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