Xtralis VESDA ECO - Operation

VESDA ECO Detector by Xtralis
17898_05 Overview
Operation
The ECO is designed to be inserted into an aspirated air sampling pipe network to
detect and indicate the concentration of background gas levels.
pipe network
uses an aspirating fan or pump at one end to collect an air sample
from a large area by means of sampling holes located at
defined
length, or lengths, of fixed pipe work.
When inserted into the pipe network the ECO detector takes a samp
flowing through the pipe and passes it over the
integrated gas sensors
sensors are protected
from dust, dirt and other contaminants by a
design which is integrated into the internal sensor cartridge itself.
The air flow through the detector is monitored
by the ECO independent
aspirating system. The ECO provides f
ault indication should the flow
sensors fall outside acceptable limits.
In the event of an alarm threshold being exceeded; integra
l alarm
and onboard relays are activated for interface to remote
warning devices
party systems.
Two alarm thresholds are provided for each of the gases
being detected. The first
threshold, the Low alarm threshold, can be used to
provide a warning to site
personnel and supervisory staff
, and to initiate ventilation where available.
second threshold, the High Alarm threshold, can be
used to initiate site evacuation
or safety procedures.
For further information on specific Asp
irated Smoke Detectors please see the
specific Xtralis ASD product manual.
To maximise flammable gas sensor life; silicone free smoke test gas
canisters should be used for testing ASD installations
which inc
one or more ECO detectors.
Smoke tes
t canisters used for testing ASD installations contain
hydrocarbons.
ECO alarm and signal outputs should be isolated
use
to avoid unwanted activation of remote executive actions
Product Guide
3
The ECO is designed to be inserted into an aspirated air sampling pipe network to
detect and indicate the concentration of background gas levels.
An air sampling
uses an aspirating fan or pump at one end to collect an air sample
defined
intervals along a
When inserted into the pipe network the ECO detector takes a samp
le of the air
integrated gas sensors
. The gas
from dust, dirt and other contaminants by a
n innovative filter
by the ECO independent
ly of the
ault indication should the flow
past the gas
l alarm
indicators are lit,
warning devices
or 3
rd
being detected. The first
provide a warning to site
, and to initiate ventilation where available.
The
used to initiate site evacuation
irated Smoke Detectors please see the
To maximise flammable gas sensor life; silicone free smoke test gas
which inc
orporate
t canisters used for testing ASD installations contain
ECO alarm and signal outputs should be isolated
during
to avoid unwanted activation of remote executive actions
.