C3-14
IM 34M06H62-02E 2nd Edition : June 2008-00
C3.9 Square Root Extraction
The square root extraction function is especially useful for converting differential
pressures measured with a restriction flowmeter using an orifice or nozzle into flow rates.
You can also specify a low-cut point below which no square root extraction is done.
0
20
40
60
80
100
020406080100
Low-cut point selectable
between 0.0 and 5.0% of input range
Square root extraction does not apply to any
input below low-cut point where output = input.
Slope 1
Input
%
Output
%
Figure C3.5 Square Root Extraction Example
Table C3.13 Square Root Extraction Parameters
Data Position Number
Symbol Description
Unit Data Range
Default
Value
Attribute
Stored
Loop 1
Loop 2
Loop 3
Loop 4
179 379 579 779 SR
Square root
extraction
None
0: OFF (no square root extraction)
1: ON (square root extraction)
0 RW
180 380 580 780 LC Low-cut
Industrial
unit
0 to (0.0-5.0%) of (SH - SL)
1.0% x
(SH - SL)
RW
This function is available only in the DC voltage input mode. It is ignored if specified in
thermocouple or RTD input mode.
CAUTION
To Next Page
Loading...
Need help?
General
