Liquiphant FTL31
Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Vibration Liquids |
| Characteristic / Application | Level switch for liquids and is used in tanks, vessels and pipes. |
| 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 |
| Communication | AC/DC, DC-PNP |
| Certificates / Approvals | CSA C/US, EAC |
| Safety approvals | Overfill protection WHG Leakage |
| Design approvals | EN 10204-3.1 |
| Marine approval | ABS/ LR/ BV/ DNV |
| Options | Adjustment switching delay Cleaned from oil+grease, PWIS free |
If a hygienic connection with clamp is required, select the FTL33.
The Liquiphant FTL31 liquid point level switch is suitable for measurement in all industries, mainly in the mechanical engineering industry. The Liquiphant can be used for overflow protection and pump dry-run protection in cleaning and filter systems as well as in cooling and lubricating vessels.
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 to meet the highest quality and environmental sustainability requirements. The self-monitoring Liquiphant switches safely even in the event of a power failure.
Provides precise switch points unaffected by changes in medium properties
Even when the medium changes, plug-and-play sensors can be used without adjustment. 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
The modular design offers different process temperatures and the widest range of process connections and accessories on the market, meeting every application requirement
No mechanical moving parts, maintenance-free
Application areas
The FTL31 is a reliable point level switch with a compact design and stainless steel housing. It is suitable for general industrial applications in all industries, for example OEM equipment with limited installation space.
Process connection: thread
Temperature: -40...+150 °C (-40...+302 °F)
Pressure: -1...+40 bar (-14.5...580 psi)
Surface finish: 3.2 µm
Certifications: WHG overflow protection and leak detection, CSA C/US, 3.1 material certificate, marine approvals, final inspection report
Replacement for FTL20/FTL260 and FTL31:
FTL20-0010 FTL31-AA1U2AAWBJ
FTL20-001B FTL31-AA1U3AAWBJ
FTL20-0020 FTL31-AA4U2AAWBJ
FTL20-0025 FTL31-AA4M2AAWBJ
FTL20-002B FTL31-AA4U3AAWBJ
FTL20-002D FTL31-AA4M3AAWBJ
FTL20-0110 FTL31-AA1U2AAW5J
FTL20-011B FTL31-AA1U3AAW5J
FTL20-0120 FTL31-AA4U2AAW5J
FTL20-0125 FTL31-AA4M2AAW5J
FTL20-012B FTL31-AA4U3AAW5J
FTL20-012D FTL31-AA4M3AAW5J
FTL20-061B FTL31-AA1U3AAWDJ
FTL20-062B FTL31-AA4U3AAWDJ
FTL20-062D FTL31-AA4M3AAWDJ
FTL260-0010 FTL31-AA1U2BAWSJ
FTL31-AA1U3BAWSJ
FTL260-0020 FTL31-AA4U2BAWSJ
FTL31-AA4U3BAWSJ
FTL260-1010 FTL31-AA1U2BAWSJ
FTL31-AA1U3BAWSJ
FTL260-1020 FTL31-AA4U2BAWSJ
FTL31-AA4U3BAWSJ
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Technical information
Technical data
Documents/Manuals/Software
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Measuring principle video
Source: public information from the Endress+Hauser website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Tuning Fork Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Tuning Fork.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Tuning Fork for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Tuning Fork Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Tuning Fork.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Tuning Fork for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Tuning Fork Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Tuning Fork.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Tuning Fork for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Tuning Fork Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Tuning Fork.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Tuning Fork for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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