美國FLOWLINE的該產品為通用的兩線制、非接觸式超聲波液位計，其量程能夠達到10米，可以測量各種酸和樹脂等介質，還適合測量超純的、腐蝕的泥漿或者污水，被廣泛應用到過程罐、日用罐水池等場。FLOWLINE（氟萊）超聲波液位計產品特點：
● 量程為5.5米/3米/8米/10米
● 二線制，4-20mA輸出
● 探頭材質為PVDF，耐酸堿腐蝕
● 窄聲束角為0度，支持靜管技術
● WebCal軟件標定，防護等級IP67

美國(氟萊)FLOWLINE超聲波液位計技術參數：

Range: LU27: 4” to 9.8’ (10cm to 3m), LU23: 8” to 18.0’ (20cm to 5.5m), LU28: 8” to 26.2’ (20cm to 8m), LU29: 8” to 32.8’ (20cm to 10m)

Accuracy: ± 0.2% of range

Resolution: LU27: 0.019” (0.5mm), LU23: 0.039” (1mm), LU28/29: 0.079” (2mm)

Dead band: LU27: 4” (10cm), LU23/28/29: 8” (20cm)

Beam width: LU27: 2” (5cm), LU23/28/29: 3” (7.6cm)

Configuration: WebCal? PC, Windows®, USB 2.0

Memory: Non-volatile

Supply voltage: 24 VDC (loop)

Consumption: 0.5W

Loop resist.: 500 ohms @ 24 VDC

Signal output: 4-20 mA, two-wire

Signal invert: 4-20 mA or 20-4 mA

Signal fail-safe: 4 mA, 20 mA, 21 mA, 22 mA or hold last

Process temp.: F: -4o to 140o, C: -20o to 60o

Temp. comp.: Automatic

Ambient temp.: F: -31o to 140o, C: -35o to 60o

Pressure: MWP = 30 PSI (2 bar)

Enclosure rating: Type 6P, encapsulated, corrosion resistant & submersible

Encl. material: Polycarbonate

Trans. material: PVDF

Cable jacket mat: Polyurethane

Cable type: 4-conductor, shielded

Cable length: 10’ (3m)

Process mount: LU27: 1” NPT (1” G), LU23/28/29: 2” NPT (2” G)

Mount gasket: Viton^®

Classification: General purpose

Compliance: CE, RoHS

Approvals: cFMus