CONTROL METHOD IN OIL SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a control method in an oil supply device which enhances reliability of a display provided in a nozzle, and hardly generates loss in oil supply.SOLUTION: An oil supply device comprises: a metering machine 10 having a first display LCD1 for displaying oil supply information including a current oil supply amount and oil supply money amount during oil supply; a nozzle 20 connected to the metering machine 10 through a hose 30; and a second display LCD2 provided in the nozzle 20 for displaying the oil supply information which is transmitted wirelessly from the metering machine 10. A control method in the oil supply device includes: a step of wirelessly transmitting the oil supply information from the metering machine 10 to the second display LCD2 for each first predetermined time during oil supply; a step of repeatedly determining whether or not the transmitted oil supply information is received within a second predetermined time; a step of displaying the oil supply information on the second display LCD2 if the oil supply information is received with in the second predetermined time; and a step of notifying an operator of a failure if the oil supply information is not received within the second predetermined time.SELECTED DRAWING: Figure 1