Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Conductive |
| Characteristic / Application | Compact rod probe with multipoint detection, possible up to 5 switch points. Simple rod shortening. |
| Supply / Communication | DC PNP 10,8V ... 45V Relay 20V ... 230V AC Relay 20V ... 55V DC |
| Ambient temperature | -40 °C ... 70 °C (-40 °F ... 158 °F) |
| Process temperature | -40 °C ... 100 °C (-40 °F ... 212 °F) |
| Process pressure / max. overpressure limit | Vacuum ... 10 bar (Vacuum ... 145 psi) |
| Min. conductivity of medium | 10 µS/cm |
| Main wetted parts | 316L, PP, PPS |
| Max. tensile strength | 1000 N |
| Process connection | G 1 1/2 NPT1 1/2" |
| Sensor length | 0.1m ... 4m (3.9" ... 157") |
| Communication | DC PNP Relay |
| Certificates / Approvals | ATEX, EAC Ex |
| Safety approvals | Leakage Detection |
| Components | Transmitter: FTW325 |
| Application limits | Observe min. medium conductivity |
The FTW31 is a rod-type conductive point level switch; for the cable version use the FTW32.
The Liquipoint FTW31 can be used for point level detection of conductive liquids, with simple and safe measurement. The multi-point detection function (up to 5 probes) gives the Liquipoint FTW31 a wider measuring range.
Benefits
One probe can be used for up to five point level detections
Two-point control with upper and lower limit detection
Flexible use:
1. Rod probe with plug-in electronics, optionally with 2 or 3 transistor or relay outputs;
2. Connection to a separate transmitter power supply unit
No calibration required; suitable for common conductive liquid measurement
No moving parts: - long service life - no wear and blockage, reliable operation
Four selectable measuring ranges: 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ
Economical probe for conductive liquids
Application areas
The Liquipoint T sensor is suitable for point level detection of conductive liquids (10 μS/cm). Depending on the number of measuring points (up to 5 rod probes), tasks such as overflow protection, dry-run protection, two-point pump control and multi-point detection can be performed via the existing process connections.
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Technical information
Technical data
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Source: public information from the Endress+Hauser website
Related Models
| Model | Name |
|---|---|
| FTW31-A1A2HA4A | 电导液位计 |
| FTW31-A1A3AA0A | 电导液位计 |
| FTW31-B1A3CA0A | 电导液位计 |
| FTW31-B1A5AA0A | 电导液位计 |
| FTW31-D1A3AA0A | 电导液位计 |
Case Studies
市政污水处理污水处理厂 · 电导式应用案例
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,对电导式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导式,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 · 电导式应用案例
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,对电导式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导式,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 · 电导式应用案例
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,对电导式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导式,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 · 电导式应用案例
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,对电导式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导式,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。







