Thread: RTDs suck!
View Single Post
Unread 07-20-2004, 09:00 PM   #3
bigben2k
Responsible for 2%
of all the posts here.
 
bigben2k's Avatar
 
Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
Default

Hum... to capture an actual change, if there is one? (yeah, there shouldn't be one)

Check out these spec sheets:

Class A PRTD element
http://www.omega.com/Temperature/pdf...N_2PT100KN.pdf

Class B PRTD element
http://www.omega.com/Temperature/pdf...D_ELEMENTS.pdf


Response time:

Class A
Water velocity: 0.4 m/s
50% response: 0.2 second (best element)
90% response: 0.6 seconds

Class B
Water velocity: 0.4 m/s
50% response: 0.7 second (best element)
90% response: 2.0 seconds


I suppose that the response time isn't important, given my setup, but it would be, under the original idea of using a controller for a fan-based cooling solution.
bigben2k is offline   Reply With Quote