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M2A Series by RKI Instruments RKI Instruments

$ 319,25

Style

Clear

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#

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

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.

Style	LEL – H2 Specific, Hydrogen Sulfide (H2S), Hydrocarbons (HC), LEL, Oxygen (O2), Carbon Monoxide (CO), CH4 (0-100% Vol.), CH4 (0-100% LEL), CO2 (0-5.0% Vol.), CO2 (0-50% Vol.), CO2 (0-100% Vol.), CO2 (0-5000 ppm)

Professional packing and fast shipping

Because of our long-standing partnership in a long-standing partnership with UPS, FedEx, DHL and many other top global carriers we can offer a variety of shipping options. Our warehouse personnel will pack each item according to our strict specifications. Before shipping your items will be thoroughly examined and secured. We deliver to thousands of clients each day across multiple countries. This is a testament to our dedication to being the largest online retailer worldwide. We have distribution centers and warehouses in Europe and in the USA.

Note: Orders containing more than one item will be assigned a different processing period for each item.

Before shipping before shipping, we'll conduct a thorough inspection of the items you've ordered. Currently, most orders are shipped within 48 hours. Delivery is expected to take between three and seven days.

Returns

Due to multiple parties which include the factory as well as the warehouse, we are unable to completely manage our stock. The actual inventory can change at any moment. Be aware that it is possible for your order to run out of stock even after you have made the order.

Our policy lasts thirty days. However, if the 30 days have elapsed from the date you purchased the item, we cannot give you a refund or exchange.

The item you purchase must be in its original packaging and not be used. The item must be in its original packaging.

M2A Series by RKI Instruments RKI Instruments

Stand Alone Explosion Proof Transmitter

Features

Description

Specifications

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

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