Keithley 2750 Service Manual

Model 2750 Multimeter/Switch System
Service Manual
©2015, Keithley Instruments
All rights reserved.
Cleveland, Ohio, U.S.A.
Second Printing, August 2015
Document Number: 2750-902-01 Rev. B

Keithley 2750 Specifications

General

Interface	GPIB, RS-232, Ethernet
Switching Speed	Up to 500 channels/second
Maximum Voltage	300V
Operating Temperature	0°C to 50°C
Measurement Functions	DCV, ACV, DCI, ACI, 2-wire Resistance, 4-wire Resistance, Frequency, Temperature
Resolution	6.5 digits
Current	1A
Maximum Current	1A

Summary

Performance Verification

Introduction and Overview

Model 2750 Verification Procedures

Covers verification for DCV, ACV, DCI, ACI, Resistance, Dry Circuit Resistance, Temp, Frequency.

Model 7700 Verification Procedures

Covers verification for Model 7700 plug-in module functions.

Calibration

Introduction and Calibration Types

Calibration Procedures

Details comprehensive, front panel, and remote calibration steps.

Manufacturing and Model 7700 Calibration

Covers specific procedures for manufacturing and Model 7700 calibration.

Routine Maintenance

Fuse and Battery Replacement

Troubleshooting

Introduction and Repair Considerations

Front Panel and Self-Tests

Specific Troubleshooting Steps

Covers checks for display, power supply, digital circuits, signal switching, and errors.

Disassembly

Handling and Static Precautions

Disassembly and Reassembly Procedures

Step-by-step instructions for disassembling and reassembling the instrument.

Accuracy and Optimization

Accuracy Calculations

Explains how to calculate DC, AC, dBm, and dB accuracy.

Calibration Reference

Calibration Command Details

Calibration Program