LumaSense Technologies, Inc., An Advanced Energy Company

- Model E2T Quasar 2 - Continuous Duty Flare Monitoring and Detection Instruments



Advanced Energy's E2T Quasar 2 instruments provide continuous monitoring and detection of pilot flame and flared gases from flares. Flame detection up to 400 m. Detection of hydrocarbon and hydrogen flames. Pilot and flaring signal level mA output. Modular optoelectronic package for easy access and service.

The  E2T Quasar 2 is available in two models, the Quasar 2 M8100-EXP and Quasar 2 M8100-EXP Advanced. The base system provides basic flare pilot monitoring capabilities and the advanced system includes an intensity mA output. The advanced unit's setpoint feature can also be used for staged flares.

Target alignment is accomplished via the targeting port and signal intensity LED bar displays amplitude in combination with a stable heavy-duty, swivel M-4 mount. Custom electronics adapt to target movement, varying luminosity, and most climate conditions.

  • Install a reliable and accurate flare pilot monitoring system without service interruption
  • Use the high-resolution optical system and various spot sizes to position the system up to 1/4 mile (400 m) away from the monitored flare stack
  • Adjust the alarm delay circuit to eliminate false alarms from temporary loss of signal due to intermittent flames, adverse weather, and wind
  • Monitor pilot flame detection and flaring status signals with the intensity mA output (Advanced version only)

  • Configurable product to meet a wide range of client flare types and monitoring requirements
  • Five optics options with targeting port for alignment (available in 37.5:1, 60:1, 75:1, 150:1, and 300:1)
  • Status lights: green (flame) and red (no flame)
  • Housing is stainless steel (316 L), 114 mm tube diameter, IP 66
  • Additional features are available to meet a wide range of  flare types, monitoring requirements, and budgets

Measurement Specifications

  • Working Distance: 400 01(1320')
  • Flame Type: Infrared monitor sensitive to all flame including hydrogen
  • Field of View: Available in 37.5:1, 60:1, 75:1, 150:1, and 300:1
  • Targeting port for target alignment
  • Response Time: 10 ms
  • Sensitivity Adjustment: Automatic climate compensation and manual gain for easy system setup
  • Safety Integrity Level (SIL): Level 1
  • Status Lights: Green (Flame) and red (No Flame)


  • Output Signal: Quasar 2: 4 or 20 mA switched output (4 mA = flame and 20 mA -Quasar 2 Advanced: Additional 4 to 20 mA: = no flame)
  • Alarm Setpoint: Mechanical relay (Quasar 2 Advanced only):
  • Alarm Output Delay: 2 s to 2 min (Std):
  • Intensity Indicator: 20 LEDs bar:


  • Protection Class: NEMA4XIP66
  • Hazardous Classification: IECExExdbllBT4
  • ATEXII2GExdbllBT4
  • Canada and US certified explosion-proof housing
  • Ambient Temperature: -40 to 60°C with no cooling
  • Dimensions: 12 x 33 x 12 cm (4.7 x 12.8 x 4.7 in)
  • Weight: 12 kg (26.5 lb)
  • Mounting: M-4 heavy duty 360° swivel mount
  • Housing: Stainless steel (316 L), tube dia. 114 mm, IP 66


  • Power Requirements: 5 Watts, 24 VDC and 115 VAC / 230 VAC

Typical Applications

  • Elevated flares - e.g. steam assisted, air assisted, and gas assisted
  • Ground flares - e.g. burn pit flares and ground flare arrays
  • Off-shore flares
  • Staged flares

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