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Xtralis VESDA VLC

VLC-500 and VLC-505
Features
• Absolute smoke detection • Wide sensitivity range • Single pipe inlet • Five (5) status LEDs • Referencing • VESDAnet communication (VN) • Clean air barrier optics protection • Three (3) Alarm Levels • Three (3) Programmable Relays • Air flow monitoring • Optional remote display and relay capability • Simple mounting design • AutoLearn™Introduction
The Xtralis VESDA VLC detector has been specifically designed to provide all the benefits of aspirating smoke detection, including very early warning, in single environment small areas and where space is a premium. The VLC combines the well-proven Xtralis VESDA VLP detection technology with a modified aspirator design, and incorporates them into a compact enclosure with a simplifieddisplay.

Approvals/Listings*
• UL • ULC • FM • LPCB • VdS • CFE • ActivFire • AFNOR • VNIIPO • CE - EMC and CPD • EN 54-20 - Class A (30 holes / 0.05% obs/m) - Class B (36 holes / 0.09% obs/m) - Class C (40 holes / 0.165% obs/m) Classification of any configuration is determined using ASPIRE2.
Regional approvals listings and regulatory compliance vary between Xtralis VESDA product models. Referto www.xtralis.com for the latest product approvals matrix.

Two variants and a remote display option
The VLC is available in two versions, one that interfaces via relays only (RO) and one that interfaces via relays and VESDAnet (VN). The VN version is compatible with the remote Display Module, which allows the current status of the detector to be reported in the most convenient location. Theremote Display Module has 7 remote relays to support any combination of signalling that may be demanded by the application. The VN version allows several detectors to be linked together on VESDAnet thereby allowing one to act as a reference detector for other Xtralis VESDA detectors.

Description
The VLC is made up of two parts: the main enclosure and the front cover. The main enclosure housesall the key components of the detector. All non-serviceable items like the main processor board and detector chamber are mounted away from the general access area, protecting them during the installation and service process. The front cover includes: • • 5 LEDs: Fire, Pre-Alarm/Alert, Fault, OK, Reset/Isolate Reset/Isolate Push Button (press to reset, press and hold to isolate)

*Special versionsof the products are available which carry Marine Approvals. Please refer to separate data sheet (doc. no. 11655).

Xtralis VESDA VLC
How it works
Air is continually drawn through a simple pipe network to a central detector by a high efficiency aspirator. Air entering the unit passes a flow sensor before a sample is passed through a dual-stage dust filter (the majority of air is exhausted fromthe detector and back-vented to the protected area). The first stage removes dust and dirt from the air sample before it enters the chamber for smoke detection. The second, ultra-fine stage provides a clean air supply to be used inside the detection chamber to form clean air barriers, which protect the optical surfaces from contamination. The detection chamber uses a stable, highly efficientlaser light source and unique sensor configuration to achieve the optimum response to a wide range of smoke types. When smoke passes through the detection chamber it creates light scatter which is detected by the very sensitive sensor circuitry. The status of the detector, all alarms, service and fault events, are monitored and logged with time and date stamps. Status reporting can be transmitted viasimple relay connections or across the advanced VESDAnet communications network (VN version only). VLC Termination Card (VN) A
B
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VLC-500 and VLC-505
Specifications
Supply voltage:
18 to 30 VDC

Power consumption:

5.4 W quiescent, 5.9 W with alarm 225 mA quiescent, 245 mA with alarm 1.6 A

Current consumption: Fuse rating: Dimensions (WHD): Weight:...