Labelling / Safety Marks - WIKA PSA-31 Manual De Instrucciones

2. Safety

2.4 Labelling / safety marks

Product label
EN
Measuring range
P# Product No.
S# Serial No.
If the serial number becomes illegible (e.g. due to mechanical damage or overpainting), traceability will
no longer be possible.
Explanation of symbols
3-A Sanitary Standards, Inc.
®
This instrument is 3-A marked based on a third party verification for conformance to the 3-A
standard 74-06.
8
Analogue signal
WIKA operating instructions pressure switch model PSA-31 for sanitary applications
Power supply
Switching output 1 Switching output 2