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