UUT starts source current. Usetestleads deliveredwith
UUTsforhighertest voltages.5 kQ.
18 User Manual
. Switch the UUT output OFF remove test voltage fromthe output terminals.
G. s. Compare M191 reading UUT specification.
F.
4. Activate UUT measurement, typically pushing button the UUT. Select requested test voltage level UUT.
H. Green LED starts light.r. Use only test leads with guaranteed isolation according test voltage
range UUT.
E.
I.6 SHORT Short current mode
Short current mode (SHORT) designed enable verification short current capability UUTs -
megaohmmeters.
Operating procedure
A.
M191 starts measure short current. M191 calibrator measures the short current and displays it.
C.o.
Be aware that the test voltage for high resistance
measurements dangerous and can cause
electric shock!
Testleads deliveredwiththe calibratorareapprovedforapplication upto5kVDC.
Display shows information follows:
Fig. Connect output terminals the M191 pushing the button OUTPUT ON. Connect UUT the output terminals.M191 Insulation Tester Calibrator MEATEST. M191 measures test current sourced UUT under short circuit condition. M191
milliampermeter has one range mAwith five-digit resolution this mode. Select SHORT mode pushing repeatedly FUNCTION FUNCTION DOWN button until SHORT label
appears the display. Nominal input resistance 2.9 SHORT mode
- Measured short current mA
- Accuracy the measured value %.
B.
D. Use test leads delivered with UUT whenever possible. Disconnect M191 output terminals using the button OUTPUT ON. Select resistance range UUT necessary
