* Loop powered 4-20mA input
* < 1V drop across input terminals
* Can be added to existing loop without re-certification
* Field and panel mounting versions
* Choice of case materials
* Backlight options
* Fully programmable by user
* Password protected
Use the MTL660 displays to view process variables in hazardous and safe plant areas. All versions are loop-powered from 4-20mA signals.
Applications These indicators are loop powered and the low voltage drop across the input terminals allows them to be installed in almost any 2-wire, 4-20mA loop. Alternatively, they may be used, for example, for the re-transmission of mass/flow computations from the safe area, through a suitable MTL IS interface to the indicator in the safe area. All units can indicate measurements in either a linear or square root extraction mode, the latter being used, for example, to display directly the flow from differential pressure measurements using an orifice plate, Dall tube, or venturi.
Large liquid industrial crystal displays make the process variables easily visible at a distance. Process units are configured into the display area. Instant readout of percentage or loop current is available at the push of a button.
Field mounting units are housed in a rugged aluminium IP67, NEMA 4X case. ABS and GRP options are available for highly corrosive atmospheres.
