[foxboro] filter 4-20 signal

Does any of you guys know how to "filter" a 4-20 signal? I have a temp 
signal that varies a lot from 20°c to 40°c, we plan to use it in automation, 
but I need to get rid of the "peaks", so if the average temp in a 1minute 
time periode is approx 35° but it showed peaks from 22 to 38,I need to show 
the operator the avgtemp of 35° and use this avg temp in the auto control. 
I'm using a sequence now, but I'm sure there are far better sollutions.

Thanks & Rgds,

Dirk Pauwels - DCS coordinator
Engineering dept.
Lawter International BVBA
An RSM Company
Ketenislaan 1c ? Haven 1520
B-9130 Kallo, Belgium
T.  +32.(0)3.570.95.97/ Mob. +32.(0)497.428.300
F.  +32.(0)3.570.16.09
E mail: dirk.pauwels@xxxxxxxxxx

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