Liquid Controls AN25 - Manual (Page 7)

Sponsler Co., Inc. AN25 Totalizer/Rate Indicator pg. 7 DOC#: MN-AN25
Calibration ‘0-1’ Function
The ‘0-1’ function provides enhanced accuracy when totalization encompasses a large quantity for an extended
period of time such as SCF produced in a 24 hour period.
The ‘0-1’ function should be incorporated only when both conditions listed below are met:
1) C.F.’s 1
st
digit right of decimal is 1
2) C.F.’s 5 th digit right of decimal is not 0
Example #3
Assume a turbine has a K-Factor of 79.58 pulses per SCF and the customer product demand is
520,000 SCF a day
C.F. = 1/79.58
= .0125659 = .12566
÷ 10 Note: Both conditions are met
Without the ‘0-1’ function: S6 #2 ‘ON’ (
÷ 10)
S2@1, S3@2, S4@5, S5@6
S1 in ‘0’ Position
A usage of 520,000 SCF = 41,381,600 total pulses (520,000 x 79.58) and using the C.F. of S1-
S6 the displayed quantity is 519,752 SCF ( ) rather than 520,000 for a
difference of 248 SCF.
With the ‘0-1’ function: Set S6 #2 ‘ON’ (
↓ Position) for ÷ 100 (moves decimal right 2 places)
Set S2@2, S3@5, S4@6, S5@6 (.2566)
Set S1 in ‘1’ Position (1.2566)
as stated above the 24 hr usage is 520,000 SCF. The displayed quantity is now 520,001 SCF
( ) for a difference of 1 SCF.
Change of Calibration Engineering Units
Assume that liters rather than gallons is the desired engineering unit.
Example # 4
K-Factor = 250 pulses per gallon
Liters = 3.785 per gallon
C.F. =
Units per Gallon
Pulses per Gallon
C.F. = 3.785 / 250
C.F. = .01514 for display of liters
On the Factoring P.C.B.:
Set S6 #2 ‘ON’ (
↓ Position) Moves decimal point right 1 place
Set S2@1, S3@5, S4@1, S5@4 (.1514)
Set S1 in ‘0’ Position (0.1514)
Note: The ‘0-1’ function was not incorporated because only 1 of the 2 conditions was met
C.F.’s 1 st digit right of decimal is 1
C.F.’s 5
th
digit right of decimal is 0
41, 381,600 x .1256
10
41, 381,600 x 1.2566
100