Siemens Pacemaker UM344-2 Instrukcja Użytkownika Pobierz pdf (Strona 4)

UM344-2 CONTENTS

SECTION AND TITLE PAGE

September 1995

iii

6.1.3 RTD/OHM Type Input Calibration ..............................................................................6-6

6.1.3.1 RTD/OHM Calibration Check............................................................................6-6

6.1.3.2 Current Source Calibration .................................................................................6-7

6.1.4 Thermocouple/Millivolt Type Input Calibration..............................................................6-9

6.1.4.1 Thermocouple/Millivolt Calibration Check............................................................6-9

6.1.4.2 Narrow/Wide Millivolt Calibration.....................................................................6-11

6.2 PREVENTIVE MAINTENANCE ....................................................................................6-12

6.2.1 Tool and Equipment Requirements.............................................................................6-12

6.2.2 Transmitter Exterior Inspection..................................................................................6-13

6.2.3 Transmitter Exterior Cleaning....................................................................................6-13

6.2.4 Transmitter Enclosure Interior Inspection...................................................................6-13

6.2.5 Transmitter Calibration..............................................................................................6-14

6.3 TROUBLESHOOTING....................................................................................................6-14

6.3.1 Preliminary Troubleshooting ......................................................................................6-14

6.3.2 Troubleshooting........................................................................................................6-15

6.3.2.1 Diagnostic Messages .......................................................................................6-15

6.3.2.2 Possible Transmitter Output Problems...............................................................6-19

6.3.3 Diagnosing a Defective Digital (LCD) Meter .............................................................6-22

6.3.4 Enclosure Thread Lubrication....................................................................................6-23

6.4 NON-FIELD-REPLACEABLE ITEMS ............................................................................6-23

6.5 ASSEMBLY REMOVAL AND REPLACEMENT ...........................................................6-24

6.5.1 Electronics Module Removal and Replacement...........................................................6-24

6.6 MAINTENANCE RECORDS..........................................................................................6-25

6.7 RECOMMENDED SPARE AND REPLACEMENT PARTS............................................6-25

6.8 SOFTWARE COMPATIBILITY......................................................................................6-26

6.9 RETURN SHIPMENT .....................................................................................................6-26

7.0 CIRCUIT DESCRIPTION.....................................................................................................7-1

7.1 ELECTRONICS ASSEMBLY.............................................................................................7-1

7.2 THEORY OF OPERATION................................................................................................7-3

7.2.1 Thermocouple/Millivolt Input ........................................................................................7-3

7.2.2 RTD/OHMS Input.......................................................................................................7-3

7.2.3 Signal Conversion........................................................................................................7-4

7.2.4 Communication Format................................................................................................7-4

8.0 MODEL DESIGNATION AND SPECIFICATIONS...........................................................8-1

8.1 MODEL DESIGNATION...................................................................................................8-1

8.2 ACCESSORIES .................................................................................................................8-2

8.3 SPECIFICATIONS............................................................................................................8-5

8.3.1 Mechanical................................................................................................................8-5

8.3.2 Functional and Performance........................................................................................8-5

8.3.3 Two-Wire Cable.........................................................................................................8-7

8.3.4 Sensor Inputs .............................................................................................................8-8

8.3.5 Environmental............................................................................................................8-8

8.3.6 Hazardous Area Classification.....................................................................................8-9

8.3.6.1 CSA Hazardous Locations Precautions .............................................................8-11

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