RKI Instruments Remote Mount M2A-XL with Calibration Adaptor / Splash Guard

RKI, Remote Mount M2A-XL with Calibration Adaptor / Splash Guard: Class I, Division 1 Approved

As of 03/21/2024 - RKI Instruments NO LONGER OFFERS the M2A Series Gas Monitors. It has been replaced by the M2A-XL Series.
Basically, they are the same units except for the housing. The M2A-XL has a slightly taller, wider and deeper housing, but the internal electronics and operation are the same as the original M2A housing.

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The RKI M2A-XL is a state-of-the-art transmitter that can operate as an independent, stand-alone monitor or as part of an integrated system. The M2A-XL 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 housing of the M2A-XL does not need to be opened for zeroing or calibration, making it unnecessary to declassify the area for routine maintenance. It is designed so that a complete field calibration can be performed by one person. Sensor construction is rated Class I, Div. 1 Groups B, C, 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 in addition to a Modbus digital output. It also has two levels of alarms with relays, plus a fail alarm with relay. A digital display of the gas concentration, as well as alarm and status lights, can be viewed through the front window.

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 are designed for use in Class I, Div. 2 hazardous locations. Sensors available for NH3, AsH3, Cl2, ClO2, HCN, PH3, NO2 and SO2

The M2A-XL represents the latest leading edge technology in sensor / transmitters today.

Application
• Petrochemical plants
• Refineries
• Water & wastewater treatment plants
• Pulp & paper mills
• Manufacturing facilities
• Automotive
• Semiconductor plants
• Chemical plants

Note: Tubing sold separately. Recommended tubing size for standard sensors is 3/16” x 5/16”.
For IR XP sensors use 1/4” ID x 3/8” OD tubing. Not recommended for toxic gases.