Diode Test Function Test; Capacitance Measurements Test - Fluke 123 Service Manual

Fluke 123/124/125
Service Manual

3.5.18 Diode Test Function Test

Proceed as follows to test the Diode Test function :
1. Connect the test tool to the 5500A as for the previous test (see Figure 3-9).
2. Press
3. Set the 5500A to 1 kΩ. Use the 5500A "COMP 2 wire" mode. Set the 5500A to Operate
4. Observe the main reading and check to see if it is within 0.425 and 0.575V.
5. Set the 5500A to 1V DC.
6. Observe the main reading and check to see if it is within 0.975 and 1.025V.
7. When you are finished, set the 5500A to Standby.

3.5.19 Capacitance Measurements Test

Proceed as follows:
1. Connect the test tool to the 5500A as for the previous test (see Figure 3-9).
2. Select the following test tool setup:
3. Set the 5500A to the first test point in Table 3-9. Use the 5500A "COMP OFF" mode.
4. Observe the Input A main reading and check to see if it is within the range shown under
5. Continue through the test points.
6. When you are finished, set the 5500A to Standby.
3-26
to open the INPUT A MEASUREMENTS menu, and choose:
MEASURE on A: DIODE
(OPR).
Ensure that the 5500A is in Standby.
•
Press to open the INPUT A MEASUREMENTS menu, and choose:
MEASURE on A:
•
Press to select auto ranging (
•
Press to open the INPUT A MEASUREMENTS menu.
•
Fluke 123/124: press
SMOOTHING: NORMAL | ZERO REF:
The ZERO REF function is used to eliminate the capacitance of the test leads.
•
Fluke 125: press
the capacitance of the test leads.
•
Fluke 125: press
•
Fluke 125: press
SMOOTHING READING A:
Set the 5500A to Operate (OPR).
the appropriate column.
CAP
AUTO
in top of display).
to select the METER A OPTIONS MENU, and choose:
ON
to select ZERO reference. This function is used to eliminate
to select MENU
to select:
NORMAL