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德国E+H FMR51系列 物位计原理
更新时间：2015-08-04 点击次数：1166次
E+H雷达测量行程时间原理
Micropilot FMR51适用于zui高要求的液位测量的标准传感器 Endress+Hauser Endress+Hauser
Micropilot FMR51适用于工况下的液位测量, 例如石油天然气和化工等行业的高温、高压场合。Micropilot FMR51的传感器表面采用了创新的设计，保持zui稳定的测量值。Micropilot 用于液体、浆料和泥浆的连续性、非接触式的物位测量。测量不受介质变化、温度变化、气相介质或蒸汽的影响。
E+HFMR51物位计优势
硬件和软件开发过程符合IEC 61508标准，单台仪表满足SIL2， 同构冗余条件下达SIL3
HistoROM集成数据存储单元，帮助快速调试、维修和诊断
测量可靠性高，基于多回波追踪计算，即使仓内存在障碍物依然能够准确测量
无缝集成到控制或设备管理系统
直观的菜单引导式操作（在线或通过控制系统）
通过世界的SIL和WHG实验认证，节约您的时间和经济成本
基于双陶瓷耦合与气密引线设计，安全性非常高
E+HFMR51物位计应用领域
喇叭状探头，可胜任工况下的物位测量。
过程连接：1 " 螺纹, 卡箍连接或法兰
温度范围：-196 至 +450°C (-321 至 + 842°F)
压力范围： -1 至 +160bar (-14.5 至 +2,320psi)
zui大测量范围：40m (131ft), 动态响应70m (230ft)
精度误差：±2mm
K波段：26GHz
防爆认证, 5-point线性协议, WHG, 造船资质认证, 气密引线
E+HFMR51物位计技术信息
| 测量原理 | Level radar | |
| Characteristic / Application | Premium device for continuous non-contact level measurement of liquids, pastes and slurries even under extreme process conditions; Horn antenna: 40...100 mm | |
| Interface measurement | ||
| Supply / Communication | 2-wire (HART / PROFIBUS PA/ FOUNDATION Fieldbus) 4-wire (HART) | |
| Frequency | K-band (~26 GHz) | |
| Accuracy | +/- 2 mm (0.08 in) | |
| Long term stability | ||
| Linearity error for conductive liquids | ||
| Ambient temperature | -40...+80 °C (-40...+176 °F) | |
| Process temperature | -196...+450 °C (-321...+842 °F) | |
| Process pressure absolute / max. overpressure limit | Vacuum...160 bar (Vacuum...2320 psi) | |
| Pressure measuring range | ||
| Main wetted parts | 316L, Alloy C, PTFE, ceramic | |
| Process connection | Thread: MNPT 1 1/2, R 1 1/2 Flange: DN50...DN150, ASME 2"...6", JIS 10K, 63K | |
| Process connection hygienic | Tri-Clamp ISO2852 | |
| Blocking distance | ||
| Sensor length | ||
| Max. measurement distance | Standard: 40 m (131 ft) With enhanced dynamics: 70 m (229 ft) | |
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| Output | 4...20 mA HART PROFIBUS PA FOUNDATION Fieldbus | |
| Certificates / Approvals | ATEX, IECEx, Overfill prevention WHG SIL EN 10204-3.1 NACE | |
| Options | Display, Customized parameterization Gas-tight feed through Antenna extension PWIS free | |
| Specialities | SIL 2 according to IEC 61508, Safety and reliability with Multi-Echo Tracking, HistoROM | |
| Application limits | Maximum measuring range is dependent on the tank form and/or application Ammoniacal gas phase: FMR54 in stilling well Strong buildup formation: FMR54 with air purge 316L or Alloy C non-resistant: FMR50, FMR52, FMR53 Hygiene requirements: FMR52, FMR53 Custody transfer measurement: FMR5xx | |
