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IM-ENG-116/GB
1. I
NTRODUCTION
This manual is intended to provide guidance for the installation, operation and maintenance of the Mux2700 HART
Signal Multiplexer (HSM) module. To avoid damage, failure or improper operation the contents of this manual
should be read and understood before installing and operating the instrument.
The Mux2700 HSM is a compact, plug-in module which is able to accept up to 32 HART channels and to feed them
into a single, faster communication line, which is in turn to be connected to a suitable Maintenance Workstation.
The Mux2700 module is intended for use as part of the Elcon HART Interface Solutions (H.I.S.), which provides
appropriate interconnection packages for various applications. H.I.S. makes available a wide set of Termination
Boards – with or without integrated isolators – to support different applications and to directly interface with the
main PLC/DCS equipment. The Mux2700 is simply to be inserted in the selected board to get full HART access to
the relevant field devices while preserving the traditional 4/20 mA analogue loop interfaces.
The Mux2700 use the same effective and compact enclosure of the successful HiD series, including the innovative
“Quick Lock” mechanism to easily insert/remove the unit from the Termination Board without the need for any tool.
Key features summary:
•
low power consumption , very small size;
•
compact and proven HiD enclosure, “Quick Lock” capability;
•
high noise immunity, industrial-level EMC compliance;
•
two DC-blocking capacitors – non-polarised type – on each signal loop;
•
optimal mechanical integration with other HiD solutions;
•
fully compatible with existing MUX 1700 solutions;
•
very low loop-interference risk (TUV fail-safe approval pending).
Warning !
The Mux2700 module is not certified for intrinsically safe applications and must not be used to directly interface
with hazardous-area located field devices. However, some H.I.S. solutions do allow the mounting of the Mux2700
on the same board where intrinsically safe isolators are located. In this case, the safety-related application areas
must be addressed by trained personnel which is fully acquainted with the principles of intrinsically safe system.
Elcon Instruments has published a complete tutorial entitled “Guide to Intrinsic Safety” covering most aspect of
intrinsic safety. The book can be obtained from Elcon Instruments free of charge.
