The PD656 is a
Large Display Process Meters with flow rate, totalizer batch control and
pump (with alternation) control capabilities. It accepts the common
process signals such as 4-20 mA, 0-5 VDC, 1-5 VDC and 0-10 VDC and
displays these signals in engineering units on a 0.8" high 4-1/2 digit red
LED display. The PD656 can also provide two isolated 24V power supplies to
drive both the input and output loops. Options include up to 4 relays for
alarms, pump control or batch control, as well as an isolated 4-20 mA
transmitter output. The PD656 is housed in an explosion-proof sand-cast
aluminum enclosure. An optional magnetic key is available to operate and
program the meter without having to remove the enclosure cover. The PD656
can be modified to provide up to 100 mA to drive mass flowmeters,
ultrasonic level transmitters and other devices that require more than 20
mA to drive them.
