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