Fluke 123B/S Service Manual - Page 96

Pulse Adjust Input B, 6.4 Gain DMM Gain Volt

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123/124 Service Manual 5.6.3 Pulse Adjust Input B Proceed as follows to do the Pulse Adjust Input A calibration: 1. Press to select calibration step Pulse Adj B (CL 0660):IDLE 2. Connect the test tool to the 5500A as shown in Figure 5-5. Figure 5-5. 5500A Scope Output to Input B ST8005.WMF 3. Set the 5500A to source a 1V, 1 MHz fast rising square wave (SCOPE output, MODE edge) (rise time ≤ 1 ns, aberrations

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123/124
Service Manual
5-10
5.6.3 Pulse Adjust Input B
Proceed as follows to do the Pulse Adjust Input A calibration:
1.
Press
to select calibration step
Pulse Adj B (CL 0660):IDLE
2.
Connect the test tool to the 5500A as shown in Figure 5-5.
ST8005.WMF
Figure 5-5. 5500A Scope Output to Input B
3.
Set the 5500A to source a 1V, 1 MHz fast rising square wave (SCOPE output,
MODE edge) (rise time
≤
1 ns, aberrations <2% pp).
4.
Set the 5500A to operate (OPR).
5.
Press
to start the calibration.
6.
Wait until the display shows
Pulse Adj B (CL 0660):READY
.
7.
When you are finished, set the 5500A to Standby.
8.
Continue at Section 5.6.4.
5.6.4 Gain DMM (Gain Volt)
Warning
Dangerous voltages will be present on the calibration source
and connection cables during the following steps.
Ensure that
the calibrator is in standby mode before making any connection
between the calibrator and the test tool.
Proceed as follows to do the Gain DMM calibration.
1.
Press
to select the first calibration step in Table 5-3.
2.
Connect the test tool to the 5500A as shown in Figure 5-6.