Dwyer Instruments - Series 636D

Series 636D

Fixed Range Differential Pressure Transmitter

Explosion-proof, 0.5% Accuracy


	Service: Compatible gases, liquids or vapors. Wetted Materials: Types 316L SS. Accuracy: BFSL: ±0.5% F.S. (includes linearity, hysteresis & repeatability). Stability: ±1.0% F.S./yr. Pressure Limits: 3 x full scale differential pressure; burst: 2500 psig. Temperature Limits: Ambient Operating: -40 to 140°F (-40 to 60°C); Process Interface: -40 to 212°F (-40 to 100°C); Storage: -40 to 212°F (-40 to 100°C). Compensated Temperature Range: -20 to 160°F (-29 to 71°C). Thermal Effect: ±2% F.S./50°F (reference to 77°F). Power Requirements: 12-30 VDC for 4-20 mA outputs; 8-14 VDC for 1-5 VDC outputs, both with reverse polarity protection. Output Signal: 4 to 20 mA DC or 1-5 VDC. Zero and Span Adjustments: Fixed. Response Time: 20 ms. Loop Resistance: 900 ohms max. @ 30 VDC for current outputs. For voltage outputs, minimum lead resistance 50k ohms. Current Consumption: 4-20 mA for current output models; 3 mA for voltage output models. Electrical Connections: 2 ft, 22 AWG cable; 3/4" female NPT conduit. Process Connection: Two 1/2" female NPT. Enclosure Rating: NEMA 4 (IP65). Mounting Orientation: ±0.05 psi/90° rotation from horizontal. Weight: 1.8 lb (0.82 kg). Agency Approvals: CSA approved explosion-proof for Class I, Division 1, Groups B, C and D; Class II, Groups E, F, and G; Class III.