The PFA Magnetostrictive Liquid Level Sensor is designed for continuous level measurement in highly corrosive chemical environments where conventional radar, capacitive, and float-type sensors fail due to chemical attack, instability, or frequent recalibration requirements.
It provides stable industrial-grade output for 24/7 chemical process control with full PFA-wetted protection and direct PLC/DCS integration.

Key Advantages

Full PFA wetted construction for strong acid and alkali resistance
Supports PLC / DCS / SCADA integration without signal conversion
No frequent recalibration required after installation
Direct replacement for unreliable radar/float level systems in chemical tanks

Technical Specifications

Parameter	Specification
Model	HNL30-B
Measurement Range	0–2500mm (customizable)
Accuracy	±1mm / ±0.05% F.S.
Resolution	0.1mm (≤400mm range)
Output Signals	4-20mA, RS485
Power Supply	24VDC
Operating Temperature	-20℃ to +80℃
Wetted Material	PFA
Housing Material	Corrosion-resistant Polymer / 304 Stainless Steel (Optional)
Process Connection	Threaded / Flange / Custom
Electrical Interface	M12 / Hessmann Connector
Protection Rating	IP67
Certification	CE

Application Scenarios

The sensor is suitable for industrial environments with corrosive or aggressive media:
Chemical Manufacturing & Refining: Storage tanks for strong acids, alkalis, and solvents.
Semiconductor & Electronics: Wet processing tools and high-purity chemical distribution systems (CDS).
Electroplating & Surface Treatment: Pickling tanks and plating baths.
Water & Wastewater Treatment: Dosing tanks for aggressive chemical reagents.

Installation & System Compatibility

The sensor supports multiple installation methods to adapt to different tank structures:
M50 threaded installation
Loose flange mounting
Custom process connection design

It is fully compatible with:
PLC control systems
DCS industrial automation platforms
SCADA monitoring systems

Optional Configurations

To meet different project requirements, the following customization options are available:
Multi-point temperature measurement function
Customized cable length
Special corrosion-resistant process connection
OEM/ODM structural adaptation

Quality System & Certifications

All products are manufactured under the ISO 9001:2015 quality management system standards.
Our products have obtained international certifications, including:
CE Certification
ATEX Compliance
SIL Safety Standards
We maintain strict internal inspection procedures covering material selection, sealing performance, signal stability, and environmental resistance testing before shipment.

Certificate

FAQ

Q: Can this sensor handle liquid-liquid interface measurement, or only total level?

A: Yes, it can be customized for both total level and interface measurement (e.g., separating acid from organic solvents). By modifying the density of the PFA float to match the specific gravity of your upper and lower liquids, the magnetostrictive principle accurately tracks the interface boundary. Please provide your media densities when requesting a quote.

Q: How do you handle custom flange and process connection requests?

A: We offer standard M50 threads and loose flanges complying with ANSI, DIN, and JIS standards. If your tank setup requires a unique configuration (e.g., a specific sanitary tri-clamp or an oversized DN flange), our engineering team can custom-machine the entire process connection in PFA to match your existing footprint.

Q: Is the electronics enclosure protected against corrosive acid vapors?

A: Absolutely. While the wetted parts are 100% PFA, the top electronics module is sealed inside a heavy-duty, corrosion-resistant polymer housing (IP67 rated). The internal circuitry is fully potted, and the dual-chamber design with an airtight seal effectively eliminates the risk of acid fumes corroding the wiring or circuit boards.

Q: What is your standard lead time for customized lengths?

A: For standard custom lengths, our typical production turnaround is 7 to 10 working days from drawing approval.

Q: Do your sensors carry international compliance certificates for global projects?

A: Yes, the HNL30-B series is fully CE certified and complies with industrial EMC standards (GB/T) to ensure trouble-free integration into European and American automation systems. All raw PFA materials used satisfy standard industrial and chemical safety directives.

HNL30-BMagnetostrictive Level Gauge Parameters
Specific Parameters	Value / Description
Measurement Principle	The HNL30-B magnetostrictive level gauge is a high-precision continuous level measurement instrument based on the magnetostrictive effect. It calculates the liquid level height by detecting the propagation time of the magnetic coupling signal. It features high accuracy, high stability, and non-contact measurement, and is widely used in continuous level/interface monitoring in industrial processes. It supports the measurement of various media such as conductive/non-conductive, viscous/corrosive media.
Product Type	Stainless steel level gauge Corrosion-resistant level gauge
Measurement Range	0-2500mm, Customization
Measurement Accuracy	±1mm, Customization
Outputs	4-20mA, RS485
Power Supply	24VDC
Operating Temperature	-20-80℃
Material	304, PFA
Process Connection	Threaded, Flange
Electrical Connection	Hessmann, M12 Connector
Protection Level	IP67
Certificate	CE certified
Ordering Information	-

Hot Tags: pfa magnetostrictive liquid level sensor, China pfa magnetostrictive liquid level sensor manufacturers, suppliers, factory, float switch level control, high level alarm float switch, magnetic float level indicator, Side Mounted Float Level Switch, ultrasonic water level sensor 4 20ma, vertical mount float switch