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