Forgot to mention I have also looked at
http://www.ia.omron.com/products/family/2973/specification.html
and this
http://www.automationdirect.co.uk/acatalog/P3000_Programming.html
Hello Everyone,
I have been a little problem to solve and I could do with some input.
I need to trend a vacuum pressure level inside a tank at approximately 10Hz (every 0.1s). I was going to go with a Allen Bradley PLC and a sensor with an analogue output of 4-20mA or 0-10volt but the budget...
Hello
Thanks for the help everyone. I have managed to piece together enough information to build a small test rig. I have made some calcs that I have based the sizing on and the real test data will either prove or dis-prove my calcs.
Once again thanks everyone.
Trevor
I have found this on a Physics forum. Which would seem to solve it for me and I can take time steps every 0.1s until it is completed. How do I find out what the velocity of the air will be? Once I know this I can then calculate the flow rate through the different sizes of pipe. How do I know...
Thanks for all of the comments and help so far.
If I do need to solve the problem and (this is only a R&D project so I will be collecting a lot of data of how it behaves) I just want to try and size up the correct pipe.
I was only going to use 1 quarter turn ball valve between the two tanks...
Hello Everyone,
Doing a little R&D at the minute and I have come up against a wall so please help.
There will be a small tank of 50 litres and larger tank of 450 litres. I will suck out the 450 Litre so it is as close to an absolute vacuum as possible ( lets assume a perfect vacuum to keep...
