MEATEST
M133C Electric Power/Energy Calibrator
Operation manual
66
7.
Perform AC/DC power test according to the table VIII. Deviations should not exceed specified
limits.
8.
Connect output voltage terminals of the calibrator to the counter. Set output voltage 5 VAC,
frequency 1 kHz.
9.
Perform frequency test according to the table IX. Deviation should not exceed specified limit.
10.
Connect input voltage terminals of calibrator’s internal multimeter to the output terminals of
the standard calibrator. Set appropriate value of frequency and DC voltage according to the
table X.
11.
Perform multimeter test in points FREQUENCY 10000Hz and 10 VDC. Deviations should
not exceed limits in the tables bellow.
Note :
Because accuracy of calibrator output is not accurate enough in all points, use
external standard counter (frequency) or multimeter (DC voltage) connected in
parallel to the output terminals to obtain exact value on the output.
12.
Connect input current terminals of calibrator’s internal multimeter to the output terminals of
the standard calibrator. Set appropriate value of DC current according to the table X.
13.
Perform multimeter test on range 20 mA DC according to the table X. Deviation should not
exceed specified limit.
14.
Connect distortion meter to the voltage output terminals of the calibrator. Set output voltage 10
VAC, frequency 1000 Hz and sin waveform.
15.
Check harmonic distortion of output signal. It should not exceed 0.05%.
If calibrator is out of limits is in some points of this test, appropriate function and range should be
recalibrated. It is not necessary to recalibrate all functions, but only this one, which does not meet
specification. See chapter Calibration mode, where recalibration procedure is described.