isoNAV685-D-B_D00264_03_M_XXEN/06.2017
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Display
8. Display
8.1 Standard display
In normal operation, the ISOMETER® displays the message OK and below the latest meas-
ured insulation resistance of the connected system points L1, L2 and L3.
In the bottom line of the display, the set limit value for R(an) is indicated.
In the example shown below R
an
=50 kΩ.
The signal quality of the measurement suits the selected profile.
The better the signal quality, the faster and more exact the device can
measure.
The signal quality of the measurement does not suit the selected pro-
file. Select a different measurement profile.
Update period between the test pulses
IT
System
O K
L 1 2 3 0 kΩ
L 2 2 5 0 kΩ
L 3 1 3 0 kΩ
R(an) 50kΩ
O K
L 1 2 3 0 kΩ
L 2 2 5 0 kΩ
L 3 1 3 0 kΩ
8.2 Fault display (active)
An active fault is displayed by
. The upper part of the display will become orange and
displays the fault message.
Depending on the type of fault, the LEDs ALARM 1, ALARM 2 or SERVICE are activated.In
the example below, the insulation resistance is still 23
If several fault messages have appeared, you can navigate through the faults using the
and
button.
Iso. Alarm L1
ALARM
5/7
2 3 kΩ
