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Abnormality detection apparatus and environmetal test apparatus provided with same

An environmental test device and anomaly detection technology, applied in measuring devices, material inspection products, testing pharmaceutical preparations, etc., can solve problems such as refrigerant gas leakage, inability to control temperature and humidity, and achieve low-cost effects

Inactive Publication Date: 2014-10-29
NAGANO SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In the existing environmental test equipment, when there are refrigerant gas leakage, frosting and other adverse phenomena in the refrigerator, there is a problem that the temperature and humidity in the test room cannot be controlled

Method used

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  • Abnormality detection apparatus and environmetal test apparatus provided with same
  • Abnormality detection apparatus and environmetal test apparatus provided with same
  • Abnormality detection apparatus and environmetal test apparatus provided with same

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other Embodiment approach

[0071] The above-described embodiments may also take the following configurations.

[0072] In this embodiment, the case where the abnormality detection device 40 is an independent device separated from the main body controller 30 and can be retrofitted to the existing environmental test device 10 in the manner of subsequent installation has been described, but it is also possible to make the abnormality detection device The function of the control unit 41 of the device 40 is incorporated in the main body controller 30 .

[0073] In this embodiment, the structure including the constant temperature and humidity tank 11 having the test room S inside has been described, but the size of the test room S is not particularly limited. That is, a structure including a constant temperature and humidity chamber having a test room S as a room whose size ensures the entry and exit of workers is also included.

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Abstract

A control unit (41) receives, from a main body controller (30), detected temperature and humidity values, set temperature and humidity values, a heating power value, and a humidifying power value. A comparing / determining unit (46) compares the heating power value and the humidifying power value with predetermined reference power values, respectively, and in the cases where the heating power value and / or the humidifying power value is smaller than the reference power values, the comparing / determining unit outputs abnormality signals that indicate that cooling performance of a refrigeration apparatus (22) has been deteriorated.

Description

technical field [0001] The invention relates to an abnormality detection device and an environmental test device comprising the abnormality detection device. Background technique [0002] Conventionally, when conducting stability tests on pharmaceutical products, etc., environmental test equipment including, for example, a constant temperature and humidity chamber (cavity) has been used in order to test product performance under predetermined temperature and predetermined humidity conditions. In the environmental test equipment, the temperature sensor and the humidity sensor are installed in the test room of the constant temperature and humidity chamber surrounded by the heat insulating wall, and the air conditioner including the refrigerator, the humidifier and the heating machine are controlled according to the measurement value of the above sensors. . Thus, air is circulated between the test chamber and the air conditioner so that the temperature and humidity in the test...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/002G01N33/15G01M99/008
Inventor 小林雄一郎山本优介
Owner NAGANO SCI
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