engineering fundamentals Discussion Forum
Directory | Career | News | Industrial
Home Membership Magazines Forum Search Member Calculators






List Recent Topics | Start a New Topic

<< Previous Message No. 10525 Next >>
Author: narayan
Time: 02/06/03 15:02 PST
This is a reply to message no. 10498 by smog
Reply | Original Message | New Topic | List Topics | List Messages on This Topic
Current Topic:
Toxic and Flammable Gas detectors
Dear smog,

A continuous gas (or fire or heat detector) is one that is installed and as named, works all the time.  Any time the level of gas exceeds the specified threshold, it initites a signal.  This signal in turn may trigger a visual and/or audio alarm, or initiate an executive action like opening the deluge valve and sprinkler system, or shut down a facility.

A spot detector is used to measure the present level of gas intensity.  If it is below the threshold, a decision to permit some work may be taken.  Typically, if you want to cut or weld or do other work that may initiate a fire, you want to ensure that the place is free of gas.  Generally these detectors are portable, and used in conjunction with Permit to Work systems.

I dont know if this addresses your query, if not clarify your question please.

[ List Replies to This Message Only ]

Home  Membership  About Us  Privacy  Disclaimer  Contact  Advertise

Copyright © 2018 eFunda, Inc.