Display; Standard Display; Fault Indication (Active) - Bender ISOMETER iso1685D Series 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 pro-
file. Select a different measurement method.
Update period between the test pulses
In the bottom line of the display, the set limit values for R(an) are indicated. In the exam-
ple below, R =40 kΩ and R =10 kΩ.
an1 an2
IT system
PGH ON
230 kΩ 230 kΩ
EDS off
R(an)
25
OK OK
40kΩ/10kΩ
Display

7.2 Fault indication (active)

An active fault is displayed by The upper part of the display becomes 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 7 kΩ. Since the values R
and R =10 kΩ are both below the set response value, ALARM 1 and ALARM 2 have been
an2
triggered.
If several fault messages have appeared, you can navigate through the faults using the
and buttons.
Insulation fault
PGH ON
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 as illustrated
above.
7 kΩ 7 kΩ
1/4
iso1685DP_D00272_03_M_XXEN/08.2017
=40 kΩ
an1