3 Calibration Procedures
34 Keysight 34980A Service Guide
Recommended Test Equipment
The test equipment recommended for the performance verification and
adjustment procedures is listed below. If the exact instrument is not available,
substitute calibration standards of equivalent accuracy.
A suggested alternate method would be to use the Keysight 3458A 8½-digit
Digital Multimeter to measure less accurate yet stable sources. The output value
measured from the source can be entered into the instrument as the target
calibration value.
Application Recommended Equipment Accuracy Requirements
Zero Calibration
DC Voltage
DC Current
Resistance
AC Voltage
AC Current
Frequency
None
Fluke 5700A
Fluke 5700A/ 5725A
Fluke 5700A
Fluke 5700A/ 5725A
Fluke 5700A/ 5725A
Keysight 33220A
4 -terminal all copper short
<1/5 instrument 24 hour spec
<1/5 instrument 24 hour spec
<1/5 instrument 24 hour spec
<1/5 instrument 24 hour spec
<1/5 instrument 24 hour spec
<1/5 instrument 24 hour spec
Analog Output 34951A Internal DMM <1/5 instrument 24 hour spec
Analog Output 34952A Internal DMM <1/5 instrument 24 hour spec
Thermocouple
Reference Junction
34921A with 34921T Only
J Type Calibrated
Thermocouple Triple Point Cell
± 0.1 × °C
Relay contact resistance
[1]
All switch modules
Keysight Y1131A ± 0.001Ω resolution
[1] Optional test if not using relay cycle count.