Endress+Hauser Liquiphant FTL41 FTL41-AA4B7AA2A1 Point Level Switch
- Product Name:Endress+Hauser Liquiphant FTL41 FTL41-AA4B7AA2A1 Point Level Switch
- Product Number:FTL41-AA4B7AA2A1
- Brand:Endress+Hauser
- Views:8
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Endress+Hauser Liquiphant FTL41 FTL41-AA4B7AA2A1 Point Level Switch
的详细介绍
Endress+Hauser Liquiphant FTL41 Point Level Switch

FTL41-AA4B7AA2A1
Optimize your process automation and inventory safety with the Endress+Hauser Liquiphant FTL41 (Model: FTL41-AA4B7AA2A1). This industrial-grade vibronic level sensor provides highly reliable point level detection in liquids. It is an ideal solution for overfill prevention, high/low level alarms, and pump dry-run protection, offering a heavy-duty relay output housed in a durable aluminum casing with convenient plug-and-play connectivity.
Key Features & Benefits
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Universal Liquid Detection: Delivers accurate switching unaffected by changes in liquid density, viscosity, turbulence, bubbles, or surface foam.
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Maintenance-Free Design: Built with no mechanically moving parts, eliminating physical wear and ensuring a long, trouble-free operating life.
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Heavy-Duty Output & Enclosure: Features a powerful DPDT relay output integrated into a robust, coated aluminum single-compartment housing for demanding environments.
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Plug-and-Play Connection: Equips a professional valve plug interface for faster electrical wiring, minimizing labor costs and downtime during installation.
Technical Specifications: FTL41-AA4B7AA2A1
| Parameter | Specification |
| Brand | Endress+Hauser |
| Product Family | Liquiphant |
| Model Code | FTL41-AA4B7AA2A1 |
| Measurement Type | Vibronic Point Level Detection |
| Approval Rating | Non-hazardous area |
| Electronic Output | FEL44 Relay DPDT (19–253V AC / 19–55V DC) |
| Housing Material | Single compartment; Aluminum, coated |
| Electrical Connection | Valve plug ISO4400 M16, IP65 rated |
| Process Connection | Thread ISO228 G3/4, 316L Stainless Steel |
| Probe Version | Compact version, 316L Stainless Steel wetted parts |
Ideal Applications
The Liquiphant FTL41-AA4B7AA2A1 is designed for storage, utility, and process tanks across diverse industries such as water treatment, chemical utilities, energy management, and machine construction. It is highly effective for:
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Reliable high-level or low-level limit detection in process vessels.
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Overfill containment and environmental protection in liquid storage tanks.
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Dry-run protection for supply pumps in industrial piping systems.
FAQs
What makes the FTL41-AA4B7AA2A1 model different from standard wire-entry models?
This specific model features an ISO4400 M16 valve plug connection rather than a traditional cable gland thread. This allows operators to quickly disconnect and reconnect the wiring harness for faster maintenance, instrument testing, or replacement without re-wiring the terminal block.
Can the FTL41-AA4B7AA2A1 handle high-vibration piping environments?
Yes, the internal sensor mechanics are specifically tuned to a distinct high-frequency vibration spectrum. This ensures that typical plant floor background vibrations or pipeline turbulence do not cause false switching alarms.
Does changing the liquid type require resetting or recalibrating the level switch?
No, the device utilizes advanced tuning fork vibration technology. The switching points remain highly stable and consistent even if the liquid density, viscosity, temperature, or exact chemical composition changes mid-process.
