L704 Fuel Level Sensor ATEX

The L704 Fuel Level Sensor ATEX is an advanced, intrinsically safe and explosion-proof fuel level sensor designed for accurate, real-time fuel tank level measurement. Engineered for diesel fuel level monitoring, generator fuel tanks, and fuel level measurement in critical environments, it features high-precision digital signal processing, advanced temperature compensation, and a robust, fully welded stainless steel structure—ensuring long-term durability, reliability, and resistance to harsh and corrosive conditions.

Whether used as a diesel fuel tank level sensor, a fuel level transmitter in petrochemical facilities, or a fuel tank sensor for aviation and marine storage, the L704 delivers stable, high-performance monitoring for demanding industrial and commercial applications.

Applications:

Fuel Storage Tanks – Reliable fuel level monitoring for underground and above-ground tanks.
Petrochemical Plants – Accurate and safe fuel level sensor performance in hazardous zones.
Oil Refineries – Stable, explosion-proof fuel level transmitter for fuel inventory control.
Aviation Fuel Storage Facilities – High-precision fuel tank sensor for jet fuel applications.
Marine Fuel Tanks – Corrosion-resistant, intrinsically safe monitoring for ships and offshore tanks.

Description

The L704 Digital Fuel Level Sensor ATEX is a high-accuracy, high-reliability fuel level sensor designed for precise fuel level monitoring, fuel level measurement, and fuel tank level sensing in industrial and commercial applications. It is ideal for diesel fuel tanks, generator fuel tanks, and external fuel storage systems, where stable and long-term performance is essential.

Equipped with a high-performance pressure sensing element and a precision digital circuit board, the L704 is built into a fully welded stainless steel housing that ensures maximum durability in harsh environments. Features like zero-point automatic stabilization, advanced temperature compensation, and digital signal processing make it a dependable choice for modern fuel level transmitter applications.

With an immersion-capable cable and an explosion-proof, intrinsically safe design, this digital fuel level sensor delivers reliable and real-time fuel level detection — even in demanding or hazardous environments.

Features

Fully Welded Stainless Steel Housing – Guarantees zero leakage, zero permeation, and excellent corrosion resistance, making it ideal for demanding fuel tank level sensor applications in diesel, aviation, and marine environments.

High-Precision Imported Core – Provides up to 0.1% accuracy, ensuring exceptional long-term stability for fuel level monitoring and fuel level measurement in industrial fuel tanks.

Advanced Digital Circuit Board – Offers full-temperature compensation to eliminate errors caused by environmental changes, boosting the performance of this digital fuel level sensor in variable conditions.

Molecular Sieve Vent Pipe – Prevents moisture ingress and supports accurate pressure compensation, contributing to stable output in external fuel tank level sensor systems.

Unique Sealing Technology – Strengthens sensor protection and insulation, enhancing the durability of the fuel level transmitter in harsh and corrosive environments.

Explosion-Proof & Intrinsically Safe Design – Certified for hazardous areas, ensuring safe and reliable operation in fuel storage tanks, generator fuel tanks, and diesel fuel tank level sensor installations.

Specification

Pressure Range -1…0-0.05Bar…50 Bar Optional
Overload 150% F.S.
Burst Pressure 300% F.S.
Accuracy(Linearity Hysteresis Repeatability) ≤±0.5%F.S; ≤±0.25%F.S; ≤±0.15%F.S

Including non-lin., rep. and hys. Optional

Long-term Stability Standard: 0.1%F.S±0.05%/Year Max: 0.15%F.S±0.05%/Year
Temp Compensation -10℃~60℃
Working Temp. -20℃~70℃
Medium compatible Compatible with 316 Stainless Steel or Titanium Alloy or PTFE materials.
Output 4-20mA or

4-20mA +HART

0-5V/0.5-4.5V/1-5V/0-10V RS485 RS485+4-20mA
Power Supply 12~ 36 Vdc 12~ 30Vdc/5Vdc 10~ 30Vdc 12~ 30 V DC
Electrical connection Fixed cable and water proof IP68
Mounting Type None (standard type), G1/4” male, 1/4”NPT male/Female, others by customized.
Water Proof IP68

FAQ

1. What is a fuel level pressure sensor, and how does it work?

A fuel level pressure sensor measures the fuel level inside a tank by detecting the hydrostatic pressure exerted by the liquid column. The L704 sensor converts this pressure into an electrical signal, providing accurate and real-time fuel level monitoring.


2. Is the L704 suitable for diesel fuel tanks?

Yes, the L704 digital fuel level sensor is specifically designed for use in diesel fuel tank level sensor applications, including storage tanks, generators, and heavy equipment, thanks to its corrosion-resistant, explosion-proof design.


3. Can this sensor be used in hazardous environments?

Absolutely. The L704 features an explosion-proof and intrinsically safe design, making it ideal for fuel storage tanks in petrochemical plants, oil refineries, and other hazardous industrial areas.


4. What output signals are available with the L704?

The sensor supports standard analog outputs such as 4–20mA, 0–10V, and RS485 digital communication, making it compatible with most fuel level transmitter systems and industrial control platforms.


5. How accurate is the L704 fuel tank sensor?

The L704 offers high-precision fuel level measurement with an accuracy of up to 0.1%, making it one of the most reliable solutions for fuel level monitoring in challenging environments.


6. Can this sensor be used in marine or aviation fuel tanks?

Yes, the L704 is engineered with a fully welded stainless steel structure, making it highly suitable for marine fuel tanks and aviation fuel storage systems where corrosion resistance and stability are critical.


7. Is the L704 compatible with fuel level indicators or gauges?

Yes. The sensor’s output can be connected to fuel level indicators, digital fuel gauges, or remote monitoring systems for easy visualization and control of fuel levels.

Datasheet

L704 Fuel Level Pressure Sensor Datasheet