VESDA VLC-500 and VLC-505 LaserCOMPACT

Introduction
The 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 VESDA VLP detection technology with a modified aspirator design, and incorporates them into a compact enclosure with a simplified display.
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. The remote 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 VESDA detectors.
Description
The VLC is made up of two parts: the main enclosure and the front cover. The main enclosure houses all 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)
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™
Approvals/Listings
- UL
- ULC
- FM
- CCC
- ActivFire
- CE
- LPCB
- VdS
- NF
- VNIIPO
- 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 VESDA product models. Refer to www.xtralis.com for the latest product approvals matrix.
VLC Termination Card (VN)

Terminal A
- Bias (-) (GND)
- Reset (-)
- Reset (-)
- Bias (+)
- LED ) (GND)
- LED (+)
- FIRE (NO)
- FIRE (C)
- PRE-ALARM (NO)
- PRE-ALARM (C)
- FAULT (NO)
- FAULT (C)
- FAULT (NC)
TerminalB
- Shield
- VESDAnet-A (-)
- VESDAnet-A (+)
- Shield
- VESDAnet-B (-)
- VESDAnet-B (+)
- Power (-)
- Power (+)
- Power (-)
- Power (+)
VLC Termination Card (RO)

Terminal A
- FIRE (NO)
- FIRE (C)
- PRE-ALARM (NO)
- PRE-ALARM (C)
- FAULT (NO)
- FAULT (C)
- FAULT (NC)
Terminal B
- Bias (-) (GND)
- Reset (-)
- Reset (+)
- Bias (+)
- LED (-) (GND)
- LED (+)
- Power (-)
- Power (+)
- Power (-)
- Power (+)
Specifications
Supply voltage:
18 to 30 VDC
Power consumption:
5.4 W quiescent, 5.9 W with alarm
Current consumption:
225 mA quiescent, 245 mA with alarm
Fuse rating:
1.6 A
Dimensions (WHD):
225 mm x 225 mm x 85 mm (8 7/8” x 8 7/8”x 3 3/8”)
Weight:
1.9 kg (4.2 lbs.)
Operating conditions:
- Ambient: 0°C to 39°C (32°F to 103°F) *
- Tested: -10°C to 55°C (14°F to 131°F)
- Sampled Air: -20°C to 60°C (-4°F to 140°F)
- Humidity: 10% to 95% RH, non-condensing
Storage conditions (non-operational):
- Humidity: Dry (<95%)
- Temperature: 0° to 85° C (32°F to 185°F)
- Must not be exposed to sunlight or other radiation sources
Sampling network:
Maximum area of coverage
- Code compliant: 800 m² (8000 sq.ft)
- Maximum (120sec transport time): 2,370 m² (25,500 sq.ft).
Local code requirements shall take precedence
Maximum pipe lengths:
1 x 80 m (260ft), 2 x 50 m (164ft)
Computer design tool:
ASPIRE2™
Pipe:
- Internal Diameter 15 mm–21 mm (9/16”–7/8”)
- External Diameter 25 mm (1”)
Relays:
- 3 Relays rated 2 A @ 30 VDC
- Fire (NO)
- Pre-Alarm (NO)
- Alert/Fault (Maintenance & Isolate) (NC/NO)
- Configurable as latching or non-latching
IP rating:
IP30
Cable access:
4 x 25 mm (1”) cable entries
Cable termination:
Screw Terminal blocks 0.2–2.5 sq mm (30–12 AWG)
Alarm sensitivity range:
0.005% to 20% obs/m (0.0015% to 6.25% obs/ft)
Threshold setting range:
- Alert: 0.005%–1.990% obs/m (0.0015%–0.6218% obs/ft)
- Pre-Alarm: 0.010%–1.995% obs/m (0.0031%–0.6234% obs/ft)
- Fire: 0.015%–20.00% obs/m (0.0046%–6.25% obs/ft)*
Software features:
Event log: Up to 12,000 events stored in FIFO format Smoke level, user actions, alarms and faults with time and date stamp AutoLearn: Minimum 15 minutes, maximum 15 days. Recommended minimum 14 days. During AutoLearn thresholds are NOT changed from pre-set values.
Configurable general input (24 VDC):
Standby, Mains OK or Reset/Isolate
Product UL listed for use from 0°C to 38°C (32°F to 104°F)
Ordering Information
Product/Part number
- VESDA VLC – VESDAnet VLC-505
- VESDA VLC – Relays Only VLC-500
- Remote Display (relays) VRT-J00
- Remote Display (no relays) VRT-K00
- Remote Relays (no display) VRT-500



















