73
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
Gas actuated thermometer per ATEX, models 73, 74
Gasdruck-Thermometer nach ATEX, Typen 73, 74
Thermomètre à dilatation de gaz selon ATEX, types 73, 74
Termómetro de dilatación de gas según ATEX, modelos 73, 74
CE Ex
II 2 GD c TX
Model F73.100
Model R74.100
GB
D
F
E
Operating instructions models 73, 74 (ATEX)
GB
Page 3 - 18
Betriebsanleitung Typen 73, 74 (ATEX)
D
Mode d'emploi types 73, 74 (ATEX)
F
Manual de instrucciones modelos 73, 74 (ATEX)
E
© 2010 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA® is a registered trademark in various countries.
WIKA® ist eine geschützte Marke in verschiedenen Ländern.
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!
Seite 19 - 34
Page 35 - 50
Página 51 - 66
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2
WIKA operating instructions models 73, 74 (ATEX)
Contents
Contents
1. General information 4
2. Safety 6
3. Specications 10
4. Design and function 10
5. Transport, packaging and storage 11
6. Commissioning, operation 12
7. Maintenance and cleaning 15
8. Dismounting, return and disposal 16
Appendix 1: EC declaration of conformity 18
Declarations of conformity can be found online at www.wika.com.
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WIKA operating instructions models 73, 74 (ATEX) 3
1. General information
1. General information
■
The gas actuated thermometers described in these operating
GB
instructions have been designed and manufactured using state-ofthe-art technology. All components are subject to stringent quality
and environmental criteria during production. Our management
systems are certied 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 local accident prevention regulations and general
safety regulations in eect for the instrument's range of use.
■
The operating instructions are part of the instrument 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 intended use,
non-compliance with these operating instructions, assignment
of insuciently qualied skilled personnel or unauthorised
modications to the instrument.
■
The general terms and conditions, contained in the sales
documentation, shall apply.
■
Subject to technical modications.
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: TM 73.01, TM 74.01
4 WIKA operating instructions models 73, 74 (ATEX)
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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, which can
result in light injuries or damage to equipment or the
environment, if not avoided.
Information
… points out useful tips, recommendations and
information for ecient and trouble-free operation.
WARNING!
... indicates a potentially dangerous situation in the
hazardous area, which can result in serious injury or
death, if not avoided.
WARNING!
... indicates a potentially dangerous situation which can
result in burns caused by hot surfaces or liquids if not
avoided.
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WIKA operating instructions models 73, 74 (ATEX) 5
2. Safety
2. Safety
WARNING!
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2.1 Intended use
These gas actuated thermometers are used for measuring
temperature in hazardous areas of industrial applications.
The instrument has been designed and built solely for the intended
use described here, and may only be used accordingly.
The technical specications contained in these operating instructions
must be observed. Improper handling or operation of the instrument
outside of its technical specications requires the instrument to be
taken out of service immediately and inspected by an authorised
WIKA service engineer.
Before installation, commissioning and operation, ensure
that the appropriate gas actuated thermometer has been
selected in terms of measuring range, design and specic
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.
The manufacturer shall not be liable for claims of any type based on
operation contrary to the intended use.
6 WIKA operating instructions models 73, 74 (ATEX)
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2. Safety
2.2 Personnel qualication
WARNING!
Risk of injury should qualication be insucient!
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 qualications described below.
■
Keep unqualied 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 countryspecic regulations, current standards and directives, are capable
of carrying out the work described and of independently recognising
potential hazards.
2.3 Additional safety instructions for instruments per ATEX
WARNING!
Non-observance of these instructions and their contents
may result in the loss of explosion protection.
WARNING!
It is imperative that the application conditions and safety
requirements are followed.
Temperature measuring instruments must be earthed via
the process connection!
GB
Gas actuated thermometers contain no internal heat source,
and, when correctly installed and operated, cause no increase in
temperature!
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WIKA operating instructions models 73, 74 (ATEX) 7
2. Safety
A heat return ow from the process, which exceeds the ignition
temperature of the surrounding hazardous area, is not permitted and
must be prevented through appropriate thermal insulation!
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The following surface temperatures must not be exceeded:
Potentially explosive atmosphere
Gas, air, vapour, mist Dust, air
Permissible
surface
temperature
1) If dust should settle on the instrument (up to a max. 5 mm layer thickness), a safety margin
of 75 K must be maintained between the minimum ignition temperature of the dust layer
and the surface temperature! For thicker dust layers a greater safety margin should be
incorporated!
2.4 Special hazards
≤ 80 % of the ignition
temperature in °C
≤ 2/3 of the minimum
ignition temperature in °C
WARNING!
Observe the information given in the applicable type
examination certicate and the relevant countryspecic regulations for installation and use in potentially
explosive atmospheres (e.g. IEC 60079-14, NEC, CEC).
Non-observance can result in serious injury and/or
damage to the equipment.
For additional important safety instructions for instruments
with ATEX approval see chapter 2.3 "Additional safety
instructions for instruments per ATEX".
1)
WARNING!
Residual media in dismounted instruments can result in
a risk to persons, the environment and equipment. Take
sucient precautionary measures.
8 WIKA operating instructions models 73, 74 (ATEX)
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2. Safety
2.5 Labelling, safety marks
Product label
Model
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.
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Year of manufacture
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WIKA operating instructions models 73, 74 (ATEX) 9
3. Specications / 4. Design and function
3. Specications
Specications
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Measuring element Gas-pressure inert gas lling
Nominal size 100, 160, 144 x 144 100
Instrument version
■
Model A7x
■
Model R7x
■
Model S73
■
Model F73
Permissible ambient
temperature
Working pressure
■
Continuous load (1 year)
■
short term (max. 24 h)
Case, ring
Stem, process connection
Ingress protection
per EN 60529/ IEC 529
Model 73 Model 74
Back mount (axial)
Lower mount (radial)
Back mount, adjustable
stem and dial
Instruments with capillaries
0 ... 40 °C
Measuring range (EN 13190)
Scale range (EN 13190)
Stainless steel 1.4301
Stainless steel 1.4571
IP 65
IP 66 (liquid-lled)
Stainless steel 1.4435
IP 65
(option: IP 66)
For further specications see WIKA data sheets TM 73.01 or
TM 74.01 and order documentation.
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 stem. The pressure deforms the measuring spring and the
deection is transferred to the pointer via a dial movement.
10 WIKA operating instructions models 73, 74 (ATEX)
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4. Design, function / 5. Transport, packaging ...
Fluctuations in ambient temperature aecting 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 EN 13190
between -200 ... +700 °C
4.2 Scope of delivery
Cross-check scope of delivery with delivery note.
5. Transport, packaging and storage
5.1 Transport
Check instrument for any damage that may have been caused by
transport. 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
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
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WIKA operating instructions models 73, 74 (ATEX) 11
5. Transport, ... / 6. Commissioning, operation
Store the instrument in its original packaging in a location that fulls
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.
GB
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 importance 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).
6. Commissioning, operation
The gas actuated thermometer must be earthed via the
process connection!
When screwing the instruments 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.
Installation with
open-ended spanner
12 WIKA operating instructions models 73, 74 (ATEX)
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6. Commissioning, operation
■
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 insucient, if
the mounting ttings are connected to a good thermal conductor
(metal plate or similar) and there is a considerable dierence
in temperature between the measuring and mounting element
temperatures.
■
Mount the indicator case 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.
If this is not possible, the following limit values must not be exceeded:
GB
Dry gauges: Frequency range < 150 Hz
Acceleration < 0.7 g (7 m/s
Liquid-lled gauges: Frequency range < 150 Hz
Acceleration < 2 g (20 m/s
2
)
2
)
After mounting, set the compensating valve (if
available) from CLOSE to OPEN.
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WIKA operating instructions models 73, 74 (ATEX) 13
6. Commissioning, operation
The liquid lling must be checked on a regular basis.
The liquid level must not drop below 75 % of the gauge diameter.
Heavy shocks, oscillations and vibrations lead to imprecise values,
increased wear in the transmission mechanism, and fractures on
GB
welded or soldered joints.
When mounting a gas actuated thermometer that can be rotated
and swivelled, the specic instructions must be followed. In order to
set the indicator to the desired position, the following steps must be
taken:
1. The lock nut or union nut must be loosened at the process
connection.
2. The hexagon bolts and slotted screws at the swivel joint must be
loosened.
loosening
Make sure to loosen the
screws on the opposite side
as well!
3. Position the indicator as required, tighten the hexagon bolts and
slotted screws, and nally tighten the lock nut or union nut rmly.
When using thermowells, they must be lled with a thermal contact
medium in order to reduce the heat transfer resistance between the
outer wall of the sensor and the inner wall of the thermowell. The
working temperature of the thermal compound is -40 ... +200 °C.
WARNING!
Do not ll hot thermowells. There is a risk of the oil
spraying out!
14 WIKA operating instructions models 73, 74 (ATEX)
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6. Commissioning, operation / 7. Maintenance
CAUTION!
When using thermowells, please
ensure that the stem does not
touch the bottom of the thermowell
since, due to the dierent
expansion coecients of the
materials, the stem may become
buckled at the bottom of the
Thermowell
Stem
Required safety
clearance
thermowell.
(Formula for the calculation of
the insertion length l1 see the
respective thermowell data sheet)
7. Maintenance and cleaning
7.1 Maintenance
These gas actuated thermometers are maintenance-free!
The indicator should be checked once or twice every year. For this
the instrument must be disconnected from the process and checked
using a temperature calibrator.
Repairs must only be carried out by the manufacturer.
...
GB
7.2 Cleaning
CAUTION!
■
Clean the thermometer with a moist cloth.
■
Wash or clean the thermometer before returning it, in
order to protect personnel and the environment from
exposure to residual media.
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WIKA operating instructions models 73, 74 (ATEX) 15
7. Maintenance, cleaning / 8. Dismounting, ...
■
Residual media in dismounted instruments can result in
a risk to persons, the environment and equipment. Take
sucient precautionary measures.
GB
For information on returning the instrument see chapter
8.2 "Returns".
8. Dismounting, return and disposal
WARNING!
Residual media in dismounted instruments can result in
a risk to persons, the environment and equipment. Take
sucient precautionary measures.
8.1 Dismounting
WARNING!
Risk of burns!
Let the instrument cool down suciently before
dismounting it! During dismounting there is a risk of
dangerously hot pressure media escaping.
8.2 Returns
WARNING!
Absolutely observe 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.
16 WIKA operating instructions models 73, 74 (ATEX)
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8. Dismounting, return and disposal
To avoid damage:
1. Wrap the instrument in an antistatic plastic lm.
2. Place the instrument, along with shock-absorbent material, in the
packaging. Place shock-absorbent material evenly on all sides of
the shipping box.
3. If possible, place a bag containing a desiccant inside the
packaging.
4. Label the shipment as carriage of a highly sensitive measuring
instrument.
Enclose the completed returns form with the instrument.
The return form is available in the 'Service' section on
www.wika.com.
8.3 Disposal
Incorrect disposal may endanger the environment.
Dispose of instrument components and packaging materials in an
environmentally compatible way and in accordance with the countryspecic waste disposal regulations.
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WIKA operating instructions models 73, 74 (ATEX) 17
Appendix 1: EC declaration of conformity
GB
18 WIKA operating instructions models 73, 74 (ATEX)
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Inhalt
Inhalt
1. Allgemeines 20
2. Sicherheit 22
3. Technische Daten 26
4. Aufbau und Funktion 26
5. Transport, Verpackung und Lagerung 27
6. Inbetriebnahme, Betrieb 28
7. Wartung und Reinigung 31
8. Demontage, Rücksendung und Entsorgung 32
Anlage 1: EG-Konformitätserklärung 34
Konformitätserklärungen nden Sie online unter www.wika.de.
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1. Allgemeines
1. Allgemeines
■
Die in der Betriebsanleitung beschriebenen Gasdruck-Thermometer werden nach den neuesten Erkenntnissen konstruiert und
gefertigt. Alle Komponenten unterliegen während der Fertigung
strengen Qualitäts- und Umweltkriterien. Unsere Management-
D
systeme sind nach ISO 9001 und ISO 14001 zertiziert.
■
Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit
dem Gerät. Voraussetzung für sicheres Arbeiten ist die Einhaltung
aller angegebenen Sicherheitshinweise und Handlungsanweisungen.
■
Die für den Einsatzbereich des Gerätes geltenden örtlichen Unfallverhütungsvorschriften und allgemeinen Sicherheitsbestimmungen
einhalten.
■
Die Betriebsanleitung ist Produktbestandteil und muss in unmittelbarer Nähe des Gerätes für das Fachpersonal jederzeit zugänglich
aufbewahrt werden.
■
Das Fachpersonal muss die Betriebsanleitung vor Beginn aller
Arbeiten sorgfältig durchgelesen und verstanden haben.
■
Die Haftung des Herstellers erlischt bei Schäden durch bestimmungswidrige Verwendung, Nichtbeachten dieser Betriebsanleitung, Einsatz ungenügend qualizierten Fachpersonals sowie
eigenmächtiger Veränderung am Gerät.
■
Es gelten die allgemeinen Geschäftsbedingungen in den Verkaufsunterlagen.
■
Technische Änderungen vorbehalten.
■
Weitere Informationen:
- Internet-Adresse: www.wika.de / www.wika.com
- zugehöriges Datenblatt: TM 73.01, TM 74.01
20 WIKA Betriebsanleitung Typen 73, 74 (ATEX)
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1. Allgemeines
Symbolerklärung
WARNUNG!
… weist auf eine möglicherweise gefährliche Situation hin,
die zum Tod oder zu schweren Verletzungen führen kann,
wenn sie nicht gemieden wird.
VORSICHT!
… weist auf eine möglicherweise gefährliche Situation
hin, die zu geringfügigen oder leichten Verletzungen bzw.
Sach- und Umweltschäden führen kann, wenn sie nicht
gemieden wird.
Information
… hebt nützliche Tipps und Empfehlungen sowie
Informationen für einen ezienten und störungsfreien
Betrieb hervor.
WARNUNG!
… weist auf eine möglicherweise gefährliche Situation
im explosionsgefährdeten Bereich hin, die zum Tod oder
zu schweren Verletzungen führen kann, wenn sie nicht
gemieden wird.
WARNUNG!
… weist auf eine möglicherweise gefährliche Situation
hin, die durch heiße Oberächen oder Flüssigkeiten zu
Verbrennungen führen kann, wenn sie nicht gemieden
wird.
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