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My SVO3 in TMR MKV GT has a constant feedback difference of 4-5% from a reference signal. Its a liquid fuel splitter valve in Dual fuel F9 GE Turbine.
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When did you first notice this differential?
Why is it perceived to be a problem? What other...
simulation of HART communication
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I don't think that you will find a device that can simulate a HART slave.
A converter such as...
> Why do you need to use HART when you don't even have HART transmitters?
In my laboratory I...
Interesting what's buried in a manual.
I wonder whether the 475's 'simulate' mode includes...
On the page 56 of the document "475 Field Communicator, User's Manual"...
The 475 is a handheld communicator that acts as a HART master.
I am unaware of any 475 function...
How can we measure Interface level measurement?
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By Walt Boyes on 28 February, 2012 - 8:58 am -
Define "work"! If you mean, will it read something, sure. If you mean, will it accurately...
By Soovo Sen on 27 February, 2012 - 11:52 pm -
Will GWR work in a continuously density changing environment where there is no clear interface?...
could anybody recommend brands for differential pressure transmitter with recorder
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By hans on 27 February, 2012 - 11:59 pm -
Could you recommend some low cost products?
Thanks in advance....
The era when a transmitter integrated into a recorder has been gone for 30 years. Nowadays there...
how does plc operate on analog inputs? can they perform check of whether the analog input is in the specified range or not? are there such provisions, i.e., of checking, specifying ranges etc?
A question - can I connect a loop powered analogue output (2 wire system) to a passive instrument (positioner)that has a seperate 24vDC supply?
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By Rob on 26 February, 2012 - 12:56 pm -
There is no TX in the original question - just a PLC output and a Positioner (which is confusingly...
so we take up a 24V source (forget PLC), the TX and the positioner, and make a loop. we take up...
By Roy Matson on 25 February, 2012 - 7:40 am -
Mr Smith left a very confusing question,
I'm not sure what he meant by the term...
By Rob on 24 February, 2012 - 10:46 am -
No, a signal isolator is not a fuse. A signal isolator electrically separates the two sides of an...
sorry, i mistook 24V of the postioner for the 24V of the TX,
kinly ignore my previous post...
hi,
i am a little unsure, how to electrically isolate the positioner from the 24V.
if the...
By Roy Matson on 23 February, 2012 - 8:33 am -
If the positioners input is electrically isolated from it's 24 Volt supply, yes you can. Without...
Flow Meter data mentioned in data sheets issued for Venturi Meter, Orifice, Wedge flow meter differs
We have a need to check the thickness of a fiber board.
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By Steve Myres on 22 February, 2012 - 9:42 am -
No problem, Ken!
Another trick, if you were measuring sheets whose nominal thickness varied by...
By Ken E on 22 February, 2012 - 8:49 am -
Steve,
I'm with you now. I think I had the case of scanning your message too quickly. Sorry...
By Steve Myres on 21 February, 2012 - 1:47 pm -
> Yes, I agree If the material and spring force of measurement wheel is stiff
> enough to...
By Ken E on 21 February, 2012 - 12:40 pm -
Yes, I agree If the material and spring force of measurement wheel is stiff enough to force the...
By Steve Myres on 21 February, 2012 - 10:47 am -
Ken,
I was thinking you could do it with one sensor if instead of measuring between each surface...
By Rob on 21 February, 2012 - 10:20 am -
There is a lot of experience in the pulp & paper industry with measuring sheet thickness. I'm...
By Ken E on 21 February, 2012 - 9:25 am -
I'd go with two LVDTs attached to a linear guide with rollers on them, a wheel wiper to keep dust...
By Steve Myres on 20 February, 2012 - 9:49 am -
There are also more precise probes that can measure that kind of variation directly, but they can...
By Steve Myres on 20 February, 2012 - 9:44 am -
So how about a mechanism that releases spring loaded probes simultaneously against the upper and...
> Is the board moving when you want to measure it, or stationary?
STATIONARY.
> Can you...
By Steve Myres on 19 February, 2012 - 4:21 pm -
Is the board moving when you want to measure it, or stationary?
Can you touch the board, either...
Facing an abnormal situation with Magnetic inputs on Drager Polytron FX LEL detectors
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By Sandra Eggers - Dräger on 21 February, 2012 - 3:15 pm -
The Draeger Polytron FX uses reed switches to access and navigate through the menu.
Tapping a...
MOS application in SIL 3 system for plant using triconex ESD system
New issue of IFSA Newsletter - February 2012
modbus pulse counter - estimate the cumulative water/gas used so far.
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For someone just starting out with Modbus, I'd suggest the pulse counter. Current loop is loads of...
> I have to measure water and gas consumption using some of the several
> flow sensors...
Over weight Under weight problem in weighing system during startup.
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when u use chronos m/c first of all pl. use hopper in which your material with full automation like...
What is the industry standard on short circuit protection or low voltage protection?
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Thank you for your comments.
All of these sensors will be powered by 24vdc and draw low amps....
I'm looking for a product recommendation
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By Lowcostsystem on 15 February, 2012 - 3:44 am -
There are blogs showing how to develop low cost temperature monitoring and data logging using...
Flare Gas measurement ultrasonic / optical meters
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By Suvo on 13 February, 2012 - 8:59 pm -
I have used DigitalFlow GF868 from GE panametrics.They are excellent choice for this application.
...
By Raymond on 12 February, 2012 - 5:22 am -
I have been researching about Fluenta, and guess what its nothing more than an ultrasonic meter.
...
Please Recommend A Multimeter
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By Roy Matson on 12 February, 2012 - 11:20 pm -
Don't forget Fluke, they make fine products....
They are not called 'multimeters' (DVM or VOM that an electrician uses), because they source...
Relocation of inaccessible liquid service flow transmitters to ground level.
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Sounds good to me, unless the transmitter uses Foundation Fieldbus or Profibus, neither of which...
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