Liquid Controls T650N SERIES - Manual (Page 8)

Sponsler, Inc. T650N Series Cryogenic Truck Totalizer pg 8 DOC# MN-650
Incorporating the “0-1” function:
S7 in Position #3 (100 divider; moves decimal right 2 places) Decimal must move to the right of the 1
digit.
S3 at 2, S4 at 5, S5 at 6, S6 at 6
S2 in “1” position
The meter would indicate a total quantity of 520,001.2 SCF
(41,381,600 X .2566) + 41,381,600 for a difference of 1 SCF
100
CALIBRATION FACTOR
Field Correction
To adjust the calibration factor to reflect the actual response of the turbine to the operating conditions, apply the
following formula:
New Calibration Factor =
Actual Total
X Calibration Factor
Meter Total
Example #4: Actual Total = 50
Meter Total = 52
C.F. = .4000
50/52 X .400 = New Calibration Factor
.9615 X .4000 = .3846
Insert .3846 into S3 – S6 respectively
In the above example .9615 denotes that the meter is operating 3.85% fast & multiplying the present calibration factor
(.4000) by the ratio of Actual Total: Meter Total (.9615) reduces the calibration factor 3.85%.
Calibration Factor – Change of Calibration Engineering Units
Assume that rather than gallons, liters are the desired engineering unit.
Example #5: K-Factor = 230 pulses per gallon
Liters = 3.785 per gallon
3.785
= Calibration Factor
230
= .016456 for display of liters
Set S7 at 3 (100 divider; moves decimal right 2 places)
Set S2 at 1 (incorporates “0-1” function)
Set S3 at 6, S4 at 4, S5 at 5, S6 at 6
Temperature Compensation:
The temperature compensator is discussed in detail in the attached Model 820 Supplement. The Model 820
Temperature Compensator digitally converts a resistive temperature representation to a density correction factor that
corrects for variations in mass related to temperature. Incorporation of the following formula provides a means to
verify field accuracy.
Quantity Displayed =
500 X Time in Seconds X CF
X (Temperature Correction Factor)
Divider
( )