Duomo BX316 Handmatig

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Application

Duomo is recognised within the gas industry for

providing a comprehensive range of low cost, high

reliability gas detection for many applications. We have

installed and commissioned natural gas and carbon

monoxide sensors in applications such as boiler rooms,

kitchens, car parks, aircraft hangers, factories and

shopping centres. The BX216 is the command centre for

the complete range of Duomo gas sensors. All Duomo

products are manufactured to meet relevant European

Normatives and proposals for explosive and toxic gases.

Operation

The BX216 can detect both explosive and toxic gases.

When the remote sensor detects the presence of the

target gas a 4 - 20mA signal is sent to the detector,

proportional to the level of gas. The BX216 then

operates a pre-alarm relay - used for remote sirens or

visual indicators. If the level of gas continues to rise then

the second pre-alarm is actuated. In the case of

explosive gases, when the gas reaches a preset level, the

main alarm relay is activated to break the electrical

supply to the gas safety shut-off valve (SSOV).The BX216

also has a separate volt-free sensor fault relay that

actuates if the correct return signal is not sensed by the

detector. There is also the provision of a fire alarm

interface. This controller can be interlinked with a fire

alarm so that in the event of a fire, it would shut down

the gas supply.

w: www.duomo.co.uk

e: [email protected]

BX316 Gas Detector

Microprocessor control

Wall mounted

16 zone protection (across 1 or 2 zones)

4 - 20mA signal input

Relay outputs (incl. fire alarm interface)

Positive safety feature

Measuring range 0 - 20% LEL/0 - 300ppm

IP65 protective rating

EN50194 for explosive gases

EN50291 for toxic gases

3 year guarantee

Features

The BX216 is a wall mounted microprocessor based gas

detector control unit. It can be configured to meet

customer requirements. The following parameters can

be changed using the on board menu:

Number of sensors from 1 to 16

Type of gas to be sensed (explosive or toxic)

Pre-alarm level for each sensor

The number of zones (1 or 2)

Main alarm relay action (latching or auto-reset)

Positive safety feature

Alarm logging function

Event history

The BX216 has five main terminal blocks for the

following;

The incoming mains supply

The alarm circuit wiring (including fault, siren,

pre-alarm and main alarm relays)

The power supply to the sensors

The 4 - 20mA return cable from the sensors

A 0 - 10V output to BMS proportional to the 4 - 20mA

return signal

The front panel has an LCD display showing the date,

time, current sensor levels and much more. LED's on the

panel indicate what alarm status the unit is in, as well as

any faults present on the connected sensors.

t: 01905 797989

f: 01905 774296