U1452A/U1452AT/U1451A Quick Start Guide
11
ENGL
ISH
Performing PI/DAR/T Tests
Polarization Index (PI) = IR
10 minutes
/IR
1 minute
Dielectric Absorption Ratio (DAR) = IR
60 seconds
/
IR
30 seconds
(default; can be changed to IR
60
seconds
/IR
15 seconds
in Setup)
Timed (T) = IR
1 minute
(default; can be changed in
Setup)
1
2
3
OR
NOTE
– Press
[Range]
or
[Limit]
to toggle the display
between the timer and the measured value
during PI, DAR, or T tests.
–
Err
is shown on the display if the IR is greater
than the maximum range or less than 0.001 M
Ω
after t1/t15/t30; if the test is interrupted by the
user; or if the tester’s battery is low.
