Industrial fire alarms work by sending an audio visual signal when the alarm system first detects smoke in an area that is protected by a human crew. The sound emitted can often be a computerised voice, further encouraging people to evacuate the structure, and more precise instructions on how to leave the building safely. Once the source of the alarm has been located, the rest of the system works by calling the local fire department for assistance. This often works out much cheaper than calling the police, which is when many people tend to neglect following the relevant emergency procedures anyway.
Most modern industrial fire alarm systems also feature air sampling detectors. These are attached to the actual fire detection alarms, and they send out an audible ‘beep’ when they detect any moisture in the air sample. The reason for using air sampling detectors is that they are far more sensitive than just using surface detectors. Surface detectors only pick up surface heat, so if there is any water present, the bulk of the ‘beep’ will be in the air, and not in the sample itself.
But air sampling detectors have a number of other advantages over surface mounted alarms. For one thing, they have a far longer operational life span, which means that they are more cost effective in the long run. They also have a far higher reliability factor, which means that you are more likely to have your industrial fire alarm systems up and running in the event of a fire for a longer period of time, and for a much longer period of time too – up to 30 years on average according to one industry expert. Air sampling alarms are also incredibly easy to maintain over the long term, they don’t require any regular overhauling like their surface mounted counterparts do.