![Yamatake DigitroniK DCP32 User Manual Download Page 138](http://html.mh-extra.com/html/yamatake/digitronik-dcp32/digitronik-dcp32_user-manual_905225138.webp)
7-38
Chapter 7. PARAMETER SETUP
■
Description of setup data
●
C07 (input 1 square root extraction dropout)
●
C27 (input 2 square root extraction dropout)
• Generally, the differential pressure detected by an orifice on a differential
pressure type flowmeter, is proportional to the square of the flowrate signal. For
this reason, square root extraction is carried out when uniform signals are
required.
When input for square root extraction is the dropout value set by
C07
or
C27
or
less, output from square root extraction processing can be set to 0%.
• When
C07
or
C27
is set to 0.0, square root extraction is not carried out.
• Square root extraction is carried out within the range 0 to 100% of input. In the
ranges -10.0 to 0.0% or 100.0 to 110.0% of input, normal scaling is carried out.
100%
Output after square
root extraction (Y)
Input (X)
100%
Dropout value
(variable in range 0.2 to 10.0 %)
Y=(X/100) X100
1/2
●
C09 (SP1 lower limit)
●
C10 (SP1 upper limit)
●
C32 (SP2 lower limit)
●
C33 (SP2 upper limit)
• This is a program setup pattern item, and functions as a limitter when setting or
changing SP.
• In the program operation mode, this functions as a limitter on the value obtained
by adding the SP set to the program to the SP bias (variable parameter). The
result of this operation is taken as SP.
• This functions as a limitter when setting or changing the SP in constant-value
data setup.
• In the constant-value operation mode, this functions as a limitter on the value
obtained by adding the SP set to the constant-value operation data to the SP bias
(variable parameter). The result of this operation is taken as SP.