adccommunitymod (AutomationDirect) asked a question.
Created Date: July 18,2013
Created By: automa
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I am working on a project where we will need to read the weight of 4 Vessels and 4 packout stations. This means I will need to be able to interpret the signal from 20 load cells into a P3000. The problem is that the load cells are 10 '000KG and they would like a precision of .1 or .01.( They know the accuracy will be less than that but that what they want) That means that even with a 16 bit processor I will not have the resolution I need through a signal conditioner. Is there a better way to do this? I was going to see if I can find a signal conditioner with a modbus output but the cost of this would be very high. Not to mention trying to trim the output from the 4 load cells on each vessel would not be fun.
Created Date: July 18,2013
Created by: plcnut
Try Futek:
http://www.futek.com
Created Date: July 19,2013
Created by: Bob S BN
To get close to the resolution you 're after, and get your 4 cells per bin calibrated, I think you will need to let the weighing experts get your weight number, and then send that number to the PAC.
Something like this might do the trick...
http://www.kistlermorse.com/pdf/tech_97-7052.pdf
This company has many other controllers/conditioners, and I'm sure other companies can do the job as well.
Hope this helps,
Created Date: July 18,2013
Created by: automa
I am working on a project where we will need to read the weight of 4 Vessels and 4 packout stations. This means I will need to be able to interpret the signal from 20 load cells into a P3000. The problem is that the load cells are 10 '000KG and they would like a precision of .1 or .01.( They know the accuracy will be less than that but that what they want) That means that even with a 16 bit processor I will not have the resolution I need through a signal conditioner. Is there a better way to do this? I was going to see if I can find a signal conditioner with a modbus output but the cost of this would be very high. Not to mention trying to trim the output from the 4 load cells on each vessel would not be fun.