from the Why is my cable's shield 'Hot'? department...The shield shocked me!!!
Why is my cable's shield 'Hot'?
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 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 Forum department...Control Valve Positioner
Inlet air pressure of smart positioner is varying
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...
from the Electrical department...Motor sizing
three phase motor sizing for pumps/compressors
from the Barriers department...Active and Passive Barriers
Difference between active and passive intrinsic safety barriers
By Josh Albert on 5 June, 2014 - 4:33 pm -
> Can anyone give the difference differences between active and passive > barriers. Why and...
from the Transformer Design department...Transformer Secondary Voltage Ratings
Questions about transformer secondary voltage ratings
Amrit... i) If load varies +)/(-) 10%, then RMS-load calcultaion, involving duration of...
from the me department...Why use SRV?
There is a SRV where we generally found a very little difference between inlet & outlet of this valve.
DAMENE AMAR, Long time no hear from you; welcome back. Basically, to accomplish what you want...
By DAMENE AMAR on 2 June, 2014 - 4:27 pm -
Hi all, I agree CSA about the use of SRV. My question is simple. What is the difference...
from the Maintenance department...Backpressure Steam Turbine rotor axial displacement towards inactive side
Steam turbine rotor (back-pressure steam turbine) - rotor axial movement towards inactive side. Why?
By jojo on 2 June, 2014 - 6:17 am -
Hi Amin, some questions, further to JFB's questions: 1. has the steam turbine been living...
By JFB on 30 May, 2014 - 9:05 am -
was the coating of "oil lacquering on the inactive thrust pad's face? did you measure any...
from the Engineering department...Three way valve - on/off
Three way valve - on/off control design
Dear Sir, Thank you for your advice. I have contacted valve manufacturer. As you explained...
Josh, There are many types of three-way valves with double-acting actuators for many different...
from the I&C department...Multiple Mode VFD Selection
How do setup so that drive can operate in different modes.
By Sagar on 1 June, 2014 - 8:50 am -
Hello, This may be the stupid answer. What about using one aux. contactor with 2NO + 2Nc and...
from the Forum department...Instrument Tech Training Topics
My boss has asked me to create a training program from the instrument techs that is one 3 hour course a month for 2 years.
Providing a list of suggested topics to your intended audience is a great technique to spur a...
from the Electrical department...VFD SPEED OF 60HP DRIVE
I am using AMTECH make VFD of 60HP for blower application.
By Steve Myres on 30 May, 2014 - 12:14 pm -
Not sure there is a problem. Why do you care what the VFD does in situations it will never be used...
from the Forum department...Pneumatic tubing colors
pneumatic control circuit tubing color code standards
from the Forum department...ModbusTCP Test Software
Looking for ModbusTCP Master Test simulation software that will work on Windows 7 and Windows 2008 Server.
You can use Modbus Master software you can find at www.automationcorner.com. It is Visual Basic...
from the Old stuff department...Toshiba Automation Co PRS equipment
Looking for any information on Toshiba PRS system
from the Instrumentation department...Yokogawa CS1000 Report problem
report tag communication error
from the Trippy Department department...CMS (GE) Anti-Surge Controller
Anti-Surge Controller acting weirdly.
It opens the valve up to 3% and then as we close the rack room, increase its cooling the controller...
By NF on 28 May, 2014 - 11:23 am -
Dear Tajammal, CMS has a tendency to induce error in cards when heated. How much is the error?...
from the Electrical Engineer department...VFD Speed
Over speeding a motor by reference signal even if the frequency limit has been set in the VFD module
By Steve Myres on 26 May, 2014 - 12:41 pm -
Shouldn't be. Every ABB drive I'm familiar with respects the limits regardless of any other...
from the Forum department...Controlling flow and pressure to a spray ball
How to control flowrate and pressure with a positive displacement pump.
A positive displacement pump is essentially a constant-flow device, with discharge pressure...
from the Forum department...Is Barrier Requirements
IS Barrier Requirements for PLC
By Bob Peterson on 28 May, 2014 - 5:42 pm -
The answer is that you have not provided an adequate amount of information to answer the question. ...
from the Forum department...Honeywell DCS Server and Stations timing Synchronization Issue
Honeywell DCS Server and Stations timing Synchronization Issue
By Iris on 27 May, 2014 - 8:27 pm -
Experion LX Supplementary Installation Tasks Guide Setting up time synchronization .... pages 9-17...
from the automation department...Leary M06 Microwave Sensor
Looking for information on the M06 Microwave Sensor from Leary
from the Private department...Buffer Air Quality
Buffer air for sealing in dyno or centrifugal compressors.
By Jhon on 26 May, 2014 - 9:35 am -
Hello Friends; I am still waiting for the guideline. Thanks >We used a buffer air for...
from the Forum department...Running induction motors beyond the rated speed using VSD
Induction motor running beyond rated speed
By Sagar on 26 May, 2014 - 5:39 am -
I don't think speed will go beyond rated speed if we have already fix the limit in the VFD....
from the anti surge control department...Anti surge valve and enabling solenoids
Why is the anti surge valve associated with two enabling solenoids?
You can tell how far we have to go, when FORTRAN is the language of
-- Steven Feiner