The Loop Leader+ loop-powered large display meters
can be installed virtually anywhere to provide convenient
and informative display of any 4-20 mA signal. One of
the most convenient features of these instruments is their
large, dual line display. The 2.8" 5-digit top display is used
to display the process variable while the 1.5" 8-character
alphanumeric bottom display can be used to display the
units of measure or a tag. Feet and inches models display
level in feet and inches on the top display while the 8-digit
alphanumeric bottom line may be used to display a tag or
Further enhancing the display on these instruments is a
20-segment bargraph that also includes a numeric value of
the percentage the bargraph represents.
Free, PC-based, MeterView XL software that connects
to the meter via a micro USB cable is available for
programming and setup of the meters.
The PD4 is available in two configurations: Display only
and with two solid-state relays and 4-20 mA analog output.
All models come equipped with two open collector outputs
and remote contacts. The open collector outputs are
useful for alarm indication. The remote contacts can be
used to remotely operate the four programming buttons, to
acknowledge the relays, to start/stop a timer/stopwatch, and
more. The relays can be programmed for alarm indication,
on/off control, or pump alternation.
Finally, there are intrinsically safe versions of these
instruments that can be installed in hazardous areas.