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5 Advanced Operations
E5@C Digital Temperature Controllers User’s Manual (H174)
5-16 Using the Extraction of Square Root Parameter
5
5-16-1 Extraction of Square Roots
5-16 Using the Extraction of Square Root
Parameter
5-16-1 Extraction of Square Roots
Extraction of Square Root
Enable
Extraction of Square Root
Low-cut Point
• For analog inputs, the Extraction of Square Root parameter is provided for
inputs so that differential pressure-type flow meter signals can be directly
input.
• The default setting for the Extraction of Square Root parameter is OFF. The
Extraction of Square Root Enable parameter must be set to ON in order to use
this function.
• If the PV input (i.e., the input before extracting the square root) is higher than
0.0% and lower than the low cut point set in the Extraction of Square Root
Low-Cut Point parameter, the results of extracting the square root will be 0.0%.
If the PV input is lower than 0.0% or higher than 100.0%, extraction of the
square root will not be executed, so the result will be equal to the PV input.
The low-cut point is set as normalized data for each input, with 0.0 as the
lower limit and 100.0 as the upper limit for the input setting range.
Parameter name Setting range Unit Default Level
Extraction of Square
Root Enable
OFF: Disabled,
ON: Enabled
--- OFF Initial Setting Level
Extraction of Square
Root Low-cut Point
0.0 to 100.0 % 0.0 Adjustment Level
This procedure sets the Extraction of Square Root Low-cut Point param-
eter to 10.0%.
The input type must be set for an analog input.
Operating Procedure
• Enabling Extraction of Square Roots
1
Press the M Key several times in the Initial Setting Level to
display sqr (Extraction of Square Root Enable).
Initial Setting Level
2
Press the U or D Key to select on (Enabled).
The default is off (disabled).
100% FS
0
Argument 1 (Input Data)
Extraction of
square root
100% FS
Extraction of square
root low-cut point
off
sqr
Extraction of
Square
Root Enable
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