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Gasboy Atlas Start-up User Manual

Page 144

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Page 6-24

MDE-4334D Atlas™ Start-up and Service Manual · July 2013

Hydraulic/Mechanical Components

Meter Calibration

Setting Calibration

Located on the side of each meter is a calibration wheel for setting the calibration.

To adjust the meter, proceed as follows:

1

Check the meter by delivering the product into an appropriately-sized Prover Can. If the
amount in the Prover Can does not match with the display (within a tolerance), proceed with
the remaining steps to calibrate the meter.

2

Remove the seal wire from the locking pin.

3

Remove the locking pin and turn the wheel to adjust the measurement. Moving the pin to one
adjacent hole position changes the calibration by 2/3-cubic-inch per 5 gallons dispensed. To
change by half this amount, use the alternate locking pin hole on the opposing side of the
calibration wheel.

Figure 6-11: Setting Calibration

+

_

INCREASE

DECREASE

INCREASE

DECREASE

+

_

Locking Pin

4

Turn clockwise to decrease the amount of fuel being delivered to the Prover Can (previously
over-dispensed).

5

Turn counter-clockwise to increase the amount of fuel delivered to the Prover Can (previously
under-dispensed).

6

Check the calibration. If the calibration is not correct, repeat steps

4

through

5

. If the

calibration is correct, proceed to step

7

.

7

After the calibration is complete, reinstall the locking pin and secure with a seal wire.