ISOMETER® isoCHA425
Insulation monitoring device for unearthed DC systems
DC 50 V up to 500 V. Software version: D612 V1.xx
This operating manual is designed for electrically skilled persons working in
electrical engineering and electronics! It does not replace the operating ma-
nual. Ensure that personnel has read this manual and understood all instruc-
tions relating to safety. The manual can be found at:
http://www.bender.de/manuals
1. Intended use
The ISOMETER® is used for DC charging stations according to the Japanese
charging standard CHAdeMO for voltages between DC 50 V und 500 V. Single-
pole insulation faults are reported with a response time ≤ 1 second. Two-pole
insulation faults within 10 seconds. The maximum permissible system leakage
capacitance C
is 2 μF. In order to meet the requirements of applicable stan-
e
dards, customised parameter settings must be made on the equipment in or-
der to adapt it to local equipment and operating conditions. Please heed the
limits of the area of application indicated in the technical specifications.
Any use other than that described in this quickstart is regarded as improper.
14
To ensure that the ISOMETER® functions correctly, a mains
internal resistance of
L- via the source (e.g. the transformer) or the load.
In the event of an alarm message on the ISOMETER®, the
insulation fault should be eliminated as quickly as possible.
If the ISOMETER® is installed inside a control cabinet, the
insulation fault message must be audible and/or visible to
attract attention.
≤
1 kΩ must exist between L+ and
isoCHA425_D00352_00_Q_DEEN/04.2018