Specifications

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 458A 8
1
⁄
2
-
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
[1]
4 -terminal all copper short
DC Voltage
[1]
<1/5 instrument 24 hour spec
DC Current
[1]
<1/5 instrument 24 hour spec
Resistance
[1]
<1/5 instrument 24 hour spec
AC Voltage
[1]
<1/5 instrument 24 hour spec
AC Current
[1]
<1/5 instrument 24 hour spec
Frequency
[1]
None
Fluk
e 5700A
Fl
uke 5700A/ 5725A
Fl
uke 5700A
Fluke 5700A/ 5725A
Fluke 5700A/ 5725A
Keysight 33220A
<1/5 instrument 24 hour spec
Analog Output
349
07A
Keysight 34401A
<1/5 instrument 24 hour spec
Thermocouple
Re
ference Junction
34901A
34902A
34908A
Thermistor YSI 44031 (two)
[2]
J Type Calibrated Thermocouple
Triple Point Cell
± 0.1 °C
Relay contact resistance
All switch modules
Keysight 34401A
± 0.001Ω resolution
[1] In addition to the internal DMM, these applications require an input multiplexer module.
The 34901A is recommended.
[2] Thermistor
YSI 44031 is available as Keysight part number 34308A (package of five).
4
Chapter 4 Calibration Procedures
Recommended Test Equipment
65