Honeywell Hydrogen Leak Detection Sensor
Honeywell Hydrogen Leak Detection Sensors detect hydrogen leaks using Thermal Conductivity Detection (TCD) technology in hydrogen-powered systems. This sensor incorporates a thermal conductivity-based sensing element, chemical poisoning resistance, and continuous measurements with updates every 100ms. The HLD sensor provides a hydrogen sensing range of 0% to 4% with 50ppm resolution and ±10% accuracy. It operates over a temperature range from -40°C to +85°C, offers a voltage range from 8Vdc to 36Vdc, and features IP67 ingress protection. Typical applications include hydrogen-powered aircraft, automobiles, buses, construction equipment, heavy-duty trucks, and power generators.
Features
- Chemical poisoning resistance
- Compliant with RoHS standards and REACH regulations
- Designed to resist chemical contamination
- Detects hydrogen leakage with a resolution of 50ppm
- Detects hydrogen leaks in less than 2 seconds
- Initializes in under 1 second
- Provides high measurement accuracy
- Rated IP67 for ingress protection
- Supports CAN communication protocol
- Utilizes a thermal conductivity-based sensing element
Applications
- Hydrogen-powered aircraft
- Hydrogen-powered automobiles
- Hydrogen-powered buses
- Hydrogen-powered construction equipment
- Hydrogen-powered generators
- Hydrogen-powered heavy-duty trucks
Technical Specifications
| Parameters | Values |
|---|---|
| Atmospheric Pressure Range | 80KPa to 110KPa |
| Hydrogen Detection Range | 0% to 4% |
| In-rush Current | 100mA |
| Mechanical Shock | 500m/s2 |
| Operating Temperature Range | -40°C to +85°C |
| Voltage Rating Range | 8Vdc to 36Vdc |
Video
This TTI Tech Specs video for Honeywell HLD Sensor explains that they detect hydrogen leaks with precision using TCD technology. With a rapid response time under 2 seconds, it’s ideal for hydrogen-powered vehicles, generators, and industrial equipment.
See video transcript below
Video Transcript
“It’s just a *little* leak.” Those could be your famous last words if the leak is an invisible, odorless, and highly flammable gas like hydrogen. Or you can use Honeywell’s HLD Series, Hydrogen Leak Detector and ensure that with this sensor, that both lives and assets are wellprotected. The HLD series offers high accuracy detection of low concentrations of hydrogen to improve safety and enhance the protection of personnel and equipment. It’s based on advanced Thermal Conductivity Detection technology, or TCD, combined with Honeywell’s advanced algorithms to compensate for temperature, pressure, and humidity. This eliminates false positives and delivers highly accurate performance for ten years without manual intervention. The HLD series is offered with a USCAR connector and various output options for easy integration, and it’s IP67 sealed for use in a wide range of applications.
