LEL/H2S Wireless On-Site Monitoring

Gas detection is the process of monitoring an environment for the presence of harmful or combustible gases to ensure safety. These systems use various sensors to measure gas concentrations and trigger alarms, protecting people and property from dangers like explosions or toxic exposure. Fixed gas detectors are used across many sectors, including oil and gas, chemical processing, and water treatment. Accurate safety uses a combination of electrochemical detectors and catalytic combustion. Our gas detection fleet is wireless, portable and able to be deployed and calibrated in minutes providing your employees with a safe monitored atmosphere.

How it works 

• Gas detectors use a sensor to measure the concentration of specific gases in the air.
• When the gas concentration exceeds a safe limit, the sensor generates an electrical signal that triggers an alarm (audible and/or visual).
• Some common sensor technologies include:
• Electrochemical sensors: Used for detecting toxic gases like carbon monoxide and oxygen, where a reaction creates a current proportional to the gas concentration.
• Catalytic combustion sensors: Used for combustible gases. A heated catalyst causes the gas to combust, and the resulting change in temperature or resistance is measured.
• Infrared sensors: Detect gases by measuring the specific wavelengths of infrared light that the gas absorbs.
• Laser-based detectors: Use laser optical technology to identify a gas's specific chemical "fingerprint". 

Types of gas detectors 

• Portable detectors: Small, lightweight devices that are carried by individuals, often used for personal protection or to test confined spaces before entry.
• Fixed detectors: Installed in a specific area for continuous, long-term monitoring. They can be linked to a larger system with a central controller or PLC (programmable logic controller).
• Open-path detectors: Monitor a path between two points for leaks, often using laser technology. 

Applications 

• Industrial safety: In chemical plants, oil rigs, and manufacturing facilities to prevent explosions or hazardous exposures.
• Confined space entry: Before entering a tank, vessel, or other enclosed area to check for oxygen deficiency, flammable gases, or toxic gases.
• Home and commercial use: To detect leaks from natural gas or carbon monoxide sources.
• Emergency services: For firefighting and emergency response teams. 

What is detected 

• Combustible/Flammable gases: LEL (Methane, propane, hydrogen, etc.)
• Toxic gases: H2S (Hydrogen Sulfide).