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