Manufacturing Calibration; Recommended Test Equipment; Extender Board Preparation - Keithley 2750 Service Manual

2-20 Calibration

Manufacturing calibration

The manufacturing calibration procedure is normally performed only at the factory, but
the necessary steps are included here in case the unit is repaired, and the unit requires
these calibration procedures.
NOTE

Recommended test equipment

Table 2-13
steps. In addition, you will need the calibrator
plete the comprehensive calibration steps.
Table 2-13
Recommended equipment for manufacturing calibration
Stanford Research Systems DS345 Function Generator:
1V RMS, 3Hz, ±5ppm
1V RMS, 1kHz, ±5ppm
Keithley Model 2001 or 2002 Digital Multimeter:
1V, 3Hz AC, ±0.13%
Keithley 7797 Calibration/Extender Board

Extender board preparation

Before performing manufacturing calibration, short the output HI, LO, SHI, and SLO ter-
minals of the 7797 Calibration/Extender together using clean, solid copper wires. These
connections will form a low-thermal short necessary for the manufacturing calibration
procedure. The Calibration Extender Board should then be installed in scanner Slot #1.
If the unit has been repaired, the entire comprehensive calibration procedure
should also be performed in addition to the manufacturing calibration
procedure.
summarizes the test equipment required for the manufacturing calibration
Model 2750 Multimeter/Switch System Service Manual
(Table 2-1) and signal generator to com-