629系列 液用差壓變送器-德威爾Dwyer
629系列 液用差壓變送器監(jiān)測氣體或液體的差壓，精度為0.5%，在設計上采用了兩個壓力傳感器來測量差壓，輸出二線制的4-20mA。尺寸小的內(nèi)部空間減少了移動部件范圍，使得響應時間更短，可靠性更高。打開上蓋就能很容易接線，調(diào)整零點和量程。629系列差壓變送器達到NEMA 4X (IP66) 防護標準。
Service: Compatible gases and liquids.
Wetted Materials: Without valve: 316, 316L SS. Additional wetted parts with 3-way valve option: Buna-N, silicone grease, PTFE, brass 360, copper, reinforced acetal copolymer.
Accuracy: ±0.5% F.S. (includes linearity, hysteresis, and repeatability).
Temperature Limits: 0 to 200°F (-18 to 93°C).
Compensated Temperature Limits: 0 to 175°F (-18 to 79°C).
Pressure Limits: See Ordering page.
Thermal Effect: 0.02%/°F (0.036%/°C) includes zero and span.
Power Requirements: 13 to 30 VDC.
Output Signal: 4 to 20 mA. Optional 0 to 5 or 0 to 10 VDC.
Response Time: 50 ms.
Loop Resistance: 0 to 1300 Ω maximum for current output. For voltage outputs, minimum load resistance: 2000 Ω.
Electrical Connections: Terminal block; 1/2" female NPT conduit.
Process Connection: 1/4" female NPT.
Enclosure Rating: Designed to meet NEMA 4X (IP66).
Mounting Orientation: Mount in any position.
Weight: 10.1 oz (286 g).
Agency Approvals: CE.
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