General Information; Design And Function - WIKA TR31-3 Mode D'emploi

1. General information / 2. Design and function

1. General information

The resistance thermometer described in the operating instructions
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EN
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
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handling the instrument. Working safely requires that all safety
instructions and work instructions are observed.
Observe the relevant local accident prevention regulations and
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general safety regulations for the instrument's range of use.
Skilled personnel must have carefully read and understood the
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operating instructions prior to beginning any work.
Subject to technical modifications.
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Further information:
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- Internet address:
- Relevant data sheet:
- Application consultant:

2. Design and function

2.1 Description
The model TR31 resistance thermometer consists of a thermowell with
a fixed process connection and is screwed directly into the process.
It is designed to be impact and vibration resistant and all electrical
components are protected against humidity (IP67 or IP69K). The
vibration resistance conforms to IEC 60751 (20 g, dependent on the
instrument version). The impact resistance of all versions meets the
requirements of IEC 60751.
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www.wika.de / www.wika.com
TE 60.31
Tel.: +49 9372 132-0
Fax: +49 9372 132-406
info@wika.de
WIKA operating instructions models TR31-3, TR31-K