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what is controlling card in dcs? how u measure dcs memory?what is bus in dcs?how u know dcs speed n ehternet speed?
2034how u calibrate sox nox co2 co in cemps?what is opacity n HPm?tell the standard parameters of cems?
3663I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?
2199Why DP transmitters are subjected to high static pressure test of 100 bar. Though they will be used for very small pressure range
HPCL,
4 9866How to measure density of oil in your kitchen. i.e indirectly to verify the quality of oil using min. gadgets available in the kitchen/house.
HPCL,
1 4346Post New Instrumentation Questions
why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?
What is difference between ESD and PLC please Explain me clearly.
use of split range ? where it is used ? in which control loop it is used ?
Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.
Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
Reason for capillary type dp level transmitter fluctuation
i am having information technology branh ....... can i prepare for psu exam
When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.
We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.
Good evening all I need a small favour regarding reliance paper i wanna probable sample papers(e&i) of reliance. if any of u have any idea about dis then plz mail me back.i belongs to electronics and instrumentation engg.so i need e&i papers. thanking u....
How to Calibrate Flow Switch in field
How to calibrate the flow transmitter
Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls
hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....
Calibration procedure for electro magnetic flow meter
