WIKA 116.18.02 Series User manual

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DE
FR
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Operating instructions
Betriebsanleitung
Mode d‘emploi
Manual de instrucciones
Model 116.18.02x
Pressure gauges DirectDrive version,
model 116.18.02x, miniature nominal sizesmodel 116.18.02x, miniature nominal sizes
Druckmessgeräte DirectDrive-Ausführung,
Typ 116.18.02x, Miniatur-Nenngrößen
Manomètres version DirectDrive,
type 116.18.02x, diamètres miniatures
Manómetros versión DirectDrive,
modelo 116.18.02x, diámetros nominales en miniatura

EN
DE
FR
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2
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WIKA operating instructions model 116.18.02x
Operating instructions model 116.18.02x Page 3 - 18
Betriebsanleitung Typ 116.18.02x Seite 19 - 34
Mode d'emploi type 116.18.02x Page 35 - 50
Manual de instrucciones modelo 116.18.02x Página 51 - 66
© 01/2023 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!

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Contents
Contents
Declarations of conformity can be found online at www.wika.com.
1. General information 4
2. Design and function 5
3. Safety 6
4. Transport, packaging and storage 10
5. Commissioning, operation 11
6. Faults 13
7. Maintenance and cleaning 14
8. Dismounting, return and disposal 15
9. Specifications 17

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1. General information
■The mechanical pressure measuring instrument described in the operating instructions
has been designed and manufactured using state-of-the-art technology. All compo-
nents are subject to stringent quality and environmental criteria during production. Our
management systems are certified 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 regula-
tions 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. Pass
the operating instructions on to the next operator or owner of the instrument.
■Skilled personnel must have carefully read and understood the operating instructions
prior to beginning any work.
■The general terms and conditions contained in the sales documentation shall apply.
■Subject to technical modifications.
■Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: PM 01.18
- Application consultant: Tel.: [phone]
[e-mail]
1. General information

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   
2. Design and function
2. Design and function
2.1 Overview
Pointer
Dial with pressure scale 1)
Case
Window
Blow-out device 2) with compensation foil 3) for overpressure
1) See chapter 3.7 “Dial layout”
2) Prevents the ejection of the window in the event of a sudden pressure increase in the case
3) Protects against the ingress of dust and water into the case
2.2 Description
The pressure gauges in DirectDrive version do not require a movement. The measuring
element of the model 116.18.02x is designed in a helical form.The pressure element acts
as a pointer itself. The shape of the pressure element provides for a pointer rotation propor-
tional to the pressure. With this, on the one hand, the vibration resistance of the model is
increased and on the other it enables a particularly flat design.
2.3 Scope of delivery
Cross-check scope of delivery with delivery note.

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3. Safety
3.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in serious injury
or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or
damage to property or the environment, if not avoided.
WARNING!
... indicates a potentially dangerous situation that can result in burns, caused
by hot surfaces or liquids, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and
trouble-free operation.
3.2 Intended use
The mechanical pressure measuring instruments in DirectDrive design should be used
exclusively for measuring static pressures in dry, gaseous, not highly viscous and non-crys-
tallising media that will not attack copper alloy parts.The process connection and the
measuring line must be dry and free from foreign bodies.
The scope of application is defined by the technical performance limits and materials.
The pressure measuring instruments have been designed for industrial applications in
indoor and outdoor areas.
Improper use is defined as any application that exceeds the technical performance limits or
is not compatible with the materials. Checking against improper use is the responsibility of
the operator.
Classification of pressure equipment
■Instrument type: Pressure accessory without safety function
■Media: Liquid or gaseous, group 1 (hazardous)
■Maximum permissible pressure PS, see chapter 3.7 “Dial layout”
■Volume of wetted parts: < 0.1 L
Maximum pressure limitation
■Steady: 3/4 x full scale value of the pressure scale
■Short time: Full scale value of the pressure scale
Permissible temperature ranges
■Ambient: -20 ... +60 °C [-4 ... +140 °F]
■Medium: -20 ... +60 °C [-4 ... +140 °F]
■Storage: --40 ... +70 °C [-40 ... +158 °F]
3. Safety

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Ingress protection:
IP65 per lEC/EN 60529
For further specifications, see WIKA data sheet PM 01.18 and order documentation as well
as chapter 9 “Specifications”.
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.
Any operation of the instruments deviating from the above provisions must be clearly
discussed, tested and approved in advance in detail with the responsible technical depart-
ment of the manufacturer.
3.3 Improper use
WARNING!
Injuries through improper use
Improper use of the instrument can lead to hazardous situations and injuries.
▶Refrain from unauthorised modifications to the instrument.
▶Do not use the instrument within hazardous areas.
▶Do not use the instrument with abrasive or viscous media.
▶The blow-out device must not be blocked.
Any use beyond or different to the intended use is considered as improper use.
3.4 Responsibility of the operator
The instrument should only be used in industrial applications.The operator is therefore
responsible for legal obligations regarding safety at work.
The safety instructions within these operating instructions, as well as the safety, accident
prevention and environmental protection regulations for the application area must be
maintained.
To ensure safe working on the instrument, the operating company must ensure the following:
■First aiders and first-aid equipment must be available at all times in case they are
needed.
■The operating personnel must be regularly instructed in all topics regarding work safety,
first aid and environmental protection. Ensure that the operating instructions and, in
particular, the safety instructions contained therein are known.
■The suitability of the instrument in accordance with its intended use must be tested for
the particular application.
■Personal protective equipment must be provided.
3. Safety

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3.5 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient
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 qualifications described
below.
Skilled personnel
Skilled personnel, authorised by the operator, 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-specific regulations, current standards and
directives, are capable of carrying out the work described and independently recognising
potential hazards.
3.6 Personal protective equipment
The personal protective equipment is designed to protect the skilled personnel from
hazards that could impair their safety or health during work. When carrying out the various
tasks on and with the instrument, the skilled personnel must wear personal protective
equipment.
Follow the instructions displayed in the work area regarding personal protective equipment!
The requisite personal protective equipment must be provided by the operating company.
Wear safety goggles!
Protect eyes from flying particles and liquid splashes.
Wear protective gloves!
Protect hands from friction, abrasion, cuts or deep injuries and also from
contact with hot surfaces and aggressive media.
3. Safety

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3.7 Dial layout
Company logo and model designation “Oil- and grease-free” marking (optional)
CE marking (only PS ≥ 200 bar) and, if
required, further approval marks
Specification of max. operating pressure “PS”
Pressure scale Pressure unit
bar
300
200
100
0
315
PS=236bar
116.18.02x


 


3. Safety

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4. Transport, packaging and storage
4.1 Transport
Check the instrument and the transport container 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 4.2 “Packaging
and storage”.
4.2 Packaging and storage
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).
Permissible conditions at the place of storage
■Storage temperature: -40 ... +70 °C [-40 ... +158 °F]
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
■Hazardous environments, flammable atmospheres
Store the instrument in its original packaging in a location that fulfils the conditions listed
above. If the original packaging is not available, please contact WIKA.
4. Transport, packaging and storage

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5. Commissioning, operation
Personnel: Skilled personnel
Protective equipment: Safety goggles, protective gloves
Tools: Open-ended spanner
WARNING!
Physical injuries and damage to property and the environment caused
by hazardous media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable or
toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic, radioac-
tive), and also with refrigeration plants and compressors, there is a danger of
physical injuries and damage to property and the environment.
Aggressive media with extremely high temperatures and under high pressure
or vacuum may be present at the instrument. In the event of failure, compo-
nents can be ejected or media exhausted under high pressure.
▶For these media, in addition to all standard regulations, the appropriate
existing codes or regulations must also be followed.
▶Wear the requisite protective equipment (see chapter 3.6 “Personal
protective equipment”).
WARNING!
Risk of burns
The surface of the instrument may heat up due to hot media.
▶Prevent direct contact!
5.1 Requirements for the installation location
For internal and external operation. Protect the instrument from direct sunlight.
5.2 Mechanical connection
■Follow the general technical regulations for pressure measuring instruments (e.g.
EN 837-2 “Selection and installation recommendations for pressure gauges”).
■It must be ensured that the process connection of the system is not pressurised during
fitting and dismounting of the pressure gauge.
■If the pressure measuring instrument is mounted lower than the pressure tapping point,
the measuring line must be cleaned thoroughly before connection in order to clear out
any foreign matter. Before fitting, all measuring lines must be dry.
■When screwing the instruments in, the force required for sealing must not be applied
through the case, but only through the spanner flats provided for this purpose at the
square block of the connection shank, and using a suitable tool.
5. Commissioning, operation

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For sealing the pressure gauge connections with parallel threads, use flat gaskets,
lens-type sealing rings or WIKA profile sealings at the sealing face . With a tapered
thread (e.g. NPT thread), sealing is made in the thread using additional sealing materi-
als, e.g. PTFE tape (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 adjusting
nut or union nut should be used.
Pressure surges must be avoided at all costs, open the shut-off valves slowly.
Spanner flats
Sealing face 
Sealing in the
thread 
Installation with open-ended spanner Sealing of the process connection
5. Commissioning, operation

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6. Faults
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 pressure or signal is no longer present and protect against
accidental commissioning.
▶Contact the manufacturer.
▶If a return is needed, please follow the instructions given in chapter 8.2
“Return”.
WARNING!
Physical injuries and damage to property and the environment caused
by hazardous media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable or
toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic, radioac-
tive), and also with refrigeration plants and compressors, there is a danger of
physical injuries and damage to property and the environment.
Should a failure occur, aggressive media with extremely high temperature
and under high pressure or vacuum may be present at the instrument.
▶For these media, in addition to all standard regulations, the appropriate
existing codes or regulations must also be followed.
▶Wear the requisite protective equipment (see chapter 3.6 “Personal
protective equipment”).
6.1 Reasons and measures
Fault Cause Measure
Indication error Inadmissible operating
conditions, e.g. exceeding the
pressure limitation
Replace pressure measuring
instrument, see chapter 8
“Dismounting, return and
disposal”
Window misted up on the inside Compensation foil for
overpressure has come loose
Replace pressure measuring
instrument, see chapter 8
“Dismounting, return and
disposal”
Functionality of the
'as-delivered' condition is no
longer fullled
Transport damage Return to the manufacturer
6. Faults

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7. Maintenance and cleaning
Personnel: Skilled personnel
Protective equipment: Safety goggles, protective gloves
7.1 Maintenance
This pressure measuring instrument is maintenance-free. Defective instruments must be
replaced by new instruments immediately.
7.2 Cleaning
CAUTION!
Physical injuries and damage to property and the environment
Improper cleaning may lead to physical injuries and damage to property and
the environment. Residual media in the dismounted instrument can result in a
risk to persons, the environment and equipment.
▶Carry out the cleaning process as described below.
CAUTION!
Damage to the instrument
Improper cleaning may lead to damage to the instrument!
▶Do not use any aggressive cleaning agents.
▶Do not use any hard or pointed objects for cleaning.
1. Before cleaning, correctly disconnect the instrument from the pressure supply.
2. Use the requisite protective equipment.
3. Clean the instrument with a moist cloth.
7. Maintenance and cleaning

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8. Dismounting, return and disposal
Personnel: Skilled personnel
Protective equipment: Safety goggles, protective gloves
Tool: Open-ended spanner
WARNING!
Physical injuries and damage to property and the environment
through residual media
Upon contact with hazardous media (e.g. oxygen, acetylene, flammable or
toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic, radioac-
tive), and also with refrigeration plants and compressors, there is a danger of
physical injuries and damage to property and the environment.
▶Before storage of the dismounted instrument (following use) wash or
clean it, in order to protect persons and the environment from exposure to
residual media.
▶Wear the requisite protective equipment (see chapter 3.6 “Personal
protective equipment”).
WARNING!
Risk of burns
During dismounting there is a risk of dangerously hot media escaping.
▶Let the instrument cool down sufficiently before dismounting it!
WARNING!
Physical injury
When dismounting, there is a danger from aggressive media and high
pressures.
▶Wear the requisite protective equipment (see chapter 3.6 “Personal
protective equipment”).
▶Observe the information in the material safety data sheet for the corre-
sponding medium.
▶Disconnect once the pressure measuring instrument has been depressur-
ised!
8.1 Dismounting
1. Before dismounting, make sure that the measuring point is not pressurised and has
cooled down.
2. Dismount the pressure gauge with an open-ended spanner using the spanner flats of
the process connection.
8. Dismounting, return and disposal

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8.2 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.
WARNING!
Physical injuries and damage to property and the environment
through residual media
Residual media in the dismounted instrument can result in a risk to persons,
the environment and equipment.
▶In case of hazardous substances, enclose the material safety data sheet
for the corresponding medium.
▶Clean the instrument, see chapter 7.2 “Cleaning”.
Cleaning for return
If the instruments are free from hazardous materials, it does not make sense
to clean them thoroughly in the event of a return since the media may be
relevant to the failure analysis.
When returning the instrument, use the original packaging or a suitable transport
packaging.
Information on returns can be found under the heading “Service” on our local
website.
8.3 Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an environmentally compat-
ible way and in accordance with the country-specific waste disposal regulations.
8. Dismounting, return and disposal

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9. Specifications
Specifications
Nominal size (NS) ■Ø 23 mm [0.91"]
■Ø 24 mm [0.94"]
■Ø 25 mm [0.98"]
■Ø 26 mm [1.02"]
■Ø 27 mm [1.06"]
■Ø 28 mm [1.10"]
■Ø 29 mm [1.14"]
Accuracy 1) ■±5 % of measuring span
■±2.5 % at a defined pressure value
Maximum pressure limitation Steady: 3/4 x full scale value
Short time: Full scale value
Permissible temperature range Ambient: -20 ... +60 °C [-4 ... +140 °F]
Medium: -20 ... +60 °C [-4 ... +140 °F]
Storage: -40 ... +70 °C [-40 ... +158 °F]
Temperature effect max. ±0.4 %/10 K of span
When the temperature of the measuring system
deviates from the reference temperature (+20 °C)
Ingress protection per IEC/EN 60529 IP65
Process connection
Material
Connection location
■Copper alloy, nickel-plated
■Copper alloy, natural finish
Centre back mount
Type of measuring element Helical tube, copper alloy
Dial
Material
Scale angle
■Aluminium, white
■Plastic, white
Indication angle 120° ±15°
Instrument pointer Copper alloy, black
Case ■Copper alloy, nickel-plated
■Copper alloy, natural finish
Window Polycarbonate
1) Including non-linearity, hysteresis, zero offset and end value deviation
9. Specifications

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Inhalt
Inhalt
Konformitätserklärungen finden Sie online unter www.wika.de.
1. Allgemeines 20
2. Aufbau und Funktion 21
3. Sicherheit 22
4. Transport, Verpackung und Lagerung 26
5. Inbetriebnahme, Betrieb 27
6. Störungen 29
7. Wartung und Reinigung 30
8. Demontage, Rücksendung und Entsorgung 31
9. Technische Daten 33

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1. Allgemeines
■Das in der Betriebsanleitung beschriebene mechanische Druckmessgerät wird nach
dem aktuellen Stand der Technik konstruiert und gefertigt. Alle Komponenten unterlie-
gen während der Fertigung strengen Qualitäts- und Umweltkriterien. Unsere Manage-
mentsysteme sind nach ISO 9001 und ISO 14001 zertifiziert.
■Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit dem Gerät.Voraus-
setzung für sicheres Arbeiten ist die Einhaltung aller angegebenen Sicherheitshinweise
und Handlungsanweisungen.
■Die für den Einsatzbereich des Gerätes geltenden örtlichen Unfallverhütungsvorschrif-
ten und allgemeinen Sicherheitsbestimmungen einhalten.
■Die Betriebsanleitung ist Produktbestandteil und muss in unmittelbarer Nähe des
Gerätes für das Fachpersonal jederzeit zugänglich aufbewahrt werden. Betriebsanlei-
tung an nachfolgende Benutzer oder Besitzer des Gerätes weitergeben.
■Das Fachpersonal muss die Betriebsanleitung vor Beginn aller Arbeiten sorgfältig
durchgelesen und verstanden haben.
■Es gelten die allgemeinen Geschäftsbedingungen in den Verkaufsunterlagen.
■Technische Änderungen vorbehalten.
■Weitere Informationen:
- Internet-Adresse: www.wika.de / www.wika.com
- Zugehöriges Datenblatt: PM 01.18
- Anwendungsberater: Tel.: [phone]
[e-mail]
1. Allgemeines