Gasboy Atlas Start-up - Manual (Page 32)

Start-up Procedures Meter Calibration
Page 3-4 MDE-4334D Atlas™ Start-up and Service Manual · July 2013
Meter Calibration
Calibrate all the units before their use by customers. For instructions on calibrating units, refer
to
“Hydraulic/Mechanical Components” on page 6-1 .
DEF and E85 units are electronically calibrated. For calibrating DEF/E85 units (ECAL
procedure), refer to MDE-4331 Atlas Fuel Systems Installation Manual.
Note: DEF units must be purged properly before calibration or calibration verification.
Incomplete purging of air can result in inaccurate calibration or errors in calibration
verification testing. Improper purging can cause damage to meters and shorten their
life. DEF units create special difficulties regarding purging, especially because of the
ability of the fluid to hold air and commonly the pumps used with the devices have no
air separation capability. Overhead plumbing is especially troublesome.
Gasboy Atlas (Gallon Unit of Measure)
For Gasboy Retail unit, temporary pricing must have already been entered into the unit as
outlined in
“Purging Air from System” on page 6-9 to allow dispensing and calibration.
Current production Gasboy Atlas pumps/dispensers, excluding units designed for DEF or E85
are tested using US gallons (calibration verification is still required) and programmed to
default programming values. Retail units may be operated and purged in normal mode after
entering prices. On retail units, purging can be done for units eventually, to be converted to
metric mode while the unit is in gallon mode.