_________________________________________M191 Insulation Tester Calibrator
Notes:
Testleadsdeliveredwiththe calibratorareapprovedforapplication to5kVDC.13 TimesequenceinPSPmode
Operating procedure
A. R3
resistance is
connected. The time which has been elapsed after the starting RUNNING sequence.
Be aware that the test voltage for high resistance
measurements dangerous and can cause
electric shock!
MEATEST. Usetestleadsdeliveredwith
UUTsforhighertest voltages. R0
resistance is
connected. Calibrator
counts first time
r (n)
RUNNIN
Input termina
switched on.Preset resistances R0, R1, R2, which are connected the output terminals time points t0, t1, t2,
t3.
unts time
f
RUNNING mode
Input terminals
switched on.
Time sequence
Following drawing shows meaning and way influence the parameters and :
RUNNING mode
Input terminals
switched on.
resistance is
Calibrator co
interval t2. Use only test leads with guaranteed isolation according test voltage
range UUT. Reading currently applied test voltage displayed. Connect UUT the output terminals. s.
- Test voltage.
- Accuracy actually connected resistance %.
Calibrator in
RUNNING mode
until output terminlas
are disconnected
R
y
STANDBY
mode
R1 resistance is
selected.r.
Calibrator starts to
count time
t2
t (s)
t3
Fig. Use test leads delivered with UUT whenever possible.
to
RUNNING mode
Test voltage from
UUT identified.
G mode
ls
R1
connected.
- Total time. Input
terminals are
switched on. R2
resistance is
connected.
User Manual v16 23
.o. Calibrator
counts time interval
R
R
RUNNING mode
Input terminals
switched on
