YOKOGAWA FA-M3 VITESSE F3CX04-0N, User Manual

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C2-15
IM 34M06H63-01E 1st Edition : July, 2003-00
C2.9 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.
100.0%
0.0%
100.0%
Low-cut point (0.0-5.0%)
Input
Slope 1
Figure C2.5 Square Root Extraction Example
Table C2.13 Square Root Extraction Parameters
Data Position Number
Symbol Description Unit Data Range Default
Value
Attribute Stored
CH1 CH2 CH3 CH4
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
0.0-5.0% of (SH - SL) 1.0% of
(SH - SL)
RW
