114
• maximum peak voltage at Hi - Lo terminals supplied by the multimeter to be calibrated must not exceed
specified limits. If the test voltage is exceeded, calibrator disconnects output terminals. Overload message
is displayed on the display.
18.12.4. Frequency dependence of resistance and capacitance
Electronic simulator of resistance can be used with DC and AC test signal. Electronic simulator of capacitance
can be used in AC range from 20 Hz to 1000 Hz.
18.13. 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
18.13.1. 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 through +I - -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 resistance
(capacitance) to the output terminals; the information section of the display shows the symbol
To Next Page
Loading...
Need help?
General
