VESDA VLC (LaserCOMPACT) Specifications

VESDA VLC (Laser Compact).

LaserCOMPACT Detector Specifications

Supply Voltage:

18 to 30VDC


Power Consumption @ 24VDC: Quiescent 225mA / 5.4W - In Alarm 245mA / 5.9W


Dimensions (WHD):

225mm x 225mm x 85mm (8 7/8" x 8 7/8" x 3 3/8")



1.9kg (4.2lbs)


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: 10-95% 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 VLC Pipe Products

Maximum area of coverage 800 sq.m (8000 sq.ft)


Maximum Pipe Length: 1 x 80m, 2 x 50m


EN54-20 Max. No. Of Holes (Class A / B / C):

30 / 36 / 40


Pipe Modelling Design Tool:



Pipe Size:

External Diameter 25mm (1in)

Internal Diameter I5-2I mm (9/16in - 7/8in)


Programmable Relays:

3 Relays, Contacts rated 2A @ 30VDC

Fire (NO)

Pre-Alarm (NO)

Alert / Fault (Maintenance & Isolate) (NC/NO)

Configurable as latching or non-latching


IP Rating:




Field replaceable and monitored (Order Part No. VSP-005)*

* Requires a programming device to reset filter parameters


Cable Access:

4 x 25 mm (1 in) knockouts in various positions


Cable Termination:

Screw terminals 0.2-2.5sq mm (30-12 A.G.)


Sensitivity Range:

0.005 to 20% obs/m (0.0015 to 6% obs/ft)


Alarm Threshold Setting Range:

Alert: 0.005 - 1.990% obs/m (0.0015 - 0.62 I 8% obs/ft)

Pre-Alarm: 0.010 - 1.995% obs/m (0.003 I - 0.6234% obs/ft)

Fire: 0.015 - 20.00% obs/m (0.0046 - 6.25% obs/ft)*

*Limited to 12% obs/m (4% obs/ft) in UL mode


Software Features:

Event Log: Up to 12,000 events stored on FIFO basis.

AutoLearn: Minimum 15 minutes, maximum 15 days.

Recommended minimum period 1 day. During AutoLearn thresholds are NOT changed from pre-set values.


Referencing (VLC-505VN Only):

Compensation for external ambient conditions


Two Fault Warning Levels:

Major and Minor fault


Maintenance Aids:

Filter & Flow monitoring.

Event reporting via VESDAnet or Event Log.



VLC-500RO - Direct Serial Connection (Order programming kit Part No. VSP-1315)

VLC-505VN - Hand Held Programmer (Order Part No. VHH-100)

VLC-505VN - PC Link HLI Interface (Order Part No. VHX-0200)

VESDA Wholesale

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