Instrument Engineering – Transmitter calculation

Transmitter calculation

1.Converting Linerar % to square root %

Square root % = sqrt(linear %)(10)

Example: Convert 50 % linear to square root

Square root mA           =          √A*10

 

=          √50*10

 

=          70.71%

2.Converting Linear mA to square root mA

                Square root mA                 =    √((A-4)/16 )x16)+4

                Where A is Linear mA

Example : Convert 12 mA linear to square root mA

 

Square root mA                        =          √((A-4)/16 )x16)+4

 

=           √((12-4)/16 )x16)+4

 

=           15.31mA

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