LSM800

The LSM800 is a robust capacitive fuel and oil level sensor developed for defence and security UAV platforms. The lightweight, compact design utilises an AN-8 threaded mount for a small footprint and the sensor length is available custom-built up to 450mm.

Constructed from anodised aluminium, the solid-state sensor has no moving parts making the device ideal for use in UAVs where stability and precision are key considerations. The LSM800 delivers a continuous 100Hz measurement of vital fluid levels which enables UAV operators to have real-time data for deeper analysis allowing UAVs to fly further and for longer. Ensuring that fluid levels are within safe limits provides UAV operators confidence in mission-critical scenarios and flags early detection of leaks or other issues.

Boasting an ingress protection rating of IP68 and a 2 bar differential tank pressure rating, the instrument is extremely vibration tolerant and shock resistant allowing the device to maintain high measurement accuracies of ±1% of reading (±0.5% accuracy variants available) without compromise.

The LSM800 has integrated electronics housed within the sensor head, allowing for analog 0-5V, CAN or analog and CAN outputs without the need for external CPU processing. Both the electronics and the entire sensor has an operating temperature rating of 40°C to +125°C (-55°C to +150°C variant available). As a solid-state technology, the sensor is insensitive to orientation allowing for convenient placement to fuel and oil tanks at any angle, including inverted. Certification to MIL STD 461G and RCTA DO160F available.

The LSM800 is well-suited to all common automotive and UAV fuel and oil types including; Gasoline, AVGAS, JET-A, JP-4 and JP-8. The LSM800 is calibrated in the intended fuel or oil, instead of a control liquid, for superior accuracy.

Manufactured to length for a perfect fit straight from the box, the LSM800 is supplied with a flying lead, as standard, and can be adapted and customised to fit a range of connector types dependent on requirement including MIL-DTL-38999 connectors.

EMC Approvals

EMC approvals for this device includes: MIL STD 461G Army Ground Limits: CS114, CS115, CS116, RE102, RS103, RS101, CE102, CS101, RTCA DO160F: Section 25 ESD Cat. A

Output Options

Output options include:

• Analog 0-5V (typically calibrated 0.25V empty, 4.75V full)
• CAN and Analog 0-5V
• CAN only

Accuracy Options

The LSM800 is available in two accuracy specifications:

• ±1% accuracy of reading
• ±0.5% accuracy of reading

Temperature and Pressure Options

Other options include:

• 2 bar differential tank pressure rated (Up to 10 bar pressure ratings available upon request)
• -40°C to +125°C operating temperature range (-55°C to +150°C variant available)

LSM Capacitive Liquid Level Sensors

The LSM800 is a capacitive liquid level sensor in our military product range, equipping ground vehicle and UAV manufacturers with real-time measurement of vital vehicle components. Reventec has vast experience over the past decade delivering highly customised sensor solutions to our customers and have the expertise to design and build sensors to fit specific spatial constraints, liquid type requirements, connector and cabling requirements. Please contact us to discuss your requirements with a member of our team.