Leak detector for flammable chemical cabinet

[h0ckeypuck]

I need to install a leak detector in the bottom of a flammable chemical cabinet. The sensor needs to detect a spill immediately (float style detectors take too long to activate)and provide for alarms/shutoff valve control. Explosion proof would be nice. Cheap would be too! Any recommendations?

 

[nbucska]

What exactly do you want to detect ? leaking bottle or
imperfect seal of cabinet door, etc.?


<nbucska@pc33peripherals.com> omit 33 Use subj: ENG-TIPS
Plesae read FAQ240-1032

 

[h0ckeypuck]

The cabinet is used to repack chemicals from bulk storage tanks(IPA, Acetone, etc) into 55 gallon drums or 1 gallon bottles. I am using a scale to detect the weight of the drum as its being filled and I want the nitrogen actuated fill valves to close if for some reason the drum or bottle is overfilled.