ANOMALY DETECTOR AND ENVIRONMENTAL TESTER INCLUDING THE SAME

摘要

A controlling section 41 receives determined temperature and humidity values, set temperature and humidity values, a heating electric power value, and a humidifying electric power value from a body controller 30. A comparison and determination section 46 compares the heating electric power value and the humidifying electric power value with respective predetermined reference electric power values, and when at least one of the heating electric power value or the humidifying electric power value is less than a corresponding one of the reference electric power values, the comparison and determination section 46 outputs an anomaly signal indicating that the cooling capacity of a refrigeration apparatus 22 has been reduced.

主权项

1. An anomaly detector configured to be add to an environmental tester including
a thermostat-humidistat container including a test chamber, a heating device for heating the test chamber at an amount of heating corresponding to an amount of electric power supplied to the heating device, a humidifying device for humidifying the test chamber at a humidification amount corresponding to an amount of electric power supplied to the humidifying device, and a refrigeration apparatus in which a refrigerant is circulated to cool the test chamber by a refrigeration cycle, the anomaly detector comprising: a controlling section configured to receive a heating electric power value representing the amount of electric power supplied to the heating device and a humidifying electric power value representing the amount of electric power supplied to the humidifying device, wherein the controlling section compares the heating electric power value and the humidifying electric power value with predetermined reference electric power values of the heating device and the humidifying device, respectively, and when at least one of the heating electric power value or the humidifying electric power value is less than a corresponding one of the reference electric power values, the controlling section makes a determination that a cooling capacity of the refrigeration apparatus has been reduced, and outputs an anomaly signal indicating the determination.