DWYER 631B Series, WET/ WET DIFFERENTIAL PRESSURE TRANSMITTER

Ranges Down to 0.5 " w.c. with 500 psi Static Pressure Rating The Dwyer Series 631B Capsuhelic® Differential Pressure Transmitter monitors differential pressure of air and compatible gases and liquids with accuracy. The design employs converting pressure changes into a standard 4-20 mA output signal for two wire circuits. Digital push-button, zero and span adjustments are easily accessed on the front cover. The Series 631 Differential Pressure Transmitter is designed to meet NEMA 4X ( IP66) construction. Robust housing offers 500 psi static pressure rating on ranges down to 0.5 " w.c. Spesifications : Service: Compatible gases & liquids. Wetted Materials: Brass, silicone, 300 SS. Accuracy: Transmitter Output: ± 2% F.S. ( includes linearity, hysteresis and repeatability) . Gage: ± 3% of full scale at 70° F ( 21.1° C) . Stability: ± 1% F.S./ yr. Temperature Limits: 20 to 120° F. ( -6.67 to 48.9° C) . Pressure Limits: -20 " Hg to 500 psig ( 0.677 to 34.4 bar) . Thermal Effect: 0.025% / ° F ( 0.045% / ° C) includes zero & span. Power Requirements: 10-35 VDC. Output Signal: 4 to 20 mA. Loop Resistance: 0-1250 ohms maximum. Electrical Connections: M-12 circular 4 pin connector. Process Connections: 1/ 4 " female NPT high and low pressure taps, duplicated - one pair top for air and gas, and one pair bottom for liquids. Enclosure Rating: Designed to meet NEMA 4X ( IP66) . Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations. Weight: 8 lb 4 oz ( 3.74 kg) . Agency Approvals: CE.