WIKA WUD-20 User manual
Operating instructions
Betriebsanleitung
EN
DE
Model WUD-20 Model WUD-25 Model WUD-26
Ultra High Purity Transducer, Typ WUD-2x
Ultra High Purity transducer, model WUD-2x
2WIKA operating instructions Ultra High Purity transducer, model WUD-2x
EN
DE
11611057.05 08/2021 EN/DE
Operating instructions model WUD-2x Page 1 - 36
Betriebsanleitung Typ WUD-2x Seite 37 - 71
© 11/2013 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!
3WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
EN
1. General information........................................................................4
2. Design and function .......................................................................5
2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Description ..............................................................................6
2.3 Scope of delivery .........................................................................6
3. Safety....................................................................................6
3.1 Explanation of symbols .................................................................... 6
3.2 Intended use ............................................................................7
3.3 Improper use ............................................................................8
3.4 Personnel qualification ....................................................................8
3.5 Labelling, safety markings..................................................................9
3.6 Ex marking .............................................................................10
4. Transport, packaging and storage...........................................................11
4.1 Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Packaging and storage ...................................................................11
5. Commissioning, operation .................................................................12
5.1 Mechanical mounting ....................................................................13
5.2 Electrical mounting ......................................................................14
5.3 Menu navigation, operation................................................................19
5.4 Setting the zero point.....................................................................25
6. Faults...................................................................................25
7. Maintenance and cleaning .................................................................28
7.1 Maintenance ...........................................................................28
7.2 Cleaning ...............................................................................29
8. Dismounting, return and disposal...........................................................30
8.1 Dismounting ............................................................................30
8.2 Return.................................................................................31
8.3 Disposal ...............................................................................31
9. Specifications............................................................................32
Appendix 1: EC Declaration of conformity model WUD-2x ..........................................70
Appendix 2: Control drawing 14097836 ..........................................................71
Contents
Contents
4WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
EN
1. General information
■The transducer 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 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 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. Pass the operating instructions
onto 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: PE 87.08
- Application consultant: Tel.: +49 9372 132-0
Fax: +49 9372 132-406
info@wika.de
1. General information
5WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
EN
2. Design and function
2.1 Overview
Display Spanner flats Main key
Zero point adjustment Process connection (depending on version) Down key
Product label Status LEDs Up key
2. Design and function
6WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
EN
2. Design and function / 3. Safety
2.2 Description
The transducer is an electronic pressure measuring instrument with a digital display.The applied
pressure is converted into an analogue electrical output signal. The analogue output signal is picked up
through a plug connection. Using the digital display, the pressure can be read directly from the pressure
measuring instrument.
Optionally 2 settable switching outputs are available.
Functions
■Analogue output signal
■2 switching outputs (optional)
■Display
■Switching functions (hysteresis, delay (damping)
■Zero point adjustment
2.3 Scope of delivery
■Transducer
■Protection cap for process connection
■Operating instructions
Cross-check scope of delivery with delivery note.
3. Safety
3.1 Explanation of symbols
DANGER!
... indicates a potentially dangerous situation in the hazardous area that results in serious
injury or death, if not avoided.
7WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
EN
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
equipment or the environment, if not avoided.
Information
... points out useful tips, recommendations and information for efficient and trouble-free
operation.
3.2 Intended use
The transducer is an electronic pressure measuring instrument for indoor use.The areas of use are
industrial applications within clean rooms. Gaseous or liquid media can be measured.
Only use the transducer in applications that lie within its technical performance limits. Compatibility of
the media and the materials must be checked by the operator.
→ Performance limits see chapter 9 “Specifications”.
For applications in hazardous areas
Within Class 1 Division 2 hazardous areas, only install and operate transducers with FM marking.
For marking, see chapter 3.5 “Labelling, safety markings”.
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.
3. Safety
8WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
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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, if it is not correspondingly marked.
Any use beyond or different to the intended use is considered as improper use.
3.4 Personnel qualification
WARNING!
Risk of injury should qualification be insufficient
Improper handling can result in considerable injury and damage to equipment.
▶The activities described in these operating instructions may only be carried out by
personnel who have the qualifications described below.
Skilled electrical personnel
Skilled electrical personnel are understood to be personnel who, based on their technical training,
know-how and experience as well as their knowledge of country-specific regulations, current standards
and directives, are capable of carrying out work on electrical systems and independently recognising
and avoiding potential hazards.The skilled electrical personnel have been specifically trained for the
work environment they are working in and know the relevant standards and regulations.The skilled
electrical personnel must comply with current legal accident prevention regulations.
Special knowledge for working with instruments for hazardous areas:
The skilled electrical personnel must have knowledge of ignition protection types, regulations and provi-
sions for equipment in hazardous areas.
Special operating conditions require further appropriate knowledge, e.g. of aggressive media.
3. Safety
9WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
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3. Safety
3.5 Labelling, safety markings
P # Product number
S # Serial number
Supply voltage
Output signal
Model Accuracy
Zero point setting Approvals
Pin assignment Coded manufacture date
Measuring range
Symbols
Before mounting and commissioning the instrument, ensure you read the operating
instructions!
Instruments bearing this mark comply with the relevant European directives.
FM, Factory Mutual
The instrument was inspected and certied by FM Approvals.
Instruments bearing this mark comply with the applicable US standards on safety
(including explosion protection).
Made in Germany
WIKA Alexander Wiegand SE & Co. KG 63911 Klingenberg
10 WIKA operating instructions Ultra High Purity transducer, model WUD-2x
11611057.05 08/2021 EN/DE
EN
3. Safety
3.6 Ex marking
DANGER!
Danger to life due to loss of explosion protection
Non-observance of these instructions and their contents may result in the loss of explosion
protection.
▶Observe the safety instructions in this chapter and further explosionprotective instruc-
tions in these operating instructions.
▶Observe the information given in the applicable type examination certificate and the
relevant country-specific regulations for installation and use in hazardous areas (e.g.
IEC 60079-14, NEC, CEC).
Check whether the classification is suitable for the application. Observe the relevant national regulations.
NI CL I DIV 2 Grp A, B, C, D
Marking Designation Significance
NI Non-incendive Non-incendive
CL I Class 1 Explosive gases, vapours
DIV 2 Divison 2 Temporarily hazardous
Grp A, B, C, D Explosion groups A, B, C, D All gases and vapours
Temperature class Maximum permissible ambient temperature
T4 -10 ... +60 °C [14 ... 140 °F]
T5 -10 ... +60 °C [14 ... 140 °F]
T6 -10 ... +40 °C [14 ... 104 °F]
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