636D系列 防爆差壓變送器-德威爾Dwyer
636D系列 防爆差壓變送器能用于監測液體，氣體和蒸汽的差壓。精度為0.5%，4-20mA的標準輸出信號，可選1-5VDC輸出。NEMA 4 防護級別的外殼，全316不銹鋼的材質能夠用于惡劣的場合，可兼容絕大多數介質。它為CSA認證的防爆級別能用于危險場合，還達到美國腐蝕工程師協會的標準能用于海上設施。
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).
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