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VESDA LaserFocus VLF VESDA LaserFocus VLF
VESDA LaserFocus VLF
The VESDA VLF by Xtralis is an aspirating smoke detector ideal for small, business-critical spaces. Available in two models, the VLF-250 covers up to 250m2, and the VLF-500 covers areas up to 500m2.
- Out-of-the-Box Installation and Commissioning
- Ultrasonic Airflow Sensing
- Laser-Based Absolute Smoke Detection
- Pre-engineered pipe network designs
- Programmable Alarm Thresholds
- Clean air barrier optics protection
- Instant Recognition Display
- Instant Fault FinderTM
- AutoLearnTM Smoke
- AutoLearnTM Flow
- Field Service Access Door
- Multiple Event Logging in separate logs
- Event log – up to 18000 events
- Offline/online configuration capability
Input Power:
- Voltage: 24V DC Nominal (18-30 V DC)
- Current @ 24 VDC: 220 mA nominal, 295 mA in alarm
Dimensions (W x H x D): 256mm x 183mm x 92mm
Weight (W x H x D): Approx. 2kg
IP Rating (W x H x D): IP30
Mounting (W x H x D): Upright, inverted or horizontal
Operating Conditions*:
- Ambient: 0°C to 39°C
- Tested to (EN54-20): -10°C to 55°C
- Sampled Air**: -20°C to 60°C
- Humidity: 5% to 95% RH, non-condensing
Sampling Network:
- Maximum pipe lengths: 1 x 25m (Max. 12 holes) 2 x 15m per branch (Max. 6 holes per branch)
- Sampling Hole Options: Pre-Engineered Option or Maximum Pipe length in accordance with Pipe Modelling Design Tool (ASPIRETM)
Air Inlet Pipe:
- Accepts both metric and American standard pipe sizes
- Metric: 25 mm (1.05 in.) American Pipe: IPS 21 mm (3⁄4 in.)
Area Coverage: Up to 250m2 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 25mm cable entries (1 rear entry, 2 top entry)
Cable Termination: Screw Terminals 0.2-2.5mm2 (30-12 AWG)
Interfaces: 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
- Fire 1, Fire 2: 0.025 - 20.00% obs/m
- Individual Alarm Delays: 0 – 60 seconds
- Two Alarm Threshold Settings: Either time or GPI based
Display
- 4 Alarm State Indicators
- Smoke Level Indicator
- Reset, Disable and Test Controls
- Fault and Disabled Indicators
- Instant Fault Finder
- Smoke and Flow AutoLearn 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
AutoLearn Smoke & Flow
- Automatically set acceptable alarm thresholds for both smoke and flow levels
- Minimum 15 minutes, maximum 15 days (default 14 days)
- During AutoLearn thresholds are NOT changed from pre-set values
Warranty Period: 2 years
- UL
- ULC
- CCC
- FM
- ActivFire
- CE
- LPCB
- VdS
- VNIIPO
- NF
- EN 54-20
Class A (12 holes / 0.12% obs/m)
Class B (12 holes / 0.35% obs/m)
Class C (12 holes / 0.80% obs/m)
Classification of any configuration is determined using ASPIRE.
- Out-of-the-Box Installation and Commissioning
- Ultrasonic Airflow Sensing
- Laser-Based Absolute Smoke Detection
- Pre-engineered pipe network designs
- Programmable Alarm Thresholds
- Clean air barrier optics protection
- Instant Recognition Display
- Instant Fault FinderTM
- AutoLearnTM Smoke
- AutoLearnTM Flow
- Field Service Access Door
- Multiple Event Logging in separate logs
- Event log – up to 18000 events
- Offline/online configuration capability
Input Power:
- Voltage: 24V DC Nominal (18-30 V DC)
- Current @ 24 VDC: 220 mA nominal, 295 mA in alarm
Dimensions (W x H x D): 256mm x 183mm x 92mm
Weight (W x H x D): Approx. 2kg
IP Rating (W x H x D): IP30
Mounting (W x H x D): Upright, inverted or horizontal
Operating Conditions*:
- Ambient: 0°C to 39°C
- Tested to (EN54-20): -10°C to 55°C
- Sampled Air**: -20°C to 60°C
- Humidity: 5% to 95% RH, non-condensing
Sampling Network:
- Maximum pipe lengths: 1 x 25m (Max. 12 holes) 2 x 15m per branch (Max. 6 holes per branch)
- Sampling Hole Options: Pre-Engineered Option or Maximum Pipe length in accordance with Pipe Modelling Design Tool (ASPIRETM)
Air Inlet Pipe:
- Accepts both metric and American standard pipe sizes
- Metric: 25 mm (1.05 in.) American Pipe: IPS 21 mm (3⁄4 in.)
Area Coverage: Up to 250m2 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 25mm cable entries (1 rear entry, 2 top entry)
Cable Termination: Screw Terminals 0.2-2.5mm2 (30-12 AWG)
Interfaces: 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
- Fire 1, Fire 2: 0.025 - 20.00% obs/m
- Individual Alarm Delays: 0 – 60 seconds
- Two Alarm Threshold Settings: Either time or GPI based
Display
- 4 Alarm State Indicators
- Smoke Level Indicator
- Reset, Disable and Test Controls
- Fault and Disabled Indicators
- Instant Fault Finder
- Smoke and Flow AutoLearn 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
AutoLearn Smoke & Flow
- Automatically set acceptable alarm thresholds for both smoke and flow levels
- Minimum 15 minutes, maximum 15 days (default 14 days)
- During AutoLearn thresholds are NOT changed from pre-set values
Warranty Period: 2 years
- UL
- ULC
- CCC
- FM
- ActivFire
- CE
- LPCB
- VdS
- VNIIPO
- NF
- EN 54-20
Class A (12 holes / 0.12% obs/m)
Class B (12 holes / 0.35% obs/m)
Class C (12 holes / 0.80% obs/m)
Classification of any configuration is determined using ASPIRE.