WWDP系列 液用差壓變送器-德威爾Dwyer
WWDP系列 液用差壓變送器雖然只有三種型號，但每種型號都有三十種可現場選擇的功能。WWDP系列能現場選擇單向量程或雙向正負量程，可選0-5, 1-5, 0-10VDC, 和4-20 mA的輸出信號，還帶有自動校準零點的功能。現場可選擇高低壓壓力接口的功能對于現場安裝方向錯誤可無須重新安裝。可選的LCD顯示用于現場指示并同時輸出信號。鑄鋁外殼的防護等級為NEMA 4 (IP66)。這些功能使得WWDP差壓變送器廣泛地用于監測氣體，液體流量，過濾器壓力降，有壓容器中的液位，等等能量管理系統中或過程控制系統中。
Service: Gases or liquids compatible with 17-4 PH stainless steel.
Accuracy: All pressure ranges have ±1% full scale accuracy except the lowest selectable range of each unit is ±2% full scale.
Stability: ±0.5% per year.
Temperature Limits: Compensated temperature range: 32 to 130°F (0 to 54°C); Operating temperature range: -4 to 185°F (-20 to 85°C).
Pressure Limits: Max working pressure: WWDP-1: 50 psi; WWDP-2: 100 psi; WWDP-3: 250 psi; Proof pressure: 2.2X of full scale; Burst pressure: 40X of full scale.
Thermal Effect: 2% FS/100°F (50°C) includes zero and span.
Power Requirements: 12 to 30 VDC/18 to 28 VAC (Reverse Excitation Protected). NOTE: 4 to 20 mA output cannot be powered with AC voltage.
Output Signal: Selectable 0 to 5, 0 to 10 and 1 tp 5 VDC; 4 to 20 mA.
Zero & Span: Digital "re" zero button (should be used when changing ranges). Span can be adjusted by changing between field selectable ranges.
Response Time: 1 to 5 sec (selectable).
Loop Resistance: 1000 Ω.
Current Consumption: VDC power: 0 to 5, 1 to 5 VDC output 4 mA (typ); 0 to 10 VDC output 5 mA (typ); 4 to 20 mA output 20 mA max. Current consumption will equal the transmitter output in current mode. VAC power: 0 to 5, 1 to 5, 0 to 10 VDC output 40 mA (typ).
Electrical Connections: 1/2" conduit.
Process Connections: 1/8" female NPT internal.
Enclosure Rating: Designed to meet NEMA 4 (IP66).
Mounting Orientation: Vertical; mount the pressure ports down (keeps debris from building up inside the pressure port).
Weight: 1.5 lb (680.4 g).
Agency Approvals: CE.
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[VIP第7年] 指數:6
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