SECTION E: MAINTENANCE, REPAIR, AND
CALIBRATION
E-1
General (p. 15)
E-2
Troubleshooting only by Authorised Personnel (p. 15)
E-3
Circuit Board Operation Overview (p. 15)
E-4
Ohmmeter Assemby/Dissasembly Diagram (p.16)
E-5
Block Diagram and Circuit Description (p. 17)
E-5.1 Principle of Operation
E-6 Trouble-shooting or Diagnostic Test Procedure for AMPTEC 620UK
Ohmmeter Printed Circuit Board (p.18)
E-6.1 Current Source PCB Diagnostic Routine (p. 18)
E-6.2 DVM PCB Diagnostic Routine (p. 18)
E-7
PCB Replacement Procedure (p.19)
E-8 620UK Calibration Adjustment Procedure (p.19)
E-9 Battery Compartment Design and Description (p.19)
E-10 Low Battery Indicator (p. 21)
E-11 620UK Rear Panel Diagram (stickers) (p.21)
ANNEX: INSTRUCTIONS SPECIFIC TO HAZARDOUS AREA USAGE
(P. 22)
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