from the Forum department...Measuring Flow with Annubar
Should pipeline be full of water for measuring flow with annubar?
By d- on 11 May, 2014 - 5:10 pm -
it will be a meaningless measurement, so you might as well remove it or disconnect the...
from the Forum department...White thick smoke from gt during start up and shutdown
white thick smoke coming from exhaust during start-up and shutdown.
I had almost the same issue but it was duel fuel and it was happen only when operating on liquid...
from the Boiler Safety department...Can I Use The Same Instrument for Boiler Protection and Boiler Control?
Is it a violation to use the same instrument for boiler protection and boiler control (e.g. drum level)?
from the Forum department...Economizer Function in a Boiler
Function of Economizer in a Boiler
By seaferous on 8 May, 2014 - 11:44 pm -
> What is the function of the Economizer in a Boiler? the economizer is a steam generation...
from the Forum department...pulse scale factor
pulse scale factor
By Bob Peterson on 8 May, 2014 - 5:25 pm -
Generally you want the most pulses you can get. Sometimes this is limited by how fast the flow...
from the Forum department...Floating point in little endian can be read in big endian but value not same.
Reading IEEE little endian format data
By Helmut Ritter on 8 May, 2014 - 12:01 pm -
Modbus only defines values up to 16 bit (size of a register or holding register). As soon as you...
Are here any values in the system that are in a known range? I'm thinking something like base...
By RussB on 6 May, 2014 - 9:39 am -
This is not unique to big/little endian. They are called "Floating Point" because the...
from the Forum department...Honeywell Experion DCS Redundant Analog Output Card Failure...
Honeywell Experion DCS Analog Output Card Failed. Output went to initialization states. Points analog output blocks gone inactive. Action changed for some valves in configuration.
By T.M.Vekaria on 6 May, 2014 - 3:01 am -
Similar problem we had faced in Honeywell EPKS 300 system and also recently upgraded to EPKS 400. ...
from the Deciding on the right transmitter department...Mark V Scan rates
How can the scan rate on the SCADA and the Response time of the transmitter be knitted together?
William Monson, SMART transmitters are NOT recommended for: 1) P2 pressure sensing 2) CPD...
from the Communication department...how to detect over pressure
Sensor for detecting if pressure is out of 4 to 6 bar inside a pneumatic pipe
By tapas on 3 May, 2014 - 4:51 am -
Thank you for your reply....
By Jim Delaney on 2 May, 2014 - 4:15 pm -
Google "industrial pressure switch". You'll need a switch assembly (sensor and...
from the Forum department...Reading Data from a Scale with Quantum Unity Pro and 140 ESI 062 010 Card
Reading ASCII Data from Weigh Bin Scale with Quantum Unity Pro and 140 ESI 062 010 Card
from the Forum department...Formula for Chemical Dosing
formula to use for Calcium Nitrate concentration?
from the Forum department...Wireless Sensor Networks for Industrial Applications Workshop (WSNIA'14) Call for Papers, Due on May 30th, 2014
Call for Papers/Posters: 2014 International Workshop on Wireless Sensor Networks for Industrial Applications (WSNIA-2014), August 17-20, 2014, Niagara Falls, Ontario, Canada.
from the Forum department...Comparing steam flow and feedwater flow
Looking to find out how a comparison of feedwater flow and steam flow is made.
It was a lot easier during the 'G'olden years when all we had to do was add a capacitor to the...
By d- on 29 April, 2014 - 9:42 am -
research project? Gee, this sort of change has been routine for the last thirty years, where...
You're not going to be able to maintain a perfect mass balance - for 2 reasons. First, the feed...
By MattQ on 28 April, 2014 - 6:06 pm -
What I'm doing is a research project that entails changing a single-element to three-element...
By otised on 27 April, 2014 - 10:26 pm -
As long as you compare mass flows they can be compared. So you have to compensate the steam flow...
I don't know why you feel that the flow rates cannot be compared directly as they have different...
from the HMI Upgrade department...ABB / Bailey Conductor NT
Upgrading from Conductor NT 6.0 to Symphony Plus?
By John on 29 April, 2014 - 6:00 am -
I'm hearing that they have a SODG graphic conversion tool that is VERY clean. I think that the tool...
from the Forum department...Does IEC61511 allow an ESD system on a control network?
Does IEC61511 allow an ESD system to be resident on a control network?
from the opc communication department...OPC tags stop updating...start once the tags are added again
Using an OPC client, the values stopped updating after a while (20 days).
By lalas on 26 April, 2014 - 11:01 am -
I tried doing it (which is disable and enable the group) when it happened again but did not work. I...
from the INSTRUMENTATION department...UREA FLOW METER
What type of flowmeter can be installed in a Urea duct as a source of FD and ID fan in the duct?
> What are you measuring? Just air flow? Thank you for your response. Sir, as it is a large...
By Billy on 15 April, 2014 - 10:30 pm -
What are you measuring? Just air flow? We use a DP transmitter for our prill tower air ducts....
from the gad trubine control system department...moog servo valve operation
How does a MOOG servo valve operate?
Jyshen, You are most welcome....
By Jyshen on 22 April, 2014 - 6:00 am -
Dear CSA, Thanks for your superb informative response. Your passion and sincerity to share your...
from the Department department...Do I Understand PID's?
Just want to see if I understand these things.
A PID controller output depends on the error between the process variable PV and a target value or...
from the inst department...Gulde control valves
Suppliers of GULDE control valves.
By Dipankar Biswas on 17 April, 2014 - 11:41 pm -
> Please let me know the suppliers of GULDE make control valves. We M/s Continental Valves...
from the instrumentation department...I/P positioner and I/p transducer Control valve
Difference between I/P positioner and I/p transducer
Look at the principle of operation and internal diagrams of a Bellofram Type 1000 I/P. It does not...
By oil&gas on 17 April, 2014 - 5:26 am -
hi sir, I had a question why diaphragm is not used in i/p converter? why they using the bellows?...
from the Forum department...Instrumentation cables sizing
Instrumentation cables sizing
By Franco Kew on 16 April, 2014 - 6:03 am -
Dear Ahmed Sami, Your question is incomplete I can say. Cable cross section and hazardous area...
Ahmed Sami, Choosing wire/cable for a particular application is a very involved process. Does...
Why do you sugget 1.5 mm2 cable? Does that follow any standards recommendation or calculations? ...
You Need at least 6x1.5mm (6 core cable)...
By rvsaradhi on 11 April, 2014 - 2:21 pm -
please note that for all your instrument devices you can use 3x1.5sqmm (3 core cable)....
from the Level Control department...Magnetorestrictive Level Transmitter issues
Extreme vibration and loss of signal on level transmitters
By Sam on 15 April, 2014 - 8:12 am -
Hi Mateus, there is only one instrument when you are working offshore on a FPSO or Platform...
from the Forum department...Actuator indication and control
How to obtain indication and control from a Rotork actuator
Other types of actuators use two drive signals: - one signal drives the actuator 'open' - the...
from the Forum department...Condensate pots and flow measurement
Using condensate pots for flow measurements
1. The purpose of condensate pots in steam flow measurement is to isolate or seal the transmitter...
No man is an island, but some of us are long peninsulas.