| 摘要 |
PURPOSE:To permit to wash a humidifying pan automatically during the operation of the device by a method wherein washing water is supplied into the humidifying pan after regulating the temperature thereof to the same temperature of water in the humidifying pan. CONSTITUTION:In the constant temperature and constant humidity keeping device equipped with the humidifying pan 8 provided with an electric heater 7 to evaporate humidifying water therein, a water feeding device, capable of supplying water having the same temperature as the water temperature in the humidifying pan 8, is provided additionally. In the water feeding device, a tank 11, equipped with the electric heater 12, is connected to the humidifying pan 8 through a pipeline interposing an opening and closing valve 14. The humidifying pan 8 and the electric heater 7 are washed by overflowing water in the humidifying pan 8 through a pipe 15. Washing of the humidifying pan can be effected during the operation of the device in such manner, therefore, labor to wash the humidifying pan manufally may be eliminated and testing may be effected for a long period of time without changing humidifying condition by the supply of the washing water.
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