The air filtered and passed into detection chamber where light
scattering technology detects the presence very small amounts smoke.).35% obs/m)
-
- Class (12 holes 0.) coverage*
Listings/Approvals
• UL
• ULC
• CCC
• FM
• ActivFire
• CE
• LPCB
• VdS
• VNIIPO
• NF
• 54-20
-
- Class (12 holes 0.com for the latest product
approvals matrix. Should fault
occur, the user simply opens the field service door and activates the Instant
Fault Finder feature determine the specific fault condition. This information
can then passed onto their fire service company, ensuring that service
technicians arrive onsite fully prepared. The
VLF the first air sampling smoke detector use ultrasonic flow sensing.xtralis.
The detector works continually drawing air into sampling holes pipe
network.
.
Out-of-the-box operation
The VLF can installed and commissioned out-of-the-box without the need
for special interface software programming tools.
Ultrasonic Flow Sensing
The patent-pending Ultrasonic Flow Sensing used the VLF provides a
direct reading the sampling pipe flow rate.
Detector status information communicated the detector display and via
relays optional interface cards.VESDA VLF VLF-250
The VESDA VLF-250 detector very early warning smoke detector
designed protect small, business-critical environments less than 250 m2
(2,690 sq.
Features
• 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 Finder™
• AutoLearn™ Smoke
• AutoLearn™ Flow
• Field Service Access Door
• Multiple Event Logging separate logs
• Event log 18000 events
• Offline/online configuration capability
• 250 (2,690 sq.
Regional approvals listings and regulatory compliance vary between
VESDA product models. ft. Refer www. The system immune air
temperature and pressure changes and unaffected contamination. ft.80% obs/m)
Classification any configuration is
determined using ASPIRE.12% obs/m)
-
- Class (12 holes 0.
In operation, the unique Smoke DialTM
display provides the user with an
instant understanding smoke event, even from distance
