Intended Use; Safety Information - Bender Isometer Isopv425 Kurzanleitung

ISOMETER® isoPV425
with the AGH420 coupling device
Insulation monitoring device for unearthed
IT AC-, AC/DC and DC systems (IT systems)
for photovoltaic systems up to
3(N)AC, AC 690 V / DC 1000 V
Software version: D0404 V2.xx
This operating manual is designed for electrically skilled persons working in
electrical engineering and electronics! It does not replace the operating ma-
nual. Make sure that the personnel has read this manual and understood all
instructions relating to safety. The manual can be found at:
www.bender.de/en/service-support/downloads

1. Intended use

The isoPV425 ISOMETER® monitors the insulation resistance R
AC/DC main circuits (IT systems) with nominal system voltages of 3(N)AC, AC/
DC 0...690 V oder DC 0...1000 V. DC components existing in 3(N)AC, AC/DC
systems do not influence the operating characteristics when a load current of
at least 10 mA DC flows. A separate supply voltage U
tems to be also monitored. The maximum permissible system leakage capaci-
tance C , is 1000 μF.
e

2. Safety information

Installation, connection and commissioning of electrical equipment shall only
be carried out by qualified electricians. Particular attention must be paid to:
Current safety regulations, in particular DIN EN 50110
 
Enclosed sheet "Important safety instructions for Bender products".
 
16
To ensure that the ISOMETER® functions correctly, a mains
internal resistance of
L2/- via the source (e.g. the transformer) or the load.
allows de-energised sys-
s
≤
1 kΩ must exist between L1/+ and
isoPV425_D00028_03_Q_DEEN/05.2018
of unearthed
F