Commissioning
It is strongly recommended that this detector should be commissioned by Duomo Commissioning Engineers or
engineers approved by Duomo to carry out this work. A quotation for commissioning or service will be provided upon
request. Fax site details and preferred date for commissioning to 01905 774296 and the Duomo Service Department will
fax back confirmation.
The benefits of this equipment being commissioned by Duomo are:
On board spares. If for whatever reason this equipment doesn't function correctly Duomo engineers will have spares on
board to ensure that the commissioning is successful.
A Duomo Commissioning Certificate is provided.
It is prudent to make electrical connection to the detector terminal plus when withdrawn and leave the plug off the
detector so that the Duomo Engineer is the first to power up the unit on site. This allows wiring to be checked prior to
commissioning and avoids damage due to incorrect connection. Guarantees for this product will become void if damage
is caused by the installer.
Technical specification
Power Supply
230V AC 50Hz +/- 10%
Secondary Battery
12V DC +/- 10%
Power Consumption
30W maximum @ 230V
Power Consumption
25W maximum @ 12V
Relay contact range
10A 230V resistive - 5A 30V DC resistive
1
st
pre-alarm
Can be set from 8% L.E.L. (120
ppm)
to 13% (250
ppm
) of LEL
Main alarm
Fixed at 20% L.E.L. / 300
ppm
Sensor fault
Short circuit, interruption, sensor deterioration
No. of remote sensors
16
MIcro switches to include/exclude sensors
1 per sensor
Monitored gas indication
Through illuminated display
Input signal
4 - 20mA
Device precision
1% FS
Reaction time
<10 seconds
Microprocessor
8 bytes
Working temperature
-10 °C to 45 °C
Start-up self diagnostic delay
90 seconds
Suitable for use with sensor type
SG500, SG590, SGM595, CO100A, CO200A, SG810
Maximum distance for sensor connection
100
m
Cable diameter for sensors
1
mm2
CSA
Dimemsions
360
mm
x 320
mm
x 135
mm
Protective rating
IP55
Guarantee
3 years from date of manufacture
Duomo gas proving systems - Duomo gas detection - Duomo carbon dioxide sensors - Duomo ventilation interlocks - Are available direct or from all major stockists - www.duomo.co.uk
