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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
A large number of installed systems work by fiat. That is, they work
by being declared to work.
-- Anatol Holt
by being declared to work.
-- Anatol Holt
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Coriolis Flow Meter plugs up after few minutes of operation.
New Replies:
Hello FT
may be You need to be filter in front of the meters or strainers or upgrade the size of...
What is input span?
New Replies:
By John D on 9 November, 2009 - 9:08 pm -
Thank you very much for your help.
Much appreciated.
John D....
By issac on 9 November, 2009 - 5:34 pm -
Depending on context, input span is either
- the range of input, from lower to upper
- the top...
By Roy Matson on 9 November, 2009 - 5:13 pm -
It wants to know what the span of the device you are connecting
e.g.
Pressure transmitter 50 -...
I need to tune the process of control valve.
Two OIU's crashed at our facility and no matter what parts I throw at them, they won't come back.
New Replies:
Wow!! surprised that some old OIU's are still out there doing their jobs...
I agree, check the...
By Allan Evans on 8 November, 2009 - 1:14 am -
Oh memories, memories, the first Bailey OIU and the best HMI they ever made.. Diagnostics, chunky...
Drum level swelling control problem solved, but we don't know why our solution worked...
New Replies:
By alois66 on 8 November, 2009 - 5:10 am -
...and you can trip the boiler due to low-low level! There are some important things to be taken...
How to select a control valve?
New Replies:
By rajiiv on 8 November, 2009 - 2:40 am -
valve specifications are as below at normal flow
1. inlet pressure - 700psig
fluid - ...
By Roy Matson on 7 November, 2009 - 2:27 pm -
We need more information.
What are you trying to control, flow, level, pressure?
What is the...
I would like to know the operation of positioner.
New Replies:
Mr.Hopkins,
I would like to answer your questions. First of all, when it comes to the issue of...
Need explanation of Speedtronics partial load control
New Replies:
By definition, Base Load is full load. Anything less (preselected load, manual setting) is partial...
DEHN Blitzductor CT ex(i) or DEHNconnect RK (i) Surge arrestor Selection in Ex(i) loop
Problem with forced coils in Quantum Proworx
I want to know the difference between barg and bara.
New Replies:
By Bruce Durdle on 5 November, 2009 - 1:51 pm -
Or you can use the standard value of atmospheric pressure - 1.01325 barA.
But if you are...
By Vallaban on 5 November, 2009 - 2:21 am -
For getting the approximate value while converting bar g to bar a then bar a = bar g + 1.02. That...
looking for vibration monitor
New Replies:
By Symphony on 5 November, 2009 - 7:55 am -
Can anyone tell me the vendors/distributors of Solar Turbine or Bentley Nevada....
Operating the Turbine Generator on Preselected Load
New Replies:
Preselected Load Control is really just a lazy man's way of not having to...
By Walter on 5 November, 2009 - 5:21 am -
Thanks for responding this post.
The question is about the behavior of the generator against big...
What causes the distrubances? Frequency excursions? Fuel supply disruptions? Dirty oil?
...
Modbus and HART protocol connection
New Replies:
By K.Rajasekaran on 5 November, 2009 - 5:12 am -
Pl visit www.renuelectronics.com. You can see the product required. The model is Gwy-800....
Most reliable way for control of Waste Heat Recovery units on Gas Turbine Outlet
New Replies:
Trying to control gas turbine exhaust heat input to a waste heat recovery boiler with dampers is...
Need for an help to choose the best fieldbus in a Generating Power Plant
New Replies:
By James Powell on 4 November, 2009 - 1:32 pm -
Both Foundation Fieldbus and PROFIBUS have been used successfully to do close loop control. One of...
By Dick Caro on 3 November, 2009 - 6:36 pm -
The comments made by Powell and Steinhoff are very true for modern versions of Profibus and...
By James Powell on 3 November, 2009 - 1:19 pm -
Dear Fabrizio,
For comparing FF and PROFIBUS, there is a good white paper on...
Thank you all for the answers, but I have a new issue: I know that FF premise to substitute easily...
By Steinhoff on 3 November, 2009 - 3:27 am -
> Dear Mr. Vahid: While Profibus DP and Profinet are excellent fieldbus technologies, they have...
By Dick Caro on 2 November, 2009 - 2:24 pm -
Dear Mr. Vahid: While Profibus DP and Profinet are excellent fieldbus technologies, they have not...
Fire & Gas detection and alarming systems in Chemical Plants.
New Replies:
By syurish on 3 November, 2009 - 8:38 am -
Please check one of them here:
www.sensorsportal.com/HTML/DIGEST/october_09/Gas_sensors.htm...
Hi
one of the famous gas detection manufacturer is MSA , below is the link:
...
Spurious diagnostic alarms from MKV panel
Trying to use a Microcor III PR controller made by Coreci. Age unknown. The controller works in manual mode, but I am unable to decipher tuning and programming codes without a manual. Any help locating a manual for this controller would be greatly appreciated.
New Replies:
By Selene at Gefran USA on 2 November, 2009 - 2:43 pm -
Hi,
User's manuals and datasheets for obsolete Gefran products are available online at...
need to scale down the voltage in to 0 - 9 for running the motor in safe side
New Replies:
By M Griffin on 2 November, 2009 - 2:07 pm -
The normal method of doing this is to use a signal conditioner module with a DC input and a DC...
Can we use a DP transmitter to measure the water level in a vacuum tank? If not, what is the solution for it?
New Replies:
By Roy Matson on 2 November, 2009 - 12:54 pm -
Is this something that just started to occur?
Are you the original poster?
Is the probe in a...
Cv rating of pressure regulators
New Replies:
By Roy Matson on 2 November, 2009 - 12:31 pm -
Most of the regulators I buy are rated in Volume units, gallons per Minute, CFM or the metric...
Hello
The Cv is the flow coefficient of the pressure regulator or the control valve and it is...
Correct position for flow measurement?
New Replies:
By wboyes on 1 November, 2009 - 7:05 pm -
You want to put the measurement device as far away from sources of perturbation of the flow as...
By Roy Matson on 1 November, 2009 - 1:28 am -
It's more common to see the flow element upstream of the valve but provided there is sufficient...
Standards for Safety PLC in Steam Boilers
New Replies:
By Hase on 1 November, 2009 - 12:39 pm -
I'm really surprised that there aren't some widely accepted standard for burner management system...
abb 800xA Communication problems
New Replies:
By PChandra on 1 November, 2009 - 9:13 am -
Hi,
i Have gone thr such a situation more than 10 times. but your problem is not clear to me.
u...
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