美国FLOWLINE公司2005年新推出的超声波液位计,表头带LCD显示,显示空间高度和实际液位高,二线制,提供了大量程到10米的非接触测量方式。以下是EchoSpan LU81/83/84 超声波液位计的特点:
□ 量程3米/5.5米/8米/10米
□ 二线制,4~20mA输出
□ 探头材质PVDF,耐酸碱腐蚀
□ 窄声束角0度,支持静管技术
□ LCD液晶显示,按钮标定
FLOWLINE超声波液位计的技术参数:
量程: LU80 (10cm-3m)
LU81:(20cm—5.5m)
LU83:(20cm—8m)
LU84:(30cm—10m)
精度: 量程±0.2%
分辨率:LU80:0.5cm,LU81/LU83: 10cm LU84:30cm
声束宽度:LU80:5cm,LU81/LU83/LU84:7.6cm
死区:LU80:10cm,LU81/LU83:20cm,LU84:30cm
显示单位: 厘米,英寸,百分比
供电电压:12-28vdc
环绕阻抗:600oΩ@24vdc
信号输出:4~20 mA,可以反向
标定:按钮标定或者实际标定
失效诊断:4 mA,20 mA,21 mA,22mA,或者保持当时数据
过程温度:-20℃ 至 60℃
电子芯片温度:-40℃ 至71℃
压力:2bar
防护等级:NEMA 4X (IP65)
外壳接口:防水膜
外壳材料:PC/ABS FR
探头材料: PVDF Kynar
过程连接:LU80 1"NPT(G)
LU81/LU83/LU84 2"NPT(2"G)螺纹
电气接口: 双孔 1/2"NPT
CE认证:EN61326EMC
Range: LU80: 4” to 9.8’ (10cm to 3m), LU81: 8” to 18.0’ (20cm to 5.5m), LU83: 8” to 26.2’ (20cm to 8m), LU84: 12” to 32.8’ (30cm to 10m)
Accuracy: ± 0.2% of range
Resolution: LU80: 0.019” (0.5mm), LU81/83: 0.039” (1mm), LU84: 0.078” (2mm)
Dead band: LU80: 4” (10cm), LU81/83: 8” (20cm), LU84: 12” (30cm)
Beam width: LU80: 2” (5cm), LU81/83/84: 3” (7.6cm)
Configuration: Push button
Memory: Non-volatile
Display type: LCD, 6-digit
Display units: Inch, cm and percent
Supply voltage: 12-28 VDC
Loop resist.: 500 Ohms @ 24 VDC
Signal output: 4-20 mA, two-wire
Signal invert: 4-20 mA, 20-4 mA
Signal fail-safe: 4mA, 20mA, 21mA, 22mA or hold last
Process temp.: F: -7° to 140°, C: -20° to 60°
Temp. comp.: Automatic
Ambient temp.: F: -40° to 160°, C: -40° to 71°
Pressure: MWP = 30 psi (2 bar)
Enclosure rating: NEMA 4X (IP65)
Encl. material: Polycarbonate
Encl. hardware: Brass & stainless
Enclosure vent: Water tight membrane
Conduit entrance: Dual, 1/2” NPT
Trans. material: PVDF
Process mount: LU80: 1” NPT (1” G), LU81/83/84: 2” NPT (2” G)
Mount gasket: Viton®
Classification: General purpose
Compliance: CE, RoHS
P/N | DESCRIPTION |
---|---|
LU80-5101 | 3m (9.8′) range, 1″ NPT |
LU80-5161 | 3m (9.8′) range, 1″ G |
LU81-5101 | 5.5m (18.0′) range, 2″ NPT |
LU81-5161 | 5.5m (18.0′) range, 2″ G |
LU83-5101 | 8m (26.2′) range, 2″ NPT |
LU83-5161 | 8m (26.2′) range, 2″ G |
LU84-5101 | 10m (32.8′) range, 2″ NPT |
LU84-5161 | 10m (32.8′) range, 2″ G |