VESDA VLF-500-00 VLF-500 LaserFOCUS Aspirating Smoke Detector (European Language Set, English Display Labels)

The Xtralis VESDA VLF-500-00 is a VESDA LaserFOCUS very early warning aspirating smoke detector for small, business-critical areas of up to 500 m². This version has the European language set with English display labels.

It draws air through a sampling pipe network, filters it and uses laser light scattering to detect very small amounts of smoke; status is shown on the detector display and signalled via relays or optional interface cards.

Key features

• Out-of-the-box installation and commissioning, with pre-engineered pipe network designs
• Patented ultrasonic airflow sensing, unaffected by air temperature, pressure or contamination
• Laser-based absolute smoke detection with clean air barrier optics protection
• Smoke Dial display and Instant Fault Finder behind a field service access door
• AutoLearn Smoke and AutoLearn Flow
• Programmable alarm thresholds (Alert, Action, Fire 1, Fire 2)
• Event log of up to 18,000 events

Technical specifications

• Supply: 24 VDC nominal (18–30 VDC); 410 mA nominal, 490 mA in alarm
• Coverage: up to 500 m² depending on local codes
• Pipe: 1 x 50 m (max. 24 holes) or 2 x 30 m branches (max. 12 holes per branch)
• Air inlet: 25 mm metric or 3/4 in IPS pipe
• Relays: 3 changeover (Fire 1, Action, Fault), rated 2 A at 30 VDC
• Alarm thresholds: Alert/Action 0.025–2.00 % obs/m; Fire 1/Fire 2 0.025–20.00 % obs/m
• Operating conditions: ambient 0–38 °C; sampled air -20 to 60 °C; 5–95% RH non-condensing
• IP rating: IP30
• Dimensions (WHD): 256 x 183 x 92 mm; weight: approx. 2 kg
• Approvals include EN 54-20 (Class A, B and C), LPCB, VdS, CE and UKCA