Verification Of Voltage Inputs In 6 Kv Range (Transients) - Fluke 435-II Service Manual

Table 4-11. Accuracy Check of Voltage Channel N (Neutral)
Set Calibrator to
200 V, 50 Hz, OPR
400 V, 50 Hz, OPR
800 V, 50 Hz, OPR
15. Set the Calibrator to STBY.
Optional Test. Bandwidth Check of Channel N (*):
16. Set the Calibrator to 215 V, 50 Hz and OPR.
17. Now check the voltage channel N. Use the Calibrator's field edit function
(AMPL/FREQ key) to adjust the Calibrator to an Analyzer readout of 400.0 V /
215.00 V.
18. Increase the frequency to 3 kHz.
Fluke 434-II: Check for a readout of 204.2 V or more.
Fluke 435-II/437-II: Check for a readout of 204.25 V or more.
19. Set the Calibrator to STBY.

4.8.5 Verification of voltage inputs in 6 kV range (Transients)

Note: this test is not required for Fluke 434-II.
Set the Analyzer to Transients mode (Analyzer remains in 400 V, 50 Hz nominal).
Press MENU, press F2 – PAGE 2, select Transients, then F5 – OK.
In the START screen: Voltage Swell must be on; the other 4 functions must be off.
Then press F5 - RUN.
Accuracy Check of Channel A/L1, B/L2, C/L3:
1. To check the A/L1, B/L2, C/L3 inputs: connect the N input to Ground (See Figure 4-
3).
2. Set the Calibrator to 50 Hz, 400 V and then to OPR.
3. Check for a voltage readout V rms between 390.0 ... 410.0 V in the screen header.
4. Check the 6 kV range according to the table below.
Table 4-12. Accuracy Check of Voltage Channels A/L1, B/L2, C/L3
Set Calibrator to
400 V, 50 Hz, OPR
1000 V, 50 Hz, OPR
Readout at Voltage Channel N
Fluke 434-II: 198.0 ... 202.0 V
Fluke 435-II /437-II: 199.60 ... 200.40 V
Fluke 434-II: 398.0 ... 402.0 V
Fluke 435-II /437-II: 399.60 ... 400.40 V
Fluke 434-II: 798.0 ... 802.0 V
Fluke 435-II /437-II: 799.20 ... 800.80 V
390.0 ... 410.0 V
990.0 ... 1010 V
Performance Verification
Readout at Voltage Channels
4
4.8 Voltage Inputs
4-15