Capacitance Gain Low And High; Capacitance Clamp & Zero - Fluke 123 Service Manual

Fluke 123/124/125
Service Manual

4.6.8 Capacitance Gain Low and High

Proceed as follows to do the Capacitance Gain calibration:
1. Press
2. Connect the test tool to the 5500A as shown in Figure 4-9.
3. Set the 5500A to supply 250 mV DC.
4. Set the 5500A to operate (OPR).
5. Press
6. Wait until the display shows
7. Press
8. Set the 5500A to supply 50 mV DC.
9. Press
10. Wait until the display shows
11. Set the 5500A to Standby.
12. Continue at Section 4.6.9.
4.6.9 Capacitance Clamp & Zero
Proceed as follows to do the Capacitance Clamp Voltage & Zero calibration:
1. Press
2. Remove any input connection from the test tool (open inputs).
3. Press
4. Wait until the display shows
5. Continue at Section 4.6.10.
4-14
to select calibration adjustment step
Figure 4-9. Capacitance Gain Calibration Input Connections
to start the calibration.
to select calibration adjustment step
to start the calibration.
to select calibration adjustment step
to start the calibration.
The capacitance measurement clamp voltage
the capacitance ranges
Cap. Zero (CL 0950)
now.
Cap. Low (CL 0900):IDLE
Cap. Low (CL 0900):READY
Cap. High (CL 0910):IDLE
Cap High (CL 910):READY
Cap. Clamp (CL 0940):IDLE
Cap. Clamp (CL 0940),
...
Cap. Zero (CL 0953)
Cap. Zero (CL 0953): READY
.
.
and the zero of
will be calibrated
.
ST8002.WMF