M133C Electric Power/Energy Calibrator
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13
Operation manual
4.
Outputs state
Window displays which phase units are connected (one phase to three phase), which
terminals are used for signal generation and also informs about output voltage higher than
50V.
Symbols displayed in window:
- warning, displayed if output voltage is higher or equal 50V.
- phase unit (channel) is connected, output is off
- phase unit (channel) is connected, output is on
- phase unit (channel) is not connected
5.
Specification
In the field specification of set-up output signal is shown. Uncertainty is related to the main
parameter. Label BUSY instead of accuracy is displayed, if calibrator is not within
specified parameters or if internal reconnection is in process. This can occur during
changing the functions, changing set parameters, switching output terminals ON and OFF.
Specification is not available in power functions „P Harmonic“ and „P Interharmonic“.
6.
Information section
The information section located in the right part of the display and displays additional
information related to the selected function:
information about the grounding method of output terminals: GndU, GndI as set up
using the menu „Calibrator“.
information about voltage terminal configuration (2-wire / 4-wire) as set up using the
menu „Calibrator“.
information about the use of 25-turn coil or 50-turn coil (COIL x50) as set up using the
menu „Calibrator“.
information about number of controlled output channels (only functions „Power Pac“
and „Energy Eac“).
7.
Meter’s information section
C.
Display softkeys
The functions of these keys change during operation (depends on actual display mode).
8
Power switch
Turns instrument AC power ON and OFF.
9
Auxiliary input
Auxiliary input terminals for energy counting and for AC output signal synchronization.
