MTL830 SERIES IS multiplexer systems
 Cuts installation and cable costs for all IS hazardous-area circuits
 Reduce the cost of installing hazardous-area cabling
 Save installation time, space and weight
 Highlight problems quickly with status reporting systems
 Protect the process with sensor-failure detection and safety drives
 Connect directly to host systems through serial-data outputs
 Switched and analogue inputs to controllers with Modbus communications
 Switched inputs and outputs to controllers with LONWORKS communications
 Redundant data highway facility

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MTL830 Series multiplexers with Modbus outputs provide a cost-effective alternative to single-loop isolation. The cost of installed wiring can be reduced by up to 50% by communicating the status of multiple hazardous-area sensors over dual-redundant data highways. Further savings can be achieved by reducing the number of inputs to the host and by reducing cabinet space and weight。

A multiplexer transmitter mounted in the hazardous area, caters for thermocouple, RTD and mV analogue inputs
A compatible safe-area receiver provides serial Modbus outputs (which mirror corresponding analogue inputs) for feeding to host PLC, PC or DCS controllers.
Dual-redundant data highways between the hazardous-area transmitter and the safe-area receiver allow the system to continue working normally with only one highway connected. The highways carry both power and data, over distances up to 2km. The highway cable may consist of a simple twisted pair or a pair of wires within an IS multi-core cable. When the multiplexer transmitter is located in the hazardous area, each data highway must be protected by an MTL3052 digital isolator。

Analogue multiplexer systems can communicate the status of up to 32 inputs, reducing the number of hazardous-area wiring pairs from 32 to two
Significant cost reductions are made by eliminating runs of expensive thermocouple compensation cable from the hazardous to the safe area. Similar savings are found when using 3- or 4-wire RTDs, as all wires of each RTD can be terminated at the transmitter or its enclosure.
System reliability is increased by providing for dual redundant highways. Failure detectors and safety drives protect against the consequences of sensor failure, while built-in systems report failures to the host controller.
Accessories and configuration tools are available, including steel and stainless-steel enclosures and earth-leakage detectors. Analogue units may be configured with a PC-based software package.