VESDA-E VEU Aspirating Smoke Detector

Key Features
Short wavelength laser based detection
Inherent absolute calibration
Advanced detection technology equivalent to hundreds of thousands of sensors
Clean air barrier for optics protection
Most robust contamination resistance


The VEU series of aspirating smoke detectors are the premium detector of the VESDA-E range. An Ultra-wide sensitivity range; 15 times greater than VESDA VLP, and provision for more sampling holes provide an increased coverage in high airflow applications by up to 40%. Considerably longer linear pipe runs and extended branched pipe network configurations cater perfectly to applications with higher ceilings providing an increased coverage by up to 80% whilst allowing convenient detector mounting for ease of service and maintenance. A range of revolutionary new features provide unsurpassed detection performance, flexibility, field programmability, connectivity and reduced total cost of ownership.

Installation, Commissioning and Operation

VEU features a robust IP40-rated enclosure and is equipped with a powerful aspirator that provides a total pipe length of 800m (2,624ft). It is fully supported by the ASPIRE-E and Xtralis VSC software applications which facilitate ease of pipe network design, system commissioning and maintenance together with compatibility with existing VESDA installations.

Colour Touch Screen Display

The VEU-A10 detector features a 3.5” colour touch screen display which provides a range of status information including smoke level as well as trouble conditions. A simple navigation system allows the user to view all the status information.


VESDA devices communicate on VESDAnet which provides a robust bi-directional communication network allowing continued redundant operation even during single point wiring failures. VESDAnet enables primary reporting, centralized configuration, control, maintenance and monitoring.

Ethernet and Wi-Fi Connectivity

VESDA-E detectors offer Ethernet and Wi-Fi connectivity as standard features. The detector can be added to a corporate network, allowing Wi-Fi enabled tablet devices and laptops installed with Xtralis configuration software to connect wirelessly to the detector via the network.

Backward Compatibility

VESDA-E detectors occupy the same mounting footprint, pipe, conduit and electrical connector positioning as VESDA VLP and VLS detectors hence providing complete backwards compatibility.

How it Works

Air is continually drawn from the protected area through the air sampling pipe network and into the detector by a high efficiency aspirator. The air sampling pipe network can contain up to four pipes. The air from each sampling pipe passes through an airflow sensor and then a sample of the air is drawn into the smoke detection chamber via the sampling module, after first passing through the filter. An additional filter provides clean air to protect the optical surfaces inside the detection chamber from contamination.

The Flair™ detection chamber uses the equivalent of 330,000 sensors and sophisticated algorithms for detection and particle classification.

If the detected smoke is higher than the set alarm thresholds it is reported as an Alert, Action, Fire 1 or Fire 2 alarm condition.

Air is exhausted from the detector and may be vented back into the protected area.

Alarms can be signalled via Relays and VESDAnet. Ethernet and Wi-Fi can be used for configuration and secondary monitoring, and a USB interface is provided for initial setup.

A series of LEDs display Alarm, Trouble, Disable and detector power on status. A button allows the user to Reset or Disable the detector. In addition, an optional 3.5” LCD displays detector status including smoke level and a smoke level bar graph, alarm thresholds, trouble status, % airflow level, normalization status and filter life used.

Additional Features

  • Ultra-wide sensitivity range
  • Flow fault thresholds configurable per port
  • Long-life, easy-to-replace filter
  • Quiet operation
  • LEDs for alarm and fault signalling
  • 3.5” colour touch screen for status review
  • Advanced remote diagnostics
  • Area coverage up to 2,000 m² (21,500 ft²)
  • Up to four inlet pipes
  • Total pipe length of 800m (2,624ft)
  • Referencing
  • AutoLearn™ Smoke and Flow
  • Seven programmable relays
  • Two GPIs, monitored and unmonitored
  • Ultrasonic flow sensing
  • Xtralis VSC, VSM4 and ASPIRE-E PC software support
  • IP40 Enclosure (not UL tested)
  • Easy mounting with optional steel support bracket
  • Field replaceable aspirator, sampling module, filter and detection chamber
  • VESDAnet Networking
    Ethernet 100 base T
  • Wi-Fi, 802.11 b/g/n
  • Local host-mode USB port
  • Easy cable termination access
  • Event Log (20,000 events)


EN 54-20, ISO 7240-20

Class C (100 holes / Fire 1 = 0.062% obs/m)

Class B (80 holes / Fire 1 = 0.026% obs/m)

Class A (80 holes / Fire 1 = 0.015% obs/m)

Classification of any configuration is determined using ASPIRE-E.

Regional approvals listings and regulatory compliance vary between product models.

Tech Specs

Supply Voltage

18 - 30Vdc (24V Nominal)

Power Consumption @ 24VDC


Aspirator Setting: 1

Power (Quiescent): 7.0W

Power (In Alarm): 7.8W

Aspirator Setting: 5

Power (Quiescent): 8.8W

Power (In Alarm): 9.6W

Aspirator Setting: 10

Power (Quiescent): 14.7W

Power (In Alarm): 15.5W


Aspirator Setting: 1

Power (Quiescent): 8.2W

Power (In Alarm): 10.4W

Aspirator Setting: 5

Power (Quiescent): 10.0W

Power (In Alarm): 11.6W

Aspirator Setting: 10

Power (Quiescent): 15.8W

Power (In Alarm): 16.6W


VEU-A00 - 4.80kg (10lbs 9oz)
VEU-A10 - 4.83kg (10lbs 10oz)

Operating Conditions

Ambient: 0°C to 39°C (32°F to 102°F)
Sampled Air: -20°C to 60°C (-4°F to 140°F)
Tested to: -20°C to 55°C (-4°F to 131°F)
Humidity: 10% to 95% RH, non-condensing

Sampling Network

Maximum Area of Coverage: 2,000m² (21,500sq.ft)
Minimum Airflow Per Pipe: 15 l/m

Maximum Pipe Lengths

Total Pipe Length (with branches): 800m (2624ft)
Maximum length per pipe, when using four straight pipes: 100m (328ft)

Computer Design Tool



Inlet: External Diameter 25mm or 1.05in (3/4 in IPS)
Exhaust: External Diameter 25mm or 1.05in (3/4 in IPS) via Adaptor


7 Programmable Relays (latch or non-latch states)
Contacts Rated 2A @ 30Vdc (Resistive)

IP Rating


Cable Access

4 x 26mm (1.02in) Cable Entries

Cable Termination

Screw Terminal Blocks 0.2 - 2.5 sq mm (30 - 12 AWG)

Dynamic Range

0.0002%/m (0.00006% obs/ft) to 20% obs/m (6.25% obs/ft)

Sensitivity Range

0.001% - 20.00% obs/m (0.0003 to 6.25% obs/ft)

Threshold Setting Range

Alert: 0.001% - 2.00% obs/m (0.0003% - 0.625% obs/ft)

Action: 0.001% - 2.00% obs/m (0.0003% - 0.625% obs/ft)

Fire1: 0.001% - 2.00% obs/m (0.0003% - 0.625% obs/ft)

Fire2: 0.001% - 20.00% obs/m (0.0003% - 6.25% obs/ft)

Software Features

Event log: Up to 20,000 events stored in FIFO format, smoke level, user actions, alarms and faults with time and date stamp

AutoLearn: Min 15 minutes, Max 15 days

Recommended minimum 1 day

While AutoLearn is in progress, thresholds are NOT changed from pre-set values

Part Codes

VEU-A10 VESDA-E VEU with 3.5” Display
VSP-960 Mounting Bracket (optional)
VSP-962 VESDA-E Filter
VSP-963 VESDA-E Aspirator
VSP-964 VESDA-E Smoke Detection Chamber
VSP-965 VESDA-E Sampling Module



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