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Control.com topic...
Sensors
Topic: Sensor technologies.
from the Instrumentation Engineers department...
Wet Leg Carried Over Problem in Differential Pressure Transmitters
Originally posted by Shaiq Bashir on 31 August, 2014 - 2:47 am
The seal which is filled in wetleg of DPT, is carried away with pipe fluid.
New Replies:
Why did you use the buffer solutions? The SS impulse lines are very resistive to ammonia corrosion...
Routine refilling of all such wet legs is commonly practiced in such cases....
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:
What are the usual contract of employment conditions? In the USA any idea, innovation or...
Thank you again. I think what I have to do is to make sure that my idea works perfectly. Then I...
> 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...
I'd be interested in learning more about your new flow measurement solution. Please email at...
Originally posted by Ashiq on 29 May, 2014 - 5:38 am
re-configure Solatron 7951 flow computer.
New Replies:
Hi, I think the contact details I gave are probably going to get you to them but just in case: ...
Dear Mr. JMW Thanks for your information yes i am trying to configure via the front panel...
> corrected volumetric flow calculation from indicated volumetric flow in solatrom flow computer...
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: Sensor technologies.
from the Forum department...
Running Analog Signal
Originally posted by jmgusmer on 26 August, 2014 - 6:34 pm
I need help with running analog signal alongside some 110 lines
New Replies:
Basically, anybody can do anything they like, and the deity knows how often Išve seen what youšre...
For 15 feet the first idea would probably _work_ fine with proper cable. A shield within a shield...
It is not considered a good practice to run low voltage signal wires in the same conduit as high...
Topic: Sensor technologies.
from the South Facing Wall department...
0 - 10v Sensor Output Spikes or Dips Periodically
Originally posted by Snake on 23 August, 2014 - 12:36 pm
0-10v sensor output not as stable as I'd like
New Replies:
You have nearly solved your own problem. I would indeed check the power supply with a scope as a...
Topic: Continuous process industries, DCS questions.
from the Eurotherm 3504 department...
Controller Watch Dog and Output Loop Failure Detection
Posted by Mike divine on 22 August, 2014 - 5:32 am
Challenges with achieving the processor watchdog and output loop failure functionality with Eurotherm 3504.
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....
By Lynn August Linse on 20 August, 2014 - 10:58 am -
I think this also depends on your goal. I'd assume the normal 'lightning' system is some form of...
http://www.vaisala.com/en/products/thunderstormandlightningdetectionsy stems/Pages/TLS200.aspx ...
Detecting lightning within a defined radius might be a problem. Not detecting the lightning, that's...
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?
Topic: Continuous process industries, DCS questions.
from the Instrumentation and Control department...
Understanding Run Back in Burner Management System
Posted by fluidflow on 16 August, 2014 - 11:13 am
What is Run Back in a Boiler Operation?
Topic: Engineering and workplace issues.
from the Forum department...
Ruston TA1750
Posted by Control Engineer on 13 August, 2014 - 8:23 am
Information request for Ruston TA1750
Topic: PLCs and related questions.
from the Automation department...
Calculating Input Current
Posted by Srbrg on 11 August, 2014 - 1:37 pm
Calculating the input current to PLCs for Armorblock - 1732E-IB16M12SOEDR
Topic: Sensor technologies.
from the Voltage drop department...
Honeywell XNX voltage drop
Originally posted by Saurabh on 7 August, 2014 - 7:52 am
Honeywell XNX shows voltage drop after connecting the TX
New Replies:
Your power supply and wiring are not providing the minimum voltage to the XNX (a gas detector). ...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
RTD Thermowell Response Time
Originally posted by MSalem on 4 April, 2010 - 7:30 pm
Thermowell RTD response time calculation
New Replies:
Special calibration equipment is typically used for did testing. For 0-100Deg C, temperature...
Hello, I'm preparing a thermal response test setup. In which different temperature sensors i.e...
Topic: Power generation equipment control.
from the instrumentation department...
generator hydrogen cooling system
Originally posted by None on 25 February, 2010 - 6:32 am
hydrogen cooling system for GE frame6 generator manual
New Replies:
Hello, Ruiyu Chen, We don't know what kind of turbine-generator you are talking about. My answer...
Hello, I am ruiyu chen. After reading your post, I think you are the one who can help me to get...
Topic: Sensor technologies.
from the Forum department...
Re-calibrating Rosemount Transmitters
Originally posted by shep on 25 July, 2014 - 8:52 pm
Re-calibrating Rosemount Transmitters after power is removed?
New Replies:
No only if you do a complete reset on it. The reset will take it back to the factory defaults but a...
Topic: Power generation equipment control.
from the Thermocouple department...
MARK VIe Thermocouples
Originally posted by Yassar on 27 July, 2014 - 1:53 pm
Questions about thermocouples and MARK VIe
New Replies:
Yassar, One of the better manuals produced by GE, the Mark VIe System Guide, GEH-6721, has some...
Topic: Sensor technologies.
from the Control Systems department...
1oo2 voting for temperature transmitter
Originally posted by christine on 23 July, 2014 - 4:30 am
1oo2 voting for temperature transmitter
New Replies:
http://www.controleng.com/single-article/monitoring-critical-vessel-te mperature/224a1b309e.html ...
you might consider placement in valve-free connecting pipe, but that depends on a number of...
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