WIKA TGT73 User Manual [en, de, es, fr]
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
Gas-actuated thermometer with electrical output
signal, model TGT73
Gasdruck-Thermometer mit elektrischem
Ausgangssignal, Typ TGT73
Thermomètre à dilatation de gaz avec signal de sortie
électrique, type TGT73
Termómetro de dilatación de gas con señal de salida
eléctrica, modelo TGT73
Model TGT73.100
GB
D
F
E
Operating instructions model TGT73
GB
Page 3 - 24
Betriebsanleitung Typ TGT73
D
Mode d'emploi type TGT73
F
Manual de instrucciones modelo TGT73
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 model TGT73
Seite 25 - 44
Page 45 - 66
Página 67 - 86
14028755.02 08/2012 GB/D/F/E
Contents
Contents
1. General information 4
2. Safety 6
3. Specications 8
4. Design and function 10
5. Transport, packaging and storage 11
6. Commissioning, operation 13
7. Mounting instructions for contact bulb 16
8. Electrical connection 18
9. Maintenance and cleaning 19
10. Faults 20
11. Dismounting, return and disposal 21
Appendix 1: EC declaration of conformity 23
Declarations of conformity can be found online at www.wika.com.
GB
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WIKA operating instructions model TGT73 3
1. General information
1. General information
■
The intelliTHERM model TGT73 gas-actuated thermometer
GB
described in these operating instructions has 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 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:
- Relevant data sheet: TV 17.10
www.wika.de / www.wika.com
4 WIKA operating instructions model TGT73
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1. General information
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 that can
result in burns, caused by hot surfaces or liquids, if not
avoided.
GB
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WIKA operating instructions model TGT73 5
2. Safety
2. Safety
WARNING!
GB
2.1 Intended use
The gas-actuated thermometer is mainly used in the process industry
to monitor and control process temperatures.
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, stem etc.)
with the medium must be tested.
Non-observance can result in serious injury and/or
damage to the equipment.
WARNING!
This is protection class 3 equipment for connection at low
voltages, which are separated from the power supply or
voltage by greater than AC 50 V or DC 120 V. Preferably,
a connection to an SELV or PELV circuit is recommended;
alternatively protective measures from HD 60346-4-41
(DIN VDE 0100-410).
Alternatively for North America:
The connection can be made in line with "Class 2
Circuits" or "Class 2 Power Units" in accordance with CEC
(Canadian Electrical Code) or NEC (National Electrical
Code).
Further important safety instructions can be found in the
individual chapters of these operating instructions.
The instrument has been designed and built solely for the intended
use described here, and may only be used accordingly.
6 WIKA operating instructions model TGT73
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2. Safety
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.
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 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 countryspecic regulations, current standards and directives, are capable
of carrying out the work described and independently recognising
potential hazards.
GB
2.3 Special hazards
WARNING!
Residual media in the dismounted gas-actuated
thermometer can result in a risk to personnel, the
environment and equipment. Take sucient precautionary
measures.
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WIKA operating instructions model TGT73 7
2. Safety / 3. Specications
2.4 Product label
Model
GB
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.
3. Specications
Gas-actuated thermometer model TGT73
Measuring element Inert gas expansion system
Nominal size 100, 160
Instrument version Back mount (axial)
Permissible ambient temperature 0 ... 40 °C
Working range
■
Continuous load (1 year)
■
short term (max. 24 h)
Case, ring
Stem, process connection
Ingress protection
8 WIKA operating instructions model TGT73
Lower mount (radial)
Back mount, adjustable stem and dial
Instruments with capillaries
Measuring range (EN 13190)
Scale range (EN 13190)
Stainless steel
Stainless steel 1.4571
IP 65 per IEC 60529
Date of manufacture
14028755.02 08/2012 GB/D/F/E
3. Specications
Electrical data
Power supply U
Inuence of power supply ≤ 0.1 % of full scale value/10 V
Permissible residual ripple ≤ 10 % ss
Output signal, variant I
Permissible max. load R
Eect of load ≤ 0.1 % of FS
Output signal, variant II 0 ... 10 V
Impedance at voltage output 0.5 Ω
Load capacity at voltage output 2 … 100 kΩ
Sensor sampling rate 600 ms
Linearity ≤ 1.0 % of span (limit point setting)
Output signal accuracy 0.2 % of FS (electronics only)
Resolution 0.15 % of FS (10 bit resolution at 360°)
Refresh rate (measuring rate) > 1/s
Input signal, angle of rotation 0 … 270 ∢ °
Long-term stability of electronics < 0.3 % of FS/a
Temperature error, electronics < 0.3 % of FS/10 K (in overall temperature
Warm-up time ≤ 5 min
Permissible ambient temperature
Permissible storage temperature
Electromagnetic compatibility
(EMC)
Electrical connection via angular connector, 180°
Ingress protection IP 65 to IEC 60529
B
DC 12 ≤ UB ≤ 30 V
4 … 20 mA, 2-wire, passive, per NAMUR NE43
RA ≤ (UB - 12 V)/0.02 A with RA in Ω and U
A
in V, however max. 600 Ω
range)
0 ... 40 °C
-40 … +70 °C without liquid damping
-20 … +70 °C with liquid damping
EMC directive 2004/108/EC, EN 61326
emission (group 1, class B) and interference
immunity (industrial application)
rotatable, max. 1,5 mm², cable
protection, M20 x 1.5 cable gland,
cable outer diameter 7 ... 13 mm,
incl. strain relief
Protection against reverse polarity and
overvoltage
GB
B
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WIKA operating instructions model TGT73 9
3. Specications / 4. Design and function
Designation of terminal
connectors dependent on the
output signal variant
GB
Terminal
Type
1
2
3
4
5
6
Variant I
4 ... 20 mA
GND
I+
reserved
reserved
reserved
reserved
For further specications see WIKA data sheet TV 17.10 and the
order documentation.
4. Design and function
4.1 Description
The gas-actuated thermometer consists of a stem, capillary, Bourdon
tube and transmitter in the casing. These parts are combined to form
a single unit. The entire measuring system is lled with an inert gas
under pressure.
Any change in temperature causes a change in internal pressure in
the stem, and thus a change in the shape of the pressure element.
This motion is converted, via a mechanical movement, into a
rotational motion. A magnet on the pointer shaft rotates proportionally
to the instrument pointer as a direct linear function of the process
temperature. The downstream electronics detect the rotational motion
of the magnet in the display range.
A magnetic-eld dependent rotational sensor picks up this change on
the electronics side, contact-free, wear-free and without reaction on
the pressure element.
Variant II
0 ... 10 V
GND
UB+
U
out
reserved
reserved
reserved
10 WIKA operating instructions model TGT73
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4. Design and function / 5. Transport ...
The rotational motion is converted into an electrical signal. The
electronics are factory set to the standard 4 ... 20 mA passive or
0 ... 10 V output signal. The span of the electrical output signal
corresponds to the measuring span on the dial.
Through these two standard electrical output signals, this instrument
can be set to almost any range in the industry.
Thermometers from the intelliTHERM range with transmitters
combine all the advantages of a local mechanical display with the
industry‘s requirements for electrical signal transmission and a
modern measured value registration.
Variations in the ambient temperature acting on the case are
compensated for by a bimetal element mounted between the
movement and the Bourdon tube.
Scale ranges with accuracy class 1 per 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 the gas-actuated thermometer for any damage that may
have been caused by transport. Obvious damage must be reported
immediately.
GB
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 model TGT73 11
5. Transport, packaging and storage
5.3 Storage
Permissible conditions at the place of storage:
Storage temperature: -40 … +70 °C (EN 13190) without liquid damping
GB
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 gas-actuated thermometer 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 instrument in an antistatic plastic lm.
2. Place the instrument, 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).
-20 … +70 °C (EN 13190) with liquid damping
12 WIKA operating instructions model TGT73
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6. Commissioning, operation
6. Commissioning, operation
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
■
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.
■
The dial casing must be mounted 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.
GB
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WIKA operating instructions model TGT73 13
6. Commissioning, operation
If this is not possible, the following limit values must not be exceeded:
Dry gauges: Frequency range < 150 Hz
GB
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.
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 movement, and fractures on 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 the screws on the
opposite side are loosened
as well!
14 WIKA operating instructions model TGT73
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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
note that the stem must not touch
the bottom of the thermowell.
Due to the dierent coecients
of expansion of the materials, the
stem can bend at the bottom of the
thermowell.
Thermowell
Stem
Required safety
clearance
(For the formula for the calculation
of the insertion length, l1, see the
respective thermowell data sheet)
GB
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WIKA operating instructions model TGT73 15
7. Mounting instructions for contact bulb
7. Mounting instructions for contact bulb
The contact bulb has been designed for mounting on pipes or tanks.
When mounting this thermometer version, it must be ensured that the
GB
contact bulb is in contact with the measuring point over its complete
length. The basic requirements to ensure a perfect measurement
result is to retain good thermal contact between the skin mounted
contact bulb and the outside wall of the pipe or tank with minimal heat
loss to ambient from the skin mounted contact bulb and measuring
point.
Capillary
Bend protector
3107876.01
7.1 Mounting to pipes
The geometry of the contact
bulb has been designed for
pipes with external diameters
between 20 and 160 mm. The
skin mounted contact bulb should
have direct metallic contact with
the measuring point and have rm
contact with the surface of the
pipe. Where temperatures under
200 °C are to be expected, a heat conducting paste can be used to
optimise the heat transmission between skin mounted contact bulb
and pipe. Lagging must be applied where the skin mounted contact
bulb has been mounted, in order to avoid error due to heat loss.
This lagging must have sucient temperature resistance and is not
provided with the instrument.
16 WIKA operating instructions model TGT73
Tube clip mounting
Lagging
3107922.01
14028755.02 08/2012 GB/D/F/E
7. Mounting instructions for contact bulb
7.2 Mounting to vessels
The geometry of the contact bulb
has been designed for vessels
Angle bracket mounting
Lagging
with an external radius up to
80 mm. If the mounting point
of the skin mounting contact
bulb on the tank has an external
radius greater than 80 mm,
we recommend the use of an
intermediate piece designed for the respective vessel diameter, made
of a material with good thermal conductivity. The contact bulb should
be fastened to the vessel by means of an angle bracket with clamping
screws, or any similar method. The skin mounted contact bulb should
have direct metallic contact with the measuring point and have rm
contact with the surface of the vessel.
A heat conductive paste can be used to optimise the heat
transmission between skin mounted contact bulb and the vessel,
if temperatures under 200 °C are to be expected. Lagging must be
applied where the skin mounted contact bulb has been mounted, in
order to avoid error due to heat loss. This lagging must have sucient
temperature resistance and is not provided with the instrument.
GB
3107930.01
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WIKA operating instructions model TGT73 17
8. Electrical connection
8. Electrical connection
The electrical connection of the transmitter is made through an
angular connector. The exact pin assignments can be found in the
GB
following drawings. In addition, the pin assignment, output signal and
the required power supply are stated on the product label.
Explanation of the terminal assignments used:
Positive terminal of the power supply
U
B+
0 V Negative terminal of the power supply
Sig+ Positive terminal of the output signal
Sig- Negative terminal of the output signal
The instruments must be connected to the equipotential bonding of
the plant.
Designation of terminal connectors
Terminals 1 and 2 are the connection terminals for the signal
output and the power supply, respectively. The terminal labelled
PE (protective earth) is internally connected to the casing. The
connections 3 to 6 or 4 to 6 in the 3-wire variant, should be left free
and must not be used as points (see also chapter 3 "Specications").
WARNING!
The gas-actuated thermometer with integrated rotary
encoder must be grounded through the thermometer
housing and through the ground terminal in the angular
connector.
18 WIKA operating instructions model TGT73
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8. Electrical connection / 9. Maintenance ...
2-wire system 3-wire system
e.g. 4 ... 20 mA e.g. 0 ... 10 V
Terminal box
Terminals 3, 4, 5 and 6:
only for internal use
Power supply
Power supply
Evaluation
(display)
Earth, connected
to case
UB+/Sig+
+0V/Sig-
As a power supply, an unstabilised DC power supply is sucient, with
a max. ripple of 10 % ss in the range of the specied power supply
limits. It is important to ensure that the applied power supply is at least
greater than the maximum required voltage drop from the external
display and evaluation units; i.e. the voltage at the transmitter must
not fall below 12 V.
9. Maintenance and cleaning
9.1 Maintenance
Gas-actuated thermometers with transmitters 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.
Evaluation
(display)
Earth, connected
to case
UB+/Sig+
I
out/Uout
+0V/Sig-
Terminals 4, 5 and 6:
only for internal use
GB
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WIKA operating instructions model TGT73 19
9. Maintenance and cleaning / 10. Faults
9.2 Cleaning
CAUTION!
■
GB
10. Faults
Faults Causes Measures
No output signal No power supply or
Constant output
signal upon change in
temperature
Too high, constant
output signal upon
change in temperature
Signal span too small Power supply too low Rectify the power supply
20 WIKA operating instructions model TGT73
Clean the instrument with a moist cloth.
■
Wash or clean the dismounted instrument before
returning it in order to protect personnel and the
environment from exposure to residual media.
■
Residual media in the dismounted gas-actuated
thermometer can result in a risk to personnel,
the environment and equipment. Take sucient
precautionary measures.
For information on returning the instrument see chapter
11.2 "Return".
cable break
Transmitter incorrectly
connected
Electronics failure due to
too high power supply or
through external voltage
Power supply connected
the wrong way
(I = approx. 4.5 mA)
Transmitter fault Return the instrument to the
Electronics failure due to
too high power supply or
through external voltage
Load too high Stay within the max.
Check voltage supply
and cables. Replace any
defective components found
Check connections; correct
connections if necessary
Return the instrument to the
manufacturer for repair
Check connection, and if
necessary, swap terminals
1 and 2
manufacturer for repair
Return the instrument to the
manufacturer for repair
permissible load
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11. Dismounting, return and disposal
11. Dismounting, return and disposal
WARNING!
Residual media in the dismounted gas-actuated
thermometer can result in a risk to personnel, the
environment and 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.
11.2 Return
WARNING!
Absolutely observe the following 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.
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.
GB
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WIKA operating instructions model TGT73 21
11. Dismounting, return and disposal
Information on returns can be found under the heading
"Service" on our local website.
GB
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 countryspecic waste disposal regulations.
22 WIKA operating instructions model TGT73
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Appendix 1: EC declaration of conformity
GB
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WIKA operating instructions model TGT73 23
GB
24 WIKA operating instructions model TGT73
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Inhalt
Inhalt
1. Allgemeines 26
2. Sicherheit 28
3. Technische Daten 30
4. Aufbau und Funktion 32
5. Transport, Verpackung und Lagerung 33
6. Inbetriebnahme, Betrieb 35
7. Montagehinweise für Anliegefühler 38
8. Elektrischer Anschluss 40
9. Wartung und Reinigung 41
10. Störungen 42
11. Demontage, Rücksendung und Entsorgung 43
Anlage 1: EG-Konformitätserklärung 23
Konformitätserklärungen nden Sie online unter www.wika.de.
D
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WIKA Betriebsanleitung Typ TGT73
25
1. Allgemeines
1. Allgemeines
■
Das in der Betriebsanleitung beschriebene Gasdruck-Thermometer intelliTHERM Typ TGT73 wird nach dem aktuellen Stand der
Technik konstruiert und gefertigt. Alle Komponenten unterliegen
während der Fertigung strengen Qualitäts- und Umweltkriterien.
D
Unsere Managementsysteme 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:
- zugehöriges Datenblatt: TV 17.10
www.wika.de / www.wika.com
26 WIKA Betriebsanleitung Typ TGT73
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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
hin, die durch heiße Oberächen oder Flüssigkeiten zu
Verbrennungen führen kann, wenn sie nicht gemieden
wird.
D
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27
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