M4

Features

  • Operates with or without a controller
  • Direct digital readout on backlit LCD
  • Available gases include
    % LEL, 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

Specifications

 

CH4 Methane
Part # 65-2619RK-CH4
Sensor Infrared
Measuring Ranges 0 - 100% LEL
Resolution 1% LEL
Lower Detectable Limit (LDL) 2% of full scale
Response Time (T-90) 30 Seconds or less
Accuracy ± 5% of reading or ± 2% of full scale
Life Expectancy 5 years plus 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 C UL US
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