12 Important Notes
WAGO-I/O-SYSTEM 750
753-649 M-Bus Master Module
Manual
Version 1.1.2
Use SELV power source only!
The fieldbus coupler/controller must only be powered from a SELV (Safety Extra
Low Voltage) power source.
Replace defective or damaged devices!
Replace defective or damaged device/module (e.g., in the event of deformed
contacts).
Protect the components against materials having seeping and insulating
properties!
The components are not resistant to materials having seeping and insulating
properties such as: aerosols, silicones and triglycerides (found in some hand
creams). If you cannot exclude that such materials will appear in the component
environment, then install the components in an enclosure being resistant to the
above-mentioned materials. Clean tools and materials are imperative for
handling devices/modules.
Clean only with permitted materials!
Clean housing and soiled contacts with propanol.
Do not use any contact spray!
Do not use any contact spray. The spray may impair contact area functionality in
connection with contamination.
Avoid reverse polarity!
Avoid reverse polarity of the power supply lines, as this may damage the devices
involved.