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