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