- Accuracy the measured time interval s.
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
. Current test voltage presented the
process.
11. Select function
TIMER UUT and set-up requested time interval. Switch output terminals the M191 ONby pushing the button OUTPUT ON. Use test leads delivered with UUT whenever possible. When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.
M191 goes over STANDBY. Compare M191 time interval reading the UUT preset time.8 Timer mode OFF
G. Connect UUT the output terminals.Display shows information follows (Standby mode):
MEATEST.
F. Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT.
In STANDBY mode the calibrator waiting for test voltage.
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid. Timer mode STANDBY
- Measured time seconds with 100 resolution. Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC. This statue signalized with the label right upper corner the display.0 s
Umax:0 .
In this mode calibrator counts time for which the valid test voltage attached the output terminals. 2:-;
Fig. Select resistance range UUT necessary.
Calibrator displays current time interval and current test voltage.___________________________ M191 Insulation Tester Calibrator
0.000k U
STAND BY
Local
Gnd
Test- voltag 0.o.
Operating procedure
A.
C. Green LED starts light.0 £
Umax:0 .
B.
- Vmax parameter maximum test voltage which
interval the Timer calibration.r. Select requested test voltage level UUT.229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0. 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.
- Test voltage.
D. Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display. s.
E.002 Mode:
TIMER
ACCURACY
0 'T/
Fig
