Fluke 76 - Capacitance Test; Continuity Test; DC and AC Current Test

76
Service
3-12
Capacitance Test 3-19.
1. Set the UUT function switch to Ω  and connect the Decade Capacitor output to
the VΩ and COM input terminals of the UUT.
Note
To enter capacitance, press and hold the push button for 2 seconds.
2. Referring to Table 3-7, set the Decade Capacitor for the output indicated in the steps.
Verify that the UUT display reading is within the limits shown.
Table 3-7. Capacitance Test
Step
Input
Display Readings
Range Capacitance
1 100 nF open, no test leads 0 to 0.50 nF
2 1000 nF open, no test leads 0 to 0.5 n
3 1000 nF 800 nF 784.6 to 815.4 nF
4* 10 μF 1.1 μF 1.077 to 1.123 μF
* Conducting performance tests of the 400Ω, 4kΩ, 40kΩ and 10μF ranges verifies that the discrete and
integrated circuitry needed to support the other capacitance ranges are working within specifications.
Therefore, these tests indirectly verify that the meter will meet specification in the 10μF, 100μF, 1000μF,
and 10,000μF ranges.
Continuity Test 3-20.
1. Set the UUT function switch to 40Ω ( ).
2. Referring to Table 3-8, apply a short as indicated. Verify that the UUT display and
beeper indicate as shown.
Table 3-8. Continuity Test
Step Range Input Resistance Display Reading
1 400Ω short tone
2 400Ω open OL
DC and AC Current Test 3-21.
1. Set the UUT Function switch to amps.
2. Set the output of the Current Calibrator to standby and connect it to the 40 mA and
Common input terminals of the UUT.
3. Set the Current Calibrator to the output shown in Table 3-9. Verify that the UUT
display\reading is within the limits shown