MDE-4334C Atlas Start-up and Service Manual · April 2008
Page 7-27
Meters
Hydraulic/Mechanical Components
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 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 should then show 100 gallons both on
the meter counter and on the prover.
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 actual prover measurement,
M
is the dispenser volume reading, and
A%
is the
percent adjustment for the adjuster.
Meters
• Wear eye protection. Residual pressure and entrapped fuel may still be present
and may drain or spray while removing parts.
• Fire and explosion could result in severe injury or death.
• Test and close the shear valves involved. Shut off power to the unit.
• Remove parts slowly. Collect fuel in approved containers.
• Clean up all spills promptly.
WARNING
About Meters
The Gasboy Atlas CFT meter is used on standard units (refer to
on
).
For Gasboy Atlas Ultra-Hi units, see
Replacing Cylinder Cover and Gasket (Cylinder Cover
. Gasboy does not recommend a major field overhaul of these meters.
Suggested repairs are related to fixing external leaks. The only serviceable parts on the meter
are gaskets and seals. Most repairs require removing the meter from the unit.
Model and Date Codes
The model number is stamped on each meter. Refer to