Fluke Biomedical 945A - Manual (Page 7)

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Read Register Decoding ............................................................................................................................................... 4-35
Data Entry (Read Only)........................................................................................................................................... 4-36
Sensitivity Select (Read Only) ................................................................................................................................. 4-36
Switch Inputs ............................................................................................................................................................ 4-37
Option Board Bus ......................................................................................................................................................... 4-38
Relay Circuit Board .......................................................................................................................................................... 4-38
Front Panel Circuit Board ............................................................................................................................................... 4-38
Circuit Description (Front Panel Circuit Board)....................................................................................................... 4-38
Power Supply..................................................................................................................................................................... 4-40
Optional Circuit Boards ................................................................................................................................................... 4-40
SECTION 5 - MAINTENANCE ............................................................................................................................ 5-1
M AINTENANCE 946A-200 ...................................................................................................................................... 5-1
R EPLACEMENT P ARTS ...................................................................................................................................... 5-1
M AINTENANCE 977-210 ......................................................................................................................................... 5-1
R EPLACEMENT P ARTS ...................................................................................................................................... 5-1
SECTION 6 - CALIBRATION .............................................................................................................................. 6-1
C ALIBRATION (I NCLUDES FACTORY C AL ., TEST , & TERMINATION PROCEDURES ) ........................................... 6-1
SECTION 7 - TROUBLESHOOTING.................................................................................................................. 7-1
T ROUBLESHOOTING .............................................................................................................................................. 7-1
Troubleshooting / Adjustments .......................................................................................................................... 7-2
Error Codes E0011 & E0012 .............................................................................................................................. 7-2
Auto-Zero Adjustment Procedure ..................................................................................................................... 7-3
Analog Output Adjustments (946A UDR) ........................................................................................................ 7-5
0 to 10 Volt, zero, and span adjust ..................................................................................................................... 7-5
4 - 20 mA Analog Output Adjustment............................................................................................................... 7-6
977-210 Detector Analog Output Adjustments................................................................................................. 7-6
APPENDIX A. - CONNECTOR DESIGNATIONS ......................................................................................... 8-1
APPENDIX B. - APPLICABLE DRAWINGS.................................................................................................. 9-1
APPENDIX C. - BILL OF MATERIALS........................................................................................................ 10-1
APPENDIX D. - COAXIAL CABLE TERMINATION INSTRUCTIONS.................................................. 11-1
APPENDIX E. - COMMUNICATIONS OPTION BOARD MANUAL....................................................... 12-1
APPENDIX F. - SUPPLEMENTAL DATA (CUSTOMER SPECIFIC)...................................................... 13-1