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
Twitter Feed
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
Arithmetic is being able to count up to twenty without taking off your
shoes.
-- Mickey Mouse
shoes.
-- Mickey Mouse
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.
Is a Separate Earth for Intrinsically Safe Instruments required?
New Replies:
By Susi Sukaisih on 27 August, 2009 - 8:54 pm -
Dear Dick,
I'm new in Instrumentation, I need some reference about ISE Bar, how to Install it,...
Seeking recommendations for monitoring the fuel level in tanks remotely...
A problem with not seeing when a yaw gear fails causing the turbine to be yawed by just one yaw motor instead of 2. We want to get some kind of component for monitoring baseload current for pitch motors and trippng on overload.
New Replies:
By B Doyle on 24 August, 2009 - 4:25 am -
Thanks Robert- I'll check that out!...
Take a look at the Schneider Electric TeSysT Motor Overload Relay. It is available with numerous...
Customer needs high accuracy resistance measurement to be logged into database and a barcode with serial number printed out.
New Replies:
By Gary Linn on 22 August, 2009 - 10:51 pm -
Most high end meters have high speed interfaces that support thousands of reading per second. ...
By Steve Myres on 22 August, 2009 - 8:24 pm -
You're making this too complicated. If the DMM doesn't have an RS232 port, any many do, you don't...
By James Ingraham on 21 August, 2009 - 6:53 pm -
Had no luck trying to find an OPC server for GPIB or LXI. Had no luck looking for WonderWare...
By curt wuollet on 21 August, 2009 - 3:02 pm -
Yes, this is right up against one of the biggest problems with shrinkwrap closed source systems....
By M Griffin on 21 August, 2009 - 11:58 am -
Some meters have an RS-232 interface. I don't know if you can do anything with that in Wonderware,...
By curt wuollet on 20 August, 2009 - 3:55 pm -
Labview would be a very expensive way to accomplish that. What does WW have to say? They may...
In reply to M Griffin
You are correct. I need a way to get information from the meter to...
By curt wuollet on 19 August, 2009 - 7:01 pm -
I think we are talking about the same thing. It would depend on what WW exposes to the world. One...
By M Griffin on 19 August, 2009 - 11:42 am -
In reply to curt wuollet: I think getting Wonderware to talk to it is the problem he's trying to...
By curt wuollet on 19 August, 2009 - 1:37 am -
You can use any of those. My choices would be RS232 if available, as it's cheap. Or GPIB (IEEE488)...
first question - identify a kit which can help build a system to do proximity measurement along with direction
New Replies:
By Brian Beal on 22 August, 2009 - 9:27 pm -
I have used the Senix sensors in a very tough application, and found them to work great. You...
I think that ultrasonic sensors could be applied with triangulation techniques to solve your...
By Phil Corso on 19 August, 2009 - 10:39 pm -
TheBiggestBangTheory... The August issue of the hobbyist magazine, "Nuts and Volts"...
Does anyone have any knowledge about V-Cone flowmeters?
New Replies:
By Steve B on 21 August, 2009 - 3:22 am -
Cone meters are now covered by the API MPMS 22.2 document. API 22.2 is used to report the...
Problem Selecting Mass flowmeter size for measuring thick liquid
New Replies:
You may not have noticed this but in recent times coriolis meter manufacturers have started showing...
By Roy Matson on 12 August, 2009 - 10:48 am -
Talk with your coreolis flowmeter vendor, they should be able to tell you the pressure drop across...
If you install 1" flowmeter not only the pressure drop would be significant but also the...
Flow measurement of highly viscous material as line is over sized and this velocity is low,thereby decreasing accuracy
New Replies:
By JMW on 20 August, 2009 - 9:42 pm -
I'd suggest what you actually have is a laminar flow profile with much of the fluid moving very...
By Rohit Chandak on 14 August, 2009 - 12:29 pm -
At the first thought similar to David but I think over sized pipe with low velocity viscous fluid...
By Roy Matson on 14 August, 2009 - 1:27 am -
What about a straight tube coreolis, that shouldn't create a bottleneck, more expensive than a mag...
By David on 12 August, 2009 - 10:40 pm -
The accuracy rating of the Siemens Ultrasonic clamp-on transit time flowmeter starts at 0.3 m/sec.
...
Help in finding the level on ammonia on a closed tank, using a Druck DPI 610
New Replies:
By Steve Hoffmann on 20 August, 2009 - 12:32 pm -
Use of a tank roof mounted Honeywell-Enraf series 854 servo gauge, you can't go wrong. check out...
By Roy Matson on 19 August, 2009 - 4:26 pm -
I assume your tank is under pressure so you will need a DP cell with the LP tap connected to the...
I am Facing Low Flow measuring Problem in Electromagnetic Flowmeter Siemens SITRANS F M MAGFLO Model MAG 6000.
I'd like to create system which can approximate number of available space in the parking for people from the outside of the company :-).
New Replies:
By et on 19 August, 2009 - 9:34 am -
Hi , we're into smart card car parking. Just contact us and perhaps we can talk.
...
what is difference?
New Replies:
By curt wuollet on 18 August, 2009 - 6:47 pm -
I am an electronics type, steeped in semiconductor lore. I am not an electrician. Conventional flow...
By Ken Emmons Jr. on 18 August, 2009 - 8:09 am -
I didn't think this was a physics forum. Conventional flow vs. Electron flow ... That's taking the...
By William Sturm on 17 August, 2009 - 9:51 pm -
An NPN or sinking output accepts voltage and sinks it to ground to complete the circuit. A PNP or...
By curt wuollet on 17 August, 2009 - 9:27 pm -
It is confusing, not the least because they use conventional current flow rather than electron flow...
By Mark on 17 August, 2009 - 5:35 pm -
Dear Confusedsunny,
I'm a little confused about "A PNP transistor is used for the sourcing...
what's the difference?
New Replies:
By vahid on 17 August, 2009 - 5:19 pm -
Neil Mounro,
Thank you for your reply.
Refer to your reply I understand that we have to take...
By A.ZUBAIDY on 17 August, 2009 - 8:20 am -
Hi all
I have system certifcate as SIL2 (Yokogawa DCS). I want to install the sensor is SIL 3...
Doubts about "generic" instrument
New Replies:
Ricardo,
You might be better giving us more details/better context to judge the use of these...
Hi Mr.Ricardo Almarza,
Get different answers with different SIL selection techniques..
Which...
Need to find a signal conditioner to convert 0-60KOhms to a 4-20mA or 0-10V output.
New Replies:
By M Griffin on 14 August, 2009 - 1:21 am -
An Analog Devices 7B isolator (or one of the clones from Dataforth or someone else) will give you...
By Roy Matson on 14 August, 2009 - 1:18 am -
Most of the resistance to Current transducers are actually Voltage to Current taking the slidewire...
7FA Tripping on Low Hyd. Trip Oil pressure
New Replies:
Hi,
In addition to what has been suggested, I understand that it would be of some help to you to...
I would like to find a sensor to measure the density of sludge flowing in the pipe.
New Replies:
By Suvit Lee on 12 August, 2009 - 12:39 pm -
Did you ever tried this? I'm interested in using one, just wanted to know reliability and...
Reading Type K thermocouple from 25 m distance
New Replies:
probably you won't have signal loses but you may have EM noise coming from outside the cable, to...
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 Nerds in Control, LLC. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!