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