WIKA 732.14.100 per ATEX User manual

Model 732.51.100 per ATEXModel 732.14.100 per ATEX
EN
DE
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
FR
ES
Pressure gauge model 7, NS 100 and NS 160 per ATEX
Manometer Typ 7, NG 100 und NG 160 nach ATEX
Manomètre type 7, diam. 100 et diam. 160 selon ATEX
Manómetro modelo 7, DN 100 y DN 160 según ATEX

2WIKA operating instructions pressure gauge model 7 per ATEX
14508720.02 09/2021 EN/DE/FR/ES
EN
DE
FR
ES
Operating instructions model 7 per ATEX Page 3 - 20
Betriebsanleitung Typ 7 nach ATEX Seite 21 - 38
Mode d'emploi type 7 selon ATEX Page 39 - 56
Manual de instrucciones modelo 7 según ATEX Página 57 - 74
© 07/2009 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!

3WIKA operating instructions pressure gauge model 7 per ATEX
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Contents
Declarations of conformity can be found online at www.wika.com.
Contents
1. General information 4
2. Safety 5
2.1 Intended use . . . . . . . . . . . . . . . . . . . . 5
2.2 Responsibility of the operator . . . . . . . . . . . . . . . 6
2.3 Ignition hazards . . . . . . . . . . . . . . . . . . . 6
2.4 Personnel qualification . . . . . . . . . . . . . . . . . 7
2.5 Special hazards . . . . . . . . . . . . . . . . . . . 8
2.6 Labelling / Safety marks. . . . . . . . . . . . . . . . . 8
2.7 Special conditions for safe use (X conditions) . . . . . . . . 10
3. Specications 14
4. Design and function 16
5. Transport, packaging and storage 17
5.1 Transport. . . . . . . . . . . . . . . . . . . . . 17
5.2 Packaging . . . . . . . . . . . . . . . . . . . . 17
5.3 Storage . . . . . . . . . . . . . . . . . . . . . 17
6. Commissioning, operation 17
7. Faults 18
8. Maintenance and cleaning 19
8.1 Maintenance . . . . . . . . . . . . . . . . . . . 19
8.2 Cleaning . . . . . . . . . . . . . . . . . . . . . 20
9. Dismounting, return and disposal 20
9.1 Dismounting . . . . . . . . . . . . . . . . . . . 20
9.2 Return. . . . . . . . . . . . . . . . . . . . . . 20
9.3 Disposal . . . . . . . . . . . . . . . . . . . . . 20
Annex: EU declaration of conformity 75

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1. General information
1. General information
The instrument described in the 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 manage-
ment 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 opera-
ting 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
Model Model ID Data sheet
732.31, 732.51, 733.31, 733.51 A PM 07.05
732.14, 733.14, 762.14, 763.14 B PM 07.13
Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in
serious injury or death, if not avoided.
WARNING!
... indicates a potentially dangerous situation in the hazardous area
that results in serious injury or death, if not avoided.
Information
... points out useful tips, recommendations and information for
ecient and trouble-free operation.

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2. Safety
2. Safety
WARNING!
Before installation, commissioning and operation, ensure that the
appropriate instrument has been selected in terms of measuring
range, design and specic measuring conditions.
Check the compatibility with the medium of the materials subjected
to pressure!
In order to guarantee the measurement accuracy and long-term
stability specied, the corresponding load limits must be observed.
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 instruments are used for measuring pressure in hazardous areas of indust-
rial applications.
Suitability for use in accordance with model ID
See chapter 1 for the assignment of model ID to model.
Application Model
ID
A B
For gaseous and liquid aggressive media that are not highly viscous or crystalli-
sing, also in aggressive environments
Pump monitoring and control
Filter monitoring
Level measurement on closed vessels
For measuring locations with a high dierential pressure overload and/or high
working pressures (static pressures)
For gaseous, liquid, contaminated, viscous and aggressive media, also in ag-
gressive environments
The instrument has been designed and built solely for the intended use described
here, and may only be used accordingly.

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2. Safety
The manufacturer shall not be liable for claims of any type based on operation
contrary to the intended use.
2.2 Responsibility of the operator
The legibility of the marking must be observed during time in use but at least
during inspection periods of three years. If any harm of the legibility is found
please contact the manufacturer to renew the marking.
For the safety of the system, the operator is obliged to carry out an ignition source
and ignition hazard analysis. Refer to chapter 2.3 “Ignition hazards”.
The responsibility for classication of zones lies with the plant manager and not
the manufacturer/supplier of the equipment.
2.3 Ignition hazards
Relevantidentiedignition
hazards
Implemented protective measures
Hot surfaces
■
The actual surface temperature depends on the
application, i.e. on the medium temperature
■
Temperature range marking; T range marking
■
Observation of legibility of marking
▶Information given in operating instructions
Mechanically generated sparks
and hot surfaces
■
Low contact speed
■
Restriction of vibration
■
Selection of suitable materials
▶Information given in operating instructions
Stray electric currents, cathodic
corrosion protection
■
Grounding via process connection required
▶Information given in operating instructions
Static electricity
■
No propagating brush discharge
■
All conductive parts bonded
■
Limitation of projected area of non-conductive
parts
■
Limitation of layer thickness of non-conductive
parts
■
Grounding via process connection required
■
Description of cleaning process
▶Information given in operating instructions
Exothermic reactions, including
self-ignition of dusts
■
Provision of material data of the wetted parts for
the customer in order to avoid the use of critical
media
▶Information given in operating instructions

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The materials used can be found in the instrument marking. See chapter
2.6 “Labelling / Safety marks”.
On the wetted parts of the instrument, small residual amounts of the
adjustment medium (e.g. compressed air, water, oil) can adhere from
production.With increased requirements for technical cleanliness,
suitability for the application must be checked by the operator before
commissioning.
Liquid media with the property of changing the volume during solidi-
cation can damage the measuring system (e.g. water if it falls below
the freezing point).
2.4 Personnel qualification
WARNING!
Risk of injury should qualication be insucient!
Improper handling can result in considerable injury and damage to
property.
The activities described in these operating instructions may only be
carried out by skilled personnel who have the qualications descri-
bed below.
Skilled personnel
Skilled personnel are understood to be personnel who, based on their techni-
cal 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.
2. Safety

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2.5 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.
For further important safety instructions see chapter 2.7 “Special conditions for
safe use (X conditions)”.
WARNING!
Residual media in dismounted instruments can result in a risk to
persons, the environment and equipment.
Take sucient precautionary measures.
2.6 Labelling / Safety marks
Ex marking
Ex marking per 2014/34/EU Ex marking per ISO 80079-36/37
A B C D E 1 2 3 4 5 6
II 2 G Ex h IIC T6 ...T1 Gb X
II 2 D Ex h IIIC T85°C ...T450°C Db X
Designation Marking Meaning
ACE marking European conformity
BSpecic marking for explo-
sion protection
Ex symbol
CSymbol of the equipment
group
II Equipment intended for use in other places
than underground parts of mines, and in
those parts of surface installations of such
mines, liable to be endangered by redamp
and/or combustible dust and an explosive
atmosphere.
DSymbol of the equipment
category
2 High safety, suitable for zone 1 and 21.
EEx atmosphere G For areas in which explosive gas, vapour,
mist or air mixtures are present.
D For areas in which explosive atmospheres
caused by dust can form.
2. Safety

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Designation Marking Meaning
1Ex marking Ex Standards ISO 80079-36 and
ISO 80079-37 applied.
2Ignition protection type h Non-electrical equipment for use in explosi-
ve atmospheres.
An ignition protection type is not applied to
the letter “h”.
3Suitable atmosphere IIC Gas atmosphere group IIC.
IIIC Combustible yings, non-conductive dust
and conductive dust.
4Maximum surface
temperature
T6 ...T1 Symbol indicating the temperature class.
The actual maximum surface temperature
depends not on the equipment itself, but
mainly on the operating conditions.
T85°C ...
T450°C
Maximum surface temperature
The actual maximum surface temperature
depends not on the equipment itself, but
mainly on the operating conditions.
5EPL equipment protection
level
Gb Potential ignition sources that are eective
or may become eective during normal
operation and expected malfunction.
Db
6Specic conditions of use,
see operating instructions
X Ambient temperature with special range.
Specic conditions of use apply.
2. Safety

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Product label
Warning label for electrostatic
charging (optional)
Additionallabel“liquidlling”
(optional)
Model
Volume of wetted parts
Maximum permissible pressure PS
Serial number
Year of manufacture
Article number of the
EU declaration of conformity
Case lling
Before mounting and commissioning the instrument, ensure
you read the operating instructions!
The instrument bearing this mark is a safety pressure gauge with a
solid bae wall in accordance with EN 837.
2.7 Special conditions for safe use (X conditions)
WARNING!
Non-observance of these instructions and their contents may result
in the loss of explosion protection.
WARNING!
It is imperative that the application conditions and safety require-
ments of the operating instructions are followed.
▶Instruments must be grounded via the process connection.
2. Safety

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1. Design temperatures
Permissible ambient temperature
-20 ... +60 °C
-40 ... +60 °C only instruments with silicone oil lling
-70 ... +60 °C for models 733.31, 733.51 POLARgauge®, low-temperature
version
For instruments with a permissible ambient temperature deviating fromFor instruments with a permissible ambient temperature deviating from
-20 ... +60 °C, this is indicated on the dial.-20 ... +60 °C, this is indicated on the dial.
Permissible medium temperature (instrument)
-20 … +100 °C -20 … +120 °C
-40 … +100 °C -20 … +150 °C
-20 … +60 °C -20 … +200 °C
The permissible medium temperature does not only depend on the instrument
design, but also on the ignition temperature of the surrounding gases, vapours or
dusts. Both aspects have to be taken into account. For lled instruments (option),
the permissible medium temperature is ≤ +100°C (marking with additional label
“liquid lling”).
The limits of the permissible temperature ranges of an “instrument hook-up”
mounting arrangement are determined, in each case, by the component with the
greatest restriction.
2. Maximum surface temperature
The surface temperature of the instruments mainly depends on the medium
temperature of the application.The instrument itself does not contain any heat
sources. For determining the maximum surface temperature, besides the medium
temperature also other inuences such as the ambient temperature and, if appli-
cable, the solar irradiation must be taken into account. For prevention, consider
the maximum medium temperature as maximum surface temperature, if it is not
possible to determine the real surface temperature even in the case of expected
malfunctions.
2. Safety

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Explosive gas/air, vapour/air and mist/air atmospheres
Required
temperature class
(ignition temperature
of gas or vapour)
Maximum permissible medium temperature (in the
measuring system)
Instruments with
permissible medium
temperature ≤100 °C
Instruments with
permissible medium
temperature >100 °C
T6 (T > 85 °C) +65 °C +65 °C
T5 (T > 100 °C) +80 °C +80 °C
T4 (T > 135 °C) +100 °C +105 °C
T3 (T > 200 °C) +100 °C +160 °C
T2 (T > 300 °C) +100 °C +200 °C
T1 (T > 450 °C) +100 °C +200 °C
Explosive dust/air atmospheres
For dusts, the procedure specied in ISO/IEC 80079-20-2 for determining the
ignition temperature has to be applied.The ignition temperature is determined
separately for dust clouds and dust layers, respectively. For dust layers, the igniti-
on temperature depends on the dust layer thickness per IEC/EN 60079-14.
Ignition temperature
of dust
Maximum permissible medium temperature
(in the measuring system)
Dust cloud: Tcloud < 2/3 Tcloud
Dust layer: Tlayer < Tlayer − 75 K − (reduction depending on the layer thickness)
The permissible maximum medium temperature must not exceed the lowest
determined value, even in case of a malfunction.
Explosive atmosphere consisting of hybrid mixtures
The instruments must not be used in areas in which an atmosphere consisting of
explosive hybrid mixtures (dusts mixed with gases) can occur.
3. Temperature at the installation site
When mounting the instrument it must be ensured that, taking into consideration
the inuence of convection and heat radiation, no deviation above or below the
permissible ambient and medium temperatures can occur.
4. Pressurisation
Pressure surges must be avoided at all costs. Open the shut-o valves slowly.
2. Safety

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5. Temperature increase through compression warming
Avoid the increasing of warming due to gas-compression. In these cases it may
be necessary to throttle the rate of change of pressure or reduce the permissible
medium temperature.
6. Equipotential bonding
The instruments must be connected to the equipotential bonding of the plant via
the process connection by the end user in the end use application. Avoid use of
electric insulating sealing materials.
7. Handling of materials
Avoid exposure to substances or environment conditions that might aect the
materials of the
instrument negatively. Avoid handling substances that are liable to spontaneous
combustion. For a list of the materials used, see chapter 3 “Specications”. For
other versions, the materials of wetted parts not listed there (e.g. Hastelloy) are
noted on the dial.
8. Permissible vibration load
The instruments should always be installed in locations free from vibration. If
necessary, it is possible to isolate the instrument from the mounting point, e.g. by
installing a exible connection line between the measuring point and the pressure
gauge and mounting the instrument on a suitable bracket.
If vibrations cannot be avoided by means of suitable installation, instruments with
liquid lling should be used.
However, the following limit values must not be exceeded:
Frequency range: < 150 Hz
Acceleration: < 0.5 g (approx. 5 m/s2)
9. Cleaning
Clean the equipment with a moist cloth. Do not use other cleaning processes than
manual rubbing to prevent electrostatic charging.
10. Assessment of all accessory components
All accessories (e.g. valves or attachment components) must be assessed in
combination with the delivered instruments by the end user. Particularly the requi-
rements of grounding and prevention of electrostatic charges must be considered.
2. Safety

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11. Suitable protective measures
The operator must recognise ignition hazards and take suitable protective measu-
res. See chapter 2.2 “Responsibility of the operator”.
12. Description of the protection level
The operator must understand the Ex marking based on the description in chapter
2.6 “Labelling / safety marks” and observe it for their application.
13. Checking of the instrument labelling
The legibility of the marking must be observed during time in use but at least
during inspection periods of three years. See chapter 2.2 “Responsibility of the
operator”.
14. Instruments with mark pointer
For instruments with marking pointer, ensure that there are no electrostatic
charging mechanisms at the marking pointer.
15. Protection against external impact
Avoid any kind of external impact. External impacts can generate sparks through
friction processes between dierent materials.
16.Instrumentlling
The lling/relling of instruments leads to a loss of the explosion protection and
can lead to damage to the instrument.
3. Specifications
Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
2.Safety/3.Specications

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Overload safety and max. working pressure
Models 732.31, 732.51, 733.31, 733.51
Scale range Max. working pressure
(static pressure) in bar
Overload safety, either
side in bar
Standard Option Standard Option
0 ... 16 to 0 ... 40 mbar 2.5 6 2.5 -
0 ... 60 to 0 ... 250 mbar 6 10 2.5 6
0 ... 400 mbar 25 40 4 40
0 ... 0.6 bar 25 40 6 40
0 ... 1 bar 25 40 10 40
0 ... 1.6 bar 25 40 16 40
0 ... 2.5 to 0 ... 25 bar 25 40 25 40
Overload safety and max. working pressure
Models 732.14, 762.14, 733.14, 763.14
Pressure
rating
On one side and alternatingly
onthe⊕and⊖sides
On both sides on the
⊕and⊖side
PN 40 40 bar 40 bar
PN 100 100 bar 100 bar
PN 250 250 bar 250 bar
PN 400 400 bar 400 bar
PN 650 400 bar 650 bar
Materials of wetted parts
Process connection, media chamber, measuring ange: Stainless steel, Monel
(only models 762.14, 763.14)
Models Pressure element
732.31, 732.51,
733.31, 733.51
Scale range ≤ 0.25 bar: Stainless steel
Scale range > 0.25 bar: NiCr alloy (Inconel)
732.14, 733.14 Stainless steel/NiCr alloy (Inconel) or Hastelloy (option)
762.14, 763.14 Monel or Monel/Hastelloy (option)
Sealing (only models 732.14, 733.14, 762.14, 763.14): FPM/FKM
Vent screws for media chamber:
Stainless steel (optional for scale ranges ≥ 0.4 bar)
3.Specications

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Materials of non-wetted parts
Movement, case, bayonet ring: Stainless steel
Dial and pointer: Aluminium
Window: Laminated safety glass
Temperatureeect
When the temperature of the measuring system deviates from the reference
temperature (+20 °C):
max. ±0.8 %/10 K of full scale value
Case ingress protection 1) per IEC/EN 60529
IP54 (lled instruments: IP65)
For further specications see WIKA data sheet PM 07.05, PM 07.13 and the order
documentation.
1) For general use, no ATEX requirement
4. Design and function
Description
Nominal size 100 and 160 mm
The instruments measure the pressure by means of resilient diaphragm
pressure elements.
The measuring characteristics are in accordance with the EN 837-3 standard.
In addition, the enclosing components of models 732.31 and 733.31 also meet
the requirements of EN 837-1, relating to safety pressure gauges with a solid
bae wall (code S3).
Scope of delivery
Cross-check scope of delivery with delivery note.
4. Design and function

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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).
5.3 Storage
Permissible storage temperature
-40 ... +70 °C
6. Commissioning, operation
Personnel: Skilled personnel
Before commissioning the instrument, the conditions from chapter 2.7 “Special
conditions for safe use (X conditions)” must be fullled.
Mechanical connection
In accordance with the general technical regulations for pressure measuring
instruments (e.g. EN 837-2 “Selection and installation recommendations for
pressure gauges”).
When screwing the instruments in, the force required for sealing must not be
applied through the case, but only through the spanner ats provided for this
purpose, and using a suitable tool.
For parallel threads, use at gaskets, lens-type sealing rings or WIKA prole
sealings at the sealing face .With tapered threads (e.g. NPT threads), sealing is
made in the threads , using a suitable sealing material (EN 837-2).
Sealing in the
thread
Spanner ats
Sealing face
5. Transport ... / 6. Commissioning, operation

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The tightening torque depends on the sealing used. In order to orientate the
measuring instrument so that it can be read as well as possible, a connection with
LH-RH adjusting nut or union nut should be used. When a blow-out device is tted
to an instrument, it must be protected against being blocked by debris and dirt.
Installation
Nominal position per EN 837-3 / 9.6.6 gure 7: 90° ( ⊥)
Process connection lower mount
With lled versions the vent valve at the top of the case must be opened before
commissioning!
For outdoor applications, the selected installation location has to be suitable
for the specied ingress protection, so that the instrument is not exposed to
impermissible weather conditions.
To ensure that the pressure can be safely vented in the case of failure,
instruments with blow-out device or blow-out back must keep a minimum
distance of 20 mm from each object.
Commissioning
During the commissioning process pressure surges must be avoided at all costs.
Open the shut-o valves slowly.
7. Faults
Personnel: Skilled personnel
CAUTION!
Physical injuries and damage to property and the environment
If faults cannot be eliminated by means of the listed measures, the
instrument must be taken out of operation immediately.
▶Ensure that there is no longer any pressure present and protect
against being put into operation accidentally.
▶Contact the manufacturer.
▶If a return is needed, please follow the instructions given in
chapter 9.2 “Return”.
For contact details see chapter 1 “General information”.
6. Commissioning, operation / 7. Faults

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Fault Cause Measure
No pointer movement
despite change in
pressure.
Movement blocked. Replace instrument.
Pressure element defective.
Pressure port blocked.
After depressurisation,
the pointer remains just
above the zero point.
Friction in the movement. Tap lightly on the case.
Instrument was overloaded. Replace instrument.
Material fatigue of the pres-
sure element.
The pointer remains outs-
ide the zero point toleran-
ce after installation and
depressurisation.
Mounting error: Instrument
not mounted in nominal
position.
Check the mounting position.
Transport damage (e.g.
non-permissible shock
loading).
Replace instrument.
Instrument outside the
accuracy class.
Instrument was operated
outside of permissible per-
formance limits.
Check the observance of the
operating parameters of the
application.
Replace instrument.
Vibration of the pointer. Vibrations in the application. Use instrument with case
lling.
Mechanical damage
(e.g. window, case).
Improper handling. Replace instrument.
For the replacement of the instrument chapters 9 “Dismounting, return and dispo-
sal” and 6 “Commissioning, operation” must be observed.
8. Maintenance and cleaning
8.1 Maintenance
The instruments are maintenance-free. The indicator should be checked once or
twice every year. For this the instrument must be disconnected from the process to
check with a pressure testing device.
Level check
For lled instruments, the level must be checked on a regular basis.
The liquid level must not drop below 75 % of the instrument diameter.
Repairs must only be carried out by the manufacturer or appropriately qualied
skilled personnel.
7. Faults / 8. Maintenance and cleaning

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8.2 Cleaning
CAUTION!
Clean the instrument with a moist cloth. Ensure that due to the
cleaning no electrostatic charge will be generated.
Wash or clean the dismounted instrument before returning it, in
order to protect persons and the environment from exposure to
residual media.
9. Dismounting, return and disposal
WARNING!
Residual media in dismounted instruments can result in a risk to
persons, the environment and equipment.
Take sucient precautionary measures.
9.1 Dismounting
Only disconnect the instrument once the system has been depressurised!
9.2 Return
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.) and must therefore be cleaned before
being returned.
When returning the instrument, use the original packaging or a suitable transport
packaging.
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-specic waste disposal
regulations.
8. Maintenance ... / 9. Dismounting, return and disposal
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