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