| 摘要 |
The invention is provided to reduce wasteful energy consumption by performing a simple check that determines if the supply/exhaust openings of an oven are closed. The gas chromatograph comprises: memory means 24 that stores in advance the standard power consumption of the oven as a function of the set temperature, and a flap closure checking means 25 which compares the measured value of heater power consumption measured by heater power measurement means 23 at any set temperature against a standard power consumption for the set temperature that is determined from said function and, if the former exceeds the latter by more than a predetermined limit, judges that a closure failure of flap 13 has occurred.
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