Duomo BX150 Manual - Halaman 3
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Halaman Cetak
Typical Wiring Schematic for BX150
System
Fault
(Volt-free relays -
C
Link to energise)
Ph
N
4
Ph
Fuse
230V AC Voltage
N
Power Terminal Block
230V Supply Typical
Configuration
Electrical Installation
The BX150 is a safety device designed to give audible alarms
and automatically provide latched electrical isolation of
associated gas safety shut off valves in the event of a gas leak or
build up of toxic gases. The sensor can be located up to 100m
from the gas detector. Cable size should be 1mm2 CSA. If the
sensor cables are run seperately in specific conduit it is not
essential to use screened cable but if the cables are routed
through conduit or trunking containing other wiring the use of
screened cable is advisable. The wiring should be performed by
a qualified person in accordance with current regulations. The
plug-in terminal rail makes installation easy and quick. Do not
mou nt close to any heat source or in an area where moisture is
likely to effect operation. The IP rating of this unit is IP44.
Sensors should be positioned as shown below. If you require
any guidance on this please call our technical help on 01905
797989.
Carbon
Monoxide
w: www.duomo.co.uk
-
Relay
Relay Main
Pre-Alarm
Alarm
NC
NC
NC
C
C
NO
NO
NO
5
6
7
8
9
10
* Intrinsic Safety
Ph
N
Relay Main
Alarm
NC
C
NO
8
9
10
12V Supply Typical
Configuration
switch on
Signal Terminal Block
Installing A Sensor
The sensors must be mounted as shown below with
the sintered head pointing vertically down. When
replacing sensors never seperate a sensing head from
its PCB. The sensor will have been calibrated using
this particular board and therefore will not function
correctly with any other.
Important Notes
Always check the wiring before powering up the
system.
Do not test this sensor with anything other than
Duomo test gas (see 'BX150 Operation' section for
further information). Concentrations above this will
damage the sensor and shorten sensor life. The
installation of this gas detector does not release the
user from observing all the regulations concerning
the characteristics, installation and and the use of gas
appliances; the ventilation of the environment and
the elimination of combustion products in
accordance with the local recommendations,
regulations and bylaws. For any damage caused to
people, property or animals resulting from incorrect
connection, installation or application of this gas
detector Duomo will not be held responsible or liable.
To ensure correct function after installation Duomo
provide a commissioning service using calibrated test
gases. For this service call 01905 797989.
-
t: 01905 797989
4
5
6
7
8
9
10
1
2
(Optional standby
12 V
battery - If required)
Battery
ON
SGM595
autosetting
-
f: 01905 774296
1
2
3
4
5
1
2
3
12 V
Battery
(If required)
Power Supply Unit
12V
3
4
5
1
2
3
Sensor
|
© Duomo (UK) Ltd. 2007