| 摘要 |
PURPOSE:To obtain accurate flow rates without errors in the flow rates due to the kinds of oils and temperatures, by the constitution, wherein signals from a flow-rate pulse generator and a temperature sensor are inputted in a control device, temperature correction is performed by the specific gravity, which is inputted previously, and the value of the flow rate is obtained. CONSTITUTION:Signals from a flowmeter 2 and a flow-rate pulse generator 4 and a signal from a temperature sensor 3 are inputted to a control device 5. A volume-conversion-factor table is stored in the control device 5 in advance. The specific gravity of oil, which is measured by a setting dial 6, is inputted to the control device. The converted volume is selected based on the signal from the sensor 3 and the specific gravity, which is inputted before. The signal from the flow-rate generator 4 and the flow rate, which undergoes temperature correction, are computed by the control device 5 and the integrated flow rate is displayed on a display device 9. Since the temperature correction is performed based on the specific gravity and the corrected value of the flow rate is obtained, errors are not yielded due the kind of oils and temperatures, and the accurate flow rates can be always obtained. |
