4
WIKA Operating instructions/Betriebsanleitung, WU-2X
11553678.05 EN/DE 02/2019
WARNING!
Potential danger of life or of severe
injuries.
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 24).
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 techno-
logy and electric circuits. Depending on the operating conditions of your application you have to have the
corresponding 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
EN
WARNING!
For transducer with Ex-marking:
Instructions for hazardous areas:
Potential danger of life or of severe
injuries.
WARNING!
Potential danger of life or of severe
injuries due to catapulting parts.
CAUTION!
Potential danger of burns due to hot
surfaces.
Notice, important information,
malfunction.
The product complies with the
applicable European directives.