WIKA F73.100 Manuel utilisateur

Operating instructions

Betriebsanleitung

Mode d'emploi

Manual de instrucciones

Model F73.100 Model R74.100 Model R75.100

Gas actuated thermometer, models 73, 74, 75

Gasdruck-Thermometer, Typen 73, 74, 75

Thermomètre à dilatation de gaz, types 73, 74, 75

Termómetro de dilatación de gas, modelos 73, 74, 75

Operating instructions models 73, 74, 75

Page 3 - 16

Betriebsanleitung Typen 73, 74, 75

Seite 17 - 30

Mode d'emploi types 73, 74, 75

Page 31 - 44

Manual de instrucciones modelos 73, 74, 75

Página 45 - 57

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 posterior!

12099431.05 10/2010 GB/D/F/E

WIKA operating instructions models 73, 74, 75

12099431.05 10/2010 GB/D/F/E

WIKA operating instructions models 73, 74, 75 3

Contents

1. General information 4

2. Safety 5

3. Specications 7

4. Design and function 8

5. Transport, packaging and storage 8

6. Commissioning, operation 10

7. Maintenance and cleaning 13

8. Dismounting, return and disposal 14

Contents

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4 WIKA operating instructions models 73, 74, 75

1. General information

■

The gas actuated thermometers described in these operating

instructions have 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 gas actuated thermometer. Occupational safely requires

that all safety instructions and work instructions are observed.

■

Observe the local accident prevention regulations and general

safety regulations in eect for the gas actuated thermometer's

range of use.

■

The operating instructions are part of the instrument and must be

kept in the immediate vicinity of the gas actuated thermometer and

be 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 manufacturers liability is void in the case of any damage

caused by using the product contrary to its intended use,

non-compliance with these operating instructions, assignment

of insuciently qualied skilled personnel or unauthorised

modications to the gas actuated thermometer.

■

The general terms and conditions contained in the sales

documentation shall apply.

■

Subject to technical modications.

■

Further information:

- Internet address: www.wika.de / www.wika.com

- Relevant data sheet: TM 73.01, TM 74.01, TM 75.01

1. General information

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WIKA operating instructions models 73, 74, 75 5

Explanation of symbols

WARNING!

... indicates a potentially dangerous situation which can

result in serious injury or death if not avoided.

CAUTION!

... indicates a potentially dangerous situation which can

result in light injuries or damage to the 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 which can

result in burns caused by hot surfaces or liquids if not

avoided.

2. Safety

WARNING!

Before installation, commissioning and operation, ensure

that the appropriate gas actuated thermometer has

been selected in terms of measuring range, design and

specic measuring conditions. The compatibility of the

wetted parts of the process connection (thermowell,

thermowell stem) with the medium must be tested.

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.

1. General information / 2. Safety

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6 WIKA operating instructions models 73, 74, 75

2.1 Intended use

These gas actuated thermometers are mainly used in the process

industry for monitoring the process temperature.

The gas actuated thermometer has been designed and built solely for

the intended use described here and may only be used accordingly.

The technical specications contained in these operating instructions

must be observed. Improper handling or operation of the gas

actuated thermometer outside of its technical specications requires

the instrument to be taken out of service immediately and inspected

by an authorised WIKA service engineer.

The manufacturer shall not be liable for claims of any type based on

operation contrary to the intended use.

2.2 Qualication of personnel

WARNING!

Risk of injury if qualication is 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 of independently recognising

potential hazards.

2. Safety

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WIKA operating instructions models 73, 74, 75 7

2.3 Special hazards

WARNING!

Residual media in dismounted instruments can result in

a risk to personnel, the environment and equipment. Take

sucient precautionary measures.

3. Specications

Specications

Model 73 Model 74 Model 75

Measuring element Gas-pressure inert gas lling, physiologically safe

Nominal size 100, 160, 144 x 144 100

Instrument version

■

Model A7x

■

Model R7x

■

Model S7x

■

Model F7x

■

Model Q7x

Rear mount (axial)

Lower mount (radial)

Rear mount, adjustable stem and dial

Instruments with capillaries

Instruments in panel mounting design

Permissible ambient

temperature

0 ... 40 °C 0 ... 70 °C

Working pressure

■

Continuous load (1 year)

■

short term (max. 24 h)

Measuring range (DIN EN 13190)

Scale range (DIN EN 13190)

Case, ring

Stainless steel

Sheath, process

connection

Stainless steel 1.4571 Stainless

steel 1.4435

Stainless

steel 1.4571

Ingress protection

per EN 60529/ IEC 529

IP 65

IP 66 (liquid-lled)

IP 66

For further specications see WIKA data sheet TM 73.01, TM 74.01

or TM 75.01 and order documentation.

2. Safety / 3. Specications

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8 WIKA operating instructions models 73, 74, 75

4. Design, function / 5. Transport, packaging ...

4. Design and function

4.1 Description

The gas actuated thermometer consists of a stem, capillary and

Bourdon tube in the casing. These parts are combined to form a

single unit. The entire measuring system is lled with an inert gas

under pressure.

A change in temperature will cause a change in internal pressure

in the sheath. The pressure deforms the measuring spring and the

deection is transferred to the pointer via a dial movement.

Fluctuations in ambient temperature aecting the casing can be

neglected, as a bimetal compensation element is tted between the

dial movement and the measuring spring.

Scale ranges with accuracy class 1 per DIN EN 13190

between -200 ... +700 °C

4.2 Scope of delivery

Cross-check the scope of delivery with the delivery note.

5. Transport, packaging and storage

5.1 Transport

Check instrument 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).

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WIKA operating instructions models 73, 74, 75 9

5.3 Storage

Permissible conditions at the place of storage:

Storage temperature: -20 ... +60 °C

Avoid exposure to the following factors:

■

Direct sunlight or proximity to hot objects

■

Mechanical vibration, mechanical shock (putting it down hard)

■

Soot, vapour, dust and corrosive gases

■

Potentially explosive environments, ammable atmospheres

Store the instrument in its original packaging in a location that fulls

the conditions listed above. If the original packaging is not available,

pack and store the thermometer as described below:

1. Wrap the thermometer in an antistatic plastic lm.

2. Place the thermometer, along with shock-absorbent material, in the

packaging.

3. If stored for a prolonged period of time (more than 30 days), place a

bag containing a desiccant inside the packaging.

WARNING!

Before storing the instrument (following operation),

remove any residual media. This is of particular impor-

tance if the medium is hazardous to health, e.g. caustic,

toxic, carcinogenic, radioactive, etc.

The use of liquid damping is always recommended for

temperatures near the dew point (±1 °C around 0 °C).

5. Transport, packaging and storage

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10 WIKA operating instructions models 73, 74, 75

6. Commissioning, operation

When screwing the gauges in, the force required to do this must not

be applied through the casing, but only through the spanner ats

provided for this purpose and using a suitable tool.

6. Commissioning, operation

Installation with

spanner

■

If possible, the entire length of the stem should be exposed to the

temperature being measured. However, at least the length of the

active part that corresponds to the length of the gas expansion

vessel (active length).

■

In pipelines or other measuring points, the temperature probe must

be angled as far towards the ow as possible.

■

Errors in thermal conduction occur if the area where the

temperature is to be measured is so small, that the mass of the

temperature probe acts as thermal capacity. Errors in thermal

conduction may also occur if the immersion depth is insucient, if

the mounting ttings are connected to a good thermal conductor

(metal plate or similar) and there is a considerable dierence

in temperature between the measuring and mounting element

temperatures.

■

Mount the dial casing free from vibration. If necessary, it is possible

to isolate the instrument from the mounting point by installing

a exible connection line between the measuring point and the

thermometer and mounting the instrument on a suitable bracket.

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