from the Forum department...Wiring of Interposing Relay
Wiring of Interposing Relay
By Ikhtiander on 23 June, 2014 - 11:10 am -
Hi Thira, did you mean how to wire relay to PLC digital output channel ? Following link should...
By Bob Peterson on 23 June, 2014 - 7:49 am -
This is a very common practice. If you have not run across it before, maybe you should just ask...
from the Instrument &Control department...Control Valve Positioner Action & Travel Scale
Control Valve FF positioner (Masoneilan FVP-110) Action (Direct/Reverse) and travel scale range.
By I Muchimwe on 23 June, 2014 - 5:53 am -
Please take note that there are 3 actions/parameters which determines the final valve travel...
from the Calibration department...Rosemount 3051 Calibration
Rosemount 3051 Calibration
from the Forum department...Paralleling with Utility - Voltage rise with load
2 MW generator paralleled with utility experiences voltage rise as load increases.
from the Operation department...How to increase font size at mark-VI E monitor
Font size is very small. How to increase it?
Brian, Could you tell us how you can access the zoom feature? Many sites don't have the CIMPLICITY...
By Brian on 19 June, 2014 - 3:30 pm -
You might already know this, but there is a zoom feature in Cimplicity. It will enlarge the entire...
Have you asked the installer? I believe the only method is to change display resolution, unless...
from the power generation department...utilization factor and capacity factor
Need the difference between capacity factor and utilization factor for gas turbine
By Ayed on 19 June, 2014 - 4:33 am -
i am still waiting. would you please support...
from the Forum department...PCV 5.3 lan-90
Where is the Location of PCV 5.3 lan-90 backup, both configs and data?
from the Forum department...ERCB Directive 17 Gas Flow Computers
ERCB Directive 17 Compliance of Gas Flow Computers
from the Pilot Plant department...I Can't find pumps suppliers
I need to find suppliers of little pumps and valves
from the dengs department...What kind of electrical CAD software is most used?
what kind of electrical CAD software is most used by you guys?
By NARESH on 18 June, 2014 - 7:54 am -
Hi, kindly suggest me weather i go for solidworks Electrical , thanks you kindly drop your...
from the EEE department...Voltage Sags in Power Transmission lines
Details about transmission lines
from the Eng department...Recalibrate RTD Temperature Transmitter
change calibrated range RTD temp transmitter
By Gagandeep Singh on 17 June, 2014 - 4:50 am -
First your Transmitter should support HART If that is so, then you just need to change your...
from the Automation department...HMI in Class 1 Div 2 area
Can I use an intrinsically safe barrier or isolator to power a 24VDC HMI, rated for Class 1 Div 2?
By Bob Peterson on 16 June, 2014 - 9:18 am -
Given that you stated this was a C1D1 area, the use of a gas monitor is very dubious as a way of...
from the Forum department...Control Valve Positioner
Inlet air pressure of smart positioner is varying
By Gagandeep Singh on 16 June, 2014 - 8:13 am -
Sir, Thanks for your reply...My issue is not this.. I think i am not able to explain the...
The Azbil SVP3000 'smart' positioner is a HART 4-20mA current pneumatic valve positioner. The...
By Gagandeep Singh on 12 June, 2014 - 10:43 am -
Sir, The regulator is giving a constant pressure. there is variation only in positioner inlet...
The inlet air is has a mechanical pressure regulator somewhere upstream. The changes in pressure...
from the Engineering department...Gas Detector installation in Double Wall of Storage Tank
Installing a Gas Detector in Double Wall of Storage Tank
from the project department...220kv/33kv SUBSTATION
about the connection of current transformer(CT).
> i inform you that we install the CT after the CB circuit breaker. thank you...
By p.d on 13 June, 2014 - 12:52 pm -
There will be always 2 pairs of CT & PT before and after Circuit Breaker; the purpose of CT...
from the Why is my cable's shield 'Hot'? department...The shield shocked me!!!
Why is my cable's shield 'Hot'?
By d on 13 June, 2014 - 11:05 am -
Agreed the grounds are ultimately connected as they must be for safety, at a single point. I...
By W.L. Mostia on 12 June, 2014 - 8:02 pm -
I can't say that I agree with below statement regarding grounding of instrument grounds. The...
By Fluoronator on 11 June, 2014 - 7:25 pm -
Thanks a lot! I'll start by checking for grounding on both ends and if that's not the problem I'll...
I agree with d; this isn't all that uncommon. I doubt that it's caused by the wires inside of the...
By d on 11 June, 2014 - 1:12 pm -
Just to follow up, instrumentation grounding is kept separate from the electrical power grounds for...
By d on 11 June, 2014 - 10:25 am -
welcome to the world of ground loops! They are especially common and trouble shooting is always...
from the process department...Gas flow through centrifugal compressor
Increasing gas flow throughput through compressor plant by adding more gas reserve.
from the Automation List department...MODBUS RTU device discovery and automatic address assignment
Is it possible to plug and play?
By vin on 12 June, 2014 - 2:50 am -
Modbus does not support auto discovery...
from the Forum department...Transformer Protection
Need source to learn about transformer protection
from the Forum department...IS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
IS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
from the Forum department...Pneumatic tubing colors
pneumatic control circuit tubing color code standards
the standard is customized, and stated on the pneumatic plan. for example: BLUE: AIR SUPPLY ...
from the IEC department...measurements in Siemens SICAM AK1703
measured values cyclic transmission IEC 104
from the Forum department...limit output controller signal to avoid saturation
How to limit the output signal of an unstable control to avoid actuator saturation.
from the instrumentation department...Loop calibration for 2 wire loops
Loop Calibration for 2 wire loops from calibrator that gives 24VDC loop output power
By Heinrich Baumann on 9 June, 2014 - 3:44 pm -
> How to do loop calibration of 2 wire loops. For loop calibration of 2 wire loops you need a...
from the Forum department...Power supply impedance
How do I find the impedance of a 220VAC power supply
from the HART multidrop department...HART multidrop reliability
If one HART device fails, will the subsequent HART devices unseen from the system?
from the Electrical Motor department...DOL starter Motor to convert Drive control motor
Need to change with a 37 KW DOL starter (3 Wire) winding to suitable soft starter or drive control to reduce starting load.
from the Forum department...VVVF drives - Internal speed calculation
How is speed of the motor calculated INTERNALLY by a VVVF drive?
By krishnan on 8 June, 2014 - 11:42 am -
As per my understanding for drives without encoders the drive calculates the actual speed based on...
from the Automation department...interview questions automation engineer
need interview questions and answers for automation engineer
By d on 8 June, 2014 - 11:26 am -
Well, if you are the interviewer, just bow down and let the engineer tell you what you need to...
I'll defend to the death your right to say that, but I never said I'd
listen to it!
-- Tom Galloway with apologies to Voltaire
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