Gas detector DG-4E/N1-Nstd ammonia, calibration on request <100ppm, from -40°C, electrochemical sensor DG-4E/N1-NSTD

Gas detectors – reliable safety in industry

The DG-4E/N1-Nstd gas detector is an advanced device designed for continuous monitoring of ammonia concentration in industrial and enclosed spaces. It utilizes an electrochemical sensor, providing precise measurement and a quick response to hazards. The device is particularly useful wherever there is a risk of ammonia leakage, such as in refrigeration plants, agricultural facilities, or wastewater treatment plants.

Detectors from the DG/F series, to which this model belongs, are characterized by a modular design and ease of use. The replaceable sensor module allows for quick calibration or repair without the need to replace the entire device, which translates to lower operating costs. The optical signaling of the detector's operating status informs about correct operation or the detection of a dangerous gas concentration.

Construction and application

The DG-4E/N1-Nstd detector works with various control modules (MD-1.A/T, MD-1, MD-2, MD-4, MDP-1.A/T, MDP-1 PLUS, MDP-4, MDP-8, MDP-16), which allows integration with existing alarm systems and process control. The housing made of high-impact ABS (IP44) provides resistance to mechanical damage and water splashes – important in harsh industrial conditions. It should be remembered that due to its construction (ordinary), the detector cannot be used in explosion-hazardous areas.

The device is factory calibrated to detect ammonia in the range below 100 ppm and operates in a wide temperature range – even from -40°C – which makes it an ideal solution for outdoor applications or in cold rooms. The alarm threshold values (20/40 ppm) are set during production and correspond to the values of NDS (highest permissible concentration) and NDSCh (highest permissible short-term concentration).

Key features and benefits

• High measurement accuracy: The electrochemical sensor provides accurate and reliable ammonia concentration measurement results.
• Wide temperature range: Operation in the range from -40°C to ambient temperature enables installation in various environmental conditions.
• Modular design: Replaceable sensor module facilitates servicing and reduces operating costs.
• Simple integration: Compatibility with various control modules facilitates integration with existing safety systems.
• Calibration: All detectors are calibrated in the accredited GAZEX laboratory in accordance with the PN-EN ISO/IEC 17025 standard, which guarantees their accuracy and reliability.
• Durable housing: The ABS housing protects the device from mechanical damage and external factors.
• Visual signaling: Built-in optical signaling informs about the detector's operating status and exceeding alarm thresholds.