A Quick Overview For You; Signs, Symbols And Abbreviations - WIKA WU-20 Mode D'emploi

1. Important details for your information / ... / 3. Signs and symbols
Certificate for transducer with FM-marking:
Transducer for operation in hazardous areas in compliance with the respective certificate (see control
drawing No. 11537885, page 91).
FM Approval ratings: Non-incendive for Class I Division 2 Groups A, B, C and D
Knowledge required: Install and start the transducer only if you are familiar with the relevant regulations
and directives of your country and if you have the qualification required. You have to be acquainted
with the rules and regulations on hazardous areas (if transducer with Ex-marking), measurement and
control technology and electric circuits, since this transducer is „electrical equipment" as defined by
EN 60079-14. Depending on the operating conditions of your application you have to have the corres-
ponding knowledge, e.g. of aggressive media.

2. A quick overview for you

If you want to get a quick overview, read Chapters 3, 5, 7 and 11. There you will get some short safety
instructions and important information on your product and its starting. Read these chapters in any case.

3. Signs, symbols and abbreviations

WARNING!
Potential danger of life or of severe
injuries.
WARNING!
For transducer with Ex-marking:
Instructions for hazardous areas:
Potential danger of life or of severe
injuries.
Notice, important information,
malfunction.
WIKA operating instructions, model WU-2x
WARNING!
Potential danger of life or of severe
injuries due to catapulting parts.
CAUTION!
Potential danger of burns due to hot
surfaces.
The product complies with the
applicable European directives.
EN
5