Vesda Laser Focus VLF-500-02 Smoke Detector

Vesda Laser Focus Smoke Detector Tested VLF-500-02

The Vesda Laser Focus VLF-500-02 is a highly reliable, ultra-early warning aspirating smoke detection (ASD) system explicitly engineered to protect small, business-critical spaces up to 500 m² (5,380 sq. ft). By continuously drawing air samples through a dedicated pipe network, the unit filters out debris before routing the air into a laser-based detection chamber. Utilizing advanced light-scattering technology, it identifies minute concentrations of smoke long before traditional spot detectors can react. Built for robust commercial, industrial, and marine machinery spaces, the VLF-500-02 features patented ultrasonic airflow sensing, automated commissioning tools (AutoLearn™), and comprehensive diagnostic logging.

Model Details

• Manufacturer: Xtralis / Vesda
• Model Series: LaserFocus (VLF)
• MPN (Manufacturer Part Number): VLF-500-02

VLF-500 Datasheet

Download PDF

Main Features

1. Laser-Based Absolute Detection: Utilizes high-sensitivity laser light-scattering principles to provide absolute smoke obscuration levels consistently and without calibration drift.
2. Ultrasonic Air Flow Sensing: Combines direct ultrasonic flow measurement that is completely immune to variations in ambient air temperature, barometric pressure and frequent dust contamination.
3. Out-of-the-Box Commissioning: Includes AutoLearn™ Smoke and AutoLearn™ Flow protocols for simple commissioning and threshold adjustments without the need for external programming tools or software interfaces.
4. Instant Fault Finder™: Onboard service door interface isolates individual system or pipe network issues locally for speedy diagnostic reporting.
5. Extensive Non-Volatile Event Logging: Logs up to 18,000 distinct events with time-and-date stamps in separate logs for smoke levels, airflow rates, and system problems.

Applications

• Marine engine control rooms, switchboards and navigation equipment spaces
• Cellular base stations and telecommunication switches
• Medium to small server rooms and mission essential IT enclosures
• Secure storage facilities and museum archives with irreplaceable artifacts
• Clean rooms and control cabinets for high-value automated production lines

Frequently Asked Questions

What is the primary difference between the Vesda VLF-500-02 and standard point smoke detectors?

Unlike spot detectors that rely on smoke reaching a ceiling sensor passively, the VLF-500-02 actively draws air through an engineered pipe network using an internal aspirator fan. Its laser chamber can detect obscuration levels as low as 0.025, providing much earlier warning to prevent catastrophic damage.

Can the VLF-500-02 be configured without using a PC laptop?

Yes. The unit features complete out-of-the-box operation capabilities. Using the onboard AutoLearn™ function, the detector automatically evaluates normal environmental background levels and establishes optimal alarm thresholds within a 15-minute to 14-day learning window.

How does ultrasonic flow sensing work on this model?

Patented ultrasonic sensors measure the exact transit velocity of air moving through the internal manifold. Because it measures true volumetric speed rather than pressure drops, it remains entirely immune to variations in ambient air temperature and barometric pressure swings.

What happens to historical logs if the unit loses primary 24V DC power?

All historical data—including the 18,000-event logs for smoke levels, flow rates, and faults—are saved on non-volatile flash memory. System logs remain fully intact and retrievable upon power restoration or through direct service connection.