Gas detector DG-4E1/MR-Nstd ammonia, calibration on request <100ppm, from -40°C, electrochemical sensor DG-4E1/MR-NSTD

Gas Detectors DG/MR – Reliable Ammonia Monitoring

The DG-4E1/MR-Nstd gas detector is an advanced device designed for continuous monitoring of ammonia concentration in various spaces. It utilizes an electrochemical sensor, ensuring precise measurements even in challenging conditions. The device is particularly useful in industrial plants, logistics centers, and public facilities, where controlling the presence of toxic gases is crucial for safety.

The DG/MR series detectors communicate via an RS-485 port with the MODBUS RTU protocol, enabling integration with supervision and control systems. Built-in relays with NO/NC contacts allow for activating visual and audible alarms, as well as automatically shutting down equipment when permissible limits are exceeded. A replaceable sensor module simplifies maintenance and calibration, reducing operating costs.

Construction and functionality

The device is characterized by a robust construction and the ability to operate in a wide temperature range, even down to -40°C. This allows the detector to be used both indoors and outdoors without fear of damage. The built-in microprocessor ensures stable and reliable operation, and the thermal compensation circuit minimizes the impact of temperature changes on measurement accuracy. Semi-automatic addressing in the digital network simplifies configuration and integration with other gas detection system devices.

• Wide operating temperature range: from -40°C, allowing use in harsh environmental conditions.
• Replaceable sensor module: simplifies maintenance and calibration, reducing operating costs.
• RS-485 communication: enables integration with supervision and control systems.
• Two alarm thresholds: allow for precise adjustment of the response to the level of hazard.
• Built-in relays: enable activation of alarms and automatic shutdown of equipment.
• Factory calibration: ensures measurement accuracy immediately after startup (calibration on request <100ppm).
• Semi-automatic addressing capability: simplifies configuration in a digital network.

The DG-4E1/MR-Nstd detector is calibrated in its own GAZEX Calibration Laboratory, operating in accordance with the PN-EN ISO/IEC 17025 standard (PCA accreditation No. AP150), which guarantees high quality and reliable measurements. The device is not intended for use in areas hazardous due to the explosion of gases, vapors, or dust – it is a detector designed for monitoring toxicological hazards.