VESDA VLF (Laser Focus).
LaserFOCUS Detector Specifications
Supply Voltage:
18 to 30VDC
Power Consumption @ 24VDC:
VLF-250: Quiescent 220mA - In Alarm 295mA
VLF-500: Quiescent 410mA - In Alarm 490mA
Dimensions (WHD):
255mm x 185mm x 90mm (9 7/8" x 7 1/8" x 3 1/2")
Weight:
Approx 2kg (4.4lbs)
Operating Conditions:
Detector Ambient: 0°C to 39°C (32° to 103°F)
Tested: -10° to 55°C (14° to 131°F)
Sampled Air: -20° to 60°C (-4° to 140°F)
Humidity: 5-95% RH, non-condensing
Please consult Ventec Systems Ltd for operation outside these parameters or where sampled air is continually above 0.05% obs/m (0.015% obs/ft) under normal operating conditions.
Sampling Pipe Network: View VLF Pipe Products
VLF-250: Maximum area of coverage 250 sq.m (2500 sq.ft)
VLF-500: Maximum area of coverage 500 sq.m (5000 sq.ft)
Maximum Pipe Length:
VLF-250: 1 x 25m, 2 x 15m
VLF-500: 1 x 50m, 2 x 30m
EN54-20 Max. No. Of Holes (Class A / B / C):
VLF-250: 12 / 12 / 12
VLF-500: 30 / 30 / 30
Pipe Modelling Design Tool:
ASPIRE™
Pipe Size:
External Diameter 25mm (1in)
Internal Diameter I5-2I mm (9/16in - 7/8in)
Programmable Relays:
3 Changeover Relays (Fire 1, Action, Fault), Contacts rated 2A @ 30VDC
IP Rating:
IP30
Filtration:
Field replaceable and monitored (Order Part No. VSP-005)
Cable Access:
3 x 25 mm (1 in) knockouts in various positions
Cable Termination:
Screw terminals 0.2-2.5sq mm (30-12 A.G.)
Sensitivity Range:
0.025 to 20% obs/m (0.0015 to 6% obs/ft)
Alarm Threshold Setting Range:
Alert / Action: 0.025 - 2.0% obs/m (0.008 - 0.625% obs/ft)
Fire 1 / Fire 2: 0.025 - 20.00% obs/m (0.008 - 6.25% obs/ft)
Display
- 4 Alarm State Indicators
- Smoke Level Indicator
- Fault & Disabled Indicators
- Instant Fault Finder
- Reset, Disable & Test Controls
- Smoke & Flow Autolearn Controls
Software Features:
Event Log: Up to 18,000 events stored on FIFO basis.
AutoLearn Smoke & Flow: Minimum 15 minutes, maximum 15 days.
Recommended minimum period 1 day. During AutoLearn thresholds are NOT changed from pre-set values.
Programming:
Direct Serial Connection (Order programming kit Part No. VSP-1315)
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