Keithley 2750, Service Manual

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C-2 Calibration Program Model 2750 Multimeter/Switch System Service Manual
Introduction
This appendix includes a calibration program written in BASIC to help you calibrate the
Model 2750. Refer to
Section 2 for more details on calibration procedures, equipment, and
connections.
Computer hardware requirements
The following computer hardware is required to run the calibration program:
• IBM PC, AT, or compatible computer.
• Keithley KPC-488.2, KPS-488.2, or KPC-488.2AT, or CEC PC-488 IEEE-488
interface for the computer.
• Two shielded IEEE-488 connecting cables (Keithley Model 7007).
Software requirements
In order to use the calibration program, you will need the following software:
• Microsoft QBasic (supplied with MS-DOS 5.0 or later).
• MS-DOS version 5.0 or later.
• HP-style Universal Language Driver, CECHP.EXE (supplied with Keithley and
CEC interface cards listed above).
Calibration equipment
The following calibration equipment is required:
• Fluke 5700A Calibrator.
• Keithley Model 8610 Calibration Short.
• Double banana plug to BNC cables.
See Section 2 for detailed equipment information, and refer to these figures for
connections:
• Low-thermal short connections: Figure 2-1 .
• DC volts and ohms connections: Figure 2-2 .
• DC amps and AC amps connections: Figure 2-3 .
• AC volts connections: Figure 2-4 .