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Use
the MTL660 to display process variables in
hazardous and safe plant areas. All versions are loop-powered
from 4–20mA signals.
Applications
These indicators are generally signal powered and the low
voltae drop across the inmput 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 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. An ABS
option is available for highly corrosive atmospheres.
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