Keysight U2741A, Service Manual

Page: 35 / 54

Performance Test Calibration 2
U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide 21
Frequency gain verification test
Frequency configuration:
(
CONFigure:FREQuency [<range|MIN|MAX|AUTO>
[,resolution|MIN|MAX|DEF>]])
1
Select the
Frequency
function.
2
Select each range in the order based on the input voltage
and frequency indicated in
Table 2- 6 . Compare the
measurement results with the appropriate test limits
shown in the
Table 2- 6 . (Be certain to allow for
appropriate source settling.)
[1]
Select NPLC 20 digit resolution.
Q = Quick performance verification test points
Table 2-6 Frequency gain verification test
Voltage Input frequency Function
[1]
Range Quick check Error from
nominal 1 year
200 mVrms 1 kHz
Frequency
1 V Q ±0.5 Hz
200 mVrms 10 kHz 1 V ±5.0 Hz