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