Red Lion GEMINI 52 - Manual (Page 54)

RATE SCALING EXAMPLES (Cont’d)
We now have all the information necessary to scale the rate. The Total Scaling
Factor “K
T
”, is calculated using Formula #1 as shown below.
K
T
= Display Units/Number of Pulses
K
T
= 810/5600 = 0.144643
It is noticed that there are more significant digits in the Total Scale Factor,
“K
T
”, than there are available for Scale Factor, “SF”. In order 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
SF = 0.144643/0.1 = 1.4464
The Scale Factor, “SF”, then becomes 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.
-52-