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Posted By Telstar
Looking for some clarification please. I believe that the only testing requirement on smoke machines used to test enclosure integrity prior to use is to PAT test. ie: no requirement for calibration. Am I right?
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Posted By Peter Wild
My answer would be that you are right,only if your machine is mains supply.( and not battery). Then also be sure to check size of fuse fitted and the integrity of the cabling. Not just an insulation test.
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Posted By Dave Wilson
This is a very simple piece of kit which is used to provide non hazardous smoke within a respirator zone (enclosure( why you expecting the smoke to be delivered at a set temp / pressure / colour etc.
insert can, switch it on, heats up,when light goes out or on (model dependant) press button = smoke! fill enclosure with smoke, look for leaks!
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Posted By Frank Hallett
Peter - ALL electrical equipment is required to be suitable and properly tested! The EaW Regs cover all electric equipment from those driven by a hearing-aid battery all the way up to below public transmission voltage.
Incidentally, the EaW Regs make no mention at all of what is understood as the PAT Test [which is actually Portable Appliance Testing Test!!] although I do agree that it is an essential; nor do the EaW Regs differentiate between the need for "hard-wired" equipment and "pluggable" equipment in the need for suitable test regimes to be determined by the ubuquitous "usage" risk assessment
As for the question regarding calibration - I'm not aware of one but there are plenty of others who may know different and I will be happy to hear from them.
Frank Hallett
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Posted By Brett Day
Smoke machine definately would come under the requirement for PAT testing, as for calibration most smoke machines are on/off devices i.e. when you want smoke turn it on and once you've got enough turn it off.
There are devices used in the film & theatre industry that give a set level, these work by running constantly til up to the required amount then it switches to a timer that gives a timed burst of smoke at timed intervals to maintain the level.
The timers could be calibrated but given the timer is on rotary control then the technician alters the timer to suit. If the tier appears to be really out of kilt then it is replaced.
The film & theatre industry rarely bother calibrating the timers, they make sure they are PAT tested on a reguler (use/damage defined) basis.
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