| 摘要 |
PURPOSE:To realize a humidity control with a small-size controller, by performing an input operation by the CPU for the dry-bulb and wet-bulb temperature input signals received an A/D conversion and then performing a relative humidity operation from both signals mentioned above. CONSTITUTION:An input operation such as the linearization or the like is given by the CPU6 to the dry-bulb and wet-bulb temperature input signals TD and TW which are converted into the digital signals by the A/D converter 3. Then a relative humidity operation is performed from these two signals. A comparative operation is given to the dry-bulb and wet-bulb temperature values TD' and TRH' of the local L set selectively by the setter 4 during the local operation or to the set input signals TSD and TRH, the temperature TD and the relative humidity operation value of the remote R during the remote operation respectively. Thus a control signal is delivered to a heater or a moistener. At the same time, each of the signals TD and TW is delivered in an analog way to outside to be recorded on a recorder or the like. |
