Gossen Metrawatt Z821B Bruksanvisning

Gossen Metrawatt Inte kategoriserad Z821B

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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.

Edited in Germany • Subject to change without notice • A pdf version is available on the Internet

GMC-I Messtechnik GmbH

Südwestpark 15

90449 Nürnberg • Germany

Phone: +49 911 8602-111

Fax: +49 911 8602-777

e-mail: info@gossenmetrawatt.com

www.gossenmetrawatt.com

6 Specifications

Clip-on current transformers

Type Z823B 1) Z821B

Description/

Applications

The current transformers serve to expand AC measuring

ranges. In conjunction with indicating and recording instru-

ments it is possible to measure AC currents on lines and bus

bars without the need to interrupt them.

The secondary connection is made via hard-wired leads with

contact-protected connection plugs.

Nominal

primary current 1 ... 1000 A~ cont.

(1200 1 A max. hour)

1 ... 2400 A~ cont.

(3000 A 10 min „on“/ 30 min

„off“)

Output signal 1 mV~ / A~ 0.33 mV~ / A~

Ratio

input:output 1000 3000 : 1 : 1

Accuracy/

max. error ± (0.5 % of VA2) + 0.5 mV) ±(0.5 % of VA2) + 0.5 mV)

Load 1 1 Ω Ω

Frequency

range

45 Hz ... 48 ... 65 Hz ...

10 kHz 30 Hz ... 48 ... 65 Hz ... 5 kHz

Max. operating

voltage

660 V

ac c. to IEC 348

600 V / CAT I I

acc. to IEC 61010

Opening

for round con-

ductors up to

for flat con-

ductors up to

54 mm ∅

54 mm (diagonal)

64 mm ∅

5 times 5 x mm 125 mm or

3 times 10 x mm 100 mm

Dimensions 105 333 x x x 206 48 mm 145 x 49 mm

Weight 0.65 1.8 kg kg

Order number Z823B Z821B

1) no longer available 2) VA = Output voltage

7 Device Return and Environmentally Compatible Disposal

The instrument is a category 9 product (moni-

toring and control instrument) in accordance

with ElektroG (German Electrical and Electronic

Device Law). This device is subject to the

RoHS directive. Furthermore, we make refer-

ence to the fact that the current status in this

regard can be accessed on the Internet at

www.gossenmetrawatt.com by entering the

search term WEEE.

We identify our electrical and electronic

devices in accordance with

WEEE 2012/19/EU and ElektroG with

the symbol shown to the right per DIN

EN 50419.

These devices may not be disposed of with the

trash. Please contact our service department

regarding the return of old devices.

Produktspecifikationer

Varumärke:	Gossen Metrawatt
Kategori:	Inte kategoriserad
Modell:	Z821B

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