Meters, About meters, Calibration adjustment for e85/def units – Gasboy Atlas Start-up User Manual
Page 146: Electronic calibration (ecal)] -26, Meters -26, About meters -26, Warning
Page 6-26
MDE-4334D Atlas™ Start-up and Service Manual · July 2013
Hydraulic/Mechanical Components
Meters
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 must 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.
Calibration Adjustment for E85/DEF Units [Electronic Calibration (ECAL)]
For the ECAL procedure of E85/DEF units, refer to MDE-4331 Atlas Fuel Systems
Installation Manual.
Meters
• Wear eye protection. Residual pressure and entrapped fuel may still be present
and may drain or spray while removing the 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 the 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
). For Gasboy Atlas Ultra-Hi units, refer to
“Replacing Cylinder Cover and Gasket
. 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.
Note: The version of the meter used for E85 units (T19976-G5) is specially plated and
contains special seals to handle E85 fluids. Do not use a standard meter to dispense
E85.
Model and Date Codes
The model number is stamped on each meter. Refer to