M-140 Multifunction Calibrator
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Operation manual v46
Generation of electric power and energy
The multifunction calibrator can generate exact value of electric power and energy. P-E function provides output
voltage at Hi - Lo terminals and output current at +I - -I terminals. Lo and -I terminals are electrically connected.
Power setting range:
0.0 VA to 2400 VA
Voltage setting range:
0.2 V to 240 V
Current setting range:
0.01 A to 10 A
Power factor setting range:
-1 to +1 (phase –90 to +90 °)
Frequency setting range:
DC, 40 Hz to 400 Hz
Control in power generation mode
•
Press “P-E” button on the calibrator and then select AC or DC mode by pressing “DC-AC” button. The display
shows set power value.
•
The display shows the following data::
*
main value of set power in selected unit of measurement VA, W, VAr
*
power factor value PF in negative polarity LA or positive polarity LE or the phase shift between the
voltage and current in °.
*
frequency, if AC power is selected
*
voltage at Hi - Lo terminals
*
current tI - -I terminals
* uncertainty of set power
•
Set desired value of power using numeric keyboard, potentiometer or cursor buttons. Output power is not yet
connected to the output terminals. The information section of the display shows the symbol which
informs about the disconnection of output terminals..
•
Connect the instrument to be calibrated to Hi - Lo and +I - -I terminals or short the +I - -I terminals.
•
Press OUTPUT button.
•
Red LED is lit above the OUTPUT terminals to indicate the connection of simulated electrical power to the
output terminals; the information section of the display shows the symbol
Desired power is connected to output terminals.
Display modes