| 摘要 |
<p>PROBLEM TO BE SOLVED: To monitor a temperature inside a thermostatic chamber even during a power interruption and to minimize the rise of the temperature inside the container by providing the device with a chamber temperature detection means, a power interruption detection means, an alarm issuing means by the detection signals of one of them and the means for transmitting alarm signals to an external equipment. SOLUTION: A CPU 6 incorporates an A/D converter, measures the stabilized voltage 7 of a circuit 2, and when it becomes less than a prescribed voltage, issues power interruption or voltage drop signals and reports that the power source state of the thermostatic chamber is not good. Similarly, when the voltage of a chamber temperature measurement sensor 9 becomes less than prescribed, it is reported that it is an alarm temperature. Thus, when the power interruption or voltage drop signals are issued, even when the inside of the chamber does not reach the alarm temperature, report signals are issued. The reporting means, that are the means for both of power interruption reporting and alarm temperature reporting, are a digital communication means 8 for performing transmission to the external equipment, a built-in alarm lamp 10 and a buzzer 11.</p> |
