Combine with a bypass device

A self-propelled combine configured to collect and handle harvested material, the combine comprising:

• a grain elevator configured to convey a flow of harvested material from a conveying and cleaning device of the combine to a grain tank of the combine;
• and
• a bypass device positioned at or relative to the grain elevator and configured to guide a partial flow of harvested material that is a part of the flow of harvested material that is guided through the grain elevator, the bypass device comprising an optical measuring device configured to determine one or more harvested material properties of the partial flow of harvested material and including at least one capacitive measuring device configured to determine the one or more harvested material properties of the partial flow of harvested material;
• wherein the bypass device includes each of:
• a feed opening through which the partial flow of harvested material from the grain elevator is configured to flow into the bypass device;
• an outlet opening through which the partial flow of harvested material is configured to flow into the grain elevator after flowing through the optical measuring device;
• and
• an intermediate opening through which the partial flow of harvested material is configured to flow into the grain elevator.

A method for operating a self-propelled combine that includes a grain elevator that conveys a flow of harvested material from a conveying and cleaning device of the combine to a grain tank of the combine, and a bypass device positioned at or relative to the grain elevator and that guides a partial flow of harvested material that is a part of the flow of harvested material that is guided through the grain elevator, the method comprising:

• determining, using an optical measuring device of the bypass device, a moisture value of the partial flow of harvested material of the bypass device;
• determining, using a capacitive measuring device of the bypass device, an electrical capacitance of at least a part of the partial flow of the harvested material;
• and
• determining, based on the moisture value and the electrical capacitance, a weight of the partial flow of harvested material of the bypass device;
• wherein the bypass device includes one or more of:
• a feed opening through which the partial flow of harvested material from the grain elevator is configured to flow into the bypass device;
• an outlet opening through which the partial flow of harvested material is configured to flow into the grain elevator after flowing through the optical measuring device;
• or
• an intermediate opening through which the partial flow of harvested material is configured to flow into the grain elevator;
• wherein the bypass device includes a collecting container that collects the partial flow of harvested material;
• wherein the bypass device includes a screw conveyor that conveys the partial flow of harvested material to the optical measuring device;
• and
• wherein the collecting container is formed between the feed opening and the screw conveyor.