M2A Series by RKI Instruments
M2A Series by RKI Instruments
M2A Series by RKI Instruments
M2A Series by RKI Instruments

M2A Series by RKI Instruments


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  • $1,277.00
  • Será enviado después

Stand Alone Explosion Proof Transmitter

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, & 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)

Description

The RKI M2A 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 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 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 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, and SO2

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

Specifications

Explosion Proof Class I, Div. 2 , Groups B, C, D

Toxic Gas Transmitters Class I, Div. 2M2A Toxic Transmitter Sensor Ordering Information*Partial pressure sensor for helium (He) applications. Consult factory for details.

    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 65-2640RK
UL		 65-2641RK

 

UL

 C CSA US C UL 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
O2
Oxygen		 H2S
Hydrogen Sulfide		 CO
Carbon Monoxide		 Toxics See Chart Below 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
65-2648RK-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

Availability: Manufacturer Sourced. Usually available/ships in 3-7 Days.