Switch output terminals the M191 ONby pushing the button OUTPUT ON. 2:-;
Fig.
Calibrator displays current time interval and current test voltage. Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT. Green LED starts light. Timer mode STANDBY
- Measured time seconds with 100 resolution.
D. Select function
TIMER UUT and set-up requested time interval. When the test voltage disconnected UUT, calibrator stops operation, goes over statue OFF,
disconnect output terminals and hold value measured time interval and maximum test voltage which has
been detected during the period.229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0.002 Mode:
TIMER
ACCURACY
0 'T/
Fig.
- Accuracy the measured time interval s.000k U
STAND BY
Local
Gnd
Test- voltag 0.
F. Select resistance range UUT necessary.
Operating procedure
A.
B.8 Timer mode OFF
G. This statue signalized with the label right upper corner the display. s. Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display.
- Vmax parameter maximum test voltage which
interval the Timer calibration. Compare M191 time interval reading the UUT preset time.0 £
Umax:0 .
- Test voltage.
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
.
In STANDBY mode the calibrator waiting for test voltage. Use test leads delivered with UUT whenever possible.r.
M191 goes over STANDBY.
E.
C.o. Connect UUT the output terminals.0 s
Umax:0 . Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC.
In this mode calibrator counts time for which the valid test voltage attached the output terminals.___________________________ M191 Insulation Tester Calibrator
0.
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid. When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.Display shows information follows (Standby mode):
MEATEST. Current test voltage presented the
process. Select requested test voltage level UUT.
11
