Results 1 to 3 of 3

Thread: Smoke/heat detectors in MRI rooms question

  1. #1
    Join Date
    Jan 2008
    Location
    Dayton, OH
    Posts
    52

    Smoke/heat detectors in MRI rooms question

    Are there many manufacturers who do not have the magnetic reed test switches in their smoke/heat detectors? Apparently this can cause issues in MRI rooms (imagine that). We are looking to revise our standard specifications to prevent future issues. So far we have a recommendation for a single type of System Sensor smoke detector. Anyone else run into this? I know we could use a Vesda system for smoke and a linear heat cable for thermal but that seems overkill for a single room.

  2. #2
    Join Date
    Oct 2007
    Location
    New Jersey
    Posts
    4,881
    Quote Originally Posted by Bigrig View Post
    Are there many manufacturers who do not have the magnetic reed test switches in their smoke/heat detectors? Apparently this can cause issues in MRI rooms (imagine that). We are looking to revise our standard specifications to prevent future issues. So far we have a recommendation for a single type of System Sensor smoke detector. Anyone else run into this? I know we could use a Vesda system for smoke and a linear heat cable for thermal but that seems overkill for a single room.
    Unless you have a relay base, most addressable smoke detectors use solid state devices, no mechanical switches. I may have a Siemens HFP-11 at home. I'll open it up and take a look.

  3. #3
    Join Date
    Jan 2008
    Location
    Dayton, OH
    Posts
    52
    Guess I am still a little old-school when it comes to terminology. Reed or Hall Effect solid state, both sense magnetic fields. But I should use the right term for modern devices! Thank you for looking. I actually have that device shop drawing in front of me now (have a renovation project with the XLS control panel). It does not say anything about a magnetic test sensor so that may work.

    Fortunately most projects we deal with are totally sprinklered, so no devices are required in the room. However we do have clients that want either a preaction system or require smoke detection as an owner standard for such areas. Thinking about it I am surprised we do not have more preaction systems being installed in such areas with really expensive pieces of equipment.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •