Fluke 52120A, User Manual

Page: 96 / 98

52120A
Users Manual
5-26
Table 5-13. Amplitude Verification on 120 Amp Range
6105A
Measured
Error (%)
Product
Specification
Measurement
Uncertainty
TUR
RMS Frequency
6105A
(99 %) 6100B
(99 %) 6105A 6100B
60 A DC
±
0.0300 %
±
0.0720 %
±
0.0046 % 6.5:1 16:1
100 A 57 Hz
±
0.0146 %
±
0.0216 %
±
0.0131 % 1.1:1 1.6:1
100 A 850 Hz
±
0.0146 %
±
0.0216 %
±
0.0112 % 1.3:1 1.9:1
36 A
[1]
1083 Hz
±
0.0687 %
±
0.0687 %
±
0.0185 % 4.3:1 4.3:1
36 A
[2]
2850 Hz
±
0.0687 %
±
0.0687 %
±
0.0214 % 3.8:1 3.8:1
24 A
[3]
5643 Hz
±
0.0770 %
±
0.0770 %
±
0.0193 % 4.0:1 4.0:1
[1] Fundamental 57 Hz, zero amplitude, 19
th
harmonic at 36 A
[2] Fundamental 57 Hz, zero amplitude, 50
th
harmonic at 36 A
[3] Fundamental 57 Hz, zero amplitude, 99
th
harmonic at 24 A
Verify Phase Angles at Higher Frequencies
Make sure the voltage connection scheme to the phase meter and on the 6105A are the
same (two wire or four wire connection).
Note
The specification of the Clarke-Hess 6000 has a specification that is wider
than the specification for the Product below 180 Hz.
1. Set the 6105A voltage output to 23 V on the 23 V range.
2. Connect the 6105A output to the phase meter reference channel.
3. Connect the 2 A shunt between the 6105A and the second input to the phase meter.
4. Set the 6105A range to 1 x Ext 2A.
5. Set the current, frequency, and phase angle to the values in Table 5-14.
Table 5-14. Phase Angle Verification on 2 Amp Range
6105A
Measured
Angle
Product
Specification
Measurement
Uncertainty
TUR
RMS Frequency
Phase
Angle
2 A 200 Hz 0
°
0.025
°
0.020
°
1:3
2 A 850 Hz 0
°
0.045
°
0.020
°
2.3:1
2 A 850 Hz -90
°
0.045
°
0.020
°
2.3:1
2 A 850 Hz +90
°
0.045
°
0.020
°
2.3:1
0.6 A 2907 Hz
[1]
0
°
0.325
°
0.030
°
10:1
0.4 A 5643 Hz
[2]
0
°
0.645
°
0.040
°
16:1
[1] Fundamental zero amplitude, 51
st
harmonic of 57 Hz at 0.6 A
[2] Fundamental zero amplitude, 99
th
harmonic at 0.4 A
6. Connect the 20 A shunt between the 6105A and the second input to the phase meter.
7. Set the 6105A range to 1 x Ext 20A.