When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.
- Accuracy the measured time interval s.
Calibrator displays current time interval and current test voltage.
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
. Use test leads delivered with UUT whenever possible.Display shows information follows (Standby mode):
MEATEST.
E.0 s
Umax:0 .
B. Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC. Select requested test voltage level UUT. Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display.o. Timer mode STANDBY
- Measured time seconds with 100 resolution. s. Connect UUT the output terminals.r.___________________________ M191 Insulation Tester Calibrator
0.002 Mode:
TIMER
ACCURACY
0 'T/
Fig.
Operating procedure
A.
In this mode calibrator counts time for which the valid test voltage attached the output terminals.
C. This statue signalized with the label right upper corner the display. Select resistance range UUT necessary.
- Vmax parameter maximum test voltage which
interval the Timer calibration.
In STANDBY mode the calibrator waiting for test voltage. 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.8 Timer mode OFF
G.
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid. Switch output terminals the M191 ONby pushing the button OUTPUT ON.
F.
D. Select function
TIMER UUT and set-up requested time interval.
M191 goes over STANDBY. Compare M191 time interval reading the UUT preset time.
- Test voltage. Green LED starts light. 2:-;
Fig.
11.229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0. Current test voltage presented the
process.000k U
STAND BY
Local
Gnd
Test- voltag 0.0 £
Umax:0 . Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT
