VESDA VLI with VesdaNet


Approval: G 212155

The VESDA VLI, with VesdaNet implemented, is an early warning aspirating smoke detection (ASD) system, designed to protect industrial applications and harsh environments of up to 2000 m2.
The VLI detector combines a fail-safe intelligent filter (patent pending) with an advanced clean-air barrier for optics protection allowing the use of absolute detection and a long detection chamber life without the need for re-calibration.

The intelligent filter:
• reduces the level of pollution in the air sample before it enters the detection chamber, which dramatically extends the operational life of the detector in harsh and polluted environments.
• is fully monitored, providing consistent sensitivity over the entire operational life of the detector.

  • Suitable for Class 1 Division 2 applications
    - Groups A,B,C & D
  • Up to 4 inlet pipes
  • Five high intensity status LEDs for greater visibility
  • Robust absolute smoke detection
  • Intelligent Filter (patent pending)
  • Lint Trap to capture fibrous particulates
  • Secondary filter
  • Clean air barrier for optics protection
  • AutoLearn™ Smoke and Flow
  • Clean Air Zero™
  • Air-path monitoring
  • Five relays (Fire, Fault and 3 configurable)
  • Ultrasonic flow sensing

Additional Information:
Filter included in detector

Alarm current @ 24 V DC approx. 440 mA
Operating voltage 18 ... 30 V DC
Weight kg approx. 6 kg
Air humidity 10 ... 95 % (non-condensing)
Quiescent current @ 24 V DC approx. 415 mA
Type of protection IP66
Area to be monitored max. 2000 m²
Ambient temperature -10 °C ... 38 °C
Dimensions W: 426.5 mm H: 316.5 mm D: 180 mm
Contact load relay 2 A @ 30 V DC NO/NC contacts
Alarm sensitivity 0.005%–20% obs/m (0.0015%–6.25% obs/ft)
Cable termination 0.2–2.5 sq mm
Max. single pipe length 120 m
Aspirated air temperature -20 °C ... 60 °C
Specification EN 54-20, Class A, B, C
Max. total branched pipe length 360 m