What is an Explosimeter? How does it work?

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Asked on May 26, 2021
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1. Explosimeter is used for the detection of HC gases
2. Sample of air is taken and passed on one heated arm of a balanced wheatstone bridge
3. The current for the wheatstone bridge is provided by the dry cells
4. Combustible gases burn due to the heated filament and its temperature rises causes it to increase its resistance
5. The scale become unbalanced causing the meter to deflect which is proportional to the change of resistance
6. Explosimeter cannot be used in an INERT atmosphere because INERT atmosphere does not have Oxygen to support combustion
7. It does not show toxicity levels

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Posted by marinetales
Answered on May 26, 2021