概 述
LFM52系列微差壓變送器是我司新推出的一款差壓變送器，既有多量程傳感器的靈活性，又有單量程傳感器的高性能，是工業應用的理想產品。該差壓變送器內置多種可選的壓力范圍和單位選擇，通過內置的撥碼開關可以方便的進行現場調整，采用IP65防護等級的外殼，并配備便于布線的不銹鋼導管接頭，適用于暖通空調（HVAC）、能源管理系統、VAV及風扇控制、環境污染控制、靜態管路和潔凈室壓力、煙霧罩控制、烘箱增壓及爐通風控制等領域。
技術參數
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測量介質
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空氣或者中性氣體
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壓力量程
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±100Pa, ±1000Pa,±10000Pa
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允許過壓
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5KPa(LFM526);10KPa(LFM520);80KPa(LFM522);
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精度
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±1%F.S
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工作溫度
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-20℃~70℃
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補償溫度
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-10℃~60℃
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存儲溫度
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-40℃~70℃
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響應時間
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0.5s(默認)/1.0s/2s/4s
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防護等級
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IP65
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壓力接口
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金屬倒刺接口，φ6.2mm
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電氣連接
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二線制
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三線制
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四線制
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六線制
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輸出信號
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4～20mA(無背光)
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0～5VDC/0～10VDC
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RS-485
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4～20mA&0～10VDC
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供電電源
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12～30 VDC
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12～30VDC/24VAC±20%
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9～30 VDC
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12～30VDC/24VAC±20%
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功耗
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≤1.5W
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外殼材質
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UL94-V0/PC
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通訊
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RS-485標準接口，Modbus RTU協議
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認證項目
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ROHS認證，歐盟CE認證
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電磁兼容性
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EN 61326-1
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顯示方式
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LCD背光數字顯示
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選型說明
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代號及說明
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備注
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LFM52
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微差壓變送器
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型號
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6
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-100～100pa
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量程范圍
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0
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-1000～1000Pa
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2
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-10000～10000Pa
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N
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無顯示屏
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是否帶顯示
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O
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有顯示屏
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A
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4～20mA和0～10V(同時輸出
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輸出類型
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B
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4～20mA(兩線制)(無背光)
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C
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0～10V(三線制)
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D
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0~5V(三線制)
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E
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RS-485通訊
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E1
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RS-485通訊(帶隔離)
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C
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±1.0%FS
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精度等級
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LFM52 6 O B C
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選型舉例
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