Dwyer 美國(guó)德威爾

WWDP系列液用差壓變送器 dwyer 德威爾

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美國(guó)德威爾壓差表流量計(jì) 差壓計(jì) 差壓開(kāi)關(guān) 差壓變送器
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產(chǎn)品描述：美國(guó)Dwyer德威爾儀器儀表制造有限公司(Dwyer Instruments,Inc.)是一家對(duì)差壓、溫度、液位和流量的測(cè)量,變送和控制等方面擁有眾多精密儀器儀表產(chǎn)品并且在價(jià)格上有強(qiáng)競(jìng)爭(zhēng)力的儀器儀表制造公司。
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WWDP系列液用差壓變送器
產(chǎn)品說(shuō)明：
可選量程范圍，可選輸出信號(hào)
WWDP系列液用差壓變送器雖然只有三種型號(hào)，但每種型號(hào)都有三十種可現(xiàn)場(chǎng)選擇的功能。WWDP系列能現(xiàn)場(chǎng)選擇單向量程或雙向正負(fù)量程，可選0-5, 1-5, 0-10VDC, 和4-20 mA的輸出信號(hào)，還帶有自動(dòng)校準(zhǔn)零點(diǎn)的功能。現(xiàn)場(chǎng)可選擇高低壓壓力接口的功能對(duì)于現(xiàn)場(chǎng)安裝方向錯(cuò)誤可無(wú)須重新安裝。可選的LCD顯示用于現(xiàn)場(chǎng)指示并同時(shí)輸出信號(hào)。鑄鋁外殼的防護(hù)等級(jí)為NEMA 4 (IP66)。這些功能使得WWDP差壓變送器廣泛地用于監(jiān)測(cè)氣體，液體流量，過(guò)濾器壓力降，有壓容器中的液位，等等能量管理系統(tǒng)中或過(guò)程控制系統(tǒng)中。
產(chǎn)品規(guī)格：
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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