Liquid Controls IT150N - Manual (Page 9)

Sponsler, Inc. IT150N Remote Totalizer pg 9 DOC# MN-150N-B
C.F. = .013369 / 250 = .000053476
On the factoring P.C.B.:
Set S6 #5 ‘ON’ (
↓ Position) (moves decimal point right 4 places
Set S2@5, S3@3, S4@4, S5@8 (.5348 rounding fourth digit)
Set S1 in ‘0’ Position (0.5348) on the IT150I P.C.B.
Field Correction of Calibration Factor
To adjust the calibration factor to reflect the turbine’s actual response to the operating conditions,
incorporate the following formula:
New C.F =
Actual Quantity
x Present C.F.
Displayed Quantity
Example #8: Actual = 50
Displayed = 52
C.F. = .4000
New C.F.= 50/52 x .4000
= .9615 x .4000
= .3846
On the factoring P.C.B.:
Set S2@3, S3@8, S4@4, S5@6
In the above example, .9615 denotes that the meter is operating 4% fast. Multiplying by the present C.F.
(.4000) by the Actual : Displayed Ratio (.9615) effectively reduces the error by decreasing the C.F. 4%.
Example #9: Actual = 52
Displayed = 50
C.F. = .4000
New C.F. = 52/50 x .4000
= 1.04 x .4000
= .4160
On the Factoring P.C.B.:
Set S2@4, S3@1, S4@6, S5@0
In the above example, 1.04 denotes that the meter is operating 4% slow. Multiplying the present C.F.
(.4000) by the Actual : Displayed Ratio (1.04) effectively reduces the error by increasing the C.F. 4%.
Formula #4