| 摘要 |
PURPOSE:To prevent the breaking of a lead wire and increase the durability by a constitution wherein a liquid-level detecting part equipped with an induction nozzle and a liquid-level detecting electrode and a liquid-level detecting circuit connected to the former are fixed to each other and are driven unitedly. CONSTITUTION:The induction nozzle 12 and a pair of liquid-level detecting electrodes 11 and 11' are fixed to a retainer 13. The electrodes 11 and 11' are connected to the secondary coil 16 fitted to a core 18 by the lead wires 15 and 15'. The primary coil 19 is connected to an impedance detecting circuit 21 by a lead wire 22. The liquid-level detecting part 10A and the liquid-level detecting circuit 10C are fixed to each other by a connecting plate 17. The entire device is driven as one body in the direction of an arrow A by a power-source part 10B through the intermediary of a control rod 14 fitted to the retainer 13. Therefore, it becomes possible to pevent the breaking of the lead wires 15 and 15' and increase the durability of the device. |
