User's Manual

123
Service Manual
5-16
5.6.11 Capacitance Gain
Proceed as follows to do the Capacitance Gain calibration:
1. Press
to select calibration adjustment step Cap. Gain (CL 0960):IDLE
2. Connect the test tool to the 5500A as shown in Figure 5-9 (Section 5.6.9).
3. Set the 5500A to 500 nF.
4. Set the 5500A to operate (OPR).
5. Press
to start the calibration.
6. Wait until the display shows
Cap. Gain (CL 0960):READY.
7. Continue at Section 5.7 to save the calibration data.
5.7 Save Calibration Data and Exit
Proceed as follows to save the calibration data, and to exit the Maintenance mode:
1. Remove all test leads from the test tool inputs. Do NOT turn off the test tool!
Steps 2 and 3 are required for serial numbers below DM7000000 only.
2. Remove the PM8907 power adapter supply from the test tool.
3. Power the test tool via the power adapter input, using a 20V ± 1V, 0.5A, DC supply.
For this purpose, a special supply cable (see Figure 5-10) can be ordered; refer to
Section 8.7 for the ordering number.
+
-
+
RED
-
WHITE
Figure 5-10. 20 V Supply Cable for Calibration
CAUTION
To avoid damaging the test tool be sure to apply the polarity
and voltage level of the 20V supply voltage correctly.
4. Press
(EXIT). The test tool will display:
Calibration data is valid
Save data and EXIT maintenance?
Note
Calibration data valid indicates that the calibration adjustment procedure
is performed correctly. It does not indicate that the test tool meets the
characteristics listed in Chapter 2.