WIKA 70-8xx User Manual [en, de, es, fr]
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
Expansion thermometer with/without micro switch, model 70
Tensionsthermometer mit/ohne Mikroschalter, Typ 70
Thermomètres à expansion avec/sans microrupteur, type 70
Termómetro de tensión con/sin microswitch, modelo 70
GB
D
F
E
Expansion thermometer
without micro switch, model 70
Expansion thermometer
with micro switch, model 70
Operating instructions model 70 Page 3 - 16
GB
Betriebsanleitung Typ 70 Seite 17 - 30
D
Mode d'emploi type 70 Page 31 - 44
F
Manual de instrucciones modelo 70 Página 45 - 57
E
© 2012 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!
2
WIKA operating instructions expansion thermometer, model 70
11472988.02 04/2013 GB/D/F/E
Contents
Contents
1. General information 4
2. Safety 5
3. Specications 8
4. Design and function 8
5. Transport, packaging and storage 9
6. Commissioning, operation 10
7. Indicator check 12
8. Zero adjustment 12
9. Maintenance and cleaning 13
10. Faults 14
GB
11. Dismounting, return and disposal 14
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
3
1. General information
1. General information
The expansion thermometers described in the operating instructions are manufactured
GB
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 instrument.
Working safely requires that all safety instructions and work instructions are observed.
Observe the relevant local accident prevention regulations and general safety
regulations for the instrument‘s range of use.
The operating instructions are part of the product 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 81.01, TV 28.01
- Application consultant:
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 that can result in light injuries or
damage to equipment or the environment, if not avoided.
4
Tel.: (+49) 9372/132-0
Fax: (+49) 9372/132-406
E-mail: info@wika.de
WIKA operating instructions expansion thermometer, model 70
11472988.02 04/2013 GB/D/F/E
1. General information / 2. Safety
Information
... points out useful tips, recommendations and information for ecient and
trouble-free operation.
DANGER!
... identies hazards caused by electric power. Should the safety instructions
not be observed, there is a risk of serious or fatal injury.
WARNING!
... indicates a potentially dangerous situation that 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
thermometer has been selected in terms of measuring range, design and
specic measuring conditions.
Non-observance can result in serious injury and/or damage to the equipment.
GB
Further important safety instructions can be found in the individual chapters of
these operating instructions.
2.1 Intended use
The model 70 expansion thermometers are general-purpose temperature measurement
instruments/temperature controllers (with micro switch) for gaseous, liquid and highlyviscous process media.
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.
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
5
2. Safety
If the instrument is transported from a cold into a warm environment, the formation of
condensation may result in instrument malfunction. Before putting it back into operation,
wait for the instrument temperature and the room temperature to equalise.
GB
The manufacturer shall not be liable for claims of any type based on operation contrary to
the intended use.
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.
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 independently recognising potential hazards.
Special operating conditions require further appropriate knowledge, e.g. of aggressive
media.
2.3 Special hazards
WARNING!
For hazardous media such as oxygen, acetylene, ammable or toxic gases or
liquids, and refrigeration plants, compressors, etc., in addition to all standard
regulations, the appropriate existing codes or regulations must also be
followed.
WARNING!
To ensure safe working on the instrument, the operating company must ensure
that suitable rst-aid equipment is available and aid is provided whenever
required.
that the operating personnel are regularly instructed in all topics regarding
work safety, rst aid and environmental protection and know the operating
instructions and, in particular, the safety instructions contained therein.
6
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
2. Safety
DANGER!
Danger of death caused by electric current
Upon contact with live parts, there is a direct danger of death.
The instrument may only be installed and mounted by skilled personnel.
Operation using a defective power supply unit (e.g. short circuit from the
mains voltage to the output voltage) can result in life-threatening voltages at
the instrument!
WARNING!
Residual media at the dismounted instrument can result in a risk to persons,
the environment and the equipment.
Take sucient precautionary measures.
Do not use this instrument in safety or emergency stop devices. Incorrect use
of the instrument can result in injury.
Should a failure occur, aggressive media with extremely high temperature and
under high pressure or vacuum may be present at the instrument.
2.4 Labelling, safety marking
Product label
GB
Date of manufacture
Explanation of symbols
Before mounting and commissioning the instrument, ensure you read the
operating instructions!
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
Model
Switch points
7
3. Specications / 4. Design and function
3. Specications
Specications with micro switch without micro switch
GB
Nominal size in mm 100 63, 100, 160
Measuring principle Bourdon tube system
Filling medium Xylol, silicone oil or syltherm Xylol or silicone oil
Capillary entry lower mount or back mount
Case Stainless steel
Indication accuracy Class 2
Scale range -100 ... +400 °C
Measuring line Ø 2 mm, stainless steel 1.4571
Length of the measuring line Max. 10 m
Contact max. 2 micro switches (adjustable/xed)
Load data
Setting range from 10 % to 90 % of the full scale value
Standard switch dierential < 2 % of measuring range
Electrical connection via cable terminal box
Ingress protection
per EN 60529 / IEC 529
5 A, AC 48 V
The instruments do not provide for incorporated overcurrent
protectors. In order to prevent the contacts from welding through
overload, suitable protection systems must be implemented by
the operator.
Fixed, factory set to customer specication
IP 44 IP 65
For further specications, see WIKA data sheet TV 28.01 or TM 81.01 and the order
documentation.
4. Design and function
4.1 Description
The liquid-lled, closed measuring system consists of a temperature sensor, a capillary
and a Bourdon tube. The volume change as a consequence of the heat applied to the
temperature sensor, and thus the pressure change in the closed system, is transmitted
through the capillary to the Bourdon tube and then indicated on the dial by the angular
deection of the pointer shaft.
Temperature measuring instruments with micro switch (temperature controllers)
The switching disc (cam disc) connected to the pointer shaft actuates the switching
operation on the micro switch when the switch point is reached.
8
WIKA operating instructions expansion thermometer, model 70
11472988.02 04/2013 GB/D/F/E
4. Design, function / 5. Transport, packaging, storage
In addition to the standard version with 1 or 2 adjustable contacts, further combinations
are available, such as:
1 or 2 xed micro switches
1 xed and 1 adjustable micro switch
The switch points of the xed micro switches are marked on the product label.
4.2 Scope of delivery
Cross-check scope of delivery with delivery note.
5. Transport, packaging and storage
5.1 Transport
Check the 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).
GB
5.3 Storage
Permissible conditions at the place of storage:
Storage temperature: -20 ... +60 °C (DIN EN 13190)
Humidity: 35 ... 85 % relative humidity (no condensation)
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 instrument as
described below:
1. Place the instrument along with shock-absorbent material in the packaging.
2. If stored for a prolonged period of time (more than 30 days), place a bag containing a
desiccant inside the packaging.
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
9
5. Transport, packaging ... / 6. Commissioning, operation
WARNING!
Before storing the instrument (following operation), remove any residual
media. This is of particular importance if the medium is hazardous to health,
GB
6. Commissioning, operation
Please observe the following general requirements when mounting and operating the
instrument:
The scale range of the temperature control instrument should be selected so that the
maximum temperature present at the sensor does not exceed the scale range. Once
the switch point is exceeded, you should also be careful of any temperature rise that
occurs.
In operation, the instrument should not be exposed to any strong vibrations or shock
loadings.
Avoid soiling and strong uctuations of the ambient temperature.
Cutting the measuring line leads to the destruction of the instrument and, thus, to a
shut-down of the electrical output signal.
e.g. caustic, toxic, carcinogenic, radioactive, etc.
Electrical connection
The terminal connections are given on the product label which is located
around the edge of the housing.
6.1 Installation conditions
Before mounting the sensor, check whether the sensor material used (specied in the
delivery note) is chemically resistant/neutral to the medium being measured. This also
applies to thermowells.
Make sure that the suitable accessories required for fastening the case of the instrument
into the panel are available.
The accessories are either tted or located in a bag fastened to the thermometer.
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 expansion vessel (active length).
In pipelines or other measuring points, the temperature sensor must be positioned as
far towards the ow as possible.
When using thermowells, it must be ensured that the stem does not touch the bottom of
the thermowell.
10
WIKA operating instructions expansion thermometer, model 70
11472988.02 04/2013 GB/D/F/E
6. Commissioning, operation
Protect capillaries against bending. The smallest bending radius of the capillary should
not be less than 6 mm. Any bending or discontinuities of the capillary may result in the
failure of the instrument.
If the sensor is installed in a location which is exposed to shock and vibration, it is
essential that the capillary is coiled in several loops between the last attachment point
and the sensor, and free from tension. Any excess length must also be coiled, since
cutting would render the instrument unserviceable.
The welding or soldering of the capillary, as well as all permanent xing of the capillary,
should be avoided, since this can seriously damage the capillary and can impair the
operation of the instrument.
The dial casing must be mounted free from vibration. If necessary, it is possible to
isolate the installation from the mounting point, e.g. 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:
Frequency range < 150 Hz
Acceleration < 0.5 g (5 m/s
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.
2
)
GB
In thermometers with built-in micro switches, the contacts can chatter as a result of
vibrations, which can lead to an increase in contact wear and a displacement in the
desired contact point.
6.2 Ambient conditions
Unless the ingress protection of the thermometer‘s housing is specically identied
in the order conrmation, the instruments must be protected from humid air and other
aggressive atmospheres.
To ensure the best measuring accuracy possible, the ambient temperature on the
indicator case should be between 0 ... 40 °C. Higher or lower ambient temperatures can
cause indication errors.
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
11
7. Indicator check / 8. Zero adjustment
7. Indicator check
Indicator checks should only be carried out in comparison with a more accurate
instrument or, if possible, with a calibrated instrument. The temperature during the check
GB
must remain constant.
Fluctuating temperatures can lead to reading errors caused by the dierent response
times of the sensors.
With thermometers without thermowells, with a full and correct insertion length, a
minimum waiting time of 5 minutes must be maintained for temperature equalisation.
Temperature checks using thermometers with sensors assembled with thermowells can,
in many cases, only result in a reference temperature at the instrument under test, due to
permanent heat dissipation caused by the thermowell. In temperature applications tted
with static checking thermometers (e.g. pipeline systems), permanent osets in reference
temperatures can also be caused by the measuring path. Ambient temperatures around
the indicator case which dier substantially from room temperature can lead to steady
indication errors with constant ambient temperatures and to varying indication errors with
uctuating ambient temperatures.
Permanent indication errors caused by the ageing of the measuring system can be
ignored, as they only account for a fraction of the indication accuracy.
8. Zero adjustment
WARNING!
Any interference with or modication to the instrument will invalidate the
warranty!
A zero adjustment may only be carried out by the manufacturer or in adequately equipped
workshops by qualied persons.
The electrical connection must only be made by qualied skilled personnel.
Connection of the switch via terminal box
Conductor cross-section max. 1.5 mm
The terminal assignment is stated on the connection label of the thermometer
12
WIKA operating instructions expansion thermometer, model 70
2
11472988.02 04/2013 GB/D/F/E
8. Zero adjustment / 9. Maintenance and cleaning
Adjusting the set pointer (with micro switch)
The adjustment of the set point is achieved using the adjustment key in the window.
The set pointers for the micro switches are freely adjustable over the full scale range. For
reasons of switching accuracy and the service life of the mechanical measuring systems,
the switch points should be between 10 % and 90 % of the measuring range.
The switch points with a xed setting to customer requirements cannot be altered
subsequently.
As a result of surface oxidation on the contact surfaces, especially with intrinsically-safe
switching (small voltages and low currents), aws that can lead to contact erosion can
arise as a result of the developed isolation resistance and with higher contact loads.
9. Maintenance and cleaning
9.1 Maintenance
These expansion thermometers are maintenance-free.
The indicator and switching function 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 exclusively be carried out by the manufacturer or by appropriately qualied
personnel.
9.2 Cleaning
GB
CAUTION!
Prior to cleaning, disconnect the instrument from the mains.
Clean the instrument with a moist cloth (soap water).
Electrical connections must not come into contact with moisture.
Ensure that all parts are dry before the power is switched on again.
Wash or clean the dismounted instrument before returning it, in order to
protect persons and the environment from exposure to residual media.
Residual media at the dismounted instrument can result in a risk to
persons, the environment and the equipment. Take sucient precautionary
measures.
For information on returning the instrument see chapter 11.2 "Return".
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
13
10. Faults / 11. Dismounting, return and disposal
10. Faults
Faults Causes Measures
GB
The pointer drops below the
start of the scale range.
Instrument switches at the
wrong temperature
Instrument does not switch Defect in switch setting/ micro
CAUTION!
If faults cannot be eliminated by means of the measures listed above, take the
instrument out of service immediately, ensure that no pressure/temperature
or signal are still present and secure the instrument from being put back into
operation inadvertently.
In this case, contact the manufacturer.
If a return is needed, please follow the instructions given in chapter
11.2 "Return".
Damaged capillary Carefully dismount the instrument,
pack it (tightly sealed) and return it
Switch point is set incorrectly. Check the switch point
switch
to the manufacturer for repair.
Return the instrument to the
manufacturer for repair
11. Dismounting, return and disposal
WARNING!
Residual media at the dismounted instrument can result in a risk to persons,
the environment and the equipment.
Take sucient precautionary measures.
11.1 Dismounting
WARNING!
Risk of burns!
Let the instrument cool down suciently before dismounting!
During dismounting there is a risk of dangerously hot pressure media
escaping.
Only disconnect the expansion thermometer once the system has been depressurised!
14
WIKA operating instructions expansion thermometer, model 70
11472988.02 04/2013 GB/D/F/E
11. Dismounting, return and disposal
11.2 Return
WARNING!
Strictly 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. Place the instrument along with shock-absorbent material in the packaging.
Place shock-absorbent material evenly on all sides of the transport packaging.
2. If possible, place a bag containing a desiccant inside the packaging.
3. Label the shipment as carriage of a highly sensitive measuring instrument.
Information on returns can be found under the heading "Service" on our local
website.
11.3 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-specic waste disposal regulations.
GB
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
15
GB
16
11472988.02 04/2013 GB/D/F/E
WIKA operating instructions expansion thermometer, model 70
Inhalt
Inhalt
1. Allgemeines 18
2. Sicherheit 19
3. Technische Daten 22
4. Aufbau und Funktion 22
5. Transport, Verpackung und Lagerung 23
6. Inbetriebnahme, Betrieb 24
7. Anzeigekontrolle 26
8. Anzeigekorrektur 26
9. Wartung und Reinigung 27
10. Störungen 28
11. Demontage, Rücksendung und Entsorgung 28
D
11472988.02 04/2013 GB/D/F/E
WIKA Betriebsanleitung Tensionsthermometer, Typ 70
17
1. Allgemeines
1. Allgemeines
Die in der Betriebsanleitung beschriebenen Tensionsthermometer werden nach dem
aktuellen Stand der Technik gefertigt.
Alle Komponenten unterliegen während der Fertigung strengen Qualitäts- und Umwelt-
kriterien. Unsere Managementsysteme sind nach ISO 9001 und ISO 14001 zertiziert.
D
Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit dem Gerät. Voraus-
setzung für sicheres Arbeiten ist die Einhaltung aller angegebenen Sicherheitshinweise
und Handlungsanweisungen.
Die für den Einsatzbereich des Gerätes geltenden örtlichen Unfallverhütungsvorschrif-
ten 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 Verwen-
dung, 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 81.01, TV 28.01
- Anwendungsberater:
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.
18
Tel.: (+49) 9372/132-0
Fax: (+49) 9372/132-406
E-Mail: info@wika.de
WIKA Betriebsanleitung Tensionsthermometer, Typ 70
11472988.02 04/2013 GB/D/F/E
Loading...