Gossen Metrawatt Z821B Bruksanvisning
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Sida 1/2
3-348-769-21
4/8.15
Z821B / Z823B
Zangenstromwandler
Operating instructions
1 Safety precautions
The clip-on current transformers are con-
structed and tested in compliance with the
safety rules of IEC 414 / VDE 0410 bzw.
IEC
348 / VDE 0411. When properly used, the
safety of both the user and the unit is assured.
It is not assured, however, if the units are mis
-
used or carelessly handled.
To maintain the safe and proper condition and
to ensure safe operation, it is absolutely neces
-
sary to carefully and completely read the oper-
ating instructions before using the unit. These
instructions must be followed in all respects.
2 Instructions for use
Clip-on current transformers have a core that
can be opened on one side so that the primary
conductor need not be disconnected for mea
-
suring. They have only one secondary winding
which encloses the core near the fulcrum of the
tongue legs. The front surfaces of the core,
which become visible when the tongue legs are
opened, must always be kept clean. Even
small dirt particles can cause a large measuring
error. The same goes for greasy or soiled front
surfaces. All metal parts are enclosed by insu
-
lating material so that the transformer can be
used safely.
The secondary connection is made via hard-
wired leads with contact-protected connection
plugs.
3 Repair, replacement of parts and
calibration
The equipment may be opened only by autho-
rized service personnel to ensure the safe and
correct operation of the equipment and to keep
the warranty valid.
Even original spare parts may be installed only
by authorized service personnel.
In case the equipment was opened by unau-
thorized personnel, no warranty regarding per-
sonal safety, measurement accuracy, confor-
mity with applicable safety measures or any
consequential damage is granted by the manu
-
facturer.
When opening the unit, live parts may be
exposed. The unit must be disconnected from
the measuring circuit prior to repair, replace
-
ment of parts or calibration. If repair or calibra-
tion cannot be avoided unless the unit is open
and live, this work must only be performed by a
qualified person who understands the danger
involved.
4 Faults and extraordinary stress
When it must be assumed that safe operation
is no longer possible, take the unit out of ser
-
vice and secure it against accidental use. It is
assumed that safe operation is no longer pos
-
sible,
• when the unit shows obvious signs of dam-
age,
• when the unit no longer functions,
• after prolonged storage under adverse condi-
tions,
• after severe transportation stress.
5 Repair and replacement parts
service
When you need service, please contact:
GMC-I Service GmbH
Service Center
Thomas-Mann-Strasse 20
90471 Nürnberg • Germany
Phone +49 911 817718-0
Fax +49 911 817718-253
E-Mail service@gossenmetrawatt.com
www.gmci-service.com
This address is for the Germany only.
Abroad, our representatives or establishments
are at your disposal.
Produktspecifikationer
| Varumärke: | Gossen Metrawatt |
| Kategori: | Inte kategoriserad |
| Modell: | Z821B |
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