WIKA TR21 Operating Instructions Manual page 7

2. Safety
2.3 Special hazards
WARNING!
For hazardous media such as oxygen, acetylene, flammable or toxic gases or
liquids, and refrigeration plants, compressors, etc., in addition to all standard
regulations, the appropriate existing codes or regulations must also be
followed.
WARNING!
Residual media in dismounted instruments can result in a risk to persons, the
environment and equipment.
Take sufficient precautionary measures.
Do not use this instrument in safety or emergency stop devices. Incorrect use
of the instrument can result in injury.
Should a failure occur, aggressive media with extremely high temperature and
under high pressure or vacuum may be present at the instrument.
2.4 Labelling, safety marking
Product labels (examples)
With transmitter and 4 ... 20 mA
■
output signal
Model

Date of manufacture (Year-Month)

WIKA operating instructions model TR21
With direct sensor output with Pt100
■
and Pt1000


EN


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