VESDA by Xtralis VESDA VLI Product Guide
www.xtralis.com 3
1 Introduction
The VESDA VLI is an aspirating smoke detector (ASD) that provides very early warning of fire conditions by
drawing air samples through an air sampling pipe network.
The VLI detector is especially designed to operate in industrial applications under harsh and dirty
environments. It incorporates features that specifically address the common challenges of industrial
installations, including:
l high background levels of airborne particles
l the need for environmental enclosures
l detector longevity
l the need for on-site maintenance
VESDAVLI
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DISABLED
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Figure 1-1: VESDA VLI Aspirating Smoke Detector
The detector easily interfaces with fire warning and fire suppression release systems, and can be integrated
into a building management system (BMS).
1.1 Features
The VLI detector contains the following features:
l Area coverage up to 2000m² (21,500ft²)
l Up to four inlet pipes
l Total pipe length of 360m (1200ft)
l Five high intensity status LEDs
l Robust absolute smoke detection
l Patented Intelligent Filter
l Inertial separator (sub sampling probe)
l Lint trap to capture fibrous particles
l Secondary Foam Filter
l Clean air barrier for optics protection
l Referencing (on VESDAnet enabled model)
l AutoLearn™ Smoke and Flow
l Clean Air Zero™
l Air-path monitoring
l Five relays (fire, fault and three configurable) configurable as latching or non-latching
l One (standard) or two GPIs (VESDAnet enabled model)
l Ultrasonic flow sensing
l Xtralis VSC, Xtralis VSM4 and ASPIRE2 software support
l IP54 enclosure
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