How to Configure a Combined Guided Wave Radar Transmitter
Posted by Amar DAMENE on 20 May, 2018 - 1:55 am
How to setup the LRV and URV for a combining guided wave Radar with Rosemount Chamber
we have ABB DCS control system and compAir air compressors monitor and control from DCS. how i can do that??
By Ikhtiander - on 13 May, 2018 - 7:41 pm
Hi Khalid, Please check if your Compair air compressor is using their own Delcos controller or...
Can Honeywell C200 controller address retrieve using any software ??
On line Tap Changer in Arc Furnace
Questions about On line Tap Changer in arc furnace and transformer
By Chris on 17 May, 2018 - 9:11 pm
The online tap changer is connected in the primary because the current is significantly lower on...
significance of forceback attribute in maxDNA.
By Supratim Pal on 17 May, 2018 - 2:30 am
ForceBack is going to help you if you want to force the PID to some value in Auto Mode, value may...
Differences between Yokagawa and Emerson DCS
Single Core Drop During Gas Valve Manual Movement
While attempting to manually move gas valves on a Mark V controlled 7EA Combustion Turbine a single core drops out registering a speed increased more than 5%. Problem happens intermittently, cause unknown.
on 9 May, 2018 - 5:51 pm
anon, >Years ago, I had a recommendation to short the UNUSED (LP) >Speed inputs during...
By anon on 9 May, 2018 - 3:02 pm
Years ago, I had a recommendation to short the UNUSED (LP) Speed inputs during autocal if this...
Difference Between Orifice Flow Meter and Ultrasonic Flow Meter
we have problem in gas consumption according to difference between orifice Flow Meter and Ultrasonic Flow Meter.
i need to know the advantages and disadvantages of set-point tracking.
Differential Pressure (Flow) Measurement
Flow (based on orifice + differential pressure) calculation in DCS/PLC software
By Arthur Mayclin on 4 May, 2018 - 8:58 am
If you have the orifice plate design data, and don't want to get wrapped up in the actual...
By PolyT on 2 May, 2018 - 3:46 pm
Thanks again Bill for the valuable info, I have checked the proposed sizing programs, especially...
By PolyT on 30 April, 2018 - 4:48 am
Thanks a lot Bill for your time! In the measurement, there is a factor of 6.6407833 multiplying...
Can someone elaborate 3-point step control on Auto and Manual mode in general?
Experion PKS Display Blackout/Inverted Video
After DCS conversion from Foxboro I/A to Honeywell Experion PKS R430, analog values will flash black for one refresh rate periodically.
By SD on 2 May, 2018 - 8:09 pm
It is unfortunate that the new system is getting loaded up and causing graphics to be delayed. I...
Direct or Reverse Controller
Posted by DIEGO HECTOR BARRIGA CARI on 29 April, 2018 - 6:32 pm
Reverse or direct controller example
By dondon saloma on 30 April, 2018 - 11:59 am
What was specifically being asked about is the action of the Temperature Controller, whether it...
By dondon saloma on 30 April, 2018 - 2:26 am
What you need is a reverse-acting controller. Such that when the temperature is rising (if for...
About software configurable DCS I/O
Comparative study of merits and demerits of a software configurable I/O module for DCS
MarkV Timers and Counters Inaccurate
Mark V timers and counters inaccurate counting after switching off and ON of <R>, <S> and <T>
Rule of thumb of determining setpoints
Determining the pressure switch set point on a process
By Ahmed Shafik on 25 April, 2018 - 12:39 pm
I suggest that you follow the following: 1- Check your line rating and consequently you will...
one of the three drum level transmitter behaves abnormally
By senthil on 25 April, 2018 - 4:31 am
For me its due to improper blow down. one leg of the transmitter was filled by dissolved solids;...
Heat Exchanger Not Working Properly
In heat exchanger the Control Valve in the steam inlet line keeps hunting now and then.What could be the reason?
Slurry Density Measurement
Are there reliable alternatives available to measuring slurry density except for the Gamma radiation method?
By Tim Lee on 14 April, 2018 - 11:08 am
I didn't read all the way through the blog, but the indications I got is a Coriolis meter would not...
Pneumatic Instrumentation Systems
Will the pneumatic instruments be obsolete in the near future?
By Bob Peterson on 13 April, 2018 - 11:43 am
I don't know that I would rip them out indiscriminately, but over time I would be replacing them...
By Rora on 13 April, 2018 - 1:48 am
Many pneumatic systems are being replaced by servo motors, but pneumatic is still necessary for...
Formula for Square root extraction for doing in PLC for flow measurement.
By valsadas on 14 April, 2018 - 5:28 am
Hello, This reply was very helpful.I have one more question. Is it possible to find out that how...
Best method for this scenario
By Ashton on 12 April, 2018 - 10:17 pm
Ethernet cards are no longer available for the 90-30 series PLC. I plan on using the existing...
Air-Cooling Unit Outlet Temperature Control
Distillation column has air-cooling unit outlet temperature control problem.
By Hans H. Eder on 12 April, 2018 - 6:50 am
Lowering the PID execution frequency is not going to help. The better approach: First try to get...
We have DP orifice 0~500 mbar. We also have P&T compensation and display value in MMSCFD
By Ikhtiander - on 11 April, 2018 - 12:00 pm
Hi Ayyappan, to calculate gas volume flow or mass flow based on differential pressure, you can...
Triconex DI-3503E Modules Channels Changing Frequently from TRUE to FALSE State
DI-3503E modules channels are changing frequently from TRUE state to FALSE state.
Need advice about using 4C or 2Pair cable for MOV instrument that has 2DI and 2DO command to the PCP panel.
Modbus for PID Loop Process Variable
Possible downsides of bringing process variable (flow rate) into a pid loop via Modbus rather than direct connection.