Answer / venky

Comparing test instruments with standard instruments.

Answer / chandrakant sahu

Calibration is most important & heart of any process instrument. There are many definition for calibration i am also trying to describe it a calibration is a process where a known value is applied to the instrument which is under calibration from the master instrument at various step in suitable temp and environment. Repeat & reproductive of process and note down the output.If Output come as same the input of master instrument instrument is ok otherwise set the zero & span and repeat the process

Answer / santhoshnarayanan

Calibration; To check and correct the instrument with standeread test instruments.

Answer / hiren

Calibration procedure is verification of responds of instrument device against the non standandard instrument.

Answer / ahmed

Calibration with several meanings
Which bargains
And Budget
But in filling devices come on the first test of the device and make sure it works in good through Thath in an environment special process
In this case, we adjust all the data it through the Hart and make sure the capsule works by pump pressure and make sure electronic unit through the power unit
All of these tests are done on the basis of Data cheet

Answer / raja

Simply span and zero adjustments

How to connect field devices to PLC and DCS using a FIELD BUS, DP,MOD BUS(please tell me any extra interfce or adopters need in this case if we use remote i/o s)

3 Answers  

how to calculate flow range in DP tx

1 Answers   Karnataka Power,

Is there any relation between Artificial Intelligence and Instrumentation?

0 Answers  

i want know about capillary type LT transmitter installation. we can install any location in between to HP and LP leg?

2 Answers  

what is the difference about HART, and 4-20mA signal?

8 Answers  

what is the Difference Between Domain and Station?

3 Answers   Emerson,

how to calculate signal cable sizing? and multipair cable sizing??explain in brief?

0 Answers  

what effects a surging can produce in the compressor

0 Answers   Nemat,

How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.

0 Answers   Heisco,

Why do we go for 4-20mA? why not other standara?

6 Answers  

What are use of positioner.

6 Answers  

generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

2 Answers