Keithley 2182, Руководство по обслуживанию, Страница: 31 / 120

Aborting calibration
You can abort the front panel calibration process at any time by pressing EXIT. The
instrument will then ask you to confirm your decision to abort with the following message:
ABORT CAL?
Press EXIT to abort calibration at this point, or press any other key to return to the calibration
process. Note that the Model 2182 will not respond to any remote programming commands
while the ABORT CAL? message is displayed.
Normal calibration
The calibration procedures described below are generally the only instrument calibration
required in the field. If, however, the Model 2182 has been repaired, the factory calibration
procedures described in
Factory calibration at the end of this section should be performed
instead.
Recommended calibration equipment
Table 2-2 lists the recommended equipment for the normal calibration procedures. You can
use alternate equipment as long that equipment has specifications at least four times better than
equivalent Model 2182 specifications.
Front panel calibration
The procedures for front panel calibration include:
• Preparing the Model 2182 for calibration
• Front panel short and open calibration
• DC volts calibration
• Setting calibration dates and saving calibration
• Locking out calibration
Table 2-2
Recommended normal calibration equipment
Description Manufacturer/model Specifications*
DC Calibrator Fluke 5700A 10V: ±5ppm
Low Thermal Shorting Plug Keithley 2188
Low Thermal Input Cable Keithley 2107
* 90-day total uncertainty at specified output.
2-6 Calibration