VESDA-E VEP-A00-P Product Guide
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5
2
Product Information
2.1
Detector Components
The VEP-A00 detector contains field-replaceable Filter, Aspirator and Chamber Assembly components.
These are shown below in Figure 2-1.
F
D
C
B
E
Legend
A
Fascia
B
Filter
C
Chamber Assembly
D
Aspirator
E
Sampling Module
F
Base
Figure 2-1: Detector components
Refer to Chapter 7 for further information regarding maintenance scheduling and availability of spare parts.
2.2
How the VEP-A00 works
An air sampling pipe network collects samples from the protected area. The integrated aspirator draws air into
the sampling pipe(s).
The air from each sampling pipe passes through an air flow sensor and then a sample of the air is drawn into
the smoke detection chamber via the sampling module, after first passing through the replaceable filter.
A further filter provides filtered clean air to protect the optical surfaces inside the detection chamber from
contamination.
The detection chamber uses a short wavelength laser light source in conjunction with photodiodes and
advanced imaging technology to achieve optimum response to a wide range of smoke types.
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 VEP-A00 and may be vented back into the protected zone.
Alarms can be signalled via Relays and VESDAnet. Ethernet can be used for configuration and secondary
monitoring, and a USB interface is provided for initial setup.
The detector has a LED user interface. A series of LEDs display Alarm, Fault, Disable and detector power on
status. The detector has a buzzer which can be configured to signal alarm, fault, disable and standby status.
A button allows the user to Reset or Disable the detector or to acknowledge status.
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