Modular gas detection ATEX controller: 2 conventional sensors

II (2) G EN 60079-29-1

Through the connection of 2 remote sensors, the BX280-AX control unit has been designed and built to detect the presence of toxic and/or explosive gas in a flexible way A microprocessor is used to create a complete surveillance and control system with maximum flexibility. Thanks to this and its other features, the BX280-AX is suitable for civil and industrial applications.

The BX280-AX control unit has two hazard levels:

1st LEVEL, 1st Pre-Alarm. It’s set at 13 % of L.E.L. for all sensors.

2nd LEVEL, Main Alarm. It’s set at 20% of L.E.L..

Main power supply: 110÷240 VCA 50/60 Hz

Secondary power supply: 12 V. dc ± 10%

Power demand: 6 W in alarm

Prealarm output relay: ON-OFF

Alarm output relay: in change 10A 250VAC

Fault relay:  ON-OFF

Conventional gas sensor: Max. 2

Catalytic, Electrochemical, Semiconductor, Pellistore

Explosive alarm threshold: 8 -13 – 20% LIE

Toxic alarm threshold: 120 – 200 – 300 ppm

Input signal: 4 ÷ 20 mA on 220 Ohm

Accuracy: 1% FS

Positive Security: Selectable

OVER LOAD control: 1 for each probe

OVER LOAD control: 1 per battery

Working temperature: -10 ° C ÷ + 60 ° C

Protection degree: P20 in air

Installation: Rail DIN/Omega bar

Dimensions: 105x90x58 6 modules

Package Dimensions: 100x130x95

Weight: 280 grams approx.

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