产品优势
■ 带有圆极化天线的 ANL-9081N 是用于静止管测量的优质非接触式雷达液位计。
■ 典型应用是带有浮顶的原油罐以及带有或不带浮顶的汽油/产品罐。
■ 使用独特的低损耗模式在管道中心传输雷达波,可以消除由于管道内的铁锈和产品沉积物而导致的精度降低。
■ 可在静止管中进行温度、液位测量。(多点温度探头)
■ 适合任何带有现有 150 毫米/200 毫米静止管的浮顶罐。
规格参数
*有关更多技术细节,请参见 Rex 技术说明。
ANL-9081S | Lens material PTFE | Lens material PEEK | N60 (cool version) |
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最大量程 | 40M | 40M | 40M |
盲区 | < 100mm from the flange down surface | ||
收发频率 | Tx/Rx frequency 76.2 to 80.2GHz Dynamic FM Sweep Bandwidth 1~4GHz (The adjustment FM range can be customized according to the ISM requirements of the customer’s region) |
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测量原理 | FMCW Radar System using Low Loss Mode. | ||
透镜天线材质 | PTFE Φ100mm | PEEK Φ100mm | PEEK Φ100mm |
天线波束角 / 增益 | Beam angle 3.5°/ Gain 31.51dB | Beam angle 3.5°/ Gain 31.4dB | |
旁通管尺寸 | 150mm, or 200mm | ||
测量精度 | ±1mm (<15m range)、±2mm (>15m) | ||
环境温度范围 | -40 … +85 °C (Operating ambient temperature) | -60 … +105 °C | |
过程温度范围 | -40°C … +200°C | -60°C … +200°C | |
过程压力范围 | -0.2 ~ +0.5MPa | -1.0 ~ +3.5MPa | |
安装连接 | Flanges ≥DN100 | ||
信号输出规格 | 4-20 mA/HART7 2-wire, 4-20 mA/HART7 4-wire, Profibus PA / DP, Ethernet-APL, Modbus protocol 4-wire | ||
影响测量精度的变量因素 |
Specifications for the digital measured value: Temperature drift - Digital output: ±1mm/10K relating to the max. measuring range or max. 15 mm Additional deviation through electromagnetic interference acc. to EN-61326: < ±10 mm Specifications apply also to the current output Temperature drift - Current output: ±0.01%/10K relating to the 16.7 mA span or max. ±0.15% Deviation in the current output due to digital/analogue conversion Non-Ex and Ex-ia version: < ±1μA; Ex-d-ia version: < ±1μA Additional deviation through electromagnetic interference acc. to EN-61326: < ±150μA |
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现场指示器/调试方式 |
1. 160x80 LCD FSTN RGB backlight monitor adapter with keyboard module, operation Temp. -20°C … 70°C. or 128x64 OLED monitor adapter with keyboard module, operation Temp. -55°C … 80°C. (option) or 230x240 LCD TFT colors monitor adapter with keyboard module, operation Temp. -20°C … 70°C. (option only for 4-wrie system) 2. (APP) Radar MobileManager via BT wireless connection 3. (PC software) Radar PCManager /or Via a PC with PACTware/DTM (an interface converter AiW-305 USB CONNECT is required) |
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适用供电电源 | 16V ~ 40 VDC / Load resistor > 600Ω | ||
无线通信规范 | Bluetooth 5.0 (Bluetooth 4.0 LE compatible), communication range 40m, in rainy day 20m | ||
认证证书 | Ex ia IIC T6 Ga IP67; Ex d IIC T6 Gb IP67 | ||
产品外壳规格 | Single chamber / Double chamber, Aluminum / Stainless steel / Plastic PBT, IP66 / IP67 / IP68 | ||
推荐应用工况 | liquids, still pipes and chambers applications It is also the preferred technology for applications with heavy deposition or very sticky and viscous fluids or where ball valves |
静止管道和腔室中使用雷达液位变送器
静止管道和腔室(旁路腔室、套管、侧管、旁路管道)在许多应用以及许多不同类型的储罐和容器中使用。雷达变送器可用于这些装置中,但在管道中的功能与在普通容器装置中的不同。虽然过程雷达通常可以安装在静止管道中以测量液位,通过管道直径数据对速度数据进行校正,以使雷达波传播,但所有过程雷达,无论其品牌或类型如何,都设计为在自由传播过程中发挥最佳性能。
安装在蒸馏管中,过程雷达的精度可能会因微波通过蒸馏管的传播而受到影响。当雷达变送器在金属管道中使用时,微波信号被定向并包含在管道内。雷达回波信号变得更强,这对于低介电或湍流应用是一个优势,尤其是在更长的距离上。为了在静止管道中获得最高精度,我们开发了带有独特圆极化天线的 ANL-9081 雷达液位变送器,利用专用于静止管道的低损耗微波模式。
圆极化天线和低损耗微波模式
当在管道内部使用雷达液位变送器时,会产生多种微波模式,并且每种模式都具有独特的传播速度。产生的微波模式数量随雷达信号的频率和管道直径而变化。这种低损耗微波模式实际上消除了由于管道内部的铁锈和产品沉积物而导致的精度降低。
性能与测量范围
ANL9081S 雷达液位变送器固件包含管道测量模式,当开启此模式时,变送器将针对静止管道测量进行优化。动态增益曲线将适配管道,并且管道中雷达信号的较低传播速度将得到补偿。
以下图表反映了在管道安装中使用不同雷达设备时的预期性能。
NOTE:
1. Accurate pipe diameter required for a proper level calculation.
2. Build-up or deposits inside the pipe may decrease the performance.
3. If the pipe inner diameter deviates, a scale factor error will appear for measurements in long pipes.
4. The ANL-9081S accuracy shown in up figure, it applies to antenna sizes matching the pipe diameter.
For best accuracy it’s recommended to perform a two-point offset measurement:
1. Measure with a high level in the tank. Match the measured level value to a reference measurement and adjust the Calibration Offset parameter.
2. Measure with a low level in the tank. Match the measured level value to a reference measurement and adjust the Pipe Inner Diameter parameter.
Product Dimensions
远程控制器兼指示器的适配器
Remote indicator with HART compatible (RDM-25)
Remote indicator via Serial communication (LRD-21)
蓝牙远程指示器
ANL9080 雷达液位变送器(具有蓝牙功能)可以通过蓝牙无线系统连接到手机。手机需要安装 RadarMobileManager 应用程序。这是一款免费注册的应用程序(安卓和 IOS 等)软件,可以直接在各大应用商店下载安装,或者请联系相关产品供应商。
Indication/Adjustment LOI Adapter