Gasboy Atlas Fuel Systems Owner Manual - Manual (Page 50)

The Atlas Fuel System Operating Sequence for Series 9800 Only
Page 46 MDE-4363F Atlas™ Fuel Systems Owner’s Manual · September 2011
9850K and 9850KX Models
To adjust the calibration for 9850K and 9850KX Models, proceed as follows:
1 Inspect the meter registration by delivering the product to a reliable, accurate, 50, or 100
gallon (or metric equivalent) Prover Can.
2 Convert the amount of error to gallons per 100 (provides a percent figure) or gallons per
thousand (provides one-tenths of a percent figure).
3 Read the setting indicated on the adjuster. The amount of error is added to or subtracted from
this setting. The adjuster is shown in graduated divisions of 1%, 0.1%, 0.02%.
Figure 3-26: Models 9850K and 9850KX
4 Reset the adjuster by loosening the clamp.
To decrease the amount delivered, turn the thimble in on the barrel.
To increase the amount delivered, turn the thimble out (unscrew it). After resetting the
adjuster, tighten the clamp.
Note: Always make the final adjustment by turning the thimble in. If the new setting is a
higher number than the original, turn it back beyond the required figure and come back
to it.
For example: Assume that the adjuster setting at the start of the test reads 2.05. The product is
run through the meter into a Prover Can until the counter registers 100 gallons.
Assume that the Prover Can shows a volume of 98.7 gallons (1.3 gallons short).
Since the adjuster graduations are in percent readings, this 1.3 could be added
directly to the adjuster reading (2.05 plus 1.3 equals 3.35 on the adjuster). A
rerun through the meter must then show 100 gallons both on the meter counter
and on the Prover Can.
If you are measuring in increments of less than 100 gallons, use this simple
formula to determine the percentage by which the adjuster must be adjusted:
(P - M)/M = A%
where P is the prover measurement, M is the meter reading, and A% is the
percent adjustment for the adjuster.