WIKA PG81 Manual de usuario
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
EN
DE
FR
ES
Pressure gauges DirectDrive version,
models PG81 and PG91
Manometer DirectDrive-Ausführung,
Typen PG81 und PG91
Manomètres version DirectDrive,
types PG81 et PG91
Manómetros versión DirectDrive,
modelos PG81 y PG91
Model PG81 Model PG91
2
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WIKA operating instructions models PG81 and PG91
EN
DE
FR
ES
© 07/2022 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 models PG81 and PG91 Page 3 - 16
Betriebsanleitung Typen PG81 und PG91 Seite 17 - 30
Mode d'emploi types PG81 et PG91 Page 31 - 44
Manual de instrucciones modelos PG81 y PG91 Página 45 - 58
3WIKA operating instructions models PG81 and PG91
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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 9
5. Commissioning, operation 10
6. Faults 11
7. Maintenance and cleaning 12
8. Dismounting, return and disposal 13
9. Specifications 15
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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 strin-
gent 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 instru-
ment. 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 01.50
- Application consultant: Tel.: +49 9372 132-0
Fax: +49 9372 132-406
info@wika.de
1. General information
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2. Design and function
2. Design and function
2.1 Overview
Dial with pressure scale and, if necessary, further individual markings
Pointer
Window
Blow-out device 1) with pressure compensation film 2)
Case
Process connection
1) prevents the ejection of the window in the event of a sudden pressure increase in the case
2) protects against the ingress of dust and water into the case
2.2 Description
The models PG81 and PG91 are DirectDrive pressure gauges.The pointer is thus
displaced directly by the pressure element without a movement or the pointer itself is
the pressure element.The model PG81 is a DirectDrive pressure gauge with spiral tube
design and the model PG91 is with a helical tube design. In comparison with a traditio-
nal pressure gauge, the vibration and shock resistance of the model is increased and, in
addition, a particularly flat design is enabled.
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 pressure gauges in DirectDrive design should be used exclusively for measuring
static pressures in dry, gaseous, not highly viscous and non-crystallising media that will
not attack copper alloy parts.The process connection and the measuring line must be
dry and free from foreign bodies. Avoid rapid and frequent load cycles.
The scope of application is defined by the technical performance limits and materials.
The pressure gauges have been designed for industrial applications in indoor and
outdoor areas.This instrument is no “safety accessory”.
Maximum pressure limitation
■Steady: 3/4 x full scale value (corresponds in further course to the described max.
permissible operating pressure, marked by “PS”)
■Short time: Full scale value of the pressure scale
Permissible temperature ranges
■Ambient: -20 … +65 °C
■Medium: -20 … +65 °C
■Storage: -40 … +70 °C
3. Safety
7WIKA operating instructions models PG81 and PG91
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Ingress protection
IP65 per EN/lEC 60529
For further specifications see WIKA data sheet PM 01.50, the order documentation and
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
department of the manufacturer.
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.
▶Only operate the instrument in the specified pressure and temperature
range.
▶Do not block the blow-out device on the back of the case.
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.
Any permanent operation in the overload range is not permitted. Over the highest
permissible operating pressure up to the overload limit, the models PG81 and PG91
operate outside their specifications.The overload range is intended to prevent damage
to the models PG81 and PG91, as part of a pressure vessel system, during the pressure
containment test.
The overload limit must never be exceeded, even when failures occur in the end-use
application. Loads above the overload limit can cause irreversible damage, which can
lead, for example, to permanent measuring errors.
Any permissible operating conditions (e.g. pressure and temperature ranges, environ-
mental influences, shock or vibration) must be observed.
3. Safety
8WIKA operating instructions models PG81 and PG91
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3.3 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.
3.4 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 technolo-
gy and on their experience and knowledge of country-specific regulations, current
standards and directives, are capable of carrying out the work described and indepen-
dently recognising potential hazards.
3.5 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!
3. Safety
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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.
3.6 Dial layout (example)
Pressure scale and optional secondary scale Pressure unit
CE marking (only PS ≥ 200 bar) and,
if required, further approval marks
Specification of max. operating pressure
“PS”
Company logo and model designation Surface for marking,
e.g.“oil and grease free”
3. Safety
10 WIKA operating instructions models PG81 and PG91
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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 inter-
nal 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
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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