2:-;
Fig. Use test leads delivered with UUT whenever possible. Select resistance range UUT necessary.
- Test voltage.229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0.
F.
C.
In STANDBY mode the calibrator waiting for test voltage. Timer mode STANDBY
- Measured time seconds with 100 resolution.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.
11. Green LED starts light. Connect UUT the output terminals. Current test voltage presented the
process.
E.r.
- Accuracy the measured time interval s.
M191 goes over STANDBY.o.000k U
STAND BY
Local
Gnd
Test- voltag 0. Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display.
B. Select function
TIMER UUT and set-up requested time interval. Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC.0 s
Umax:0 .
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
. s.___________________________ M191 Insulation Tester Calibrator
0.
- Vmax parameter maximum test voltage which
interval the Timer calibration. Switch output terminals the M191 ONby pushing the button OUTPUT ON.0 £
Umax:0 . This statue signalized with the label right upper corner the display. Select requested test voltage level UUT.
D.
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid.
Operating procedure
A.
In this mode calibrator counts time for which the valid test voltage attached the output terminals. When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.
Calibrator displays current time interval and current test voltage. Compare M191 time interval reading the UUT preset time. Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT.8 Timer mode OFF
G.Display shows information follows (Standby mode):
MEATEST
