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