A P P L I C A T I O N
N O T E


 
Home Products - New
Customer Service Suppliers
eNews Technology Center
Products Training


 
Balluff

back to Application Notes
Industry: Soap Mfgr
 Application: Level Control

Description: A soap manufacturer is using capacitive sensors to detect high level control in a bottle filling station. The original sensors were getting contaminated by spills and drippings from the caustic soap. Washdown also contributed to the failure of the sensors on a weekly basis.

Objective: To improve on down time, reduce failure rate, and improve on accuracy of level detection. Also, to eliminate the need of contact to the containers and to handle the caustic washdowns. When the media is put into the container and filled to level of the thru-beam, it would then break the beam. This would give a very reliable and repeatable signal to the stop control. Whereas the capacitive sensors could be false triggered by spills or poor contact.


The Solution :Because of the opaque plastic gallon jugs, the thru-beam optos were chosen because of their strong IR beam. The IR beam can penetrate through an empty container. The stainless steel thru-beam sensors and connectors were chosen because of the caustic washdown. To make the sensor array compatible to the AC controller, the 705-U1.1 Power supply and relays are used. Apertures are used on the sender side to cut down signal strength.



Balluff Products Used:
4 BLE-18E-PS-1P-E5-D-S4
4 BLS-18E-XX-1P-E5-X-S4
2 BES-516-705-U5

 

Copyright © 2005 Cross Automation