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Honeywell 2MLL-PSRA User Manual Page 29

Pnet i/f module.
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Installation environment
The 2MLL-PSRA 2MLL-PSEA modules have high reliability regardless of their
installation environment. The following factors ensure the system reliability and stability.
Environmental prerequisites
Avoid installing the module in places where it is subjected or exposed to:
Water leakage and dust.
Continuous shocks or vibrations.
Direct sunlight.
Dew condensation due to rapid temperature change.
Temperature outside the range of 0 to 55°C.
Relative humidity outside the range of 5 ~ 95%.
Corrosive gas or combustible gas.
Installation guidelines
Ensure that no external materials like wire scraps enter the upper part of the
PLC during drilling or wiring.
Ensure to install PLC in a location where it is easy for monitoring and use.
Ensure that PLC is not located on the same panel where high voltage equipment
is located.
Ensure that the distance from the walls of duct to external equipment is 50mm
or more.
Ensure that the PLC is properly grounded to the locations that have good
ambient noise immunity.
Pnet I/F Module 2MLL-PSRA, 2MLL-PSEA User's Guide
November 2011
3. Installation and wiring


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