Gas detector DG-12/N-Nstd methane, field calibration, semiconductor sensor DG-12/N-NSTD

Methane detector DG-12/N-Nstd – reliable explosion protection

The DG-12/N-Nstd gas detector is a stationary device designed for continuous monitoring of methane presence in rooms. It uses a semiconductor sensor, providing high sensitivity and measurement accuracy. The device is particularly useful in places where there is a risk of explosion or gas accumulation, such as industrial plants, mines, gas stations or boiler rooms.

Construction and principle of operation

The DG-12/N-Nstd detector is based on proven gas detection technology. It has two factory-set alarm thresholds, allowing for a quick response in the event of exceeding the permissible methane concentrations. The built-in optical signaling informs about the device's operating status and exceeding the alarm thresholds. The detector's design allows for easy replacement of the sensor module, which greatly facilitates maintenance and calibration. It is worth noting that the detector is powered by an external system (24V~), which ensures continuous operation without the need to replace batteries.

Key features and benefits

• High measurement accuracy: Semiconductor sensor ensures accurate detection of methane in the range of 10/30% LEL (Lower Explosive Limit).
• Two-stage alarm signaling: Two factory-set alarm thresholds allow for a quick response in case of danger.
• Easy sensor replacement: Modular design allows for quick and easy sensor replacement without the need for calibration at the installation site – this saves time and costs.
• Built-in optical signaling: Clear signaling of the device's operating status and alarms facilitates problem identification.
• Laboratory calibration: Each detector is factory calibrated in the accredited GAZEX Calibration Laboratory (PCA accreditation No. AP150), which guarantees its accuracy and reliability.
• Solid housing: Durable ABS housing protects the device against mechanical damage and external factors (IP44).
• Designed for cooperation with control panels: The detector works with MD alarm modules and MDP measurement-threshold units, integrating with the facility's security system.

Applications

The DG-12/N-Nstd detector finds application in a wide range of industrial and public utility facilities:

• Industrial plants processing or storing flammable gases
• Mines and coke plants
• Gas stations and refineries
• Gas boiler rooms
• Warehouses and storage facilities with flammable materials
• Communal facilities (e.g. sewage treatment plants)

The device is not intended for use in areas at risk of explosion in accordance with the ATEX Directive – this should be taken into account when selecting appropriate equipment for a given working environment. Its dimensions (110 x 140 x 55 mm) allow for discreet installation in various locations.