Taco DPS sensors monitor the differential pressure in a hydronic HVAC system. As the system operates and sees an increase or decrease in demand, these sensors relay the system pressure changes back to the building management system or VFD to modulate pump speed. Taco offers two models: the DPS629 Differential Pressure Transmitter, designed to meet NEMA 4X (IP66) construction, and the DPS3100D Smart Pressure Transmitter, with a 100:1 turn downrange that allows the smart transmitter to be configured to fit any application.
DPS629 Differential Pressure Transmitter
±0.5% F.S. (includes linearity, hysteresis and repeatability).
0 to 200°F (-18 to 93°C).
Compensated Temperature Limits:
0 to 175°F (-18 to 79°C).
0 - 25 PSI with an over pressure limit of 250PSI.
0.02%/°F (0.036%/°C) includes zero & span.
13-30 VDC (2-wire).
4 to 20 mA. Optional 0-5, 0-10 VDC
DPS3100D Smart Pressure Transmitter
±0.075% FS (@ 20°C)
100:1 turn down
Process— -40 to 248°F (-40 to 120°C) Ambient - without LCD -40 to 185°F (-40 to 85°C) - with LCD -22 to 176°F (-30 to 80°C)
Max pressure range— -14.5 to 2000 psi Burst pressure - 10000 psi
11.9 to 45 VDC
4 to 20 mA