The PD650 Large
Display Universal Process Meter features 2.3" high digits housed in a
rugged die cast aluminum NEMA 4X enclosure. The PD650 accepts the common
process signals such as 4-20 mA, 0-5 VDC, and 0-10 VDC. It has all the
features of the PD690 as well as a few new ones: dual 24 volt isolated
power supplies for both the input and output loops and built-in relay
suppression for more consistent relay operation. The PD650 can also
function as a flow rate/totalizer, operating like our PD692. Features
include: alternating rate/total display, programmable time base of second,
minute, hour or day, automatic total reset, square root extraction, and
many more. The PD650 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.