E. Select resistance range UUT necessary.
B. This statue signalized with the label right upper corner the display.
11. 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.Display shows information follows (Standby mode):
MEATEST.
F. Timer mode STANDBY
- Measured time seconds with 100 resolution.0 £
Umax:0 .
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid. Select requested test voltage level UUT.o.
Calibrator displays current time interval and current test voltage.
- Vmax parameter maximum test voltage which
interval the Timer calibration.229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0. Switch output terminals the M191 ONby pushing the button OUTPUT ON.
C. Compare M191 time interval reading the UUT preset time. Current test voltage presented the
process. Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC.
- Test voltage.___________________________ M191 Insulation Tester Calibrator
0.
D. When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.
In STANDBY mode the calibrator waiting for test voltage. Use test leads delivered with UUT whenever possible. Green LED starts light.r.
In this mode calibrator counts time for which the valid test voltage attached the output terminals. Connect UUT the output terminals. s.8 Timer mode OFF
G.000k U
STAND BY
Local
Gnd
Test- voltag 0.
M191 goes over STANDBY.0 s
Umax:0 . Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display.002 Mode:
TIMER
ACCURACY
0 'T/
Fig. Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT.
- Accuracy the measured time interval s.
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
. 2:-;
Fig. Select function
TIMER UUT and set-up requested time interval.
Operating procedure
A
