M2A DETECTOR HEAD - CALL FOR PRICING

Features

• Operates with or without a controller
• Direct digital readout with OLED cold temperature display
• Available gases include
  ◦ LEL, O2, H2S, CO, CO2, and 100% Vol CH4
  ◦ Toxic gases include NH3, AsH3, Cl2, ClO2, HCN, NO2, & SO2
• Infrared sensor for combustibles and CO2
• 4-20 mA & digital Modbus outputs standard
• 2 fully programmable alarm relays & fail relay
• Non-intrusive calibration via magnetic wand
• Explosion proof construction
• Patented water repellent sensor cover
• User friendly setup, push buttons & OLED menus
• Long-life sensors (2 + years typical)

The original M2A has been replaced with the M2A-XL Stand Alone Transmitter. The M2A-XL has an alternate housing, which is slightly taller, wider and deeper, but the electronics and operation are the same as the original M2A housing. Since this housing is deeper than the original M2A, longer standoffs are required inside to properly bring the display up to the transmitter’s window.

Changes related to using the new, alternate housing are outlined below:

• M2A-XL is the new model name for the original M2As installed in the larger housing. The new model name is visible on the label around the display.
• The Manual is different. The dimensional drawings have been revised to reflect the larger enclosure.
• New part numbers are utilized for the M2A-XL. The letters “XL” are replacing the “RK” within the former M2A part #’s.
• Inside the M2A-XL the electronics and operation are exactly the same as the original M2A.
  The only difference is the larger enclosure.
• The original M2A has been discontinued. As a result, the original M2A sections of the current price book were removed and replaced with the M2A-XL price list sections.

For more information and ordering, please see M2A-XL Stand Alone Transmitter

Related Services

Fixed Systems Turnkey Solutions

• Design, Consultations, and Engineering
• Installation
• Start-up
• Training
• System Maintenance

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

Specifications - Explosion Proof Transmitters (Class I, Div. 1 , Groups B, C, D)

		Combustibles	LEL H2 Specific	O2 Oxygen	H2S Hydrogen Sulfide	CO Carbon Monoxide	CH4 Methane	HC Hydrocarbons	CO2 Carbon Dioxide
LEL	PPM
Part#	UL	65-2640RK	65-2647RK	65-2641RK	65-2643RK-05	65-2645RK-05	65-2646RK-05	65-2649RK-CH4   65-2658RK-CH4	65-2649RK-HC	65-2660RK-02   65-2660RK-03 65-2660RK-05 65-2660RK-10
CSA	65-2640RK-05	65-2647RK-05	65-2641RK-05
Sensors	Catalytic	Galvanic cell	Electrochemical	Infrared
Measuring Ranges	0 – 100% LEL	0 – 9000 ppmCH4	0 – 100% LEL	0 – 25.0% Vol.	0 – 100 ppm	0 – 300 ppm	0 – 100% LEL   0 – 100% Vol.	0 – 100% LEL	-02	0 – 5000 ppm
-03   -05	0 – 5% Vol.   0 – 50% Vol.
-10	0 – 100% Vol.
Resolution	1% LEL	20 ppm	1% LEL	0.1% Vol.	1 ppm	1% LEL / 1% Vol.	20 ppm / 0.01% Vol / 0.1% Vol. / 1% Vol.
Lower Detectable Limit (LDL)	2% of full scale	0.1% Vol.	2% of full scale
Max Current Draw (24VDC)	160 mA with alarm 1 and alarm 2 active and all relays energized	125 mA with alarm 1 and alarm 2   active and all relays energized	160 mA with alarm 1 and alarm 2   active and all relays energized
Response Time (T-90)	35 Seconds or less	90 Seconds or less	60 Seconds or less	90 Seconds or less	30 Seconds or less
Life Expectancy	2 to 3 years with normal service	3 to 5 years with normal service	2 to 3 years with normal service	5 years plus with normal service
Accuracy (which ever is greater)	± 5% of reading or ± 2% of full scale	± 0.5% Vol. O2	± 5% of reading or ± 2 ppm H2S	± 5% of reading or ± 5 ppm CO	± 5% of reading or ± 2 % of full scale
Weather Resistant	Patented water repellent sensor coating
Alarms
Alarm Settings	Two fully programmable alarm set points, increasing / decreasing, latching / self-resetting, on delays, off delays, normally energized or de-energized
Alarm Indication	Visual LEDs. Alarm 1, Amber; Alarm 2, Red; Fail, Red
Relays	5 amp form ‘C’ contacts for alarm 1, alarm 2, and fail
Physical
Dimensions	Height: 8.5” (215 mm), Width: 5.2” (132 mm), Depth: 4.5” (114 mm)
Display	Alphanumeric OLED display. 8 characters per line; 2 lines for gas concentration readout, plus user-friendly calibration and setup
Enclosure	Explosion proof for Class I, Div 1, Groups B, C, D.
Enclosure Rating	NEMA 4X, explosion proof, watertight, cast aluminum with o-ring seal and epoxy powder coating
Controls	Magnet used for calibration functions. Calibrates without opening the housing. Internal push-button controls also available for calibration and setup
Operating Environment
Operating Temperature	-40°F to 167°F   -40°C to 75°C	-4°F to 113°F   -20°C to 45°C	-40°F to 104°F   -40°C to 40°C	23°F to 104°F   -5°C to 40°C	-40°F to 122°F   -40°C to 50°C
Relative Humidity	5 – 95% RH non-condensing
Location	Indoor or outdoor. Explosion proof for Class I, Div. 1, Groups B, C, D.
Operating Voltage	10 VDC – 30 VDC
Outputs
Analog	Linear 4-20 mA signal, into 1000 ohms impedance max (24DC), 0 – 500 ohms max (12VDC) corresponding to 0 – full scale
Digital	Modbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud
Approvals			C CSA US
65-2640RK-05 C CSA US	65-2641RK-05 C CSA US
Controllers	Beacon 110, Beacon 200, Beacon 410A, Beacon 800 as well as most DCS / PLC systems
Warranty	One year material and workmanship

Specifications - Toxic Gas Transmitters (Class I, Div. 2)

 

	O2 Oxygen	H2S Hydrogen Sulfide	CO Carbon Monoxide	Toxics	CO2 Carbon Dioxide
Part#	65-2666RK   *65-2644RK	65-2662RK	65-2663RK	See Chart Below	65-2661RK-02   65-2661RK-03 65-2661RK-05 65-2661RK-10
Sensors	Galvanic cell	Electrochemical	Infrared
Measuring Ranges	0-25% Vol.	0-100 ppm	0-300 ppm	See Chart Below	-02	0 – 5000 ppm
-03   -05	0 – 5% Vol.   0 – 50% Vol.
-10	0 – 100% Vol.
Resolution	0.1% Vol.	1 ppm	See Chart Below	20 ppm / 0.01% Vol. / 0.1% Vol. / 1%Vol.
Lower Detectable Limit (LDL)	0.1% Vol.	2% of full scale
Response Time (T-90)	35 Seconds or less	60 Seconds or less	30 Seconds or less
Max Current Draw (24VDC)	125 mA with alarm 1 and alarm 2 active and all relays energized	160 mA with alarm 1 and alarm 2 active and all relays energized
Life Expectancy	2 to 3 years with normal service	5 years plus
Accuracy (which ever is greater)	± 0.5% Vol. O2	± 5% of reading or ± 2 ppm H2S	± 5% of reading or ± 5 ppm CO	± 10% of reading or ± 5% of full scale	± 5% of reading or ± 2% of full scale
Alarms
Alarm Settings	Two fully programmable alarm set points, increasing / decreasing, latching / self-resetting, on delays, off delays, normally energized or de-energized,
Alarm Indication	Visual LEDs. Alarm 1=Amber; Alarm 2=Red; Fail=Red
Relays	5 Amp form ‘C’ contacts for alarm 1, alarm 2, and fail
Physical
Dimensions	Height: 8.5” (215 mm), Width: 5.2” (132 mm), Depth: 4.5” (114 mm)
Display	Alphanumeric OLED display. 8 characters per line; 2 lines for gas concentration readout, plus user-friendly calibration and setup
Sensor Rating	Non explosion proof construction, designed for Class I, Div. 2, Groups B, C, D (no certification)
Housing J-Box	NEMA 4X, explosion proof, watertight, cast aluminum with o-ring seal and epoxy powder coating
Controls	Magnet used for calibration functions. Calibrates without opening the housing. Internal push-button controls also available for calibration and setup
Sensor	Aluminum / Plastic (non explosion proof)
Operating Environment
Operating Temperature	-4°F to 113°F   -20°C to 45°C	-40°F to 104°F   -40°C to 40°C	23°F to 104°F   -5°C to 40°C	14°F to 104°F   -10°C to 40°C	-40°F to 122°F   -40°C to 50°C
Relative Humidity	5 – 95% RH non-condensing
Location	Indoor or outdoor
Operating Voltage	10 VDC – 30 VDC
Outputs
Analog	Linear 4-20 mA signal, into 1000 ohms impedance max (24DC), 0 – 500 ohms max (12VDC) corresponding to 0 – full scale
Digital	Modbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud
Controllers	Beacon 110, Beacon 200, Beacon 410A, Beacon 800 as well as most DCS / PLC systems
Warranty	One year materials and workmanship
	Part Number With J-Box	Gas	Range	Resolution	Sensor Type
65-2670RK-NH3-75	Ammonia (NH3)	0 – 75.0 ppm	0.1 ppm	CT-7
65-2670-NH3-1	Ammonia (NH3)	0 – 100 ppm	1 ppm	CT-7
65-2670-NH3-2	Ammonia (NH3)	0 – 200 ppm	1 ppm	CT-7
65-2670-NH3-5	Ammonia (NH3)	0 – 500 ppm	1 ppm	CT-7
65-2670-NO2	Nitrogen Dioxide (NO2)	0 – 15.0 ppm	1 ppm	CT-7
65-2648RK-AsH3	Arsine (AsH3)	0 – 1.50 ppm	0.1 ppm	ESM -01
65-2670RK-CL2-3	Chlorine (Cl2)	0 – 3.00 ppm	0.01 ppm	CT-7
65-2670RK-CL2-10	Chlorine (Cl2)	0 – 10.0 ppm	0.1 ppm	CT-7
65-2670RK-CLO2	Chlorine Dioxide (ClO2)	0 – 1.00 ppm	0.01 ppm	CT-7
65-2648RK-HCN	Hydrogen Cyanide (HCN)	0 – 15.0 ppm	0.1 ppm	ESM -01
65-2648RK-PH3	Phosphine (PH3)	0 – 1.00 ppm	0.01 ppm	ESM -01
65-2648RK-SO2	Sulfur Dioxide (SO2)	0 – 6.00 ppm	0.01 ppm	ESM -01

M2A Literature
Product Datasheet	Operating Manuals
M2A Datasheet	M2A Operator’s Manual
Spanish M2A Datasheet	Spanish M2A Manual