adccommunitymod (AutomationDirect) asked a question.
Ultrasonic level sensor question
Created Date: November 17,2013
Created By: dieseltwitch
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I'm wanting to use US level sensors in a mobile application. I'm worried however that the material moving around inside may splash up on the bottom the the sensor. Will droplets effects the reading? Also I'm getting the inside of the tank coated with Teflon to aid cleaning between material changes. Could I get the bottom of the sensor coated as well? The material I will be using has a viscosity of 400-1500cps about that of warm honey
Created Date: November 17,2013
Created by: dieseltwitch
I'm wanting to use US level sensors in a mobile application. I'm worried however that the material moving around inside may splash up on the bottom the the sensor. Will droplets effects the reading? Also I'm getting the inside of the tank coated with Teflon to aid cleaning between material changes. Could I get the bottom of the sensor coated as well? The material I will be using has a viscosity of 400-1500cps about that of warm honey
Created Date: November 17,2013
Created by: Tom Jenkins
You will probably have problems, but I'd verify it with your supplier.
If you know the specific gravity of the fluid a pressure sensor would probably be more reliable. You could use a diaphragm seal to separate the sensor from the fluid. If sloshing will be a problem you could also use an orifice to damp the fluctuations and perhaps digital filtering in your program if the signal goes to a controller.
Created Date: November 17,2013
Created by: dieseltwitch
You will probably have problems, but I'd verify it with your supplier.
If you know the specific gravity of the fluid a pressure sensor would probably be more reliable. You could use a diaphragm seal to separate the sensor from the fluid. If sloshing will be a problem you could also use an orifice to damp the fluctuations and perhaps digital filtering in your program if the signal goes to a controller.
I should have mentioned that the system won't be used while moving. Only when the rig is stationary will the level sensors or any other part be used.
Created Date: November 18,2013
Created by: Adisharr
I'm with Tom, if any of that gets on the face, you 're probably going to have issues. In my experience, materials that harden on the face and 'become ' part of the transducer tend to allow the sensor to function. In your case, it will probably dampen the signal enough to be useless.
Is there any way to have the sensor removable and have them install it when the tank is immobile?
Created Date: November 18,2013
Created by: dieseltwitch
I 've thought about that... Problem is the guys in the field are not careful. I'm trying to develop a system that keeps their interaction to a minimum. I'm wondering of a Teflon coated float meter might be better.
Created Date: November 18,2013
Created by: rex
Level sensor problem
I am having a lot of problems with the LU29-00 level sensor, I am using them on five oil tanks, 8 m and 10 m. They tend to be very unreliable giving errors all the time.
I have worked with other ultrasonic level sensors and never had this kind of problems.
Does anybody have work with those sensors?