Output Voltage Test; Short Circuit Current Test - Fluke 1550C Calibration Manual

1550C/1555
Calibration Manual

Output Voltage Test

In Table 4, the UUT output voltage is checked with various loads applied. In this
test a voltmeter with a high-voltage probe must be connected to the load resistor
to measure the UUT output voltage. Use 15 80K-6 for voltages below 6 kV.
Step
1
2
3
4
5
6
7
8
9
10
11 [1]
12 [1]
[1] 1555 only. Requires 80K-15 probe.

Short Circuit Current Test

To verify the UUT short circuit current, use the following procedure:
1. Connect an ammeter between the UUT + and - terminals.
2. Turn the UUT on and allow to startup.
3. Wait for Test Voltage to appear on the display and set the test voltage to
4. Push
5. Push
UUT
1550C
1555
12
Table 5. Output Voltage Test
Voltage Range Load Resistor
250 V 250 kΩ
250 V No Load
500 V 500 kΩ
500 V No Load
1 kV 1 MΩ
1 kV No Load
2.5 kV 2.5 MΩ
2.5 kV No Load
5 kV 5 MΩ
5 kV No Load
10 kV No Load
10 kV 10 MΩ

5000 V by pushing

and note that the ammeter reading is within the reading limits
referred to in Table 5.

to discontinue the test.
Table 6. Short Circuit Current Test
Voltage Range
5000 V
10000 V
Minimum
250 V
250 V
500 V
500 V
1000 V
1000 V
2500 V
2500 V
5000 V
5000 V
10000 V
10000 V
.
Minimum
1.20 mA
1.20 mA
Reading Limits
Maximum
275 V
275 V
550 V
550 V
1100 V
1100 V
2750 V
2750 V
5500 V
5500 V
11000 V
11000 V
Reading Limits
Maximum
1.80 mA
1.80 mA