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