Fluke 125B/S Calibration Guide - Page 39

Diode Function Test, Capacitance Measurements Test, DIODE

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Industrial ScopeMeter Performance Verification 3. Set up the Calibrator: a. Supply 25 Ω b. Use the "COMP 2 wire" mode. c. Push . 4. Make sure the beeper sounds continuously. 5. On the Calibrator, supply 35 Ω. 6. Make sure the beeper does not sound. Diode Function Test To test the diode function: 1. Connect the Test Tool to the Calibrator. See Figure 9. 2. Setup the Test Tool: a. Push . b. Push  to open the INPUT A MEASUREMENTS menu. c. Select DIODE. 3. Set up the Calibrator: a. Supply 1 kΩ. b. Use the Calibrator "COMP 2 wire" mode. c. Push . 4. Verify the main reading is between 0.425 V and 0.575 V. 5. On the Calibrator, supply 1 V DC. 6. Verify the main reading is between 0.975 V and 1.025 V. Capacitance Measurements Test To test the capacitance measurement function: 1. Connect the Test Tool to the Calibrator. See Figure 9. 2. Set up the Test Tool: a. Push . b. Push  to open the INPUT A MEASUREMENTS menu. c. Select CAP. 3. Push  and  to select manual ranging. 4. For each Range and Output value in Table 11: a. Set up the Calibrator: i. Supply the Range and Output. ii. Use the Calibrator "COMP OFF" mode. iii. Push . b. Compare the Input A main reading to the limit listed in Table 11. Table 11. Input A and Input B AC Input Coupling Verification Points 0.56 nF 0.5 nF 5 nF 500 nF 0.05 μF 5 μF 0.5 μF 50 μF 5 μF 500 μF Calibrator Output 50 nF 50 nF 500 nF 500 nF 5 μF 5 μF 50 μF 50 μF 500 μF 500 μF Range 0.45 to 0.67 48.90 to 51.10 3.9 to 6.1 489.0 to 511.0 0.039 to 0.061 4.890 to 5.110 0.39 to 0.61 48.90 to 51.10 3.9 to 6.1 489.0 to 511.0 Limit 31

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Industrial ScopeMeter
Performance Verification
31
3.
Set up the Calibrator:
a.
Supply 25
Ω
b.
Use the “COMP 2 wire” mode.
c.
Push
.
4.
Make sure the beeper sounds continuously.
5.
On the Calibrator, supply 35
Ω
.
6.
Make sure the beeper does not sound.
Diode Function Test
To test the diode function:
1.
Connect the Test Tool to the Calibrator. See Figure 9.
2.
Setup the Test Tool:
a.
Push
.
b.
Push
to open the INPUT A MEASUREMENTS menu.
c.
Select
DIODE
.
3.
Set up the Calibrator:
a.
Supply 1 k
Ω.
b.
Use the Calibrator “COMP 2 wire” mode.
c.
Push
.
4.
Verify the main reading is between 0.425 V and 0.575 V.
5.
On the Calibrator, supply
1 V DC
.
6.
Verify the main reading is between 0.975 V and 1.025 V.
Capacitance Measurements Test
To test the capacitance measurement function:
1.
Connect the Test Tool to the Calibrator. See Figure 9.
2.
Set up the Test Tool:
a.
Push
.
b.
Push
to open the INPUT A MEASUREMENTS menu.
c.
Select
CAP
.
3.
Push
and
to select manual ranging.
4.
For each Range and Output value in Table 11:
a.
Set up the Calibrator:
i.
Supply the Range and Output.
ii.
Use the Calibrator “COMP OFF” mode.
iii. Push
.
b.
Compare the Input A main reading to the limit listed in Table 11.
Table 11. Input A and Input B AC Input Coupling Verification Points
Calibrator Output
Range
Limit
0.56 nF
50 nF
0.45 to 0.67
0.5 nF
50 nF
48.90 to 51.10
5 nF
500 nF
3.9 to 6.1
500 nF
500 nF
489.0 to 511.0
0.05
μ
F
5
μ
F
0.039 to 0.061
5
μ
F
5
μ
F
4.890 to 5.110
0.5
μ
F
50
μ
F
0.39 to 0.61
50
μ
F
50
μ
F
48.90 to 51.10
5
μ
F
500
μ
F
3.9 to 6.1
500
μ
F
500
μ
F
489.0 to 511.0