ATEX Fire & Explosion Protection

Your Safety Starts Here


Early Fire Detection

ATEX CO Systems can detect the incipient development of fire by sensing and comparing the inlet and outlet air for CO content. The System monitors the process air for the presence of volatile pyrolysis components immediately registering these indications of thermal decomposition or of smoldering spot development. The system detects a difference of 1 ppm. Self-ignition processes are detected as soon as they start and can be stopped effectively.

Drying milk in spray towers is one important application. The probes are placed at all air inlets and outlets, continually sending air samples to the CO detection control cabinet where they are treated and filtered. The differential between the sum of the inlet samples is compared with the sum of outlet samples. When the CO differential reaches one of three programmable levels, the appropriate alarm is signaled:

Inform the operator (recommending system inspection) (e.g. 0.5ppm)
Automatically shut down the process (e.g. 1.5ppm)
And/or activate a rapid suppression system to extinguish the potential fire. (e.g. 3ppm)
By this means, a potential explosion or fire risk is averted in the very early stages. Continuous calibration is done by checking the process reference gas against a sample gas to improve accuracy. Differential CO removes the influence of external CO variations!

Can detect an incipient fire in under 90 seconds.
Reduces the potential for explosions.
Reduces consequential loss from fire.
Very low maintenance costs.
On-site inspection by plant personnel.
Quick installation and commissioning.h as dedusting equipment.

Atex Fire and Explosion Protection Ltd
Unit 20, 114 Wiri Station Road,
Wiri Station Road Business Park, 
Wiri 2104 Auckland
New Zealand 
TEL: +64 (0)9 215 8885 


2/85 Triholm Avenue, Laverton VIC 3028
PO Box 7206, Point Cook VIC 3030
TEL: +61 (0)3 9972 4999 


PO Box 58724
Botany 2163
Auckland, New Zealand 

Subscribe to our Newsletters

Be one of the first to know about the latest solutions and technologies used to combat dust explosion hazards

Copyright © 2024 ATEX Fire & Explosion Protection Ltd.
An ATEX Explosionsschutz GmbH Group company

Design & Development By ATEX CYBER.


64 (0)9 215 8885 630D Great South Road, Ellerslie 1051, Auckland, New Zealand
Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies.