Gossen MetraWatt Z227O Bedienungsanleitung

Operating Instructions

Z227O

Probes for 4-Wire Measurement 3-447-097-03

2/3.21

Table of Contents

1 Safety Instructions............................. 1

2 Applications ....................................... 2

2.1 Intended Use /

Use for Intended Purpose .............. 2

2.2 Use for Other than Intended

Purpose ......................................... 2

2.3 Liability and Guarantee................... 2

2.4 Opening the Instrument / Repairs... 2

3 The Instrument................................... 3

3.1 Scope of Delivery ........................... 3

3.2 Symbols on the Instrument and the

Included Accessories ..................... 3

3.3 Technical Data ............................... 3

4 Operation ........................................... 3

5 Maintenance ...................................... 3

5.1 Cleaning......................................... 3

5.2 Replacing the Spring-Loaded

Contact Pins .................................. 4

6 Repair and Replacement Parts

Service, Calibration Center and

Rental Instrument Service................. 4

7 CE Declaration ................................... 4

1 Safety Instructions

Observe this documentation, in particular all

included safety information, in order to pro-

tect yourself and others from injury, and to

prevent damage to the instrument.

• Carefully and completely read and

adhere to these operating instructions.

The respective document can be found

at http://www.gossenmetrawatt.com.

Retain the document for future refer-

ence.

• Read and adhere to the operating

instructions included with your measur-

ing instrument.

• Observe and comply with all safety regu-

lations which are applicable for your

work environment.

• Wear suitable and appropriate personal

protective equipment (PPE) whenever

working with the instrument.

• Use the instrument for milliohm mea-

surements only (four-wire measurement)

in measuring category CAT II.

• Only use the instrument and its accesso-

ries in compliance with the specified

technical data and under the specified

conditions (ambient conditions, IP pro-

tection code, measuring category etc.).

• The instrument may only be used as long

as it’s in good working order.

Inspect the instrument before use. Pay

particular attention to damage, broken

insulation or kinked cables.

Damaged components must be

replaced immediately.

Z227O Gossen Metrawatt GmbH

• If the instrument or an accessory is dam-

aged during use, e.g. through falling,

remove it from operation and secure it

against inadvertent use.

• Do not use the instrument and its acces-

sories after long periods of storage under

unfavorable conditions (e.g. humidity,

dust or extreme temperature).

• Do not use the instrument and the

accessories after extraordinary stressing

due to transport.

• Plugging in the measurement cables

must not necessitate any undue force.

• Never touch conductive ends (e.g. of

test probes).

• Fully unreel all measurement cables

before starting a test/measurement.

Never perform a test/ measurement with

the measurement cable rolled up.

• Ensure that the alligator clips, test

probes or Kelvin probes make good con-

tact.

• Do not move or remove test probes, alli-

gator clips or Kelvin probes until the test/

measurement has been completed.

Unwanted sparking may otherwise occur

due to test current.

2 Applications

Please read this important information!

2.1 Intended Use /

Use for Intended Purpose

The probes are connected to compatible

measuring instruments with four-wire mea-

suring function and are used for four-wire

measurements. They connect low-imped-

ance resistors to the measuring instrument

by means of four-pole technology and com-

pensate for erroneous influences during

measurement resulting from cable and con-

tact resistances.

Safety of the operator, as well as that of the

instrument, is only assured when it’s used

for its intended purpose.

2.2 Use for Other than Intended

Purpose

Using the instrument for any purposes other

than those described in these operating

instructions is contrary to use for intended

purpose.

2.3 Liability and Guarantee

Gossen Metrawatt GmbH assumes no liabil-

ity for property damage, personal injury or

consequential damage resulting from

improper or incorrect use of the product, in

particular due to failure to observe the prod-

uct documentation. Furthermore, all guaran-

tee claims are rendered null and void in such

cases.

Nor does Gossen Metrawatt GmbH accept

any liability for data loss.

2.4 Opening the Instrument / Repairs

The instrument may only be opened by

authorized, trained personnel in order to

ensure flawless, safe operation and to

assure that the guarantee isn’t rendered null

and void. Even original replacement parts

may only be installed by authorized, trained

personnel.

Unauthorized modification of the instrument

is prohibited.

If it can be ascertained that the instrument

has been opened by unauthorized person-

nel, no guarantee claims can be honored by

the manufacturer with regard to personal

safety, measuring accuracy, compliance

with applicable safety measures or any con-

sequential damages.

Gossen Metrawatt GmbH Z227O

3 The Instrument

3.1 Scope of Delivery

Please check for completeness.

3.2 Symbols on the Instrument and

the Included Accessories

3.3 Technical Data

4 Operation

Make sure that the probes are compatible

with the utilized measuring instrument. Com-

pare the technical data and all other specifi-

cations included in the documentation for

the measuring instrument to this end.

Connect the probes as specified in the doc-

umentation for the measuring instrument.

Perform measurement as described in the

documentation for the utilized measuring

instrument. Contact must be established by

applying an appropriate amount of pressure.

Attention!

The probes may only be used for

four-wire measurements (milliohm

measurements) in measuring cate-

gory CAT II.

If necessary, use the included S hooks for

cable management. They can be used to

hold 2 measurement cables together.

5 Maintenance

5.1 Cleaning

No special maintenance is required. Keep

outside surfaces clean. Use a cloth for

cleaning, which has been slightly dampened

with water.

Attention!

Avoid the use of cleansers, abrasives

or solvents.

1 Set of test probes, 1 red and 1 black

3Shooks

1 Operating Instructions (this document)

Warning concerning a point of

danger (attention, observe

documentation!)

Double insulation

(protection category II)

European conformity marking

The device may not be disposed of

with household trash. Current and

further information is available on

our website at http://www.gossen-

metrawatt.com under the search

terms “WEEE” and “environmental

protection”.

Ambient Conditions

Operating

temperature:

-20 ... +50 °C

Storage

temperature:

-25 ... +75 °C

Relative

humidity:

Max. 75%

No condensation

allowed

Elevation: Max. 2000 m

Electrical Safety

Measuring

category:

CAT II 300 V 10 A

Pollution degree: 2

Mechanical Design

Plug: 4 mm,

90° angled

safety plug

Length (overall): 120 cm

Weight: Approx. 180 g

Strain relief: > 100 N

Edited in Germany • Subject to change, errors excepted • PDF version available on the Internet

All trademarks, registered trademarks, logos, product names and company names are the property of

their respective owners.

Gossen Metrawatt GmbH Z227O

Gossen Metrawatt GmbH

Südwestpark 15

90449 Nürnberg • Germany

Phone: +49-911-8602-111

Fax: +49-911-8602-777

e-mail: info@gossenmetrawatt.com

www.gossenmetrawatt.com

Attention!

Never touch or clean the conductive

ends of the test probes!

5.2 Replacing the Spring-Loaded

Contact Pins

The spring-loaded contact pins are subject

to wear and damage. The spring-loaded

contact pins can be replaced.

Replacement part: Z227F spring-loaded

contact pins for Kelvin probes.

Orders can be placed by contacting our

sales department, See below for contact

details. Information concerning replacement

can be found in the supplementary sheet

included with the replacement part.

6 Repair and

Replacement Parts Service,

Calibration Center and

Rental Instrument Service

If required please contact:

This address is only valid in Germany.

Please contact our representatives or sub-

sidiaries for service in other countries.

7 CE Declaration

The instrument fulfills all requirements of

applicable EU directives and national regula-

tions. We confirm this with the CE mark. The

CE declaration is available upon request.

GMC-I Service GmbH

Service Center

Beuthener Str. 41

90471 Nürnberg, Germany

Phone +49-911-817718-0

Fax +49 911-817718-253

e-mail service@gossenmetrawatt.com

Web www.gmci-service.com

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