Red Lion LEGEND User Manual
Page 69
RATE SCALING EXAMPLE: (Cont’d)
EXAMPLE #2: (Cont’d)
We now have all the information necessary to scale the rate. The Total Scaling,
“K
T
”, is calculated using Formula #1 as shown below.
K
T
= Display Units
¸
Number of Pulses = 810
¸
5600 = 0.144643
It is noticed that there are more significant digits in the Total Scaling, “K
T
”,
than there are available for the Scale Factor, “SF”. To acquire the maximum
amount of significant digits for the Scale Factor, Formula #2 is used and a Scale
Multiplier value of 0.1 is selected.
SF = K
T
¸
SCM = 0.144643
¸
0.1 = 1.4464
The Scale Factor, “SF”, equals 1.4464 (1.44643 rounded to 4 decimal places).
This provides the maximum amount of conversion accuracy possible.
The final step is to select a Rate Conversion Factor. The Rate Conversion
Factor is chosen to be Rate Per Minute as was required.
-67-