Special Hazards - WIKA NS100 Mode D'emploi

2. Safety

2.4 Special hazards

WARNING!
For hazardous media such as oxygen, acetylene, flamma-
ble 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.
From pressure gauges which do not correspond to a
safety version per EN 837 highly pressurised media might
leak out through the possibly bursting window in case of a
component failure.
For gaseous media and operating pressures > 25 bar a
pressure gauge with safety version S3 is recommended
per EN 837-2.
For additional important safety instructions see chapter "2.3 Safety
instructions for pressure gauges per ATEX".
WARNING!
Residual media in dismounted pressure gauges can result
in a risk to persons, the environment and equipment.
Take sufficient precautionary measures.
WIKA operating instructions pressure gauge, model 2 per ATEX
EN
9