WIKA NG 100 User manual

DE
EN
Operating instructions
Betriebsanleitung
Mode d’emploi
Manual de instrucciones
ES
FR
Example: Model 232.50.100 per ATEX
Pressure gauge model 2, NS 100 and NS 160 per ATEX
Manometer Typ 2, NG 100 und NG 160 nach ATEX
Manomètre type 2, diam. 100 et diam. 160 selon ATEX
Manómetro modelo 2, NG 100 y NG 160 según ATEX

DE
EN
ES
FR
14375375.02 06/2020 EN/DE/FR/ES
WIKA operating instructions pressure gauge, model 2 per ATEX
2
© 12/2019 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!
Operating instructions model 2 per ATEX Page 3 - 32
Betriebsanleitung Typ 2 nach ATEX Seite 33 - 62
Mode d'emploi type 2 selon ATEX Page 63 - 92
Manual de instrucciones modelo 2 según ATEX Página 93 - 122

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 3
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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........................................................ 8
2.3 Personnel qualification ................................................................ 10
2.4 Safety instructions for hazardous locations ................................. 10
2.5 Labelling / Safety marks .............................................................. 16
2.6 Special conditions for safe use (X conditions)............................. 18
2.7 Ignition hazard analysis............................................................... 19
3. Specications 20
4. Design and function 21
5. Transport, packaging and storage 22
5.1 Transport ..................................................................................... 22
5.2 Packaging and storage................................................................ 22
6. Commissioning, operation 23
6.1 Mechanical connection ............................................................... 23
6.2 Requirements for the installation point ........................................ 24
6.3 Installation................................................................................... 25
6.4 External zero point setting (if available)....................................... 26
6.5 Permissible ambient and operating temperatures ....................... 26
6.6 Permissible vibration load at the installation site ......................... 27
6.7 Level check ................................................................................. 27
6.8 Commissioning ........................................................................... 27
7. Faults 28
8. Maintenance and cleaning 30
8.1 Maintenance ............................................................................... 30
8.2 Cleaning...................................................................................... 30
9. Dismounting, return and disposal 30
9.1 Dismounting................................................................................ 30
9.2 Return ......................................................................................... 31
9.3 Disposal ...................................................................................... 31
Annex: EU Declaration of conformity 32

EN
WIKA operating instructions pressure gauge, model 2 per ATEX4
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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.
Further information:
- Internet address: www.wika.de / www.wika.com
1. General information

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 5
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Model Model ID Data sheet
232.50.1x0, 233.50.1x0, 262.50.1x0, 263.50.1x0 A PM 02.02
232.30.1x0, 233.30.1x0, 262.30.1x0, 263.30.1x0 B PM 02.04
232.36.1x0, 233.36.1x0 C PM 02.15
PG23LT D PM 02.22
PG23CP E PM 02.24
232.53, 232.54, 233.53, 233.54 F -
PG28 G PM 02.32
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

EN
WIKA operating instructions pressure gauge, model 2 per ATEX6
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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: Liquid or gaseous, group 1 (dangerous)
Maximum permissible pressure PS, see chapter 2.5 “Labelling /
safety marks”
Volume of wetted parts: < 0.1 l
The instrument must only be used with media which are not harmful
to the wetted parts over the entire operating range of the instrument.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 7
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2. Safety
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 3 “Specications”.
Suitability for use in accordance with model ID
See chapter 1 for the assignment of model ID to model.
Application Model ID
A B C D E F G
Gaseous and liquid aggressive media that are not highly
viscous or crystallising, also in aggressive environments

Process industry: Chemical industry, petrochemical
industry, oil and gas, power generation, water and
wastewater technology, machine building and general
plant construction

High dynamic pressure loads and vibrations (only with
optional case liquid lling)

Increased safety requirements for personal protection1)  
Especially suited for occasional short-duration
overpressure loads of up to 4 times the measuring range

For outdoor use with ambient temperatures
down to -70 °C 2)
 
Particularly suitable for use in wellhead control panels
(WHCPs) and hydraulic power units (HPUs)

1) Option or model 2xx.3x
2) Option for model PG28
The instrument has been designed and built solely for the intended use
described here, and may only be used accordingly.

EN
WIKA operating instructions pressure gauge, model 2 per ATEX8
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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 analysis. The responsibility for classication of zones
lies with the plant operator and not the manufacturer/supplier of the
equipment.
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.

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 9
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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.
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.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX10
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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.
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.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 11
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WARNING!
It is imperative that the application conditions and safety
requirements of the EU-type examination certicate 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 232, 262, PG23CP, PG28: -40 ... +60 °C (unlled)
Model 233, 263, PG23CP, PG28: -20 ... +60 °C (glycerine lling)
-40 ... +60 °C (silicone oil lling)
Model PG23LT: -70 ... +60 °C 1) (silicone oil lling)
1) Option for model PG28
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.
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.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX12
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2. Safety
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 temper-
ature, 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)
Models 232, 262,
PG23CP, PG28
(unlledinstruments)
Models 233, 263,
PG23LT, PG23CP, PG28
(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
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.

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 13
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Ignition temper-
ature 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.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX14
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Special hazards
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.
For gaseous media and operating pressures > 25 bar a
pressure gauge with safety version S3 is recommended per
EN 837-2.
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 6
II 2 G Ex h IIC T6 ...T1 Gb X
II 2 D Ex h IIIC T85°C ...T450°C Db X
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 15
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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, approved 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.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX16
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ID Marking Designation Meaning
5Gb EPL equipment
protection level
Potential ignition sources that are eective
or may become eective during normal
operation and expected malfunction.
Db
6XSpecic conditions
of use, see operating
instructions
Ambient temperature with special range.
Specic conditions of use apply.
2.5 Labelling / Safety marks
Dial
Materials of wetted parts
Product label
   


2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 17
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Warning label for electrostatic
charging(optional)
Additionallabelforliquidlling
(optional)

Model
Volume of wetted parts
Maximum permissible pressure PS
Serial number
Year of manufacture
Article number
Case lling
Before mounting and commissioning the instru-
ment, ensure you read the operating instructions!
The instrument bearing this mark is a safety pressure gauge
with a solid bae wall in accordance with EN 837.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX18
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2.6 Specialconditionsforsafeuse(Xconditions)
1. All accessories (e.g. valves or attachment components) must be
assessed in combination with the delivered instruments by the end
user.
2. The operator must recognise ignition hazards and take suitable
protective measures. See chapter 2.2 “Responsibility of the operator”.
3. 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”.
4. For instruments with marking pointer, ensure that there are no electro-
static charging mechanisms at the marking pointer.
5. Avoid any kind of external impact. External impacts can generate
sparks through friction processes between dierent materials.
6. The lling/relling of instruments by non-authorised personnel leads
to a loss of the explosion protection and can lead to damage to the
instrument.
2. Safety

EN
WIKA operating instructions pressure gauge, model 2 per ATEX 19
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2.7 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

EN
WIKA operating instructions pressure gauge, model 2 per ATEX20
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3. Specications
Pressure limitation
Models 232.50, 233.50, 232.30, 233.30, 262.50, 263.50, 262.30, 263.30,
232.53, 232.54, 233.53, 233.54, PG23LT, PG23CP, PG28:
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Models 232.36 and 233.36:
Steady: End value of measuring range
Fluctuating: 0.9 x end value of measuring range
Short time: Overload range
Temperatureeect
When the temperature of the measuring system deviates from the refer-
ence temperature (+20 °C): max. ±0.4 %/10 K of full scale value
Case ingress protection 1) (perIEC/EN60529)
Model 2xx, PG23CP, PG28: IP65, IP66
Model 2xx.3x and back mount: IP54
Model PG23LT for scale range > 0 ... 16 bar: IP66 / IP67
Model PG23LT for scale range ≤ 0 ... 16 bar: IP65
For further specications see WIKA data sheets PM 02.02, PM 02.04,
PM 02.15, PM 02.22, PM 02.24 and/or PM 02.32 and the order
documentation.
1) For general use, no ATEX requirement
3.Specications