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measuring boards

Created by: 25766 at: 3/11/2019 4:38 PM (3 Replies)

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3/11/2019 4:38 PM	Rate (0)
25766 Member Joined: 11/12/2018 Last visit: 1/8/2021 Posts: 7 Rating: (0)	I need some help please. I am measuring a board 20-50mm thick on a conveyor system to determine it's thickness. I plan on using a 4-20ma sensor back to a analog ampilifer for this. Then using this measurement "in a mathematic instruction" multiplied by a set number by a set number to determine a pack of boards height 20mm board X 10 boards per pack = 200mm pack height How can I set a tolerance + or - 5mm to switch an output alarm in the event of the pack being a board short 20mm board X 9 boards = 180mm = fail and alarm. Thanks

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3/11/2019 4:44 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 1/19/2021 Posts: 20899 Rating: (2303)	Which measuring range correspond to the 4-20 mA? 4 mA =? mm 20 mA =? mm

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3/11/2019 5:33 PM	Rate (0)
25766 Member Joined: 11/12/2018 Last visit: 1/8/2021 Posts: 7 Rating: (0)	The sensor will be set app 1m above the conveyor 20mA=1m distance between sensor and conveyor 4mA=500mm distance between sensor and product but adjustable in the sensor

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3/11/2019 6:44 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 1/19/2021 Posts: 20899 Rating: (2303)	In the appendix a simple example, that the principle should show you. Attachment Tolerance_control.zip (23 Downloads)

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