WIKA 53 Series User manual

Bimetal thermometer, models 53, 54, 55 (ATEX) EN
Model R5502 Model S5413
Operating
instructions

2 WIKA operating instructions models 53, 54, 55 (ATEX)
EN
© 12/2010 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
WIKA®is a registered trademark in various countries.
Prior to starting any work, read the operating instructions!Keep for later
use!
Operating instructions
models 53, 54, 55 (ATEX)
Page 3 - 20
07/2021 EN based on 03/2018 RU (based on 11583747.05 10/2017 EN)

WIKA operating instructions models 53, 54, 55 (ATEX) 3
Content
1. General Information
4
2. Safety
6
3. Specifications
10
4. Design and function
10
5. Special conditions for use (conditions X)
11
6. Transport, packaging and storage
14
7. Commissioning, operation
15
8. Maintenance and cleaning
17
9. Dismounting, return and disposal
18
Certificates and approvals can be found at www.wika.com.
Content
EN
07/2021 EN based on 03/2018 RU (based on 11583747.05 10/2017 EN)

1. General information
1. General information
■
Bimetal thermometers described in these operating
EN 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 certified to ISO 9001 and
ISO 14001.
■
These operating instructions contain important information on
handling the instrument. To ensure safe operation, all safety
instructions and operating instructions must be observed.
■
Observe the local accident prevention regulations and general
safety regulations, in effect 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 anytime.
■
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
insufficiently qualified skilled personnel or unauthorised
modifications to the instrument.
■
The general terms and conditions contained in the sales
documentation shallapply.
■
Subject to technical modifications.
4 WIKA operating instructions, models 53, 54, 55 (ATEX)
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1. General information
WIKA operating instructions models 53, 54, 55 (ATEX) 5
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Data sheet: TM 53.01, TM 54.01, TM 55.01
The instrument specifications indicated in the operational
documentation, can only be maintained if the instrument is used in
strict compliance with these operating instructions.
Explanation of symbols
EN
CAUTION!
... 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
efficient and trouble-free operation.
CAUTION!
... indicates a potentially dangerous situation in the
hazardous area that can result in serious injury or
death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in
burns caused by hot surfaces or liquids, if not avoided.
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2. Safety requirements
2. Safety requirements
CAUTION!
EN Before installing, commissioning and operation,
ensure that the appropriate bimetal thermometer has
been selected in terms of measuring range, design and
specific 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 property.
Further important safety instructions can be found in the
individual chapters of these operating instructions.
2.1 Intended use
These bimetal thermometers are used for measuring temperature in
hazardous areas of industrialapplications.
The instrument has been designed and built solely for the intended
use described here, and may only be used accordingly.
The technical specifications contained in these operating
instructionsmust be observed. Improper handling or operation of
the instrument outside of its technical specifications 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.
6 WIKA operating instructions, models 53, 54, 55 (ATEX)
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2. Safety requirements
2.2 Personnel qualification
CAUTION!
Risk of injury should qualification be insufficient!
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 qualifications described
below.
■
Keep unqualified personnel away fromhazardous
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-specific
regulations, current standards and directives, are capable of carrying
out the work described and independently recognising potential
hazards.
2.3 Additional safety instructions for instruments per ATEX
CAUTION!
Non-observance of these instructions and their contents
may result in the loss of explosion protection.
CAUTION!
It is imperative that the application conditions and
safety requirements of the EC-type examination
certificate are followed.
Temperature measuring instruments must be earthed via
the process connection!
EN
WIKA operating instructions models 53, 54, 55 (ATEX) 7
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2. Safety requirements
8 WIKA operating instructions models 53, 54, 55 (ATEX)
Bimetal thermometers contain no internal heat source, and, when
correctly installed and operated, cause no increase in temperature!
EN 2.4 Special hazards
CAUTION!
Observe the information given in the applicable type
examination certificate and the relevant country-specific
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 property.
For additional important safety instructions for
instruments with ATEX approval, see chapter 2.3
“Additional safety instructions for instruments per ATEX”.
CAUTION!
Residual media in the dismounted instruments can
result in a risk to persons, equipment and the
environment. Takesufficient precautionary measures.
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2. Safety requirements
WIKA operating instructions models 53, 54, 55 (ATEX) 9
2.5 Labelling, safety marks
Product label (example)


EN


Ex м
Before mounting and commissioning the
instrument, ensure you read the operating
instructions!
Do not fill the instruments with filling liquidsubsequently.
List of critical failures
1. The integrity of the case is compromised.
2. The temperature measurement function is impaired.
Possible personnel errors
Installation and connection of the instrument not in accordance with these operating instructions,
which may lead to malfunctions.
Method of elimination:
- dismount the instrument
- install and connect the instrument in accordance with these operating instructions.
Limit state parameters
1. The case starts to lose its integrity.
2. Increased response time.
07/2021 EN based on 03/2018 RU (based on 11583747.05 10/2017 EN)

3. Specifications / 4. Design and ...
3. Specifications
EN
For further specifications see WIKA data sheet TM 53.01,
TM 54.01 or TM 55.01 and order documentation.
4. Design and function
4.1 Descrition
The bimetal thermometers of this series are intended for installation
in pipelines, vessels, plant and machinery.
10 WIKA operating instructions, models 53, 54, 55 (ATEX)
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Specifications
Model 53
Model 54
Model 55
Measuring
element
Bimetal coil
Nominal size
3", 5"
63,80,100, 160
63,100,160
Instrument version
■
Model A5x
■
Model R5x
■
Model S5x
Back mount (axial)
Lower mount (radial)
Back mount, case can rotate and swivel
Permissible ambient
temperature
-20 ... +60 °C max.
-50 ... +60 °C
Working pressure
■
Continuous load(1
year)
■
Short term
(max. 24 h)
Measuring range (EN 13190)
Scale range (EN 13190)
Case, ring
Stainless steel 1.4301 (304)
Stem, process
connection
Stainless steel 1.4571 (316Ti)
Ingress protection
IP65 per EN/IEC 60529
IP66, liquid-filled

5. Special conditions for use (X conditions)
Sheath and case are made of stainless steel. To allow fitting to
the process, different installation lengths and process
connections are available.
Through the high protection class of the thermometer IP and its
liquid damping, operation under vibration conditions is possible.
4.2 Scope of delivery
Cross-check scope of delivery with delivery note.
5. Special conditions for use (X conditions)
- Thermometers (mechanics) contain no internal heat source,
and, when correctly installed and operated, cause no increase in
temperature. The temperature class and maximum surface
temperature are determined by the instrument design and the
ignition temperature of the surrounding explosive gas and/or
dust environment (atmosphere) according to the manufacturer's
technical documentation;
- Thermometers with model 831 electrical contacts must be
connected to intrinsically safe circuits of duly certified products
(safety barriers);
- Installation, operation, and maintenance of instruments are
carried out in accordance with the manufacturer’s instructions
according to its technical documentation;m the process which
exceeds the ignition temperature of the explosive gas and/or
- Heat return flow from the process which exceeds the ignition
temperature of the explosive gas and/or dust environment
(atmosphere) surrounding the instrument case is not permitted
and must be prevented through appropriate thermal insulation.
WIKA operating instructions models 53, 54, 55 (ATEX) 13

6. Transport, packaging and storage
6. Transport, packaging and storage
EN 6.1 Transport
Check instrument for any damage that may have been caused by
transport. Obvious damage must be reported immediately.
6.2 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).
6.3 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
Store the instrument in its original packaging in a location that fulfils
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 film.
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.
CAUTION!
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.
14 WIKA operating instructions, models 53, 54, 55 (ATEX)
07/2021 EN based on 03/2018 RU (based on 11583747.05 10/2017 EN)

Installation with
open-ended spanner
The use of liquid damping is always recommended for
temperatures near the dew point (±1 °C around 0 °C).
EN
7.Commissioning, operation
The bimetal thermometermust be earthed via the process
connection!
When screwing the instruments in, the force required to do this
must not be applied through the case! but only through the spanner
flats provided for this purpose and using a suitable tool.
When mounting a bimetal dial indicating thermometer that can be
rotated and swivelled, the specific 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.
WIKA operating instructions models 53, 54, 55 (ATEX) 15
6.Transport ... / 7.Commissioning ...
07/2021 EN based on 03/2018 RU (based on 11583747.05 10/2017 EN)

7.Commissioning, operation
Thermo-
well
Stem
Required
safety
clearance
CAUTION!
When using a thermowell, make
sure that the stem does not touch
the bottom of the thermowell
since, due to the different
expansion coefficients of the
materials, the stem may become
buckled at the bottom of the
thermowell.
(For the formula for the
calculation of the insertion
length l1, see the respective
thermowell's data sheet)
EN
3. Position the indicator as required, tighten the hexagon bolts
and slotted screws, and finally tighten the lock nut or union
nut firmly.
When using thermowells, they must be filled 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.
CAUTION!
Do not fill hot thermowells. There is a risk of the oil
spraying out!
16 WIKA operating instructions models 53, 54, 55 (ATEX)
loosening
Make sure to loosen the
screwson the opposite side
as well!
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8. Maintenance and cleaning / 9. Dismounting ...
8. Maintenance and cleaning
8.1 Maintenance
These bimetal 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 or authorised
organisations.
8.2 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.
■
Residual media in the dismounted instrument can
result in a risk to personnel, the environment and
equipment. Take sufficient precautionary measures.
For information on returning the instrument see chapter
9.2 “Returns”.
9. Dismounting, return and disposal
CAUTION!
Residual media in the dismounted instrument can result in
a risk to persons, the environment and equipment.
Take sufficient precautionary measures.
EN
WIKA operating instructions models 53, 54, 55 (ATEX) 17
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9. Dismounting, return and disposal
18 WIKA operating instructions models 53, 54, 55 (ATEX)
9.1 Dismounting
CAUTION!
EN Risk of burns!
Let the instrument cool down sufficiently before
dismounting it! During dismounting there is a risk of
dangerously hot pressure media escaping.
9.2 Return
CAUTION!
Absolutely observe 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 packaging.
To avoid damage:
1. Wrap the instrument in an antistatic plastic film.
2. Place the instrument, along with shock-absorbent material, in the
packaging. Place shock-absorbent material evenlyon all sides of
the transport packaging.
3. If possible, place a bag, containing a desiccant,inside the
packaging.
4. Label the shipment astransport of a highly sensitive
measuring instrument.
Information on returns can be found under the heading
“Service” on our local website.
9.3
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-specific waste disposal regulations.
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WIKA operating instructions models 53, 54, 55 (ATEX) 19
EN
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20 WIKA operating instructions models 53, 54, 55 (ATEX)
WIKA subsidiaries worldwide can be found online atwww.wika.com.
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. [phone]
Fax [phone]
[e-mail]
www.wika.de
07/2021 EN based on 03/2018 RU (based on 11583747.05 10/2017 EN)