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Control.com topic...
Engineering
Topic: The Business of Automation and Control
from the Investors department...
New Flow Measurement Method
Originally posted by Abdolazim Hasseli on 9 April, 2014 - 1:09 am
How to find an investor of instruments.
New Replies:
> I am on same process of fund raising that A. Hasseli for a different products line. If anyone...
I am on same process of fund raising that A. Hasseli for a different products line. If anyone can...
Yes, I speak from personal experience. I created a new "next generation" vortex meter...
Dear Mr. Sandlin, I sent you two emails after we talked about NDA, I am waiting to have your...
Thank you JMW > What you do is prepare for a long hard struggle and don't waste your money on...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Instrument Control Loop
Originally posted by Waqar Ahmed on 26 June, 2014 - 3:18 am
Maintenance procedure of process control loop.
New Replies:
On any live process plant this procedure can be followed directly or be adapted slightly to suit...
Topic: Application Questions and Problems
from the Automation List department...
Control Valve Cycle Measurement
Originally posted by Gerald Beaudoin on 20 August, 2014 - 8:04 am
How to measure the control valve cycles?
New Replies:
I think you are making things more complicated than it needs to be. I have never heard about...
By Gerald Beaudoin on 27 August, 2014 - 1:43 pm -
Sure would appreciate any points of view on this one..... Cheers Gerald Beaudoin...
Topic: Continuous process industries, DCS questions.
from the Instrumentation and Control department...
Calculating Pressure Transmitter Range
Originally posted by Kamaraj on 21 August, 2014 - 7:42 am
How can we test Rangeability of Pressure Transmitter?
New Replies:
Thanks Mr.David & Thanks for all....
The word 'Turndown' is used in two ways. One use of the word turndown is to define how far a...
Dear Mr.David, In your Last Post you wrote that At 7 bar pressure, the reading could be 6.65...
The term in "FSO" in your spec means (percent) of full scale uncertainty. My selection...
Dear Mr.David, what you have wrote about NaK pressure Transmitter is Correct. My Ke2 model...
Dear Mr.Ashiq, NaK filled transmitter is pressure transmitter used for high temperature...
A colleague informed me that an NaK transmitter is a pressure transmitter with a local fill fluid...
The definition you found is a correct definition of rangeability. I have no idea what a NaK...
Hello Mr. Ashiq, Thanks for your information.. The transmitter output is 4-20mA only. when...
what is the output of this transmitter? suppose its output is 04-20 mA than zero and span would...
Topic: Engineering and workplace issues.
from the Forum department...
Customized Control System ExD Enclosure
Originally posted by Rashid on 27 August, 2014 - 12:46 am
We have procured a Customized PLC ExD Enclosure.

New Replies:
I have checked but the certificate does not have the the suffix U. The suffix number is 06 ATEX...
Check the certificate number of the enclosure as supplied. If it has a suffix -U, this indicates...
Originally posted by Paul Kraemer on 26 August, 2014 - 2:12 pm
Supply and exhaust air handling control method evaluation.
New Replies:
Thanks for your response Curt. Do you mean that you would control the differential pressure...
Topic: Engineering and workplace issues.
from the Operation support team department...
Generators and leading power factor
Originally posted by Bhagwan on 11 September, 2009 - 8:15 am
Leading power factor for backup generators
New Replies:
Our dear CAM, Somehow I forgot to include that electricity is one method of transferring torque...
Our dear CAM, Electric motors are driven by electric generators. Electric motors are devices...
my dear gentlemen, may i ask question, what makes prime mover burden itself? is it current,...
Topic: Engineering and workplace issues.
from the UL Shakedown? department...
UL Inspectors
Originally posted by RM on 26 August, 2014 - 5:11 pm
Now that we're on CPAP (UL's naughty list) we are being 'asked' to purchase their training package for better inspection results.
New Replies:
I have not observed them being especially picky but they do seem to have a different point of...
Topic: Power generation equipment control.
from the Mechanical department...
Exit Guide vanes of Gas Turbines
Originally posted by Izhar on 19 July, 2014 - 4:24 pm
Gas turbine exit guide vanes and how to use them
New Replies:
Hello There, Izhar, you did not mentioned about the blade tip clearances. Any increase in it...
Hello There, Dear Izhar, terribly sorry to hear about such a loss! However, thanks for such a...
Thanks for the feedbacks here is my response. Background: Combustion Inspection of Gas Turbine...
Topic: Engineering and workplace issues.
from the Instrumentation department...
Installation of Ex-ia Converters in Ex-ia Junction Box
Posted by giorgioCDB on 26 August, 2014 - 11:34 am
Installing Ex-ia converters in Ex-ia Junction Box instead of EX-d
Originally posted by Christian on 25 August, 2014 - 7:59 am
Adding two 4-20 ma signals to equal one 4-20 ma output signal without a PLC
New Replies:
Check out: http://www.status.co.uk/files/Products/121.pdf - This has an 'adder' circuit using...
Topic: Engineering and workplace issues.
from the Electrical department...
ABB Diode Supply Unit
Posted by Notle on 25 August, 2014 - 3:32 am
Ground fault on diode supply unit
Topic: Engineering and workplace issues.
from the automation department...
Difference Between Full Load and Rated Conditions
Originally posted by winds_977 on 21 August, 2014 - 11:59 am
Confused between the terms full load and rated conditions.
New Replies:
The same still applies. Rated is what the motor can sustain continuously. The way I interpret full...
I am sorry for not specifying my question. I am asking regarding the rated and full load condition...
For a pump driven by an electric motor, the rated voltage of the motor is the nominal value of the...
Topic: Power generation equipment control.
from the Operation department...
Oil injector in Turbine Oil System
Originally posted by Mani Singh on 22 August, 2014 - 6:53 am
Function of Oil Injector in Turbine Oil System
New Replies:
The shaft driven oil pump requires a positive suction pressure (i.e. it cannot suck oil from the...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Westinghouse WDPF System
Originally posted by snitz50 on 31 March, 2009 - 11:42 am
What kind of processor is the Westinghouse WDPF and what is its intended use?
New Replies:
Did you get any information about WDPF systems migration? > I am writing my bachelor thesis...
Topic: Engineering and workplace issues.
from the Instrumentation and Control department...
Self Actuated Pressure Control Valve
Originally posted by Anil Bathra on 21 August, 2014 - 8:58 am
What happens when Upstream pressure of Self actuated pressure control valve (downstream) is less than set Pressure?
New Replies:
If the valve is meant for controlling pressure upstream of the valve (pressure sustaining/...
Topic: Sensor technologies.
from the Need to find a sensor department...
Lightning Sensor
Originally posted by Andrew on 19 August, 2014 - 7:18 pm
I'm trying to find a lightning sensor
New Replies:
This is an interesting message thread and somewhat related to one 14-year client that makes (and...
By Lynn August Linse on 21 August, 2014 - 9:39 am -
Actually, the vaisala dot com website was pretty interesting. Although it would be tough to...
dopler radar is the answer....
http://www.vaisala.com/en/products/thunderstormandlightningdetectionsy stems/Pages/TLS200.aspx ...
Posted by Eric on 20 August, 2014 - 5:34 pm
Selection process for gearboxes & chain for conveyors & packaging machines
Topic: Continuous process industries, DCS questions.
from the Heads, flows, pumps & motors combined department...
Pipe sizing for fluids and pump/motor selection
Posted by Eric on 20 August, 2014 - 5:14 pm
How do you select pipe size, metal as well as corresponding pump type with motors for process industry?
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