WIKA 632.50 User manual

DE
EN
Operating instructions
Betriebsanleitung
Example: Model 632.50.100 per ATEX
Capsule pressure gauge, stainless steel
Models 632.50 and 633.50 per ATEX
Kapselfedermanometer, CrNi-Stahl
Typen 632.50 und 633.50 nach ATEX

DE
EN
40433177.01 11/2020 EN/DE
Operating instructions capsule pressure gauge, model 63x.50 per ATEX
2
© 11/2020 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!
Operating instructions
models 632.50 and 633.50 per ATEX
Page 3 - 28
Betriebsanleitung
Typen 632.50 und 633.50 nach ATEX
Seite 29 - 53

EN
Operating instructions capsule pressure gauge, model 63x.50 per ATEX 3
40433177.01 11/2020 EN/DE
Contents
Declarations of conformity can be found online at www.wika.com.
1. General information 4
1.1 Explanation of symbols ................................................................. 5
2. Safety 6
2.1 Intended use ................................................................................. 6
2.2 Responsibility of the operator........................................................ 7
2.3 Personnel qualification .................................................................. 9
2.4 Safety instructions for hazardous locations ................................. 10
2.5 Labelling / Safety marks .............................................................. 15
2.6 Ignition hazard analysis............................................................... 16
3. Specications 17
4. Design and function 18
5. Transport, packaging and storage 18
5.1 Transport ..................................................................................... 18
5.2 Packaging and storage................................................................ 19
6. Commissioning, operation 19
6.1 Mechanical connection ............................................................... 19
6.2 Requirements for the installation point ........................................ 20
6.3 Installation................................................................................... 21
6.4 External zero point setting (if available)....................................... 22
6.5 Permissible ambient and operating temperatures ....................... 22
6.6 Permissible vibration load at the installation site ......................... 23
6.7 Level check ................................................................................. 23
6.8 Commissioning ........................................................................... 23
7. Faults 24
8. Maintenance and cleaning 26
8.1 Maintenance ............................................................................... 26
8.2 Cleaning...................................................................................... 26
9. Dismounting,returnanddisposal 27
9.1 Dismounting................................................................................ 27
9.2 Return ......................................................................................... 27
9.3 Disposal ...................................................................................... 27
Annex: EU Declaration of conformity 54

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX
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1. General information
The pressure gauge 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 management systems are certied 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 gener-
al 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 insuciently qualied
skilled personnel or unauthorised modications to the instrument.
The general terms and conditions contained in the sales documenta-
tion shall apply.
Subject to technical modications.
1. General information

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX 5
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Further information:
- Internet address: www.wika.de / www.wika.com
Model NS Data sheet
632.50, 633.50 63, 100, 160 PM 06.03
1.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in
serious injury or death, if not avoided.
Information
... points out useful tips, recommendations and information
for ecient and trouble-free operation.
WARNING!
... indicates a potentially dangerous situation in the hazard-
ous area that results in serious injury or death, if not avoided.
1. General information

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX
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2. Safety
WARNING!
Before installation, commissioning and operation, ensure
that the appropriate pressure gauge has been selected in
terms of measuring range, design and specic 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 specied, 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 pressure gauges are used for measuring pressure in hazardous
areas of industrial applications.
ClassicationperEuropeanpressureequipmentdirective
Instrument type: Pressure accessory without safety function
Media: Gaseous, group 1 (hazardous)
Maximum permissible pressure PS, see chapter 2.5 “Labelling /
safety marks”
Volume of wetted parts: < 0.1 L
2. Safety

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX 7
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2. Safety
The instrument must only be used with media which are not harmful
to the wetted parts over the entire operating range of the instrument.
Any change in the state of the matter or any decomposition of unstable
media is not permitted.
Only use the instrument in applications that lie within its technical perfor-
mance limits (e.g. max. ambient temperature, material compatibility, ...).
→ For performance limits see chapter 9 “Specications”.
Suitability for use
Application
For gaseous, dry and aggressive media, that are not highly viscous or crystallising, also
in aggressive environments
Process industry: Chemical industry, petrochemical industry, oil and gas, power genera-
tion, water and wastewater technology, machine building and general plant construction
High dynamic pressure loads and vibrations (only with optional case liquid lling)
The instrument has been designed and built solely for the intended use
described here, and may only be used accordingly.
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 analysis. The responsibility for classication of zones
lies with the plant manager and not the manufacturer/supplier of the
equipment.

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2. Safety
These ignition sources must be taken into account for the instrument:
1. Hot surfaces
The surface of the instrument can heat up due to the temperature of
the process medium.This depends on the installation situation and
must be taken into account by the operator.
2. Mechanically generated sparks
Mechanically generated sparks are a potential ignition source. If the
materials used exceed a total mass percentage of 7.5 % magnesium,
titanium and zirconium, the operator must take appropriate protective
measures.
3. Static electricity
- To avoid electrostatic charging, the instrument must be included in
the equipotential bonding of the system.This can be done via the
process connection or other suitable measures.
- The instrument can optionally contain components with a non-con-
ductive surface coating or lining. In such cases, the operator must
take appropriate measures to prevent electrostatic charging.
- Metal components of the instruments (e.g.TAG plates) must be
included in the equipotential bonding of the system during installa-
tion and operation.
4. Adiabaticcompressionandshockwaves
With gaseous media, the temperature may increase as a result of
compression warming. In these cases it may be necessary to throttle
the rate of change of pressure or reduce the permissible medium
temperature.

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5. Chemical reactions
The operator must ensure that chemical reactions between wetted
parts, process medium and environment are excluded.The materi-
als used can be found in the instrument marking. See chapter 2.5
„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).
2.3 Personnelqualication
WARNING!
Riskofinjuryshouldqualicationbeinsucient!
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
qualications described below.
2. Safety

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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-specic regulations,
current standards and directives, are capable of carrying out the work
described and independently recognising potential hazards.
2.4 Safety instructions for hazardous locations
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
requirements of the operating instructions are followed.
▶Pressure gauges must be grounded via the process
connection.
For use in ambient temperatures below the freezing point of
water, lled instruments are recommended. The case lling
prevents the formation of and freezing of condensation in the
case.
Permissible ambient temperature
Model 632.50: -40 ... +60 °C (unlled)
Model 633.50: -20 ... +60 °C (glycerine lling)
-40 ... +60 °C (silicone oil lling)
Attention! With gaseous media, the temperature may increase as a
result of compression warming. In these cases it may be necessary to
throttle the rate of change of pressure or reduce the permissible medium
temperature.
2. Safety

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX 11
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Permissible medium temperature
≤ 100 °C (with case lling)
≤ 200 °C (unlled)
The permissible medium temperature does not only depend on the
instrument design, but also on the ignition temperature of the surround-
ing gases, vapours or dusts. Both aspects have to be taken into account.
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 inuences
such as the ambient temperature and, if applicable, 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.
Potentiallyexplosivegasatmosphere
Required
temperature
class (ignition
temperature of
gasorvapour)
Maximum permissible surface temperature
oftheinstrument(fortheendapplication)
Model 632.50
(unlled
instruments)
Model 633.50, NS 63
andNS100(lled
instruments)
T6(T>85°C) +65 °C +65 °C
T5(T>100°C) +80 °C +80 °C
T4(T>135°C) +105 °C +100 °C
T3(T>200°C) +160 °C +100 °C
T2(T>300°C) +200 °C +100 °C
T1(T>450°C) +200 °C +100 °C
2. Safety

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2. Safety
Hazardous dust atmosphere
For dusts, the procedure specied in ISO/IEC 80079-20-2 for determin-
ing the ignition temperature has to be applied.The ignition temperature
is determined separately for dust clouds and dust layers, respectively.
For dust layers, the ignition temperature depends on the dust layer thick-
ness per IEC/EN 60079-14.
Ignition tempera-
ture of dust
Maximum permissible surface temperature
oftheinstrument(fortheendapplication)
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.
Handling of materials
Avoid exposing the instrument to any substances or environmental
conditions that could negatively aect the instrument and the materials
used. Avoid handling substances that are liable to spontaneous combus-
tion. For a list of the materials used, see chapter 8 “Specications”. The
materials of the wetted parts are stated on the dial.
Cleaning
Clean the measuring instrument with a moist cloth. Ensure that due to
the cleaning no electrostatic charge will be generated.
Special hazards

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WARNING!
For hazardous media such as oxygen, acetylene, ammable
or toxic gases or liquids, and refrigeration plants, compres-
sors, etc., in addition to all standard regulations, the appropri-
ate existing codes or regulations must also be followed.
With pressure gauges which do not correspond to a safety
version per EN 837 highly pressurised media might leak out
through the possibly bursting window in case of a component
failure.
WARNING!
Residual media in dismounted pressure gauges can result in
a risk to persons, the environment and equipment.
▶Take sucient precautionary measures.
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
II 2 G Ex h IIC T6 ...T1 Gb
II 2 D Ex h IIIC T85°C ...T450°C Db
2. Safety

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX
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ID Marking Designation Meaning
ACE marking European conformity
BSpecic marking for
explosion protection
Ex symbol
CII Symbol of the
equipment group
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.
D2 Symbol of the
equipment category
High safety, suitable for zone 1 and 21.
EG Ex atmosphere For areas in which explosive gas, vapour,
mist or air mixtures are present.
D Ex atmosphere For areas in which explosive atmospheres
caused by dust can form.
1Ex Ex marking Standards ISO 80079-36 and ISO 80079-37
applied.
2h Ignition protection type Non-electrical equipment for use in explo-
sive atmospheres.
An ignition protection type is not applied to
the letter “h”.
3IIC Suitable atmosphere Gas atmosphere group IIC.
IIIC Combustible yings, non-conductive dust
and conductive dust.
4TX Maximum surface
temperature
Symbol indicating the temperature class.
The actual maximum surface temperature
depends not on the equipment itself, but
mainly on the operating conditions.
5Gb EPL equipment protec-
tion level
Potential ignition sources that are eective
or may become eective during normal
operation and expected malfunction.
Db
2. Safety

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2.5 Labelling / Safety marks
Product label
Article number
Model
Serial number
Ex marking
Date of manufacture (month/year)
Before mounting and commissioning the instru-
ment, ensure you read the operating instructions!
  


2. Safety

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2.6 Ignition hazard analysis
Relevantidentiedignition
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
■
Limitation 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-conduc-
tive parts
■
Limitation of layer thickness of non-conduc-
tive 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
2. Safety

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX 17
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3. Specications
Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Temperatureeect
When the temperature of the measuring system deviates from the refer-
ence temperature (+20 °C): max. ±0.6 %/10 K of full scale value
Case ingress protection 1) (perIEC/EN60529)
IP54, IP65
The materials used can be found in the instrument marking. See chapter
2.5 „Labelling / Safety marks“.
For further specications see WIKA data sheet PM 06.03 and the order
documentation.
1) For general use, no ATEX requirement
3.Specications

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4. Design and function
Description
Nominal size 63, 100 or 160 mm
The instruments measure the pressure by means of resilient pressure
elements
The measuring characteristics are in accordance with the EN 837-3
standard
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.
CAUTION!
Damage through improper transport
With improper transport, a high level of damage to property
can occur.
▶When unloading packed goods upon delivery as well as
during internal transport, proceed carefully and observe
the symbols on the packaging.
▶With internal transport, observe the instructions in chapter
5.2 “Packaging and storage”.
Shocks can cause small bubbles to form in the ll uid of
lled instruments. This has no eect on the function of the
instrument.
4. Design and function

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Operating instructions capsule pressure gauge, model 63x.50 per ATEX 19
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5.2 Packaging and storage
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during trans-
port (e.g. change in installation site, sending for repair).
Permissible storage temperature
-40 ... +70 °C
6. Commissioning, operation
WARNING!
Physical injuries and damage to property and the
environmentcausedbymediaescapingunderhigh
pressure
With the pressurisation of the instrument, as a result of
poor sealing of the process connection, media under high
pressure can escape.
Due to the high energy of the media that can escape in
the event of a failure, the possibility of physical injuries and
damage to property exists.
▶The sealing of the process connection must be carried out
expertly and checked for leak tightness.
6.1 Mechanical connection
In accordance with the general technical regulations for pressure gauges
(e.g. EN 837-2 “Selection and installation recommendations for pressure
gauges”).
Instruments must be grounded via the process connection.
5. Transport, packaging and storage

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This is why electrically conductive sealing should be used at the process
connection. Alternatively, take other measures for grounding. Grounding
measures applied from the factory (e.g. welding points or fuse plates)
must therefore be used to integrate the instruments into the equipoten-
tial bonding and must never be removed. Make sure that, following any
dismounting (e.g. instrument replacement), the grounding measures are
reinstalled.
For parallel threads, use at gaskets, lens-type sealing rings or WIKA
prole 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).
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 union or union nut should be used.
When a blow-out device is tted to a pressure gauge, it must be protect-
ed against being blocked by debris and dirt.
6.2 Requirementsfortheinstallationpoint
If the line to the measuring instrument is not adequately stable, an instru-
ment bracket should be used for fastening (and possibly via a exible
capillary). If vibrations cannot be avoided by means of suitable instal-
Installation with open-
ended spanner
Spanner ats Sealing in the thread

Sealing face 
6. Commissioning, operation