631B系列 液用差壓變送器-德威爾Dwyer
631B系列 液用差壓變送器能精確地監(jiān)測空氣，兼容的液體或氣體的差壓。輸出標準的兩線制回路的4-20mA信號。前面板帶數(shù)字按鍵，能夠容易校準零點和量程。631系列變送器的防護級別為NEMA 4X （IP66），結構牢固，耐壓500psi，并能測量差壓到0.5英寸水柱。
Service: Compatible gases & liquids.
Wetted Materials: Brass, silicone, 300 SS.
Accuracy: Transmitter Output: ±2% FS (includes linearity, hysteresis and repeatability). Gage: ±3% FS at 70°F (21.1°C).
Stability: ±1% FS/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 to 35 VDC.
Output Signal: 4 to 20 mA.
Loop Resistance: 0 to 1250 Ω 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.
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