| | 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 ppm CH4 | 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 |