The MTL4840 HART connection system from Extech Safety Systems provides simple connection to field instrument loops. The backplanes and connection units offer the benefits of being able to connect up to 7936 loops to a single PC communications port. Scan lists are easily configurable, and there is LED indication of the loop being scanned.
Up to sixteen, 16-channel field connection units, or IS backplanes, may be connected to a single MTL4841 HART communications module node. This 16-channel modularity provides a compact, easily configurable and expandable HART system. Other options available include a connection unit with HART filters, for use with I/O cards that may interfere with HART signals.
Other hardware offered includes isolators and barriers, for connection to instruments in hazardous areas. The diagram gives a clear picture of where MTL products may be used effectively in a system.
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