RKI-M2A-XLDescription

M2A-XL Series Explosion-Proof Gas Detector - DESCRIPTION
by RKI Instruments

The RKI M2A-XL is a state-of-the-art transmitter that can operate as an independent, stand-alone monitor or part of an integrated system. It connects with an analog or digital signal to virtually any controller, PLC, or DCS. Setup procedures are simplified with user-friendly push buttons and OLED menus. It utilizes a magnetic wand technique for performing non-intrusive calibration. The M2A-XL provides an automatic zero drift correction feature, which results in more stable readings and reduces the need for adjustments due to sensor aging.

The M2A-XL's housing can be closed for zeroing or calibration, making it unnecessary to declassify the area for routine maintenance. The design allows one person to perform a complete field calibration. Sensor construction is rated Class I, Div. 1 Groups B, C, and D for flammables, CO, H2S, O2, and CO2, and Class I, Div. 2 for all other toxics.

The transmitter provides a 4-20 mA output and a Modbus digital output. It also has two levels of alarms with relays and a fail alarm with a relay. The front window shows a digital display of the gas concentration alarm and status lights.
The toxic sensors are electrochemical type plug-in sensors, which provide high specificity, fast response, and long life. The plug-in design allows quick replacement in the field with no tools required. Toxic sensors, designed for use in Class I, Div. 2 hazardous locations, are available for NH3, AsH3, Cl2, ClO2, HCN, PH3, NO2, and SO2.

The M2A-XL represents the latest leading-edge technology in sensors and transmitters today.