Interpretation Of Results - AEMC 6550 User Manual

Once the duration has been set, move the cursor back to Timed Run + DD.
■ Press the CONFIG button to confirm and exit the configuration menu. DD or
top left corner of the display unit to indicate the configuration chosen.
■ Press the START/STOP button to start the measurement.
In the Manual Stop + DD configuration, wait until the elapsed time is greater than one minute, then press the
START/STOP button to stop the measurement.
In the Timed Run + DD configuration (indicated by the
In both cases, it is necessary to wait one minute after the measurement is stopped (countdown on the display
unit) for the instrument to display the result. During this time, the START/STOP button is lit but the instrument
does not emit an audible signal.
The result is then displayed.

4.7.2 Interpretation of Results

Value of DD
7 < DD
4 < DD < 7
2 < DD < 4
DD < 2
Megohmmeter Models 6550/6555
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Total Run Time
Manual Stop
Manual Stop + DD
Timed Run
Timed Run + DD
DAR (s/s)
PI (m/m)
START/STOP
Quality insulation
Very poor
poor
Borderline
Good
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CONFIG
00:02:00
(m:s) 2:00
30/60
1.0/10
symbol), the measurement stops automatically.
DD
234.5 MΩ
507 V
Elapsed Time 00:02:00
DAR (30s/60s)
PI (1.0m/10m)
Capacitance
DD current
DD
.ca
DD is displayed in the
BURN
224.6 pA
1.42
- - -
2.201 nF
11.55 pA
2.55
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