音叉限位开关
Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Vibration Liquids |
| Characteristic / Application | Compact vibronic device with an optional pipe extension up to 2 m; Modular housing concept; Wide range of certificates |
| Specialities | RFID TAG for easy identification, Plug and play functionalities |
| Supply / Communication | 10...55V / DC-PNP 3-wire 19...253V AC or 19...55V DC / relays NAMUR |
| Ambient temperature | -40 °C...+70 °C (-40 °F...+158 °F) |
| Process temperature | -40 °C...+150 °C (-40 °F...+302 °F) |
| Process pressure / max. overpressure limit | Vacuum...40 bar (Vacuum...580 psi) |
| Min. density of medium | 0.5 g/cm³ (0.4 g/cm³ optional) |
| Main wetted parts | 316L |
| Process connection | Threads: G3/4A, G1A, R3/4", R1, NPT3/4, NPT1 Flanges: DN25...DN100 ASME 1"...4" JIS 25A...50A |
| Process connection hygienic | Tri-Clamp ISO2852 |
| Sensor length | Up to 2 m |
| Communication | DC-PNP 3-wire Relays NAMUR |
| Certificates / Approvals | ATEX, IEC Ex, CSA, NEPSI |
| Safety approvals | Overfill protection WHG |
| Design approvals | EN 10204-3.1 ASME B31.3 Process Piping CRN |
| Marine approval | ABS/ LR/ BV/ DNV |
| Components | FTL325N Interface NAMUR |
More than 6 million Liquiphant limit switches have been successfully and reliably in operation worldwide. The design without mechanical moving parts effectively eliminates the risk of mechanical failure and ensures stable operation. In addition, the device does not need to be configured separately for different media.
Advantages
One measuring system meets the measuring requirements of all liquids. No mechanical moving parts, plug-and-play, easy to use
Compared with float level switches, no mechanical moving parts and higher long-term stability
High switch point repeatability
Suitable for all pumpable liquids
Maintenance-free
Application
Limit switch with extension tube, suitable for limit detection of all kinds of liquids.
Process connections: threaded, flanged and hygienic connections (Tri-Clamp)
Temperature range: -40...+150°C (-40...+302°F)
Pressure range: -1...+40 bar (-14.5...+580 psi)
Sensor material: 316L
International explosion protection and WHG approvals
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Technical documentation
Technical data
Documents/Manuals/Software
Accessories/Spare parts
Measuring principle video
Source:Endress+Hauserwebsite public information
Related Models
| Model | Name |
|---|---|
| FTL41-AAA4AAAAA1AJI1VBJ | 音叉限位开关 |
| FTL41-AAA4AAFAA1AJI1VBJ | 音叉限位开关 |
| FTL41-AAA4ABFAA1AJI1VBJ | 音叉限位开关 |
| FTL41-NBA8AAFAA1AJI1VBJ | 音叉限位开关 |
| FTL41-NBA8ABBAA1AJAAADJ | 音叉限位开关 |
Case Studies
市政污水处理污水处理厂 · 音叉应用案例
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，对音叉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音叉，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 · 音叉应用案例
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，对音叉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音叉，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 · 音叉应用案例
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，对音叉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音叉，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 · 音叉应用案例
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，对音叉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音叉，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。
