616W系列 微差壓變送器-德威爾Dwyer
616W系列 微差壓變送器能夠測(cè)量正壓，負(fù)壓和差壓，精度為0.25%。它采用聚碳酸酯外殼，NEMA 4X（IP66）的防護(hù)，用于監(jiān)測(cè)空氣或其它兼容氣體，輸出4-20mA。
兩線制的設(shè)計(jì)，多種量程范圍可以選擇，工廠會(huì)在出廠前校準(zhǔn)。量程和零點(diǎn)可在校準(zhǔn)時(shí)調(diào)整，但它不能大幅度改變量程。可選LCD數(shù)顯用于現(xiàn)場(chǎng)顯示（如果不需要LCD顯示，去掉后面的后綴）。
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±0.25% FS @ 77°F (25°C), display accuracy ±0.5%.
Stability: ±1% FS/yr.
Temperature Limits: 14 to 185°F (-10 to 85°C).
Pressure Limits: See Model chart on catalog page.
Power Requirements: 10 to 35 VDC (2-wire), 17 to 36 VDC, or isolated 21.6 to 33 VAC (3-wire).
Output Signal: 4 to 20 mA (2-wire), 0 to 5 VDC, or 0 to 10 VDC (3-wire).
Zero and Span Adjustments: Push buttons.
Loop Resistance: Current output: 0 to 1250 Ω max; Voltage output: Load resistance 1 kΩ (min).
Current Consumption: 40 mA (max).
Electrical Connections: 3-wire removable European style terminal block for 16 to 26 AWG.
Process Connections: Barbed, dual size to fit 1/8" and 3/16" (3.12 and 4.76 mm) ID rubber or vinyl tubing.
Enclosure Rating: NEMA 4X (IP66).
Mounting Orientation: Any orientation.
Weight: Without LCD 8.8 oz (249 g); with LCD 9.6 oz (272 g).
Agency Approvals: CE.
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