Valhalla Scientific Inc. 4150ATC Level Meter
Digital Ohmmeter
Service and User Manual
Manual type:
Service and User Manual
1.81 Mbytes (1900203 Bytes)
Manual ID:
Scanned document, all readable.
Upload date:
14 April 2017


SEC T IO N I: U N PA C KIN G AND IN ST A LLA T IO N 1-1 1-2 1-3 1-4 1-5 1-6 Introduction Inspection Line Voltage/Fuse Selection Bench Use Rack Mounting Safety Precautions SEC T IO N II; SPEC IFIC A T IO N S 2-1 2-2 2-3 2-4 2-5 General Accuracy General Specifications Environmental Requirements Recommended Calibration Interval SEC T IO N III: O PTIO N A L EQ U IPM EN T 3-1 3-2 3-3 General Accessories and Options Test Leads SEC T IO N IV : FRO N T PA N EL CO N TRO LS 4-1 4-2 4-3 4-4 4-5 4-6 4-7 4-8 4-9 4-10 General P O W E R Switch R A N G E Switches ST D /T .C Switches T E M P E R A T U R E C O M PEN SA T O R Connector V O L T A G E and C U R R EN T Terminals Z E R O Control O P EN C IR C U IT V O LT A G E Switches PR IN T /SEN D Switch R E S IS T A N C E Window SEC T IO N V: R EA R PA N EL CO N NECTO RS 5-1 5-2 5-3 5-4 5-5 General Power Connector Fuseholder BCD Interface Other Interfaces SECTION VI: MANUAL OPERATION 6-1 6-2 6-3 6-4 6-5 6-6 General Connections 4100ATC and 4150ATC Operation 4165 Operation 4165-1344 Operation Temperature Compensation Figure 6-1. SEC T IO N V II:Error Sources in Resistance Measurements IN T ER FA C E O PER A TIO N 7-1 7-2 7-3 General BC D Interface Other Interfaces SEC TIO N V III: R O U T IN E M A IN TEN A N C E 8-1 8-2 • 8-3 8-4 General Required Test Equipment Calibration Procedure Periodic Maintenance SEC T IO N IX : T H EO R Y OF O PER A TIO N 9-1 9-2 9-3 9-4 9-5 9-6 9-7 Troubleshooting General Circuit Descriptions Detailed Circuit Descriptions Power Supplies Constant-Current Source Analog-to-Digital Convertor Optional Interfaces SECTIONX: SPECIALPROCEDURES 10-1 10-2 Noisy Readings Connecting to Inductive Loads DRAWINGS AND SCHEMATICS

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