Summary
Aspirating smoke detector providing very early warning for small business-critical environments.
Aspirating smoke detector providing very early warning for small business-critical environments.
Application
Suitable for a range of application areas, for example:
- Local telecommunication exchanges.
- Air handling units.
- Smaller server rooms.
- Correctional facilities.
- Control rooms.
- Utility control hubs.
- Switch rooms.
- Railway signal hubs.
- Storage facilities.
- Cabinets.
- Hazardous areas (Class 1 Division 2).
- Substations.
Suitable for a range of application areas, for example:
- Local telecommunication exchanges.
- Air handling units.
- Smaller server rooms.
- Correctional facilities.
- Control rooms.
- Utility control hubs.
- Switch rooms.
- Railway signal hubs.
- Storage facilities.
- Cabinets.
- Hazardous areas (Class 1 Division 2).
- Substations.
Description
Aspirating smoke detector providing very early warning for small business-critical environments.
This configuration protects environments of less than 250 m² (VLF-250-00), or 500 m² (VLF-500-00). The detector works by continually drawing air into sampling holes in a pipe network. The air is filtered and passed into a detection chamber where light scattering technology detects the presence of very small amounts of smoke. Detector status information is communicated on the detector display and via relays or optional interface cards.
Features and benefits:
- Out-of-the-box installation and commissioning.
- Ultrasonic airflow sensing.
- Laser-based absolute smoke detection.
- Sensitivity range - 0.025 - 20.00% obs/m
- Pre-engineered pipe network designs.
- Programmable alarm thresholds.
- Clean air barrier optics protection.
- Instant recognition display.
- Instant Fault Finder™.
- AutoLearn™ Smoke.
- AutoLearn™ Flow.
- Field service access door.
- Multiple event logging in separate logs.
- Event log – up to 18 000 events.
- Offline/ online configuration capability.
- Up to 250 m² (VLF-250-00) or 500 m² (VLF-500-00) coverage.
- Suitable for upright, inverted or horizontal mounting.
- CE/ UKCA Certified.
Aspirating smoke detector providing very early warning for small business-critical environments.
This configuration protects environments of less than 250 m² (VLF-250-00), or 500 m² (VLF-500-00). The detector works by continually drawing air into sampling holes in a pipe network. The air is filtered and passed into a detection chamber where light scattering technology detects the presence of very small amounts of smoke. Detector status information is communicated on the detector display and via relays or optional interface cards.
Features and benefits:
- Out-of-the-box installation and commissioning.
- Ultrasonic airflow sensing.
- Laser-based absolute smoke detection.
- Sensitivity range - 0.025 - 20.00% obs/m
- Pre-engineered pipe network designs.
- Programmable alarm thresholds.
- Clean air barrier optics protection.
- Instant recognition display.
- Instant Fault Finder™.
- AutoLearn™ Smoke.
- AutoLearn™ Flow.
- Field service access door.
- Multiple event logging in separate logs.
- Event log – up to 18 000 events.
- Offline/ online configuration capability.
- Up to 250 m² (VLF-250-00) or 500 m² (VLF-500-00) coverage.
- Suitable for upright, inverted or horizontal mounting.
- CE/ UKCA Certified.
Color
White
White
Material
Plastic
Plastic
Shape
Rectangle
Rectangle
Length
92 mm
92 mm
Width
256 mm
256 mm
Height
183 mm
183 mm
SKU Code
VLF-250-00
VLF-500-00
Specification
Classification data
Standard
To BS EN 54-20.
To BS EN 54-20.
Third-party certification
LPCB, FM, ActivFire, VdS, NF, and CCC-approved.
LPCB, FM, ActivFire, VdS, NF, and CCC-approved.
Sensitivity class
To BS EN 54-20, Class A., To BS EN 54-20, Class B., To BS EN 54-20, Class C.
To BS EN 54-20, Class A., To BS EN 54-20, Class B., To BS EN 54-20, Class C.
Sampling pipe
-
-
Length (maximum)
25 m.
50 m.
Air inlet holes (maximum)
12.
30.
Coverage (minimum)
250 m².
500 m².
Enclosure
-
-
Material
Plastic.
Plastic.
Ingress protection (minimum)
IP 30.
IP 30.
Power supply
24 V d.c.
24 V d.c.
Controls
-
-
Display type
Light-emitting diode display (LED).
Light-emitting diode display (LED).
Functions
Four alarm thresholds (two pre-alarms and two alarms).
On board memory capable of recording 18 000 events.
Four alarm thresholds (two pre-alarms and two alarms).
On board memory capable of recording 18 000 events.
Display the following information
Alert, Action, Fire 1 and Fire 2.
Visual indication of smoke level.
Reset, disable and test control.
Disabled.
Fault.
Power.
Flow AutoLearn™ Controls.
Alert, Action, Fire 1 and Fire 2.
Visual indication of smoke level.
Reset, disable and test control.
Disabled.
Fault.
Power.
Flow AutoLearn™ Controls.
Relay contacts
3 no. 2 A/ 30 V d.c. changeover relays.
3 no. 2 A/ 30 V d.c. changeover relays.
Additional properties
Weight
2 kg.
2 kg.
Power consumption
Manufacturer's standard.
Manufacturer's standard.
Operating temperature
Ambient: 0–38°C.
Sampled air: -20 to +60°C.
Sampled air: -20 to +60°C.
Ambient: 0–38°C.
Sampled air: -20 to +60°C.
Sampled air: -20 to +60°C.
Operating humidity
5–95% RH, non-condensing.
5–95% RH, non-condensing.
SoftwareVersion
N/A - out-of-the-box.
N/A - out-of-the-box.
Sensitivity
Manufacturer's standard.
Manufacturer's standard.
Cable
3 x 25 mm cable entries.
3 x 25 mm cable entries.
Communications
VESDAnet.
VESDAnet.
Accessories
Not required., Power supply unit - VPS-220-E5., Power supply unit - VPS-215-E5., Power supply unit - VPS-250-E5., VESDAnet Interface Card - VIC-010., Multifunction Control Card (MCC) - VIC-020., Multifunction Control Card (MCC) with Monitored Powered Output (MPO) - VIC-030., Filter Cartridge - VSP-005., Xtralis In-Line Filter., Aspirator for VESDA VLF-250 - VSP-722., ASD Sampling Hole Clips., Refrigerated Storage Sampling Kit - VSP-860., Tamper Proof Sampling Point., Automatic Purging Unit - F-BO-AFE70., VESDA High Level Interface (HLI)., VESDA Remote Display Module., VESDA 19" Sub Rack., VESDA LCD Programmer., Xtralis Test Transformer., Smoke Pen.
Not required., Power supply unit - VPS-220-E5., Power supply unit - VPS-215-E5., Power supply unit - VPS-250-E5., VESDAnet Interface Card - VIC-010., Multifunction Control Card (MCC) - VIC-020., Multifunction Control Card (MCC) with Monitored Powered Output (MPO) - VIC-030., Filter Cartridge - VSP-005., Xtralis In-Line Filter., Aspirator for VESDA VLF-500 - VSP-715., ASD Sampling Hole Clips., Refrigerated Storage Sampling Kit - VSP-860., Tamper Proof Sampling Point., Automatic Purging Unit - F-BO-AFE70., VESDA High Level Interface (HLI)., VESDA Remote Display Module., VESDA 19" Sub Rack., VESDA LCD Programmer., Xtralis Test Transformer., Smoke Pen.
Sustainability data
Material
Plastic
Plastic