WIKA GCS-1 User Manual [en, de, es, fr]

Operating instructions Betriebsanleitung Mode d'emploi Manual de instrucciones

Gas cylinder scale model GCS-1

Gasaschenwaage Typ GCS-1

Balance pour bouteilles de gaz type GCS-1

Balanza de bombonas de gas GCS-1

Gas cylinder scale model GCS-1

Operating instructions model GCS-1 Page 3 - 24

Betriebsanleitung Typ

Mode d'emploi type GCS-1 Page 45 - 60

Manual de instrucciones modelo GCS-1 Página 61 - 75

WIKA

is a registered trademark in various countries.

WIKA

ist eine geschützte Marke in verschiedenen Ländern.

Vor Beginn aller Arbeiten Betriebsanleitung lesen! Zum späteren Gebrauch aufbewahren!

GCS-1

Seite 25 - 44

Prior to starting any work, read the operating instructions! Keep for later use!

Vor Beginn aller Arbeiten Betriebsanleitung lesen! Zum späteren Gebrauch aufbewahren!

Lire le mode d‘emploi avant de commencer toute opération ! A conserver pour une utilisation ultérieure !

¡Leer el manual de instrucciones antes de comenzar cualquier trabajo! ¡Guardar el manual para una eventual consulta!

2 WIKA operating instructions gas cylinder scale model GCS-1

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Contents

1. General information 4

2. Safety 6

3. Specications 9

4. Design and function 13

5. Transport, packaging and storage 13

6. Commissioning, operation 14

7. Adjustment of zero point / span 15

8. Maintenance and cleaning 16

9. Faults 17

10. Return and disposal 17

Appendix 1: EC declaration of conformity 18

Appendix 2: Declaration of conformity ATEX 19

Declarations of conformity can be found online at www.wika.com.

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3WIKA operating instructions gas cylinder scale model GCS-1

1. General information

■

The gas cylinder scale described in the operating instructions has been designed and manufactured using state-of-the-art technology. All components are subject

to stringent quality and environmental criteria during production. Our management systems are certied to ISO 9001 and ISO 14001.

■

These operating instructions contain important information on handling the instrument. Working safely requires that all safety instructions and work instructions are observed.

■

Observe the relevant local accident prevention regulations and general safety regulations for the instrument's range of use.

■

The operating instructions are part of the product and must be kept in the immediate vicinity of the instrument and readily accessible to skilled personnel at any time.

■

Skilled personnel must have carefully read and understood the operating instructions prior to beginning any work.

■

The manufacturer's liability is void in the case of any damage caused by using the product contrary to its designated use, non-compliance with these operating instructions, assignment of insuciently qualied skilled personnel or unauthorised modications to the instrument.

■

The general terms and conditions contained in the sales documentation shall apply.

■

Subject to technical modications.

■

Further information:

- Internet address: www.wika.com

- Relevant data sheet: PE 87.19

- Application consultant: Tel.: (+49) 9372/132-8976 Fax: (+49) 9372/132-8008976

E-mail: support-tronic@wika.de

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1. General information

Explanation of symbols

WARNING!

... indicates a potentially dangerous situation that can result in serious injury or death, if not avoided.

CAUTION!

... indicates a potentially dangerous situation that can result in light injuries or damage to equipment or the environment, if not avoided.

Information

… points out useful tips, recommendations and information for ecient and trouble-free operation.

WARNING!

... indicates a potentially dangerous situation in the hazardous area that can result in serious injury or death, if not avoided.

Abbreviations

2-wire

U+ Positive power terminal U- Negative power terminal S+ Positive measurement terminal S - Negative measurement terminal

Two connection lines are used for the voltage supply. The measurement signal also provides the supply current.

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2. Safety

WARNING!

Before installation, commissioning and operation, ensure that the appro-

2.1 Intended use

The gas cylinder scale is used to measure mass.

The instrument has been designed and built solely for the intended use described here, and may only be used accordingly.

The manufacturer shall not be liable for claims of any type based on operation contrary to the intended use.

priate gas cylinder scale has been selected in terms of measuring range, design and specic measuring conditions. Non-observance can result in serious injury and/or damage to the equipment.

Further important safety instructions can be found in the individual chapters of these operating instructions.

2.2 Personnel qualication

WARNING! Risk of injury should qualication be insucient!

Improper handling can result in considerable injury and damage to equipment.

■

The activities described in these operating instructions may only be carried out by skilled personnel who have the qualications described below.

■

Keep unqualied personnel away from hazardous areas.

Skilled personnel

Skilled personnel are understood to be personnel who, based on their technical training, knowledge of measurement and control technology and on their experience and knowledge of country-specic regulations, current standards and directives, are capable of carrying out the work described and independently recognising potential hazards.

Special operating conditions require further appropriate knowledge, e.g. of aggressive media.

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2. Safety

2.3 Additional safety instructions for gas cylinder scale per ATEX

WARNING!

■

Non-observance of these instructions and their contents may result in the loss of explosion protection.

■

For operation in hazardous areas, the lower voltage levels apply, as per chapter "3. Specications".

■

Actions or alterations to the gas cylinder scale, which are not described in these operating instructions, are not permitted.

■

If faults cannot be eliminated, the instrument must be taken out of operation and prevented from being accidentally put back into service.

■

Always operate the instrument within its overload limits.

■

Observe the working conditions in accordance with chapter "3. Specications".

■

The cable shield should be earthed at one end, and preferably in the non-hazardous area (EN 60079-14). For instruments with a cable outlet, the cable shield is connected to the case. Additional connection of the shield is then only permitted if any accidental energisation between the shield connection (e.g. at the power supply) and the case can be avoided (see EN 60079-14).

■

Power the GCS-1-A gas cylinder scale variant, with marking "Ex nL IIC T4", by an energy-limited 4 ... 20 mA current loop.

■

Connect the gas cylinder scale with marking "Ex nA IIC T4" to a power and signal circuit with transient protection in accordance with EN 60079-15, chapter 23 C.

■

Disconnect a gas cylinder scale with the marking Ex nA, or when it is operated under nA conditions, only after the power has been turned o.

■

Both the internal capacitance and inductance must be considered

■

Flying leads with bare ends must be nished with ferrule ends (cable preparation)

■

Provide equipotential bonding between the earth at the voltage supply and the gas cylinder and/or the installation, in case they are connected conductively.

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7WIKA operating instructions gas cylinder scale model GCS-1

2. Safety

2.4 Special hazards

WARNING!

Observe the information given in the applicable type examination

2.6 Labelling / safety marks

certicate and the relevant country-specic regulations for installation and use in explosive atmospheres (e.g. IEC 60079-14, NEC, CEC). Non-observance can result in serious injury and/or damage to equipment. For additional important safety instructions for instruments with ATEX approval see chapter "2.3 Additional safety instructions for gas cylinder scale per ATEX".

WARNING! For hazardous media such as oxygen, acetylene, ammable or toxic gases or liquids, and refrigeration plants, compressors, etc., in addition to all standard regulations, the appropriate existing codes or regulations must also be followed.

WARNING!

Residual media in dismounted instruments can result in a risk to persons, the environment and equipment. Take sucient precautionary measures.

Product label

Output signal

Power supply

P# Product no.

S# Serial no.

8 WIKA operating instructions gas cylinder scale model GCS-1

Measuring range

Pin assignment

Date of manufacture

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2. Safety / 3. Specications

Explanation of symbols

Before mounting and commissioning the instrument, ensure you read the operating instructions!

CE, Communauté Européenne

Instruments bearing this mark comply with the relevant European directives.

ATEX European Explosion Protection Directive

(Atmosphère = AT, explosible = Ex) Instruments bearing this mark comply with the requirements of the European Directive 94/9/EC (ATEX) on explosion protection.

3. Specications

3.1 Measuring ranges

Weight

lbs

Measuring range 0 ... 60 0 ... 100 0 ... 300

Overload 0 ... 250 0 ... 300 0 ... 750

Measuring range 0 ... 27.2 0 ... 45.4 0 ... 136.1

Overload 0 ... 115 0 ... 130 0 ... 340

Other measuring ranges on request.

3.2 Output signal

Model Signal

GCS-1-A (2-wire) 4 ... 20 mA GCS-1-G (4-wire) DC 0 ... 5 V GCS-1-F (4-wire) DC 0 ... 10 V

Load

Model GCS-1-A: ≤ (power supply - 10 V) / 0.02 A Model GCS-1-G: > 5 kΩ Model GCS-1-F: > 10 kΩ

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3. Specications

3.3 Voltage supply

Power supply

DC 14 ... 30 V

Maximum output current

≤ 35 mA

3.4 Accuracy

Analogue signal

≤ 0.1 % of span ≤ 0.05 % of span (BFSL)

Non-linearity (IEC 61298-2)

≤ 0.05 % of span

Long-term stability (per month)

≤ 0.04 % of span (at reference conditions)

Adjustability of zero point / span

± 5 % through built-in potentiometer

Temperature eect

Temperature coecients in rated temperature range

■

Mean TC zero point: ≤ ± 0.1 % of span / 10 K

■

Mean TC span: ≤ ± 0.1 % of span / 10 K

3.5 Reference conditions (per IEC 61298-1)

Temperature: 15 ... 25 °C Atmospheric pressure: 950 ... 1050 mbar Humidity: 45 ... 75 % relative Nominal position: horizontal Power supply: DC 24 V Load: see output signals

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3. Specications

3.6 Operating conditions

Mechanics

Resistant to impact of 90 kg from a height of 10 cm Ingress protection: IP 65 (IEC 60529)

Permissible temperatures

Ambient temperature

■

T4: -20 ... +50 °C

■

T5: -20 ... +40 °C

Storage temperature: -20 ... +60 °C Rated temperature range: -10 ... +50 °C

3.7 Materials

Sensor

Aluminium

Case

Stainless steel

Base plate

Stainless steel

3.8 Approvals, directives and certicates

CE conformity

EMC directive:

2004/108/EC

EN 61326 emission (group 1, class B)

and interference immunity (industrial application)

Explosion protection

Directive Ignition protection type

Without ATEX approval ATEX category 3G Ex nL IIC T4, T5 X ATEX category 3G Ex nA IIC T4, T5 X

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3. Specications

3.9 Safety-related maximum values

(only valid for devices to ATEX category 3G)

Model GCS-1-A Ex nL IIC T4, T5 X Ex nA IIC T4, T5 X

Supply voltage: DC 14 ... 24 V DC 14 ... 24 V Current limitation Ii: 30 mA Power limitation P Internal capacitance C Internal inductance L

Model GCS-1-G Ex nL IIC T4, T5 X Ex nA IIC T4, T5 X

Supply voltage: DC 14 ... 24 V DC 14 ... 24 V Current limitation Ii: 30 mA Power limitation P Internal capacitance C Internal inductance L Max. output voltage U Max. output current I External capacitance C External inductance L

Model GCS-1-F Ex nL IIC T4, T5 X Ex nA IIC T4, T5 X

1) 56 pF / cable length in m

2) 0.1 µH / cable length in m

1 W 1 W

0,1 µF

1,2 mH

1 W 1 W

0,1 µF

1,2 mH DC 12 V 35 mA 4,122 µF 23,4 mH -

1 W 1 W

0,1 µF

1,2 mH DC 12 V 35 mA 4,122 µF 23,4 mH -

12 WIKA operating instructions gas cylinder scale model GCS-1

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3. Specications ... 5. Transport, packaging and storage

7.3 Electrical connection

Type of connection: Cable outlet Cable length: 6 m (≈ 20 ft)

Electrical safety

Short-circuit resistance: S+ vs. UReverse polarity protection: U+ vs. UInsulation voltage: DC 500 V

4. Design and function

4.1 Short description / Description

With the gas cylinder scale, the mass of the gas cylinder and its contents is measured and converted to an electrical signal. This electrical signal varies in proportion to the mass and can be evaluated accordingly.

4.2 Scope of delivery

■

Gas cylinder scale with 6 m cable outlet

■

Protocol

Cross-check scope of delivery with the delivery note.

5. Transport, packaging and storage

5.1 Transport

Check the gas cylinder scale for any damage that may have been caused during transportation. Obvious damage must be reported immediately.

5.2 Packaging

Do not remove packaging until just before mounting. Keep the packaging as it will provide optimum protection during transport (e.g. change in installation site, sending for repair).

5.3 Storage

Permissible conditions at the place of storage:

Storage temperature: -20 ... 60 °C

WARNING!

Before storing the instrument (following operation), remove any residual media. This is of particular importance if the medium is hazardous to health, e.g. caustic, toxic, carcinogenic, radioactive, etc.

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13WIKA operating instructions gas cylinder scale model GCS-1

6. Commissioning, operation

Electrical connection

2-wire

Not Ex area Ex area

Shield (connected to case)

Legend

Load (e.g. digital indicator)

Voltage source

Pin assignment

2-wire U+ / S+ = brown U-/ S- =black 4-wire U

= red U- = black S+ = orange S- = brown

Brown

Black

4-wire

Not Ex area Ex area

Red

Orange

Brown

Black

Shield (connected to case)

The shield is connected to the case. Ensure that no moisture can enter at the cable end.

Functional check

The output signal must be proportional to the mass. If this is not the case, this may indicate a damaged measuring cell. In this case, see chapter "9. Faults".

When weighing a gas cylinder make sure that the gas cylinder scale is seated on a solid and level base and that it cannot catch on any other objects.

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7. Adjustment of zero point / span

Preparation

■

In order to access the zero point and span potentiometers, unscrew the protective cap using a screwdriver (see gure A).

■

Introduce a reference mass which is at least 3 x as accurate as the given accuracy.

Zero point

■

Remove the load from the gas cylinder scale.

■

By adjusting the signal to 4 mA, the zero point can be set (see gure B).

Span

■

Set the span by loading the scale with the appropriate reference mass and adjusting the signal to 20 mA.

■

Check the zero point.

■

If the zero point is not right, repeat the procedure.

■

Screw the sealing cap with seal back in, in order to close the potentiometer entry.

After the adjustment, check that the system is functioning correctly. Recommended recalibration cycle: 1 year

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15WIKA operating instructions gas cylinder scale model GCS-1

8. Maintenance and cleaning / 9. Faults

8. Maintenance and cleaning

8.1 Maintenance

The gas cylinder scale is maitenance-free.

Repairs must only be carried out by the manufacturer.

8.2 Cleaning

CAUTION!

■

Electrical connections must not come into contact with moisture.

■

Wash or clean the dismounted instrument before returning it, in order to protect persons and the environment from exposure to residual media.

For information on returning the instrument see chapter "10.1 Return".

9. Faults

Problem Causes Measure

No output signal No power supply

Cable break

Wiring reversed

Scales platform blocked

Gas cylinder scale defective due to incorrect power supply or current pulse

Constant output signal upon change in weight

Signal too low Power supply too low

Zero point signal too low or too high

Signal characteristic non-linear Mechanical overload Replace the gas cylinder scale

Scales platform blocked

Mechanical overload

Gas cylinder scale defective due to incorrect power supply or current pulse

Load too high

Mechanical overload

Mechanical overload Recalibrate the gas cylinder scale

Check voltage supply

Check the through drilling

Rectify polarity

Check the scale is free-standing

Replace the gas cylinder scale

Check the scale is free-standing

Replace the gas cylinder scale

Check the power supply

Rectify the load and/or power supply

Recalibrate the gas cylinder scale Replace the gas cylinder scale

Replace the gas cylinder scale

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9. Faults / 10. Return, disposal

CAUTION!

If faults cannot be eliminated by means of the measures listed above, the gas cylinder scale must be shut down immediately, and it must be ensured that signal is no longer present, and it must be prevented from being inadvertently put back into service. In this case, contact the manufacturer. If a return is needed, please follow the instructions given in chapter "10.1 Return".

10. Return and disposal

WARNING!

Residual media in dismounted gas cylinder scales can result in a risk to persons, the environment and equipment. Take sucient precautionary measures.

10.1 Return

WARNING! Strictly observe the following when shipping the instrument:

All instruments delivered to WIKA must be free from any kind of hazardous substances (acids, leachate, solutions, etc.).

When returning the instrument, use the original packaging or a suitable transport package.

Enclose the completed returns form with the instrument.

The return form ist available in the 'Service' section on www.wila.com

10.2 Disposal

Incorrect disposal can put the environment at risk. Dispose of instrument components and packaging materials in an environmentally compatible way and in accordance with the country-specic waste disposal regulations.

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17WIKA operating instructions gas cylinder scale model GCS-1