Nanomass Gas Density
Notes on the Operating Instructions
Hauser
5
1
Notes on the Operating Instructions
1.1
Document function
These Operating Instructions contain all the information that is required in the various
phases of the life cycle of the device: from product identification, incoming acceptance and
storage, to mounting, connection, operation and commissioning through to troubleshooting,
maintenance and disposal.
1.2
Symbols used
1.2.1
Safety symbols
1.2.2
Electrical symbols
1.2.3
Symbols for certain types of information
Symbol
Meaning
A0011189-EN
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will
result in serious or fatal injury.
A0011190-EN
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in serious or fatal injury.
A0011191-EN
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can
result in minor or medium personal injury.
A0011192-EN
NOTE
This symbol contains information on procedures and other facts which do not result in
personal injury.
Symbol
Meaning
A0011197
Direct current
A terminal to which DC voltage is applied or through which direct current flows.
A0011198
Alternating current
A terminal to which alternating voltage is applied or through which alternating current
flows.
A0017381
Direct current and alternating current
• A terminal to which alternating voltage or DC voltage is applied.
• A terminal through which alternating current or direct current flows.
A0011200
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a
grounding system.
Symbol
Meaning
A0011182
Permitted
Indicates procedures, processes or actions that are permitted.
A0011183
Preferred
Indicates procedures, processes or actions that are preferred.
DANGER
WARNING
CAUTION
NOTICE