Brand: Xtralis, Model: VLF Series

Brand Origin: Australia

PRICE: CALL @ 01720-566000


Out-of-the-Box Installation and Commissioning, Ultrasonic Air flow Sensing , Laser-Based Absolute, Smoke Detection, Pre-engineered pipe network designs, Programmable Alarm Thresholds, Clean air barrier optics protection, Instant Recognition Display, Instant Fault Finder™, Auto Learn™ Smoke,

Auto Learn™ Flow, Field Service Access Door, Multiple Event Logging in separate logs, Event log – up to 18000 events , Offline/online configuration capability,  Up to 250 m2 (2500 sq. ft.) coverage*


UL, ULC, FM, CFE, LPCB, VdS, VNIIPO, AFNOR, ActivFire, CE - EMC and CPD,  EN 54-20



Input Power Voltage
Current @ 24 VDC

24V DC Nominal (18-30 V DC)
220 mA nominal, 295 mA in alarm


Approx. 2 kg (4.4 lbs)

IP Rating



Upright, inverted or horizontal

Operating Conditions


Tested to:
Sampled Air:

0°C to 39°C (32°F to 103°F) *
-10°C to 55°C (14°F to 131°F)
-20°C to 60°C (-4°F to 140°F)
5% to 95% RH, non-condensing

Sampling Network


Maximum pipe lengths:

Sampling Hole Options:

1 x 25 m (80 ft) (Max. 12 holes)
2 x 15 m (50 ft) per branch (Max. 6 holes per branch)
Pre-Engineered Option or Maximum Pipe length in
 accordance with Pipe Modeling Design Tool (ASPIRE2™)

Air Inlet Pipe

Accepts both metric and American standard pipe sizes Metric: 25 mm (1.05 in.) American Pipe: IPS 21 mm (¾ in.)

Area Coverage

Up to 250 m2 (2500 sq. ft.) depending on local codes and standards

Relay Outputs

3 changeover relays (Fire 1, Action, Fault), Contacts rated 2A @ 30 VDC (max). NO/NC Contacts

Cable Access

3 x 25 mm (1.05 in.) cable entries (1 rear entry, 2 top entry)

Cable Termination

Screw Terminals 0.2-2.5 mm2 (30-12 AWG)


Shown in Terminal Block Connections diagram, to right, plus an RS232 Programming Port. General Purpose Input (GPI) interface offers: Reset, Disable, Standby, Alarm set 1, Alarm set 2 and External Input functions

Alarm Threshold Setting Range


Alert, Action

0.025 - 2.00% obs/m (0.008 - 0.625% obs/ft)

Fire 1, Fire 2

0.025 - 20.00% obs/m (0.008 - 6.25% obs/ft)

Individual Alarm Delays

0 – 60 seconds

Two Alarm Threshold Settings

Either time or GPI based



4 Alarm State Indicators

Fault and Disabled Indicators

Smoke Level Indicator

Instant Fault Finder

Reset, Disable and Test Controls

Smoke and Flow Auto Learn Controls

Event Log

Up to 18000 events, time and date stamped in separate, non-volatile, logs for: Smoke Level, Flow Level, Detector Status and Faults

Auto Learn Smoke & Flow

Automatically set acceptable alarm thresholds for both smoke and flow levels
Minimum 15 minutes, maximum 15 days (default 14 days)
During Auto Learn thresholds are NOT changed from pre-set values