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Calibration and accuracy checks - def dispensers, Important information, Caution – Gasboy Atlas Fuel Systems Installation Manual User Manual

Page 61

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MDE-4331M Atlas® Fuel Systems Installation Manual · September 2014

Page 6-31

Calibration

Installation

Calibration and Accuracy Checks - DEF Dispensers

The settling time for freshly dispensed DEF is longer than for gasoline or diesel.
Therefore, a three-minute wait time between dispensing the DEF into the prover can and
taking the reading from the sight glass is recommended.

IMPORTANT INFORMATION

Units must be properly purged before calibration or calibration verification. Incomplete
purging of air can result in inaccurate calibration or errors in calibration verification
testing.

IMPORTANT INFORMATION

A stainless steel prover can must be used to calibrate DEF. Do not use a can that has
been used for other fluids. Contaminated DEF can cause damage to vehicle engines, or
contaminated fuel can corrode dispenser material(s), vehicle catalytic converter(s), or
damage vehicle engines.

CAUTION

A ELAFIX 40 Magnetic Adapter (M10656B001) must be pushed over the spout when you
dispense DEF into the prover can during calibration or service. For details, refer to

“DEF

Dispensers - ZVA™ DEF Nozzle”

on

page 6-20

.

Each time a meter is calibrated, a volume of DEF is generated. This DEF must be properly
managed and cannot be discarded into the storm sewer or where it can possibly reach surface
water or groundwater. If the DEF is to be returned to the supplier, store it in a closed, leak-free
container.

Avoid dispersal of spilled material and runoff. Ensure that DEF does not come in contact with
soil, waterways, drains, and sewers. Inform the relevant authorities if the product has caused
environmental pollution (sewers, waterways, soil, or air).

DEF poured back into the tank must be kept clean. Do not allow DEF to become contaminated
during handling.