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