RKI Instruments 65-2643RK-05 M2A Explosion-Proof Gas Transmitter

Overview

The RKI Instruments M2A XP is an explosion-proof variant of the versatile M2A gas transmitter, designed for use in hazardous classified areas where explosive atmospheres may be present. It operates standalone or integrated with controllers, PLCs, and DCS systems via 4-20 mA analog or digital Modbus output. The unit features an OLED display with user-friendly push-button menus and supports multiple sensor types including electrochemical toxic sensors and infrared combustible/CO2 sensors.

Key Features

• Explosion-proof design for hazardous classified locations
• Standalone operation or integration with controllers/PLC/DCS via 4-20 mA analog and Modbus digital outputs
• Direct digital readout with OLED display and push-button controls
• Electrochemical plug-in sensors for toxic gases (NH3, SO2, PH3, AsH3, HCN) with high specificity and fast response
• Infrared sensor option for combustibles and CO2
• Two fully programmable alarm relays and fail relay for process control
• Non-intrusive calibration via magnetic wand
• Automatic zero drift correction for stable readings and reduced maintenance
• Long-life sensors with typical lifespan of 2+ years

Applications

• Hazardous area monitoring in petroleum and chemical facilities
• Explosive atmosphere detection in mining operations
• Confined space and underground environment monitoring
• Industrial safety compliance in classified locations
• Integrated control systems with redundant safety relays