Description

ASAE/ASABE S578 – Yield Monitor Performance Test Standard

1 Purpose and Scope

1.1 This Standard is intended to provide the basic requirements for a uniform procedure to measure andreport yield monitor accuracy. The goal is to provide a series of repeatable tests that may be used as a basis toevaluate and compare yield monitors under a wide range of operating conditions.

1.2 This Standard covers grain and bulk crop yield monitors. Because crop conditions are variable anduncontrollable, the procedure provides for laboratory testing with controlled material flow rates. The Standardincludes evaluation of all sensors required for the yield monitor including moisture sensors. The Standardapplies to all technologies associated with evaluating yield, mass flow, force, and volume measurements duringcrop harvest.

1.3 This Standard defines tests that include all components contained in the commercial yield monitor exceptthe positioning device. Harvester inputs required for determining yield that cannot be duplicated on the testfixture are simulated to permit testing of all yield calculations.