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