WIKA PSA-31 - Manual (Page 8)

8 WIKA operating instructions pressure switch model PSA-31
GB
14018458.01 11/2011 GB/D/F/E
2.4 Labelling / safety marks
Product label
If the serial number becomes illegible (e.g. due to mechanical damage or overpainting), traceability will
no longer be possible.
Explanation of symbols
General danger symbol
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant European directives.
3-A Sanitary Standards, Inc.
This instrument is 3-A marked based on a third party verification for conformance to the 3-A
standard 74-03.
2. Safety
Measuring range
Power supply
Analogue signal Switching output 1 Switching output 2
P# Product No.
S# Serial No.