WIKA F73.100 User manual

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Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
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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

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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
© WIKA Alexander Wiegand SE & Co. KG 2010
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

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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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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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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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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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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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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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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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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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If this is not possible, the following limit values must not be exceeded:
Dry gauges: Frequency range < 150 Hz
Acceleration < 0.7 g (7 m/s2)
Liquid-lled gauges: Frequency range < 150 Hz
Acceleration < 4 g (40 m/s2)
6. Commissioning, operation
After mounting, set the compensating valve (if
available) from CLOSE to OPEN.
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
welded or soldered joints.
When mounting a gas actuated dial indicating thermometer that can
be rotated and swivelled, specic 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!

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6. Commissioning, operation
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!
CAUTION!
When using thermowells, please
ensure that the stem does not
touch the bottom of the thermowell
since, due to the dierent
expansion coecients of the
materials, the stem may become
buckled at the bottom of the
thermowell.
(Formula for the calculation of the
stem length l1 see the respective
thermowell data sheet)
Thermowell
Stem
required safety
clearance

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7. Maintenance and cleaning
7.1 Maintenance
These gas actuated thermometers are maintenance-free!
The indicator should be checked once or twice every year. To do this,
the instrument must be disconnected from the process and checked
using a temperature calibrator.
Repairs must only be carried out by the manufacturer.
7.2 Cleaning
CAUTION!
■
Clean the thermometer with a moist cloth.
■
Wash or clean the disconnected thermometer before
returning it in order to protect personnel and the
environment from exposure to residual media.
■
Residual media in dismounted instruments can result
in a risk to personnel, the environment and equipment.
Take sucient precautionary measures.
For information on returning the instrument see chapter
"8.2 Returns".
7. Maintenance and cleaning

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8. Dismounting, return and disposal
8. Dismounting, return and disposal
WARNING!
Residual media in dismounted instruments can result in
a risk to personnel, the environment and equipment. Take
sucient precautionary measures.
8.1 Dismounting
WARNING!
Risk of burns!
Let the instrument cool down suciently before
dismounting! During dismounting there is a risk of
dangerously hot pressure media escaping.
8.2 Returns
WARNING!
Absolutely observe the following when shipping
the instrument: All instruments delivered to WIKA must
be free from any kind of hazardous substances (acids,
bases, solutions, etc.).
When returning the instrument, use the original packaging or a
suitable transport package.
To avoid damage:
1. Wrap the instrument in an antistatic plastic lm.
2. Place the instrument, along with the shock-absorbing 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 transport of a highly sensitive measuring
instrument.

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Enclose the completed returns form with the instrument.
The returns form is available on the internet:
www.wika.de / Service / Return
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 country-
specic waste disposal regulations.
8. Dismounting, return and disposal

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WIKA Betriebsanleitung Typen 73, 74, 75
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Inhalt
1. Allgemeines 18
2. Sicherheit 20
3. Technische Daten 22
4. Aufbau und Funktion 22
5. Transport, Verpackung und Lagerung 23
6. Inbetriebnahme, Betrieb 24
7. Wartung und Reinigung 27
8. Demontage, Rücksendung und Entsorgung 28
Inhalt

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1. Allgemeines
■
Die in der Betriebsanleitung beschriebenen Gasdruck-Thermo-
meter werden nach den neuesten Erkenntnissen konstruiert und
gefertigt. Alle Komponenten unterliegen während der Fertigung
strengen Qualitäts- und Umweltkriterien. Unsere Managementsys-
teme sind nach ISO 9001 und ISO 14001 zertiziert.
■
Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit
dem Gasdruck-Thermometer. Voraussetzung für sicheres Arbeiten
ist die Einhaltung aller angegebenen Sicherheitshinweise und
Handlungsanweisungen.
■
Die für den Einsatzbereich des Gasdruck-Thermometers gelten-
den örtlichen Unfallverhütungsvorschriften und allgemeinen
Sicherheitsbestimmungen einhalten.
■
Die Betriebsanleitung ist Produktbestandteil und muss in unmit-
telbarer Nähe des Gasdruck-Thermometers 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 bestim-
mungswidrige Verwendung, Nichtbeachten dieser Betriebsan-
leitung, Einsatz ungenügend qualizierten Fachpersonals sowie
eigenmächtiger Veränderung am Gasdruck-Thermometer.
■
Es gelten die allgemeinen Geschäftsbedingungen in den Verkaufs-
unterlagen.
■
Technische Änderungen vorbehalten.
■
Weitere Informationen:
- Internet-Adresse: www.wika.de / www.wika.com
- zugehöriges Datenblatt: TM 73.01, TM 74.01, TM 75.01
1. Allgemeines

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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 ezienten und störungsfreien
Betrieb hervor.
WARNUNG!
… weist auf eine möglicherweise gefährliche Situation
hin, die durch heiße Oberächen oder Flüssigkeiten zu
Verbrennungen führen kann, wenn sie nicht gemieden
wird.
1. Allgemeines

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2. Sicherheit
WARNUNG!
Vor Montage, Inbetriebnahme und Betrieb sicherstellen,
dass das richtige Gasdruck-Thermometer hinsichtlich
Messbereich, Ausführung und spezischen Messbe-
dingungen ausgewählt wurde. Die Verträglichkeit der
messstoberührten Bauteile des Prozessanschlusses
(Schutzrohr, Tauchrohr etc.) muss mit dem Messsto
geprüft werden.
Bei Nichtbeachten können schwere Körperverletzungen
und/oder Sachschäden auftreten.
Weitere wichtige Sicherheitshinweise benden sich in
den einzelnen Kapiteln dieser Betriebsanleitung.
2.1 Bestimmungsgemäße Verwendung
Die Gasdruck-Thermometer werden hauptsächlich in der Prozess-
industrie eingesetzt, um die Temperatur des Prozesses zu
überwachen.
Das Gasdruck-Thermometer ist ausschließlich für den hier beschrie-
benen bestimmungsgemäßen Verwendungszweck konzipiert und
konstruiert und darf nur dementsprechend verwendet werden.
Die technischen Spezikationen in dieser Betriebsanleitung sind
einzuhalten. Eine unsachgemäße Handhabung oder ein Betreiben
des Gasdruck-Thermometers außerhalb der technischen Spezika-
tionen macht die sofortige Stilllegung und Überprüfung durch einen
autorisierten WIKA-Servicemitarbeiter erforderlich.
Ansprüche jeglicher Art aufgrund von nicht bestimmungsgemäßer
Verwendung sind ausgeschlossen.
2. Sicherheit