Frequency Accuracy Calibration - Keysight Technologies DAQ970A Service Manual

7 A "Calibration Step Succeeded" message indicates success; if the display
8 Repeat step 5 to step 7 for each frequency in the following table.
9 Repeat step 5 to step 8 for each current in the following table.
10 Store the new gain and flatness calibration constants (see
Table 2-3

Frequency accuracy calibration

1 Ensure that you have read the
2 Ensure that you follow the sequence listed in the
3 This procedure will measure and adjust the input signal from the calibrator
4 Select Channel 302 and configure the function in the order shown in the table
5 Apply the input signal per the input column in
Keysight DAQ970A/DAQ973A Service Guide
shows "Calibration Step Failed", check the input value, range, function, and
entered calibration value, and repeat the calibration step.
constants" on page 46).
AC current gain and flatness calibration
Input
Current Frequency
1 A
100 mA
5 kHz | 7.5 kHz |
10 mA 9.7 kHz | 10 kHz |
220 Hz | 1 kHz
1 mA
100 mA
and flatness adjustment considerations"
Sequence" on page 51.
source connected to Channel 302 (Frequency). See the connections in
test signal" on page 38.
below and enable Channel Monitor on the selected channel before each test
(see "Channel monitor"
appropriate source settling.
Function
AC current
"Test Considerations"
on page 55.
on page 50).
Calibration Procedures
"Storing calibration
Channel 321
Range
1 A
100 mA
10 mA
1 mA
100 mA
on page 47 and the
"Calibration Adjustment
Table 2-4 and allow for
2
AC filter
>3 Hz
"Gain
"Input
59