Switch output terminals the M191 ONby pushing the button OUTPUT ON.r.0 s
Umax:0 .
Notes:
Donotdisconnectconnectionbetween UUTandM191 calibratorotherwise themeasuredvaluesarenot valid.
M191 goes over STANDBY. Current test voltage presented the
process.
Operating procedure
A.
- Accuracy the measured time interval s. Compare M191 time interval reading the UUT preset time.___________________________ M191 Insulation Tester Calibrator
0. Select requested test voltage level UUT. Use test leads delivered with UUT whenever possible.
In STANDBY mode the calibrator waiting for test voltage.
- Vmax parameter maximum test voltage which
interval the Timer calibration. This statue signalized with the label right upper corner the display.
F. s.Display shows information follows (Standby mode):
MEATEST.
B.o.002 Mode:
TIMER
ACCURACY
0 'T/
Fig. Connect UUT the output terminals. Use onlytest leads with guaranteedisolationaccording totest voltage
range UUT.
E.0 £
Umax:0 . Timer mode STANDBY
- Measured time seconds with 100 resolution.
has been caught the calibrator during time
calibrator output terminals during calibration
User Manual v16 17
. 2:-;
Fig.
Calibrator displays current time interval and current test voltage. Select function
TIMER UUT and set-up requested time interval. Minimum guaranteed valid test voltage which
can caught the calibrator 100 VDC. When valid test voltage identified the output terminals, the calibrator goes over RUNNING statue.000k U
STAND BY
Local
Gnd
Test- voltag 0.
C.
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.8 Timer mode OFF
G. Select resistance range UUT necessary.
11.229kU
OFF
Local
Grid
Test, 11a'EJe: Mode :
TIMER
ACCURACY
0. Select TIMER mode pushing repeatedly FUNCTION FUNCTION DOWN button until TIMERlabel
appears the display. Green LED starts light.
In this mode calibrator counts time for which the valid test voltage attached the output terminals.
- Test voltage
