4 Channel explosive and toxic gas detection controller for industrial use

The BX444-Mc control unit has been designed and built according to European regulations to flexibly detect thepresence of toxic and/or explosive gas and oxygen, through the connection of 4 remote probes.A microprocessor is used to create a complete surveillance and control system with maximum flexibility. Thanks to this and its other features BX444-Mc is suitable for civil use, industrial use and small underground car parks.

The BX444-M control unit has three hazard levels:

1st LEVEL, 1st Alarm. This was set to 8 % of L.E.L. (120ppm)

2nd LEVEL, 2nd Alarm. This was set at 13% of L.E.L. (200ppm)

3rd LEVEL, Main Alarm. This was set at 20 % of L.E.L. (300ppm)

Primary power supply: 110 ÷ 240 VAC 50/60 Hz
Secondary power supply: 12 V. DC ± 10%
Absorption: 9.5 W in alarm
Pre alarm output relay: ON-OFF
Alarm output relay: In exchange
Failure relay: ON – OFF
Gas probe: Max. 4
Catalytic, Electrochemical, Semiconductor, Pellistore
Oxygen alarm threshold: deficiency and excess in%
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
Color display changeable according to the working status
Working temperature: -10 ° C ÷ + 60 ° C
Protection degree: IP44
Installation: Wall or square
Dimension: 144 x 144 x 108
Package Dimensions: 170 x 170 x 120
Weight: approx. 500 grams

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