| 摘要 |
PURPOSE:To make it possible to perform tests in a broad range, by arbitrarily changing and controlling the temperatures of the atmospheres in test chambers at high temperature, low temperature and medium temperature, and providing the state of constant temperature and constant humidity in the test chamber. CONSTITUTION:Main parts are arranged in an outer cabinet 1 through heat insulating walls 2. A test chamber 3, a high temperature chamber 4, a low temperature chamber 5 and a medium temperature chamber 6 are provided at a front central part, an upper part, a lower part and a rear part, respectively. The chambers are communicated with blowing ports 12, 22 and 32 and sucking ports 13, 23 and 33. Switching doors 11, 21 and 31 are provided at opening parts. A driving motor is operated with a program setter. The temperatures of the test chambers are changed into the required temperatures. A humidifier 41 is further provided. A gas, into which moisture is added, is sent into the test chamber 3 through a moisture feeding port 42 and the medium temperature chamber 6. The inside of the test chamber 3 is made to be the state of constant temperature and constant humidity. The temperatures of the gases in the high temperature chamber 4, the low temperature chamber 5 and the medium temperature chamber 6 are regulated to the required temperatures with temperature regulators. In this way, the tests in the broad range can be conducted.
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