HM 1400 TRX Total Mercury Analyser - Webshop, Gas Analysis ...

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4. Theoretical foundationsThe cooler setpoint temperature is fixed on the cooler. The PLC monitors thecontrol hysteresis within pre-programmable temperature limits. The measuringgas then passes through the condensate collector, which has the function of agas/liquid separator.The condensate produced is conveyed into a condensate tank with levelmonitoring using a hose pump. A liquid monitor with emergency shutdown forthe gas pump is installed between the cooler and the photometer.Figure 4.6: Function level of cooler and gas conditioning4.8 Other electronics, control and measuring value calculationThe control, measuring value calculation and status monitoring of themeasuring device are undertaken by the internal PLC. Use of the measuringdevice is described in Chapter Operation (page 47). All possible functions andthe function descriptions are clearly shown. Apart from the "Condensate inmonitor" error message, which instantly switches the measuring device toStandby status, the other limit value infringements cause a system shut-downafter 2 minutes. Limit value infringements mean that the measuredtemperatures, system pressure and volume flow pass outside theirprogrammed permissible ranges. Another exception is the "Condensatecontainer full" error message, which only switches the measuring device toStandby status after 12 hours. Actual, nominal and limit values as well asstatus messages can be queried on the interactive display. The event memorycan also be activated via the display. For service purposes, it is helpful to be38 HM 1400 TRX
4. Theoretical foundationsable to query all error messages with date and time in the form of a messagelist for previous operating phases.Measuring values from the Hg photometer are read into the PLC as voltagesignals. These measuring values correspond to mercury concentrations inµg/m³. With the measured system pressure and the gas temperature,correction to standard conditions is enabled by the ideal gas equation, i.e. thecalculation of the mercury concentration in a gas with a residual moisture
Page 2 and 3: Translation of original operating i
Page 4 and 5: Table of contents5.4.5 Condensate .
Page 7: 0. Foreword0 ForewordThe purpose of
Page 11 and 12: 1. General1 GeneralWe hope that our
Page 13 and 14: 1. General1.3 Limitation of liabili
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Page 18 and 19: 2. SafetyGeneral warning symbolElec
Page 20 and 21: 2. SafetySafety shoesto protect aga
Page 22 and 23: 2. Safety2.7 Hazard from chemicalsC
Page 24 and 25: 2. Safety• Knowledge of system co
Page 34 and 35: 4. Theoretical foundationsother com
Page 36 and 37: 4. Theoretical foundationsdisplay v
Page 44 and 45: 5. Installation5.4.2 Power supply (
Page 47 and 48: 6. Operation6 Operation6.1 Commissi
Page 52 and 53: 7. OperationKey functions:Special k
Page 54 and 55: 7. Operation• Menu item "PASSWORD
Page 56 and 57: 7. OperationFigure 7.4 The Main men
Page 58 and 59: 7. Operation• Menu item "Systemst
Page 60 and 61: 7. Operation• Menu item "Measurin
Page 62 and 63: 7. Operation7.4 Zero offset (automa
Page 64 and 65: 7. OperationIf the key is pressed a
Page 71 and 72: 8. Measuring device check (option)8
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Page 76 and 77: 10. Appendix:Device parameters in d
Page 78 and 79: 11. Appendix:Maintenance11 Appendix
Page 80 and 81: 11. Appendix:MaintenanceThis mainte
Page 82 and 83: 12. Appendix: Error messages and th
Page 84 and 85: 12. Appendix: Error messages and th
Page 86 and 87: 13. Order numbers for replacement a
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Designation Order no. Order no.Incl
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14. Appendix Extracts from safety d
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15. Index15 Index3-W-V 59Accidents
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16. DURAG GROUP company addresses16
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