Part Number: 67-8022-100

B-Guard Millennium LEL

Often hydrocarbons can be complex to detect with various cross sensitivity issues. The B-Guard Millennium LEL has simplified this issue by utilising a reliable single source dual wavelength Infra-Red beam.

List of Benefits

  • CSA & FM Performance Approved
  • Infrared sensing technology
  • Virtually maintenance free
  • Low cost of ownership, over five years operating life
  • Immune to poisoning and etching
  • Designed for harsh environments
  • Explosion proof
  • Compact & lightweight
  • Fast response time
  • Smart calibration
  • Self-compensating optical bench
  • No moving parts
  • Heated optical chamber
  • Low power consumption
  • Operates in constant hydrocarbon background
  • Operates in anaerobic atmospheres
  • Fault indications for all failure states
  • Routine calibrations are not required
  • 4 to 20 mA output
  • 0 to 100% LFL detection range
  • Can be coupled with SEC 2000 transmitter for network applications.
  • RS-485 communication link available
  • Digital Display option available


GTA Millenium Series Infrared hydrocarbon detector is a single source dual wavelength instrument. The sensing and reference elements are self-compensating for optical integrity and other signal inhibitors. The industry standard 4-20mA analog output provides remote alarm, fault and calibration signals.


The GTA Millenium Series hydrocarbon detectors are designed to be used in the same applications where catalytic bead sensors have been applied.

  • Refineries
  • Gas turbines
  • Drilling and production platforms
  • Chemical plants
  • Fuel loading facilities
  • Compressor stations
  • Oil well logging
  • Wastewater treatment facilities
  • LNG/LPG processing and storage facilities
  • Transportation facilities
SpecificationDetail Description
Operating Voltage24VDC (18 – 32VDC)
Current Draw210mA avg, 400mA peak
Power Consumption5 W Max.
Analog Output4 – 20 mA (sourced)
Range0 – 100% LEL
GasesMethane, Propane, and Butane.
Other hydrocarbon gases are available
Accuracy± 3% 0 to 50% LFL, ± 5% 51 to 100% LFL
Response TimeT50 < 5 seconds, T90 < 10 seconds
Temperature Rating- 40C° to + 70°C, - 40F° to + 158°F
Humidity0-99% (non-condensing)
Housing ConstructionNickel-plated aluminum and stainless steel. Optional stainless steel model.
ApprovalsCSA, FM Performance Approved
ClassificationClass 1, Div. 1, Groups B, C & D
Mounting3/4" NPT
Weight2 lbs. (0.9 kg.)

Share this