| 摘要 |
PURPOSE:To ensure a simple and automatic display with a high precision for the actual water content value and then increase the efficiency of measurement, by providing an altering device for display value of a specified structure to a control electric circuit and thus displaying the measured water content value larger than an optional lower limit value of the reference grain density. CONSTITUTION:The output terminal of the weighing device 18 is connected to the shift circuit 36. The circuit 36 is connected to the setting circuit 37 which can control the shift value by the type of grain. At the same time, the output side of the circuit 36 is branched into the lead wires of two routes. One of these two wires is connected to the other terminal of the input side of the compensating circuit 31, and the other wire is connected to the lower limit value detector 38. The detector 38 incorporates a comparator 39, and the other lead wire and the lead wire from the setter 40 are connected to the input side of the comparator 39. At the same time, the output side is connected to the relay 41. Thus the contact 33 of the altering device 32 has a changeover action by the excitation and demagnetization of relay 41. In such constitution, the efficiency of measurement is greatly increased. |
