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Engineering
Originally posted by Justin on 3 May, 2012 - 2:38 am
How to use a sigmatel USB IrDa dongle to communicate a Drager Xam 2000 with its CC Vision software for calibration
New Replies:
Hi. I have the same problem with a sigmatel usb-irda dongle and windows XP. Do you get to solve...
Topic: Power generation equipment control.
from the Maintenance department...
Fluid Variable Speed Drive Hunting
Originally posted by Mohammad Kashif on 13 September, 2014 - 5:03 am
Hunting problem in scoop of Voith Geared Variable Speed Coupling R 18 K 500 M
New Replies:
> if it is pneumatically actuated, you might check for water build up in the instrument air...
if it is pneumatically actuated, you might check for water build up in the instrument air line....
Topic: Engineering and workplace issues.
from the Calibration department...
Rosemount 3051 Calibration
Originally posted by josh0206 on 22 June, 2014 - 3:39 pm
Rosemount 3051 Calibration
New Replies:
Yes. 12-117 in wc....
So if I go through the zero suppression that would be like me rearranging it from 0-105" H20...
Topic: Communications systems and equipment.
from the Forum department...
TDC 3000 Remote Station Hanging
Posted by Jiftim on 12 September, 2014 - 2:15 pm
Remote Honeywell ES-T hangs with the RPS kit. Is it possible to extend the LCN using fiber without using obsolete Honeywell equipment?
Topic: Power generation equipment control.
from the maintenance department...
Different Parameters on Siemens 7SJ6005 Relays
Posted by paru on 12 September, 2014 - 12:34 pm
Why are some of the parameters in new Siemens 7SJ6005 relay missing or different from relay model with the same part number?
Topic: Engineering and workplace issues.
from the Forum department...
DCS analog input problem
Originally posted by mahmoud fawzy on 4 September, 2014 - 7:10 pm
DCS Analog input signals didn't work with ADAM card
New Replies:
Hi, David >Given the nature of what you've reported thus far, I can't predict > what will...
Given the nature of what you've reported thus far, I can't predict what will happen if you connect...
Hi David , yes, sure yokogawa card model is AAI143-H Analog Input Module (4 to 20 mA,...
The symptoms you're seeing are a classic example of exceeding the common mode limitation of the...
Thank you for reply, our power supply model is MOXA DR-4524 feeds 24 VdC to ADAM card , ...
Classic ground loop symptoms When you connect a battery powered simulator, it's floating with...
Topic: Sensor technologies.
from the instrument department...
Gas Chromo readings
Originally posted by duks on 10 September, 2014 - 3:17 pm
Retention time of gas chromo
New Replies:
the flow volumes in a gc are rather small, so any excess volumes in tubing and valves can result in...
Topic: Continuous process industries, DCS questions.
from the PID Control department...
PID Control In an Elevator
Posted by Blackbird307 on 10 September, 2014 - 12:53 am
How can a PID or PI be used in an application involving elevators with a pulley?
Topic: Continuous process industries, DCS questions.
from the Instrumentation and Control department...
Temperature Transmitter
Originally posted by Kamaraj on 8 September, 2014 - 7:11 am
How can we test a Temperature Transmitter Accuracy?
New Replies:
I presume the first simulation is Prova 123 K T/C output to temp transmitter. It isn't clear...
every tried a dry block calibrator on the tc...
so the Prova 123 has 0.1% of span, the transmitter you are testing 0.3% of span, so you can expect...
Topic: Engineering and workplace issues.
from the Automation List department...
Why 4-20 ma is used in Analog Signals?
Originally posted by sreeraj on 3 June, 2007 - 12:25 pm
Why 4-20 ma is used in Analog Signals?
New Replies:
When I began in the power industry several years back there were two commonly utilized current...
>> Why 4-20 ma is used in Analog Signals? >> How come ISA selected this. Why not...
Topic: Power generation equipment control.
from the Automation List department...
What makes a generator increase load
Originally posted by kumarash on 10 August, 2008 - 3:49 pm
What makes a generator coupled to a gas turbine increase load when load raise command is issued to Mark V
New Replies:
Marcos Gonzales, Few answers... 1. Reverse power isn't bad for the generator--it's bad for...
Hi Few questions... 1.- Why reverse power affects reciprocating engines but not so much gas...
Topic: Communications systems and equipment.
from the Specification department...
Redundancy of Byte Count and Quantity
Originally posted by Jay on 9 September, 2014 - 4:49 am
Is there a need for both fields "Byte Count" _and_ "Quantity"?
New Replies:
Hello, There are several possibilities. Quantity would normally be the count of data fields...
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:
Hi fluid flow Can you please email me some stuff (presentations/pdfs) regarding cooling and...
Hello fluid flow Yes the turbine clearance may have increased. The turbine is operation with 1-2...
Topic: Engineering and workplace issues.
from the Forum department...
GFD Chokes?
Posted by Dinesh on 8 September, 2014 - 1:16 am
What does GFD Chokes mean? Is it related to gas flow calculations?
Topic: Power generation equipment control.
from the instrumentation and control system department...
gas turbine tripped on "loss of flame"
Originally posted by power plant on 26 July, 2012 - 3:43 am
after a gas turbine started the temperature on turbine compartment and load gear compartment increasing until reach the high temperature alarm, and after that the turbine tripped on " loss of flame"
New Replies:
Is there any leakage from the compressor casing? (i.e. can u hear noise) Is the CPD lower than...
Posted by Ashwin on 7 September, 2014 - 2:36 am
How to calculate specifications for motor to run conveyor system?
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:
For anyone interested, there's some really useful information on this blog I found about Pressure...
Topic: Sensor technologies.
from the Instrumentation Design department...
Using a Standpipe with DP Level Transmitter
Originally posted by TANWEER on 3 September, 2014 - 8:57 pm
Can we use a standpipe with a DP type level transmitter?
New Replies:
Stilling wells are inside the tank or vessel, so getting an impulse line to connect at the bottom...
I am assuming your question is if you can use a DP transmitter on a standpipe. If that is the case...
Topic: Power generation equipment control.
from the Need Help department...
Need help with Swirl Chart for Siemens 501F
Posted by ncc on 4 September, 2014 - 8:00 am
We need references for determining the swirl for a 501F engine to match thermocouples to combustor basket.
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:
The application I am familiar with is where we have used these valves to control the fire ring main...
Topic: Sensor technologies.
from the Instrumentation and Control department...
Level Transmitter for Submersible Pump
Originally posted by Anil Bathra on 3 September, 2014 - 9:50 am
Which level transmitter will be the best choice for measuring the level of a well of 400 m depth?
New Replies:
Something I have done before was to make use of a submersible sensor and connect a 4mm steel cable...
Any one that goes deep enough. The question is, how deep? GE Druck's PTX 1730 says it does up...
Topic: Engineering and workplace issues.
from the Help needed department...
Sliding Mode Control
Originally posted by Andrew on 31 August, 2014 - 12:41 am
Help with Anti-swing Sliding Mode Controller for Gantry Crane
New Replies:
> I'm an Electrical Engineering student undertaking an Advanced Control subject. > I need to...
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:
Thanks for the reply. The reason we are using buffer solution is because we are measuring flow of...
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...
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