电容液位计
Technical Data
CompareContinuous / Liquids
| Measuring Principle | Capacitive |
| Characteristic / Application | Fully insulated rope probe, for standard and extreme process conditions (temperature, pressure) |
| Interface measurement | Interfaces liquid / liquid also with emulsion layers |
| Specialities | Inactive length Factory calibrated short response time by change of value |
| Supply / Communication | 12-36V DC HART PFM |
| Accuracy | repeatablity 0,1% |
| Linearity error for conductive liquids | <0.5% |
| Ambient temperature | -50°C...+70°C -58°F...+158°F |
| Process temperature | -80°C...200°C -112°F...392°F |
| Process pressure / max. overpressure limit | Vacuum ... 100 bar (Vaccum ... 1450 psi) |
| Main wetted parts | Insulation material: FEP,PFA 316L |
| Process connection | G 3/4, G 1, G1 1/2 /NPT 3/4", NPT 1, NPT1 1/2" Flange from DN25.../ASME 1".../JIS... |
| Process connection hygienic | Tri-Clamp ISO02852 gap free plated Dairy coupling Flush-mounted seal |
| Sensor length | Total length: 6m (20ft) Inactive length: max. 2m (7ft) |
| Max. measurement distance | 0.42 m ... 10.0 m (1.38 ft ... 33 ft) |
| Communication | 4...20mA HART PFM |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, TIIS, INMETRO, NEPSI, EAC |
| Safety approvals | SIL |
| Design approvals | EN 10204-3.1 NACE MR0175 |
| Hygienic approvals | EHEDG |
| Marine approval | GL/ ABS/ DNV |
| Options | Separate housing gas-tight probe seal |
| Application limits | Changing, non-conductive media, conductivity < 100 μS/cm Notice the pressure and temperature derating |
The Liquicap FMI52 reliable, fully insulated probe can be used for continuous liquid level measurement, especially in small tanks, media with buildup and extremely high temperatures, and is the best choice for large measuring ranges. Measurement is independent of the DK value (dielectric constant). Used together with the Fieldgate FXA320 (remote measured value access via Internet technology), the Liquicap provides an ideal inventory management solution.
Advantages
No calibration required for liquids with conductivity above 100μS/cm; probe length factory preset to 0%/100%, fast and simple commissioning
Text display with menu-guided on-site setup (optional)
Various approvals and permits obtained for a wide range of applications
Compliant with IEC 61508, suitable for safety systems requiring SIL2
Wetted parts made of corrosion-resistant and FDA-approved materials
Dual overvoltage protection (gas discharge tube + protective diode) prevents tank discharge
Electronics provide built-in buildup compensation
Areas of application
The Liquicap FMI52 has a robust construction (self-sealing cone); the probe withstands pressures from vacuum to 100bar. Sealing and isolating materials used in the tank can withstand temperatures from -80 to +200°C. For liquids with conductivity above 100μS/cm, the measured value is independent of the DK (dielectric constant), so different liquids can be measured without recalibration.
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Technical documentation
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Source:Endress+Hauserwebsite public information
Case Studies
市政污水处理污水处理厂 · 电容应用案例
项目背景
市政污水处理客户在污水处理厂环节,长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移,影响达标排放」的困扰,对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的电容,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应市政污水处理复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
食品饮料食品生产线 · 电容应用案例
项目背景
食品饮料客户在食品生产线环节,长期面临「卫生级测量要求高,在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰,对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的电容,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应食品饮料复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
化工制药反应釜与储罐 · 电容应用案例
项目背景
化工制药客户在反应釜与储罐环节,长期面临「介质腐蚀性强、工况复杂,仪表需耐腐蚀且防爆」的困扰,对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的电容,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应化工制药复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。
电力能源电厂锅炉与汽机 · 电容应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节,长期面临「高温高压工况下测量不稳定,维护停机成本高」的困扰,对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况,为客户选配了适配的电容,并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升,数据稳定可靠;
- 仪表适应电力能源复杂工况,维护量大幅降低;
- 助力客户实现连续在线监测与降本增效,获得客户高度认可。







