Keysight 34450A - Gain Verification

Performance Tests and Calibration 1
Performance Verification Tests
34450A Service Guide 11
Gain verification
This test checks the full- scale reading accuracy of the instrument.
Verification checks are performed only for functions and ranges with
unique gain calibration constants.
DC voltage gain verification test
1 Connect the calibrator to the front panel HI and LO input terminals
as shown in the figure below :
Short
Short
Short
Short
Short
Short
Short
Ohms 100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
100 MΩ
Q
±8 mΩ
[2]
±80 mΩ
[2]
±500 mΩ
[2]
±5 Ω
±50 Ω
±500 Ω
±5 kΩ
[1] Select 5½ digit (slow mode) measurement resolution
[2] Specifications are for 4-W or 2-W ohms function using the Null math function enabled to
eliminate lead resistance. Without Null, add 0.2 Ω additional error.
Q = Quick performance verification test points
Table 1 - 2 Zero offset verification test
Step Function
[1]
Range Quick Check Error from Nominal 1 year