AEMC 5070 User Manual page 24

TIMED RUN + DD
This mode is identical to the Timed Run
except that 1 minute after the end of the
measurement, the instrument calculates and
displays the Dielectric Discharge (DD). The
measurement duration is the duration of timed
run + 1 minute.
The insulation resistance vs time curve
can be displayed after the measurement
by pressing the Yellow 2nd button and
the GRAPH button, as long as no new
measurement has been started (see § 3.3.2
for a typical graph).
DAR
The DAR measurement is started by
pressing the START/STOP button and stops
automatically when the DAR ratio has been
calculated, e.g. after 1 minute, the time
taken to measure the second insulation
resistance value needed for the calculation
UP mode). The default is 30/60 meaning
and the second reading will be taken in 60
seconds from the Start.
PI
The PI measurement is started by pressing
the START/STOP button and stops
automatically when the PI ratio has been
calculated, e.g. after 10 minutes, the time
taken to measure the second insulation
resistance value needed for the calculation
(the ratio times can be programmed in the
SET-UP mode).
NOTE: In this mode, the DAR ratio will also
be calculated automatically if the times
needed to calculate it are less than the
second time needed to calculate the PI ratio.
24 Megohmmeter Model 5070
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