RE RC OP OP OP OP DeltaF and ppm Log Interval in cycles Ram Buffer Log parameter RL DP Range is 1 to 15 cycles for CAL use def 1 0000 Moisture PPMv def 0001 Moisture PPMw 0010 Moisture MGM3 0011 Moisture PA wvp 0100 Moisture LBMMSCF 0101 Dew point 1111 No logging Register Configuration U Internal Logging Configuration Service I nterval Days i5 14 13 12 11 109 9 8 7 6 5 4 3 2 1 0 Dryer Capacity or Used DC in ppm Moisture Gen Capacity or Used ML in Days 0 to 255 x 100 000 0 to 255 x 10 represents 0 to 25 500 000 in 100 000 steps Represents 0 to 2 550 days 61200 hours in 10 day steps Register Configuration W Signal Filter Settings 15 14 13 32 11 10 9 8 7 6 5 4 3 2 1 0 1
62. tasasatiiundsimsmsainaniiutinamesasdoniainastnimauaisdolacsianeiansts 3 2 INSTALLATION EE 4 21 Analyzer Storage EE EE 4 22 iert Wiele THe Inst UME E 5 2 3 Electrical ReguirementS E 5 2d Rear Panel eene 6 25 Pressure EEN 7 2 6 E kee 8 3 OPERATION WEE 10 3 1 General Operational Jegen 10 3 2 First Time ee e nie 10 345 Analyzer Se 8o c 11 3 3 i i Nou 12 3 4 Description of Measured Parameters uie e ean enda khn i nun tho ny PRSE n ERR A aa RRR UA 13 3 5 En ee 14 3 5 1 L rde Display MOd ME c P 15 3 5 2 FO Seren Sana 15 36 Main Screen Sub MENUS nee 16 3 6 1 irs uds EEN 16 3 6 2 LOJIMI SEEM meee ener ar er nee eerie re renee eer armen E 17 3 6 3 Alarm Sree EE 18 3 6 4 Calibration Scree EE 19 3 6 5 Monitor TEE 21 I SUIS WEE 22 Jul Wl EI DE 23 3 7 2 EE 25 3 7 3 HMI SCICCW E 26 3 7 4 Real TIME Clock E 27 3 7 5 le ER n nenne 28 3 7 6 Ethernet EE 28 Sud BOUE SE EN 29 38 Samping Guideline ERR I T In 30 29 Meas rement Eeer 33 310 Calibration Cycle PTT 35 e MAINTENANCE nee 37 4 1 Removal and Replacement of the Power Supply Fuse ANER 38 4 2 Removal and Replacement of the Desiccant Column eere 38 iv 97450 Issue 1 July 2015 QMA401 User s Manual 5 CALIBRATION EE 40 Sl TICS EE 40 6 APPLICATION SOFTWARE OVERVIEW swnscccsarcacsamncncsswensosscactestaracseinucoesstedcnecncacie 42 6 1 System e EE 42 0 2 System CO
63. that the product QMA401 Moisture Analyser complies with all the essential requirements of the EU directives listed below 2014 30 EU EMC Directive 2014 35 EU Low Voltage Directive LVD 2011 65 EU Restriction of Hazardous Substances Directive ROHS2 and has been designed to be in conformance with the relevant sections of the following standards or other normative documents EN61326 1 2006 Electrical equipment for measurement control and laboratory use EMC requirements Class A emissions and Industrial Locations immunity EN61010 1 2010 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements AJ Andrew M V Stokes Technical Director Date of Issue March 2015 EUD QMA401 Issue 01 72 97450 Issue 1 July 2015 QMA401 User s Manual APPENDIX D Appendix D Quality Recycling amp Warranty Information Michell Instruments 73 APPENDIX D QMA401 User s Manual Appendix D Quality Recycling amp Warranty I nformation D 1 Pressure Equipment Directive PED 97 23 EC The above Directive has been implemented in United Kingdom Law by the Pressure Equipment Regulations 1999 The Regulations require that all pressure equipment and assemblies within the scope of the Pressure Equipment Directive must be safe when placed on the market or put into service Michell Instruments products have been assessed and as referenced against the Classific
64. thorized maintenance of this product not covered by this manual could invalidate the product warranty In addition to general maintenance procedures which involve the cleaning of the Instrument e casing and display the desiccant column can be removed and replaced by the operator Michell Instruments 37 MAI NTENANCE QMA401 User s Manual 4 1 4 2 Removal and Replacement of the Power Supply Fuse The fuse can be serviced in the field by an approved Michell Instruments service technician Please consult your Michell service representative for spare or replacement parts Removal and Replacement of the Desiccant Column 1 Undo thumbscrews to remove dryer access panel 2 Remove supplied spanner wrench from the mount on the dryer access panel 3 Loosen the VCR fittings on the dryer assembly using the supplied spanner wrench 4 Disconnect the VCR fittings by hand 97450 Issue 1 July 2015 QMA401 User s Manual MAI NTENANCE 5 Remove dryer assembly 6 Fitreplacement dryer assembly following these instructions in reverse to re assemble Michell Instruments 39 CALI BRATION QMA401 User s Manual 5 1 CALI BRATION Traceability The calibration of this analyzer is traceable to national standards For this reason the analyzer can only be calibrated in an accredited e g NPL UK or NIST US standards laboratory If these facilities are not available the analyzer must be returned to
65. ton to launch the data logging setup window Pom 0 000 Oven temperstere 50 MY 59 73 Communications 2 soem 0 00 Flow rate ml m 0 00 Alarms a e e M mg m 0 00 Cell pressure Ps 0 00 States em vumm Mode MEASURE MEN wor 0 000 u mund 0 000 gene PHASE fe XMes Amoss 136 868 T OT LOGGING To configure analyzer parameters click the Parameters Field calibration button to launch the parameters window Click the Connect button to re connect with the analyzer or connect with a new analyzer Michell Instruments 45 APPLICATION SOFTWARE QMA401 User s Manual 6 5 Using the Chart Chart mode buttons The chart defaults to plot mode To change the chart mode click one of the buttons along the top of the chart described below Function Description SIZE Y Allows the user to size the Y axis ZOOM BOX Allows the user to draw a box in the data area which will zoom in on the data within the box The box is drawn from top left to bottom right OPTIONS Invokes the chart options window After using the scroll size or zoom modes changing the chart back to plot mode resets the X and Y axes 46 97450 Issue 1 July 2015 QMA401 User s Manual APPLI CATION SOFTWARE 6 5 1 Chart Options Window The Chart Options Window allows the user to configure the following chart properties Show hide senes Allows the user to show or hide data series from the chart Tick to show untick t
66. trical Equipment WEEE The Waste Electronic and Electrical Equipment WEEE Directive places rules upon European manufacturers of electrical and electronic equipment The directives aim is to reduce the impact that electronic devices have on the environment Michell Instruments is in full compliance with the WEEE Directive and is registered with an approved recycler Registration No WEE JB0235YW and treats the requirement of the directive and the protection of the environment with the utmost importance All Michell Instruments products are appropriately marked indicating their requirement for recycling It may be required to return certain instruments for treatment at the end of their working life Feb 2013 74 97450 Issue 1 July 2015 QMA401 User s Manual APPENDIX D D 4 RoHS2 Compliance Directive 2011 65 EU of the European Parliament and of the Council of 8 June 2011 The Restriction of Hazardous Substances RoHS Directive places rules upon European manufacturers of electrical and electronic equipment The directives aim is to reduce the impact that electronic devices have on the environment According to the EC Directive 2002 95 EC Michell Instruments products qualify as Category 9 Control and Monitoring Equipment Under the 2002 95 EC Directive Category 9 products are exempt from compliance with the Directive However the careful design of all Michell Instruments products takes into consideration the requirements of the
67. um filter pressure regulator and bypass metering valve for fast sample transport to the instrument Figure 2 Internal Sampling Options Michell Instruments 3 I NSTALLATI ON QMA401 User s Manual 2 INSTALLATION 2 1 Analyzer Storage I nstructions In order for this product to be functional upon installation it should be stored in accordance with the guidelines below e The product must be housed in a sheltered area out of direct sunlight and rain e The product should be stored to minimize the possibility of sitting in ground water e The temperature within the storage environment should be maintained between 20 to 60 C 4 to 140 F e The humidity within the storage environment must be non condensing e The storage environment must not expose the analyzer to any corrosive elements e The product may stay assembled with its sample conditioning system if supplied e All electrical and process connections should remain disconnected and capped e All protective coatings should remain in place until installation e For prolonged periods of storage the lid of the packaging crate should be removed to allow air to circulate e Any documentation supplied with the product should be removed from the packaging crate and stored elsewhere to protect its integrity For the period from installation of the product to commissioning start up the following precautions should be followed e The product and associated sam
68. us Screen EE Modus ID Protocol RS485 Figure 21 ModBus Screen Description Instrument Instrument Address Sets the instrument address using the keypad Protocol Toggles different physical layer types ge Available Options RS485 USB TCP IP Table 9 Modbus Screen Parameters 3 7 6 Ethernet Screen Ethernet H sume 0 Do 0 0 DefaultGateway 0 0 o Le Figure 22 Ethernet Screen Parameter IP Address Instrument s static IP address on the network Subnet mask Subnet mask of network that the instrument is on The default gateway of the network that the instrument is on Default gateway Table 10 Ethernet Screen Parameters 28 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION 3 7 7 About Screen ot Control Firmware Oscillator Firmware Display Firmware Instrument SN Oscillator SN Michell Instruments QMA401 Trace Moisture Analyzer x www michell com SERVICE Figure 23 About Screen Displays the instrument firmware versions and serial numbers Service Screen This screen is password protected and is only available to Michell authorized personnel To return to the Configuration Screen press the ESC key QMA401 Trace Moisture Analyzer A www michell com SERVICE Figure 24 Service Screen Michell Instruments 29 OPERATION QMA401 User s Manual 3 8 Sampling Guidelines The QMA401 Trace Moisture Analyzer is designed to operate in a flowing
69. ve values are shown in the Value now column New values may be entered in the Adjust column When a value is modified it will be shown in red and the Apply button will enable Click the Apply button to apply the modified values to the analyzer To write the PC date and time to the analyzer first click the Get PC date time button to load the values into their respective positions on the screen then click the Apply button To reset the analyzer to factory defaults press the Do it button under the Factory Defaults heading Michell Instruments 49 APPLICATION SOFTWARE QMA401 User s Manual 6 7 1 Field Calibration This window allows manual analyzer calibrations to be performed and settings for automatic calibrations configured QHA Application Soltware Field calibration PARAMETER CALIBRATION GAS Gas source INTERNAL INTERNAL Ext gas value ppm V 2 0000 2 0000 ANALOG O P HOLD Hold analog o p s during amp after cal vts vts lt Num cycles to hold analog o p s post cal 5 5 CALIBRATION TRIGGER Manual or automatic AUTOMATIC AUTOMATIC AUTOMATIC CALIBRATION Calibration interval days 6 6 y Hour of day to start calibration 24 hour n 11 NEXT CALIBRATION COUNTDOWN Days 1 Hours 19 Minutes 43 Seconds 41 RED modified value Abort Cose Start Apply 50 97450 Issue 1 July 2015 QMA401 User s Manual SHIPPING 7 SHIPPING 71 Preparat
70. very uncomplicated approach to field service the desiccant column is easy to replace via the dryer service panel on the rear of the instrument The moisture generator has an average life span of 3 years before maintenance is required Automated Calibration for Continued Reliability The QMA401 incorporates an integrated automatic calibration system for complete user confidence Periodic calibration checks of sensor performance can be initiated on demand or automatically at user defined intervals and time of day providing a verification against the calibrated moisture generator or an external reference The moisture generator at the core of this system is supplied with a calibration traceable to NPL and NIST During an internal calibration cycle the Data Hold function will prevent any interruption of dependant processes by holding the analog outputs at the same level for the duration of the calibration Integrated Sample Handling Components The QMA401 features an optional bypass arrangement to increase transport speed of the sample A pressure regulator can also be specified to increase the range of acceptable input pressure and to protect the instrument against pressure shocks Michell Instruments 1 I NTRODUCTION QMA401 User s Manual 1 2 1 3 Theory of Operation The Quartz Crystal Microbalance QCM technology for moisture measurement is based on monitoring the frequency of a hygroscopic coated quartz crystal with spe
71. work should ideally be specially designed for each application rather than adapted from that previously installed for another application Dead space in sample lines increases response time by holding water molecules which are more slowly released to the passing gas sample 30 97450 Issue 1 July 2015 QMA401 User s Manual OPERATION Remove any particulate matter or oil from the gas sample Particulate matter can damage the sensors If particulate matter such as degraded desiccant pipe scale and rust are likely to be present in the sample gas use a particulate in line filter Michell Instruments technical sales department can be contacted for advice Use high quality sample pipe fittings The sample pipework must be capable of withstanding the operating pressure of the sample line Wherever possible always use stainless steel pipework and fittings This is particularly important at low dew points since other materials e g nylon have hygroscopic characteristics and adsorb moisture on the tube walls giving rise to slower measurement response and under certain circumstances false dew points For temporary applications or where stainless steel pipework is not practicable use high quality thick walled PTFE piping which exhibits similar qualities to stainless steel In order to maximize response time always use the shortest run of pipework and the smallest bore possible taking care not to induce pressure differentials b
72. y aiming for too high a flow rate through too small a bore Michell Instruments supplies a range of precision pressure fittings suitable for use with the QMA401 instrument Contact Michell Instruments for details of the items available e Gas samples Generally if the sample gas in conjunction with water vapor is not corrosive to base metals it will be suitable for measurement by the QMA401 instrument Gases containing entrained solids should be filtered before application to the instrument Care should be taken with gas mixtures containing potentially condensable components in addition to water vapor e g oil to ensure that only water vapor is present in the sample Once present on the surface of the sensors oil will not dry out and will contaminate and damage them Material of construction All materials are permeable to water vapor as the water molecule is extremely small compared to the structure of solids even when compared to the crystalline structure of metals Many materials contain moisture as part of their structure particularly organic materials salts and anything which has small pores It is important to ensure that the materials used are suitable for the application If the partial water vapor pressure exerted on the outside of a compressed air line is higher than on the inside the atmospheric water vapor will naturally push through the porous medium against a dry air water vapor pressure Water will migrate into th

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