the output terminals currently connected test voltage
- Accuracy the set capacitance %. M191 calibrator measures the short current and displays it. Select HVC mode pushing repeatedly FUNCTION FUNCTION DOWN button until HVC label
appears the display.
F.
User Manual v16 19
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H.
I.7 HVC High voltage capacitance
In High voltage capacitance function (HVC) the calibrator enables connect the output terminals one three
high voltage capacitors which are built-in the calibrator. Select requested test voltage level UUT. Select resistance range UUT necessary.
C.Notes:
Whenin SHORTmode, groundingoftheLfrontpanel terminal always set ON.
MEATEST, s.
E. Maximum test voltage 000
VDC.o.
When HVC mode the display shows information follows:
Fig. Connect output terminals the M191 pushing the button OUTPUT ON.
B. Connect UUT the output terminals.
D. Green LEDstarts light. Start UUT measurements, typically pushing ONbutton the UUT.
G. Use only test leads with guaranteed isolation according test voltage
range UUT. Calibration value the selected position will appear. Sense the capacitance function offer tool for
calibration those megaohmmeters and insulation testers which can measure also capacitance.
The calibrator equipped with capacitors with nominal values 10, 50, 100 nF. Set nominal value the requested capacitor using numerical keyboard and
confirmby ENTERbutton. Use test leads delivered with UUT whenever possible. UUT starts sourceDCcurrent.
- Test voltage. Compare M191 reading UUT specification.r. terminal connectedto
protection earthpotential. Switch the UUT output OFF remove test voltage fromthe output terminals. Maximum allowed test voltage.10 High capacitancemode
- Calibration value the selected capacitor
- Vmax. Select requested test voltage level UUT.
Operating procedure
A. Select resistance range UUT necessary._________________________________________M191 Insulation Tester Calibrator
4.
TypicalshortcurrentofUUTs megaohmmetersisseveralmAmax.
M191 starts measure short current
