| 摘要 |
The method maintains drying time constantly regardless to ambient temperature variation. The on-off time of heater is controlled by difference between detected ambient temperature and set temperature so that temperature of drying cavity is hold at set temperature. The method comprises functions: (A) enlarging turn- on time of an auxiliary heater when external temperature is lower than set temperature; (B) shortening turn-on time of n auxiliary heater when external temperature is higher than set temperature; (C) turning off main and auxiliary heater when the drying cavity temperature is higher than set temperature.
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