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