M133C Electric Power/Energy Calibrator
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Operation manual
are not grounded (GndI Off). Calibrator disconnects output terminals, grounds the
current terminals and displays following message:
Grounding state of current outputs will be recovered according to the Setup Menu
automatically as soon as the voltage will drop below 280V.
Control sequence when output voltage over 100 V is selected
When output voltage over 100 V is selected, the information section of the display shows the
symbol which informs that a life-threatening voltage will be present at the output terminals. If the
output terminals are currently connected, they will be disconnected when output voltage over 100
V is selected. ON button must be pressed to reconnect the output signal to the output terminals.
After the ON button is pressed, ON LED is lit and the information section of the display shows the
symbol notifying the user about the connection of the dangerous output signal to the output
terminals.
Voltage, and frequency can be set without the outputs being disconnected. The output terminals
are automatically disconnected when changing between AC and DC ranges or when changing the
function mode.
