Connect output terminals the M191 pushing the button OUTPUT ON.
Be aware that the test voltage for high resistance
measurements dangerous and can cause
electric shock!
Testleads deliveredwiththe calibratorareapprovedforapplication upto5kVDC.6 SHORT Short current mode
Short current mode (SHORT) designed enable verification short current capability UUTs -
megaohmmeters. M191 calibrator measures the short current and displays it. Select requested test voltage level UUT.
D. Switch the UUT output OFF remove test voltage fromthe output terminals. Use test leads delivered with UUT whenever possible. UUT starts source current.
18 User Manual
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F. s.
C. Connect UUT the output terminals.M191 Insulation Tester Calibrator MEATEST.o. Select SHORT mode pushing repeatedly FUNCTION FUNCTION DOWN button until SHORT label
appears the display.
G. M191 measures test current sourced UUT under short circuit condition. Nominal input resistance 2. Usetestleads deliveredwith
UUTsforhighertest voltages.
Display shows information follows:
Fig. Select resistance range UUT necessary. Compare M191 reading UUT specification. Activate UUT measurement, typically pushing button the UUT. M191
milliampermeter has one range mAwith five-digit resolution this mode.
E.
Operating procedure
A.
M191 starts measure short current. Green LED starts light.9 SHORT mode
- Measured short current mA
- Accuracy the measured value %.
B. Use only test leads with guaranteed isolation according test voltage
range UUT.
4. Disconnect M191 output terminals using the button OUTPUT ON.5 kQ.
I.
H.r
