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