Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Neat Stuff
Visit our shop for nerds in control lifestyle products.
Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
So far as I can remember, there is not one word in the Gospels in
praise of intelligence.
-- Bertrand Russell
praise of intelligence.
-- Bertrand Russell
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss/
To get a personalized feed, become a member at no cost.
from the interesting department...
Differential pressure flow measurement
I am experiencing a situation with my differential pressure flow transmitter.
When both ports of the transmitter are opened to the atmosphere, I register zero differential pressure, but as soon as I connect the orifice whose both ends are sealed, I register pressure difference, which affects my flow measurement.
The range of measurement is 0 to 25KPa.
Could someone share some experience with me as to the possible cause?
pmensah at abosso. com
When both ports of the transmitter are opened to the atmosphere, I register zero differential pressure, but as soon as I connect the orifice whose both ends are sealed, I register pressure difference, which affects my flow measurement.
The range of measurement is 0 to 25KPa.
Could someone share some experience with me as to the possible cause?
pmensah at abosso. com
That's why you should have a 3 valve manifold so you can zero the transmitter at line pressure. This will reduce the zero error.
Roy
Roy
From Control Engineering magazine...
Related articles from Control
Engineering magazine
- Budget-friendly temperature control unit
- Upgrading control for better polymer performance
- Software pinpoints process interactions
- BP selects SIS for UK deployment
- Automation vendors boost biofuels
- Cyber security issues take center stage in 2009
- AIC Series presents new high energy storage chokes
- Decrease arc flash risk with new motor control center option
- Relays: Slim industrial relays have push-in terminal sockets
Above articles copyright 2009 Reed Business Information.
Subject to its Terms of Use.
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2009 Control Technology Corporation. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!