音叉液位计
Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Vibration Liquids |
| Characteristic / Application | Point level switch for liquids in the food sector |
| Supply / Communication | 20 ... 253V AC/DC, 2-wire 10 ... 30V DC-PNP, 3-wire |
| 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 | >0,7g/cm³ (>0,5g/cm³ optional) |
| Main wetted parts | 316L |
| Process connection | Threads: G1/2, G3/4, G1, MNPT1/2, MNPT3/4, MNPT1, R1/2, R3/4, R1 |
| Process connection hygienic | Flush mount by use of weld in adapter DIN11851 Tri-Clamp |
| Communication | AC/DC, DC-PNP, IO-Link |
| Certificates / Approvals | CSA C/US, EAC |
| Safety approvals | Overfill protection WHG Leakage |
| Design approvals | EN 10204-3.1 |
| Hygienic approvals | 3A, EHEDG |
| Options | Switching delay Cleaned from oil+grease, Surface finish measurement |
The Liquiphant FTL33 liquid point level switch is designed specifically for the food and beverage industry with high hygienic requirements. The Liquiphant is especially suitable for overflow protection or pump dry-run protection in storage tanks, mixing tanks and pipes.
Compact:
- The smallest vibronic sensor on the market
Safe:
- Continuous self-monitoring
- Reliable switching unaffected by the properties of the medium
Simple:
- No calibration or adjustment required
- Plug and play
Benefits:
-
Designed for hygienic applications, especially in the food industry - with hygienic process connections and certifications
-
Withstands CIP and SIP cleaning - highest protection rating IP69k
-
Designed to meet the highest quality and environmental sustainability requirements; the self-monitoring Liquiphant provides safe switching even in the event of a power failure.
-
Provides precise switch points unaffected by changes in medium properties
-
Plug-and-play point level switch requiring no adjustment under changing media conditions. The measurement is unaffected by conductivity, buildup, turbulence, flow or bubbles
-
No calibration, specific knowledge or tools required (e.g. software)
-
Rugged stainless steel (316L) with the highest durability - no mechanical moving parts, maintenance-free
Application areas:
The FTL33 is a compact point level switch for hygienic applications, suitable for liquid measurement in the food industry and in the life sciences industry.
-
Process connection: thread, M24 process adapter, DIN 11851, Tri-clamp, flush mounting
-
Temperature: -40...+150 °C (-40...+302 °F)
-
Pressure: -1...+40 bar (-14.5...580 psi)
-
Surface finish: 0.76 µm or 1.5 µm
-
Certifications: WHG overflow protection and leak detection, EHEDG, 3-A, FDA, CSA C/US, 3.1 material certificate, final inspection report
Replacement list of FTL20H models and FTL33:
FTL20H-0GDJ1B FTL33-AA1U2ABW5J
FTL33-AA1U3ABW5J
FTL20H-0GDJ2B FTL33-AA4U2ABW5J
FTL33-AA4U3ABW5J
FTL20H-0GDJ2D FTL33-AA4M2ABW5J
FTL33-AA4M3ABW5J
FTL20H-0GDJ2F FTL33-AA4N2ABW5J
FTL33-AA4N3ABW5J
FTL20H-0GEJ1B FTL33-AA1U2ABWSJ
FTL33-AA1U3ABWSJ
FTL20H-0GEJ2B FTL33-AA4U2ABWSJ
FTL33-AA4U3ABWSJ
FTL20H-0GEJ2D FTL33-AA4M2ABWSJ
FTL33-AA4M3ABWSJ
FTL20H-0GEJ2F FTL33-AA4N2ABWSJ
FTL33-AA4N3ABWSJ
FTL20H-0TCJ1B FTL33-AA1U2AB3CJ
FTL33-AA1U3AB3CJ
FTL20H-0TCJ2B FTL33-AA4U2AB3CJ
FTL33-AA4U3AB3CJ
FTL20H-0TCJ2D FTL33-AA4M2AB3CJ
FTL33-AA4M3AB3CJ
FTL20H-0TCJ2F FTL33-AA4N2AB3CJ
FTL33-AA4N3AB3CJ
FTL20H-0TDJ1B FTL33-AA1U2AB3EJ
FTL33-AA1U3AB3EJ
FTL20H-0TDJ2B FTL33-AA4U2AB3EJ
FTL33-AA4U3AB3EJ
FTL20H-0TDJ2D FTL33-AA4M2AB3EJ
FTL33-AA4M3AB3EJ
FTL20H-0TDJ2F FTL33-AA4N2AB3EJ
FTL33-AA4N3AB3EJ
FTL20H-0UPJ1B FTL33-AA1U2AB5ZJ
FTL33-AA1U3AB5ZJ
FTL20H-0UPJ2B FTL33-AA4U2AB5ZJ
FTL33-AA4U3AB5ZJ
FTL20H-0UPJ2D FTL33-AA4M2AB5ZJ
TL33-AA4M3AB5ZJ
FTL20H-0UPJ2F FTL33-AA4N2AB5ZJ
FTL33-AA4N3AB5ZJ
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Source: public information from the Endress+Hauser website
Related Models
| Model | Name |
|---|---|
| FTL33-AA4U2ABW5J | 音叉液位计 |
| FTL33-AA4U2ABWSJ | 音叉液位计 |
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。







