Energy Option Calibration; Using Direct Measurement With A Frequency Meter - Fluke 6100B User Manual

Table 7-11. Voltage from Current Terminals Adjustment Points
Fundamental
Range
Frequency
(Volts)
(Hz)
57
0.25
63
57
1.5
63
57
10
63

7-31. Energy Option Calibration

The Energy option is not adjustable. The performance of the option depends on the
accuracy of the internal crystal oscillator. This may be measured and verified in two ways:

7-32. Using Direct Measurement with a Frequency Meter

Equipment required: a frequency meter with accuracy 2.5 ppm or better at the frequency
to be measured.
1. Connect the frequency meter to the Energy Pulse Out connector.
2. Use the Channel Configuration options (see "Preparing to Use the Energy Option")
to set a meter constant for the Pulse Output that will result in a known output
frequency for the total system power. The Use Internal Pull-up check box should be
enabled (checked) for most frequency meters. For example, Enable and set the 6100B
Voltage and Current to Sine 10 V rms and 1 A rms, phase angle zero, providing 10 W
rms of real power. Set the Output meter constant to 360,000 i/Wh to give an output
frequency of 1 kHz.
3. Short Current Output terminals together, and ensure nothing is connected to the
Voltage Output terminals. Select Free Run test mode, then press OPER.
4. Verify that the frequency meter reads the expected frequency ±(10 ppm - frequency
meter accuracy in ppm).
5. Terminate the test by pressing .
Harmonic Frequency
Number (Hz)
0 0
1 57
15 855
48 3024
95 5985
0 0
1 57
15 855
48 3024
95 5985
0 0
1 57
15 855
48 3024
95 5985
Output Level
Point
Setting (Volts)
DC offset 0.000
Gain 0.225
Gain 0.225
Gain 0.200
Gain 0.125
DC offset 0.000
Gain 1.350
Gain 1.350
Gain 1.200
Gain 0.750
DC offset 0.000
Gain 8.000
Gain 8.000
Gain 7.100
Gain 4.500
Calibration

Energy Option Calibration

Output
Phase Angle
Setting
(degrees)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
7-19