Display; Standard Display; Fault Display (Active) - Bender ISOMETER iso1685DP-425 Manual

7. Display

7.1 Standard display

During normal operation, the ISOMETER® displays the message "OK" and below, the cur-
rently measured insulation resistance.
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
profile. Select a different measurement profile.
Update period between the measuring pulses.
In the bottom line of the display, the set response values for "R(an)" are indicated. In the
example below, R =40 kΩ und R
an1 an2
IT system
OK
PGH ON
230 kΩ
R(an) 40kΩ/10kΩ
25
=10 kΩ.
Display

7.2 Fault display (active)

An active fault is displayed by .
The upper part of the display turns orange and displays the fault message.
Depending on the type of fault, the LEDs "ALARM 1", "ALARM 2" or "SERVICE" are activat-
ed.
In the following example, a resistance has been detected. Since the values R
and R =10 kΩ are both below the set response value, „ALARM 1" and „ALARM 2" have
an2
been triggered.
If several fault messages have appeared, you can navigate through the faults using the
and buttons.
If the value falls below R in a DC system or a DC offset is detected in an AC system, ad-
an1
ditional detailed information regarding the DC offset will be displayed.
Insulation fault
PGH ON
7 kΩ 7 kΩ
1/4
=40 kΩ
an1
isoxx1685Dx-x25_D00272_06_M_XXEN/04.2020