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Part Number or the Week S3EP-V-VAD-HPR-R

VESDA Small Area Detector

Part no.VLF-250-00
BrandVESDA
RangeVESDA VLF
Xtralis VLF-250-00 Small Area Detector — white housing with circular display and black top cap

Image for illustration; item supplied may differ

DescriptionSpecificationsOptional accessories

Description

The VESDA VLF-250-00 is an early warning air sampling smoke detector using laser based aspirated smoke detection technology for small, critical environments, and it monitors areas up to 250 m² (2690 sq. ft.) dependant on local codes and standards. The -00 code is the European language set with English display labels. Power Consumption is 220 mA nominal, 295 mA in alarm.

VLF-250-00 is the ordering code for VESDA VLF-250-00 European language set, English display labels.

Read the full technical description

VLF-250-00 is the ordering code for VESDA VLF-250-00 European language set, English display labels.

The VESDA VLF-250 early warning air sampling smoke detector incorporates world leading VESDA very early warning laser based aspirated smoke detection technology. It provides localized fire risk management solutions for small, critical environments. The VLF-250 monitors areas up to 250 m² (2690 sq. ft.) dependant on local codes and standards.

Power Consumption at a 24 VDC Supply is 220 mA nominal, 295 mA in alarm. The product must use a power supply conforming to EN54: Part 4. For a Class A detector, hole sensitivity must be better than 1.5% obscuration/m and transport time less than 60 seconds for VLF-250 direct sampling and 90 seconds for VLF-250 capillary sampling.

Specifications

Ordering code descriptionVESDA VLF. European language set. English display labels
Input powerVoltage: 24V DC Nominal (18-30 V DC) Current @ 24 VDC: 220 mA nominal, 295 mA in alarm
Dimensions256 mm x 183 mm x 92 mm (101/16 in x 71/5 in x 32/3 in)
WeightApprox. 2 kg (4.4 lbs)
Ingress protectionIP30
MountingUpright, inverted or horizontal
Operating conditionsAmbient: 0°C to 38°C (32°F to 100°F); Sampled Air: -20°C to 60°C (-4°F to 140°F); Humidity: 5% to 95% RH, non-condensing
Sampling networkMaximum pipe lengths: 1 x 25 m (80 ft) (Max. 12 holes); 2 x 15 m (50 ft) per branch (Max. 6 holes per branch). Sampling Hole Options: Pre-Engineered Option or Maximum Pipe length in accordance with Pipe Modelling Design Tool (ASPIRE™)
Air inlet pipeAccepts both metric and American standard pipe sizes; Metric: 25 mm (1.05 in.); American Pipe: IPS 21 mm (¾ in.)
Area coverageUp to 250 m² (2,690 sq. ft.) depending on local codes and standards
Relay outputs3 changeover relays (Fire 1, Action, Fault), Contacts rated 2A @ 30 VDC (max). NO/NC Contacts
Cable access3 x 25 mm (1.05 in.) cable entries (1 rear entry, 2 top entry)
Cable terminationScrew Terminals 0.2-2.5 mm² (30-12 AWG)
InterfacesShown in Terminal Block Connections diagram plus an RS232 Programming Port. General Purpose Input (GPI) interface offers: Reset, Disable, Standby, Alarm set 1, Alarm set 2 and External Input functions.

Specifications per manufacturer documentation, subject to change. E&OE.

Optional accessories