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