Technical data

Performance Tests and Calibration 4
34405A User’s and Service Guide 73
Gain Verification
This test checks the full- scale reading accuracy of the instrument.
Verification checks are performed only for those 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.
2 Select each function and range in the order shown below. Provide the
input shown in the table below.
3 Make a measurement and observe the result. Compare measurement
results to the appropriate test limits shown in the table. (Be certain to
allow for appropriate source settling when using the Fluke 5520A.)
[1] Select 5½- digit measurement resolution
Q = Quick performance verification test points
Table 5 DC Voltage Gain Verification Test
Input Function
[1]
Range Quick Check
Error from Nominal
1 year
100mV DC Volts 100mV ±33 µV
-100mV 100mV ±33 µV
1V 1 V Q ±0.31 mV
-1V 1 V ±0.31 mV
10V 10 V ±3.0 mV
100V 100 V Q ±30 mV
1000V 1000 V ±0.3 V
Caution: Set the calibrator output to 0V before disconnecting it from the multimeter input terminals.