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