WIKA F73.100 Manuale utente
D
GB
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
E
F
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
2
D
GB
E
F
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
GB
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. Specications 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
GB
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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 certied 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 eect 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 insuciently qualied skilled personnel or unauthorised
modications to the gas actuated thermometer.
■
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, 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 ecient 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
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.
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 specications contained in these operating instructions
must be observed. Improper handling or operation of the gas
actuated thermometer outside of its technical specications 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 Qualication of personnel
WARNING!
Risk of injury if qualication is 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 country-
specic 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
sucient precautionary measures.
3. Specications
Specications
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 specications see WIKA data sheet TM 73.01, TM 74.01
or TM 75.01 and order documentation.
2. Safety / 3. Specications
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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
deection is transferred to the pointer via a dial movement.
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 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 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.
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 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 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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