WIKA 4 User manual

Example: Model 432.50.100 per ATEX
EN
DE
Operating instructions
Betriebsanleitung
Pressure gauge model 4, NS100 and NS160 per ATEX
Manometer Typ 4, NG100 und NG160 nach ATEX

2WIKA operating instructions pressure gauge, model 4 per ATEX
2080276.09 12/2020 EN/DE
EN
DE
Operating instructions model 4 per ATEX Page 3 - 16
Betriebsanleitung Typ 4 nach ATEX Seite 17 - 30
© 12/2003 WIKA Alexander Wiegand SE & Co. KG
All rights reserved.
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!

3WIKA operating instructions pressure gauge, model 4 per ATEX
2080276.09 12/2020 EN/DE
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Contents
Contents
Declarations of conformity can be found online at www.wika.com.
1. General information 4
2. Safety 5
2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Responsibility of the operator . . . . . . . . . . . . . . . . 5
2.3 Personnel qualification. . . . . . . . . . . . . . . . . . . 6
2.4 Specifications and temperature limits. . . . . . . . . . . . . . 7
2.5 Special hazards . . . . . . . . . . . . . . . . . . . . . 8
2.6 Labelling / Safety marks . . . . . . . . . . . . . . . . . . 9
2.7 Special conditions for safe use (X conditions) . . . . . . . . . . .10
3. Specications 10
4. Design and function 11
5. Transport, packaging and storage 11
5.1 Transport . . . . . . . . . . . . . . . . . . . . . . .11
5.2 Packaging . . . . . . . . . . . . . . . . . . . . . . .11
5.3 Storage . . . . . . . . . . . . . . . . . . . . . . . .11
6. Commissioning, operation 12
6.1 Mechanical connection . . . . . . . . . . . . . . . . . .12
6.2 Commissioning . . . . . . . . . . . . . . . . . . . . .14
7. Maintenance and cleaning 14
7.1 Maintenance . . . . . . . . . . . . . . . . . . . . . .14
7.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . .14
8. Dismounting and disposal 15
8.1 Dismounting . . . . . . . . . . . . . . . . . . . . . .15
8.2 Disposal . . . . . . . . . . . . . . . . . . . . . . .15
Annex: EU declaration of conformity 16

WIKA operating instructions pressure gauge, model 4 per ATEX4
2080276.09 12/2020 EN/DE
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1. General information
1. General information
The instrument described in the operating instructions has been designed and manufac-
tured 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 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 insuciently qualied skilled personnel or unauthorised modications to
the instrument.
The general terms and conditions contained in the sales documentation shall apply.
Subject to technical modications.
Further information:
- Internet address: www.wika.de / www.wika.com
Model Data sheet
432.50, 433.50, 432.30, 433.30,
452.50, 453.50, 452.30, 453.30
PM 04.03
432.56, 433.56, 432.36, 433.36,
452.56, 453.56, 452.36, 453.36
PM 04.07
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 hazardous area that
results in serious injury or death, if not avoided.

5WIKA operating instructions pressure gauge, model 4 per ATEX
2080276.09 12/2020 EN/DE
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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
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.
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 analy-
sis. The responsibility for classication of zones lies with the plant manager 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 opera-
tor must take appropriate protective measures.

WIKA operating instructions pressure gauge, model 4 per ATEX6
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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-conductive 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 equipo-
tential bonding of the system during installation 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 materials used can be found in the instru-
ment marking. See chapter “2.6 Labelling / Safety marks”.
On the wetted parts of the instrument, small residual amounts of the adjust-
ment medium (e.g. compressed air, water, oil) can adhere from production.
With increased requirements for technical cleanliness, suitability for the appli-
cation 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 qualification
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. Safety

7WIKA operating instructions pressure gauge, model 4 per ATEX
2080276.09 12/2020 EN/DE
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2. Safety
Special knowledge for working with instruments for hazardous areas:
The skilled personnel must have knowledge of ignition protection types, regulations and
provisions for equipment in hazardous areas.
2.4 Specifications and temperature limits
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 are
followed.
▶
Instruments must be grounded via the process connection.
Permissible ambient temperature
-20 ... +60 °C
-40 ... +60 °C (optional, only with silicone oil lling)
Permissible medium temperature
-20 ... +100 °C
-20 ... +200 °C (optional, unlled instruments or with silicone oil lling)
-40 ... +100 °C (optional, only with silicone oil lling)
-40 ... +200 °C (optional, only with silicone oil lling)
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.
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)
unlledorwithsili-
coneoillling
lledinstruments
(except for silicone oil)
T6 (T > 85 °C) +65 °C +65 °C
T5 (T > 100 °C) +80 °C +80 °C

WIKA operating instructions pressure gauge, model 4 per ATEX8
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Required temperature class
(ignition temperature of gas
or vapour)
Maximum permissible surface temperature of the
instrument (for the end application)
unlledorwithsili-
coneoillling
lledinstruments
(except for silicone oil)
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
Explosive dust atmosphere
For dusts, the procedure specied 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 ignition temperature depends on the
dust layer thickness per IEC/EN 60079-14.
Ignition temperature of
dust
Maximum permissible surface temperature of the instru-
ment (for the end application)
Dust cloud: Tcloud < 2/3 Tcloud
Dust layer: Tlayer < Tlayer − 75 K − (reduction depending on the layer thickness)
The medium temperature must not exceed the lowest determined value for the maximum
permissible surface temperature, 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.
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 stand-
ard regulations, the appropriate existing codes or regulations must also be
followed.
Instruments with PTFE lining
WARNING!
Media which can become electrostatically charged are not permissible for
instruments with PTFE lining.
▶
Select media that do not generate any electrostatic charge.
For additional important safety instructions see chapter “2.4 Specications and temperature
limits”.
2. Safety

9WIKA operating instructions pressure gauge, model 4 per ATEX
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WARNING!
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment.
▶
Take sucient precautionary measures.
2.6 Labelling / Safety marks
Dial
ATEX marking:
II 2G c IIC TX X
II 2D c TX X
Serial number
The legibility of the marking must be observed during time in use but at least during inspec-
tion periods of three years. If any harm of the legibility is found please contact the manufac-
turer to renew the marking.
Product label
Model
Article number
Permissible ambient temperature
Date of manufacture (month/year)
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 bae
wall in accordance with EN 837.



2. Safety

WIKA operating instructions pressure gauge, model 4 per ATEX10
2080276.09 12/2020 EN/DE
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Additional label for instruments with PTFE lining
For instruments with PTFE lining, measures must be taken in the lining area, if necessary, in
order to exclude electrostatic charging.
2.7 Special conditions for safe use (X conditions)
1. All accessories (e.g. valves or attachment components) must be assessed in combina-
tion 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 electrostatic 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.
3. Specifications
Pressure limitation
Models 432.50, 433.50, 432.30, 433.30, 452.50, 453.50, 452.30, 453.30:
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 5 x full scale value, however max. 40 bar
Models 432.56, 433.56, 432.36, 433.36, 452.56, 453.56, 452.36, 453.36:
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 40, 100 or 400 bar
Temperatureeect
When the temperature of the measuring system deviates from the reference
temperature (+20 °C):
max. ±0.8 %/10 K of full scale value
2.Safety/3.Specications