Notes on the operating instructions
Part 1 – Operating Instructions
Rev. 6.4 dated 2022-02
Software Released Version: 1
(Eco)RO Dia II
Part 1 • Chap
ter
Signs and symbols used
General
Electrical symbols
CAUTION
This symbol is to be found on specific parts of the system and indicates that the valid
operating instructions must be observed.
This symbol is to be found next to all the safety instructions where there is a risk of injury
or health hazard.
These instructions are to be carefully observed and the appropriate care taken! At the same
time, the valid legislation as well as the generally valid safety and accident prevention
regulations must be observed.
IMPORTANT This symbol indicates procedures which must be followed to ensure that regulations and
process flows are correctly followed and prevent damage to the equipment.
NOTE
This symbol indicates advice or specifications given for the economical use of the system
or draws attention to a more simple working step.
→
This indicates a cross-reference to a chapter within these operating instructions.
Observe the operating instructions
Caution, hot surface
Protective ground terminal
Ground connection
Three-phase alternating current with neutral conductor
Caution, observe ACCOMPANYING DOCUMENTS
OFF (power supply, disconnect from mains supply)
ON (power supply, connect with mains supply)
Dangerous electrical current
