电容式限位开关
The Liquicap FTI51 uses a rod probe and can be used for limit detection of highly viscous liquids and liquids prone to buildup, as well as for interface and foam detection of conductive liquids. The FTI51 has buildup compensation for reliable measurement. The probe has obtained international approvals from various relevant industries and has a wide range of applications. Wetted parts use corrosion-resistant materials and FDA-approved materials to meet the highest safety standards.
Advantages
Fast and simple calibration and commissioning by key operation
Various approvals and permits for a wide range of applications
Wetted parts use corrosion-resistant materials and FDA-approved materials
Two-stage overvoltage protection prevents vessel discharge (gas discharge tube + protective diode)
Short response time of the measured value
No calibration required after electronics replacement
Automatic electronics monitoring
Areas of application
The Liquicap M FTI51 is preferably used in the following measurement applications:
Applications with high viscosity and buildup tendency
Interface detection between different liquids (e.g. oil/water interface)
Foam detection of conductive liquids
The probe has a robust, proven construction (self-sealing cone) and can be used in applications from vacuum to overpressure up to 100bar
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Technical documentation
Technical data
Documents/Manuals/Software
Accessories/Spare parts
Source:Endress+Hauserwebsite public information
Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Capacitive Liquid |
| Characteristic / Application | Capacitive rod probe |
| Specialities | Interface detection Foam detection |
| Ambient temperature | -50 °C ... +70 °C (-58 °F ... +158 °F) With separate housing: -50 °C ... +120 °C (-58 °F ... +248°F) |
| Process temperature | -80 °C ... +200 °C (-112 °F ... +392 °F) |
| Process pressure / max. overpressure limit | Vacuum ... 100 bar (Vacuum ... 1450 psi) |
| Main wetted parts | Insulation material: PTFE, PFA 316L |
| Process connection | G 1/2 ... 1 1/2 NPT 1/2 ... 1 1/2 Flange from DN25.../ASME 1".../JIS 10K... |
| Process connection hygienic | Tri-Clamp ISO2852 gap free plated Dairy coupling Flush mount |
| Sensor length | Total length of probe: max 6 m (20 ft) |
| Communication | 2- wire 19-253 VAC 3-wire PFM Relay DPDT DC-PNP 8/16 mA |
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI, EAC |
| Safety approvals | Overfill prevention WHG SIL |
| Design approvals | EN 10204-3.1 NACE MR0175 |
| Marine approval | GL/ ABS/ DNV |
| Options | Inactive length Fully isolated active build-up compensation Ground tube Separate housing |
| Components | Transmitter PFM: FTC325, FTC625, FTC470Z, FTC471Z 3-wire: FTC325 |
| Application limits | Notice the pressure and temperature derating. Notice for non conductive medium the DK. |
Related Models
| Model | Name |
|---|---|
| FTI51-AAB1UPJ21E1A | 电容式限位开关 |
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。
