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