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