Dwyer Instruments - Series 646

Series 646

Differential Pressure Transmitter

Ranges from 0 to 0.25" w.c., Overpressure Protection to 10 psig, ±1% Accuracy


	Service: Compatible gas and air. Wetted Materials: Graphite filled nylon housing, 96% alumina ceramic sensor, silicone seal. Accuracy: Non-linearity: ±0.5% FS max.; Hysteresis and Repeatability: ±0.05% FS max. Temperature Limits: Operating: 14 to 140°F (-10 to 60°C). Pressure Limits: Line Pressure: 1 psi. Overload Pressure: High side: 5x rated pressure, Low side: 3x rated pressure. Compensated Temperature Range: 50 to 104°F (10 to 40°C). Thermal Effects: Zero Temp Effects: ±1.5% FS (>2.0" H2O); ±3.0% FS (≤2.0" H2O). Span Temp Effects: ±1.5% FS (>2.0" H2O); ±4.0% FS (≤2.0" H2O). Power Requirements: 4.75 to 8 VDC. Output Signal: 0.25 to 4.0 ±0.08 VDC @ 5.0 V supply (0.5 to 4.25 ±0.12 VDC for ±0.5" range). Response Time: 15 msec @ 63% FS step response change. Output Impedance: <100Ω; short circuit protected. Electrical Connection: Three color-coded leads, 24 AWG, 12" length. Process Connection: 1/8" or 3/16" I.D. tubing. Weight: 2.5 oz (0.07 kg).