Gossen Metrawatt Z821B Handleiding

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3-348-769-21

4/8.15

Z821B / Z823B

Zangenstromwandler

Operating instructions

1Safety precautions

The clip-on current transformers are con-

structed and tested in compliance with the

safety rules of IEC414 / 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.

2Instructions 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.

3Repair, 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.

4Faults 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.

5Repair 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-Mailservice@gossenmetrawatt.com

www.gmci-service.com

This address is for the Germany only.

Abroad, our representatives or establishments

are at your disposal.

Product specificaties