The RKI M2™ is a state-of-the-art transmitter that can operate as an independent, stand-alone system or as part of an integrated system. The M2 connects with an analog or digital signal to virtually any controller, PLC, or DCS. Setup procedures are simplified with user friendly push buttons and LCD menus. It utilizes a magnetic wand technique for performing non-intrusive calibration. The M2 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 M2 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, SO2, PH3, ASH3, and HCN.
The M2 represents the latest leading edge technology in sensor / transmitters today.
Features
- Operates with or without a controller
- Direct digital readout on backlit LCD
-
Available gases include
H2S, CO, PPM HC, & CO2
- Toxic gases include NH3, SO2, HCN, and more
- 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 & LCD menus
- Long-life sensors (2 + years typical)
Applications
- Petrochemical plants
- Refineries
- Offshore drilling platforms
- Water & wastewater treatment plants
- Offshore oil rigs
- Pulp & paper mills
- Gas, telephone, & electric utilities
- Parking garages
- Manufacturing facilities
- Steel
- Automotive
M2 Specifications
|
Non Explosion Proof
|
O2
Oxygen
|
H2S
Hydrogen Sulfide
|
CO
Carbon Monoxide
|
| Part# |
65-2613RK *65-2614RK |
65-2632RK |
65-2633RK |
| Sensors |
Galvanic cell |
Electrochemical |
| Measuring Ranges |
0-25% Vol. |
0-100 ppm |
0-300 ppm |
| Resolution |
0.1% Vol. |
1 ppm |
| Lower Detectable Limit (LDL) |
0.1% Vol. |
2% of full scale |
| Response Time (T-90) |
35 Seconds or less |
| Life Expectancy |
2 to 3 years with normal service |
| Accuracy |
± 0.5% O2 |
± 5% of reading or
± 2 ppm H2S |
± 5% of reading or
± 5 ppm CO |
|
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 display with backlighting. 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 122°F
-20°C to 50°C |
| Relative Humidity |
5 - 95% RH non-condensing |
| Location |
Indoor or outdoor. |
| Operating Voltage |
19 VDC - 30 VDC, 12 VDC versions available |
|
Outputs
|
| Analog |
Linear 4-20 mA signal, into 500 ohms impedance max, corresponding to 0 - full scale |
| Digital |
Modbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud |
| Controllers |
Compatible with all RKI Beacon controllers, as well as most DCS / PLC systems: Beacon 110, Beacon 200, Beacon 410, Beacon 800, and Pioneer 4W and Pioneer 16R |
| Warranty |
One year materials and workmanship |
|
Explosion Proof Sensors
|
O2
Oxygen
|
H2S
Hydrogen Sulfide
|
CO
Carbon Monoxide
|
| Part# |
65-2613RK-05 |
65-2615RK-05 |
65-2616RK-05 |
| Sensors |
Galvanic cell |
Electrochemical |
| Measuring Ranges |
0 - 25.0% Vol. |
0 - 100 ppm |
0 - 300 ppm |
| Resolution |
0.1% Vol. |
1 ppm |
| Lower Detectable Limit (LDL) |
0.1% Vol. |
2% of full scale |
| Response Time (T-90) |
35 Seconds or less |
| Accuracy |
± 0.5% O2 |
± 5% of reading or
± 2 ppm H2S |
± 5% of reading or
± 5 ppm CO |
| Life Expectancy |
2 to 3 years with normal service |
| 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 display with backlighting. 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 |
-4°F to 122°F
-20°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 |
19 VDC - 30 VDC, 12 VOC versions available |
|
Outputs
|
| Analog |
4-20 mA signal, into 500 ohms impedance max, corresponding to 0 - full scale |
| Digital |
Modbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud |
| Approvals |
CSA NRTL |
| Controllers |
Compatible with all RKI Beacon controllers, as well as most DCS / PLC systems:
Beacon 110, Beacon 200, Beacon 410, Beacon 800, and Pioneer 4W and Pioneer 16R |
| Warranty |
One year material and workmanship |
|
Non Explosion Proof Toxic Assemblies
|
|
Toxic
Gas
|
Arsine (ASH3)
|
Ammonia (NH3)
|
Phosphine (PH3)
|
Hydrogen Cyanide (HCN)
|
Sulfur Dioxide (SO2)
|
Part#
With J-Box |
65-2618RK-ASH3 |
65-2618RK-NH3 |
65-2618RK-PH3 |
65-2618RK-HCN |
65-2618RK-SO2 |
| Sensors |
Electro-chemical |
| Measuring Ranges |
0 - 1.5 ppm |
0 - 75.0 ppm |
0 - 1.00 ppm |
0 - 15.0 ppm |
0 - 6.00 ppm |
| Resolution |
0.01 ppm |
0.1 ppm |
0.01 ppm |
0.1 ppm |
0.01 ppm |
| Lower Detectable Limit (LDL) |
2% of full scale |
| Response Time (T-90) |
60 Seconds or less |
| Life Expectancy |
2 to 3 years with normal service |
| Accuracy |
± 10% of reading or
± 5% 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 display with backlighting. 8 characters per line;
2 lines for gas concentration readout, plus user-friendly calibration and setup |
| Sensor Rating |
Non explosion proof construction, Class I, Div. 2, Groups B, C, D |
| 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 |
14°F to 104°F
-10°C to 40°C |
| Relative Humidity |
5 - 95% RH non-condensing |
| Location |
Indoor or outdoor. |
| Operating Voltage |
19 VDC - 30 VDC, 12 VDC versions available |
|
Outputs
|
| Analog |
Linear 4-20 mA signal, into 500 ohms impedance max, corresponding to 0 - full scale |
| Digital |
Modbus RTU output standard, fully configurable, 2-wire RS-485, 1200 to 19.2k baud |
| Controllers |
Compatible with all RKI Beacon controllers, as well as most DCS / PLC systems: Beacon 110, Beacon 200, Beacon 410, Beacon 800, and Pioneer 4W and Pioneer 16R |
| Warranty |
One year materials and workmanship |
|