Datalogging pressure in the vapor space of an HCL tank

[Blazer406]

I need to be able to datalog the pressure in the top of a 6500 gal 37% HCL tank to see what the pressure does as the tank is being loaded by a tanker truck.

We used some labview items back in college, but that has been years ago.

The pressure transducer needs to be capable of corrosive fumes and be very low pressure and accurate.... 0" - 20" water column.... or close.

The more simple and cost effective the better.

It would be nice to go outfit this sensor in the field and hook into a laptop and log it during the loading cycle....

 

[DRWeig]

MoltenMetal gave you the answer in the ME forum. HCL is not friendly, and low-differential pressure sensors are not robust.

Talk to industrial manufacturers for the sensor.

Assuming your data logger can be outside the corrosive atmosphere somewhere, check Hobo or Lascar for cheap but fairly good ones. Check Measurement Computing for high-end but pricey. I've used all of them in recent years.

To save others from reading your post twice, here's a link to your other one:

http://eng-tips.com/viewthread.cfm?qid=320679

Please avoid double-posting in the future.

Good on ya,

Goober Dave

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