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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
Once, adv.:
Enough.
-- Ambrose Bierce, "The Devil's Dictionary"
Enough.
-- Ambrose Bierce, "The Devil's Dictionary"
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Can anybody told me how to tune Baldor Linear motor .
Can any one suggest the most suitable instrument for Flow measurement under Gravity flow conditions. The service is Produced Water after Crude Oil Separator.
New Replies:
Electromagnetic flowmeter would be my choice. Loop powered if the water conductivity is high...
By Mark Thomas on 12 October, 2009 - 10:13 am -
Coriolis would be the best option long term. With other types of flow meters you will see long term...
I'm looking for a relay which will operate if the input has energised x times in y minutes
use of 1-E vs 3-E Drum level control in power boilers
New Replies:
By srijith.s on 9 October, 2009 - 1:09 am -
Dear chandrakanth sir,
i am srijith working as an instrumentation engineer. with the information...
from the Electrical engineer department...
Medium Voltage Variable Frequency Drive to Control the Speed of MotorI am electrical engineer by profession and currently I am doing research on medium voltage Variable Frequency drive (also called as VFD, VSD, AC drive, VVVF, etc.)
New Replies:
Better you go for MV drives with Multi cell technology which are now a days comparatively very...
INTERFACING SIEMENS S7 PLC WITH ABB AC800M + COMPACT HMI
New Replies:
By Rob on 8 October, 2009 - 11:02 pm -
Yes, you can if you wish. No, you don't require any other methods.
I assume your S7-313C PLC...
abb 800xA Communication problems
New Replies:
By allan.evans on 8 October, 2009 - 7:46 pm -
We had the same problem, got quoted $NZ many thousands to have it fixed. System was also...
So, I believe we have network communication problems, I think rj45 connectors. So the controller it...
Hi
I'd the same issue having two redundant AC800M controller switched (actualy not fully...
volume unit conversion from SCF to ACF
New Replies:
By Bruce Durdle on 8 October, 2009 - 3:00 pm -
This involves the gas laws - P1 x V1/T1 = P2 x V2/T2.
Using V as a prefix for Actual and B for...
Interested in anyone's experience with Alarm Notification Software
New Replies:
Thanks to all who responded to my post.. the comments were very helpful...
i have some confusion about control valve choking phenomena...
New Replies:
By tushar on 7 October, 2009 - 8:10 am -
dear ben,
as u commented that choking occurs when Pin/dP is greater than 2. But as pressure drop...
Equal percentage characteristic
New Replies:
By Kev Jones on 6 October, 2009 - 9:59 am -
The exponent in the inherent flow characteristic curve is constant (equal) ergo equal percent.
...
Minimum opening for Butterfly control valve??
New Replies:
By Jan on 5 October, 2009 - 1:57 pm -
Hi Dasa,
Normally I use an orifice 2-3 meters before or after such valve to get a laminar flow.
...
Process of selecting Control Valves & DCS settings
Grass root project looking a cheap way of bringing groups of temperature signals that are in close proximity into a DCS
New Replies:
By Jonas Berge on 2 October, 2009 - 10:33 pm -
There are many kinds of multiplexers: there are HART multiplexers and
temperature sensor...
By David on 28 September, 2009 - 7:10 pm -
HART is an FSK signal superimposed onto a 4-20mA signal from a field transmitter. The HART signal...
>> groups of temperature signals <<
> I would think that you mean thermocouple...
choosing the safest and economical flow meter
New Replies:
Before you choose a solution make sure that you understand how accurate the measurement must be...
By Mark Thomas on 1 October, 2009 - 1:56 pm -
Alee, please send me your process data and I will size out a Coriolis flow meter and provide you...
sorry for the late reply, after comparing the quotations for turbine, Coriolis and Ultrasonic flow...
By Rohit Chandak on 30 September, 2009 - 1:33 pm -
Other technology than what Mark recommended that goes very well on this applications are Turbine...
from the instrumentation and control department...
want some guides about power plant instrumentation and control
want some guides about power plant instrumentation and control
Is it possible to convert a real number format to an integer number format?
New Replies:
By Jan Steen Nielsen, Denmark on 1 October, 2009 - 5:35 am -
Hello Luiz and others as well
To solve your problem you do this:
1) Go to the website...
Coal flow where to start?
How to implement the linearization algorithm in order to support proper flow metering?
New Replies:
By Rohit Chandak on 30 September, 2009 - 1:22 pm -
If I understood your question properly I think you are looking for a linearized table that has to...
Proper selection of a online flow sensor for measurement of air flow in 3" pipe
New Replies:
By Rohit Chandak on 30 September, 2009 - 1:19 pm -
Orifice Plate has been most standard instrument on such application but over the years engineers...
By Daniel M on 27 September, 2009 - 12:40 am -
If you need measure NORMAL m3/h, you can use Thermal Dispersion flow meters, or of course...
measuring or detecting sugar level
New Replies:
Hi,
If the sample is Homogeneous and you would like to measure Sugar Concentration. I suggest go...
from the Process Automations department...
Installation guide for ACM 12 card in Yokogawa centum cs 3000 DCSStep by step Installation guide for ACM 12 card in Yokogawa centum cs 3000 DCS
New Replies:
By Darren on 30 September, 2009 - 3:53 am -
Hi Dam
Yes the ACM12 is hot swapable, no shutdown of the system required.
If you are...
Dear Atetos,
please kindly consider my request from this site.I will be glad to have your...
Dear sir,
Please send me a personalized email request and I'll send you the information you need...
Discussion about osisoft pi
New Replies:
By Jack Wilkins on 29 September, 2009 - 4:07 pm -
Have you considered other vendors? OSI PI and Aspentech IP21 both have lots of moving parts and...
Application involving high vibration and oil/dust contamination, choosing between using internal relay contacts, external electromechanical relays, or SRRs.
New Replies:
By M Griffin on 28 September, 2009 - 9:30 pm -
I assume that all your output loads are 120VAC. Given your concerns about reliability, I would...
Difference between PID Control & Dual PID Control function in micro processor based temperature Controller
New Replies:
Actually this topic is interest me also, i hope there some one could help me ... thx...
Replacement of ABB Infi 90 DCS controllers, IMMFP12 with new ABB BRC 300 controllers
Ultrasonic sensor from SICK, problem, with connection
New Replies:
By old_digger on 27 September, 2009 - 2:45 pm -
Hi,
In the world of Sick (and many others) the NC means Normally Closed output. The opposite is...
Please give your opinions, pros and cons.
New Replies:
By Harry Kok on 27 September, 2009 - 3:24 am -
There are more solutions. Have a look at www.spiritit.com and check our Flow-X series of flow...
How to calibrate Gas Vortex flow meters, with Gas or liquid?
New Replies:
By Daniel M. on 27 September, 2009 - 12:10 am -
Hello Amid
vortex is a velocity meter. The K factor determined with water, is valid for ANY...
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