Siemens 7MF4633 - Page 5

UMSITRPDS3-1 Contents
November 2010
iii
6.2.11 Select the Displayed Input Pressure Engineering Unit..........................................6-16
6.3 LOCAL OPERATION WITHOUT A DISPLAY OR WITH ACTIVATED KEYLOCK.........6-18
6.3.1 Set Zero and Full Scale ...........................................................................................6-18
6.4 REMOTE CONFIGURATION AND OPERATION BY HART..........................................6-20
6.4.1 Process Data ...........................................................................................................6-20
6.4.2 Setting Zero and Full Scale .....................................................................................6-21
6.4.3 Blind Setting of Zero and Full Scale ........................................................................6-21
6.4.4 Zero Adjustment for Position Correction..................................................................6-21
6.4.5 Electric Damping......................................................................................................6-22
6.4.6 Fast Measured Value Acquisition (fast response mode) .........................................6-22
6.4.7 Fixed Current Output ...............................................................................................6-23
6.4.8 Fault Current............................................................................................................6-23
6.4.9 Disabling the Transmitter Magnetic Pushbuttons and Write Protection...................6-24
6.4.10 Measured Value Display........................................................................................6-25
6.4.11 Select Pressure Engineering Units........................................................................6-25
6.4.12 Display/Bargraph ...................................................................................................6-25
6.4.13 Sensor Trim ...........................................................................................................6-26
6.4.14 D/A Trim.................................................................................................................6-28
6.4.15 Transmitter Current Adjustment.............................................................................6-28
6.4.16 Factory Calibration (Manufacturer Trims) ..............................................................6-29
6.4.17 Device Information.................................................................................................6-30
6.4.18 Flow Measurement (Differential Pressure) ............................................................6-30
6.4.19 Diagnostic Functions .............................................................................................6-30
6.4.20 Simulation..............................................................................................................6-33
6.4.21 Self Test and Master Reset ...................................................................................6-34
7.0 CALIBRATION AND MAINTENANCE ..................................................................7-1
7.1 CALIBRATION .................................................................................................................7-2
7.2 PREVENTIVE MAINTENANCE........................................................................................7-3
7.2.1 Transmitter Exterior Inspection..................................................................................7-3
7.2.2 Transmitter Exterior Cleaning ....................................................................................7-3
7.2.3 Transmitter Enclosure Interior Inspection..................................................................7-4
7.2.4 Transmitter Calibration ..............................................................................................7-4
7.2.5 Impulse Piping ...........................................................................................................7-4
7.3 TROUBLESHOOTING .....................................................................................................7-5
7.3.1 Analog Output............................................................................................................7-5
7.3.2 Digital Output (Communication).................................................................................7-8
7.4 ASSEMBLY REMOVAL AND REPLACEMENT ...............................................................7-9
7.4.1 Display Assembly ....................................................................................................7-11
7.4.2 Replacing the Electronics Module ...........................................................................7-12
7.4.3 Measuring Cell Assembly Removal and Replacement............................................7-13
7.4.4 Terminal Board Assembly Removal and Replacement ...........................................7-16
7.5 NON-FIELD-REPLACEABLE ITEMS .............................................................................7-16
7.6 TRANSMITTER REPLACEMENT ..................................................................................7-17
7.7 MAINTENANCE RECORDS ..........................................................................................7-18
7.8 RECOMMENDED SPARE AND REPLACEMENT PARTS ............................................7-18
7.9 COMPATIBILITY, Revision Numbers.............................................................................7-19
8.0 CIRCUIT DESCRIPTION .......................................................................................8-1
8.1 OVERALL OPERATION...................................................................................................8-2
8.2 PRESSURE......................................................................................................................8-2
8.3 DIFFERENTIAL PRESSURE AND FLOW .......................................................................8-3
8.4 FLANGED LEVEL ............................................................................................................8-3