229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0. Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC. When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.___________________________ M191 Insulation Tester Calibrator
0.0 s
Umax:0 .
E.
B.002 Mode:
TIMER
ACCURACY
0 'T/
Fig. 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. s. Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT. Select function
TIMER UUT and set-up requested time interval.r. Compare M191 time interval reading the UUT preset time.
F.
In this mode calibrator counts time for which the valid test voltage attached the output terminals.
- Test voltage.8 Timer mode OFF
G. Green LED starts light. Select requested test voltage level UUT.Display shows information follows (Standby mode):
MEATEST. Current test voltage presented the
process.000k U
STAND BY
Local
Gnd
Test- voltag 0. Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display.
D.
- Vmax parameter maximum test voltage which
interval the Timer calibration. Switch output terminals the M191 ONby pushing the button OUTPUT ON.
M191 goes over STANDBY. Use test leads delivered with UUT whenever possible. 2:-;
Fig. Connect UUT the output terminals.
Calibrator displays current time interval and current test voltage.o. Timer mode STANDBY
- Measured time seconds with 100 resolution.
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid.
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
. This statue signalized with the label right upper corner the display.
C.
- Accuracy the measured time interval s. Select resistance range UUT necessary.
11.0 £
Umax:0 .
Operating procedure
A.
In STANDBY mode the calibrator waiting for test voltage
