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