| 摘要 |
A method of and device for checking hygrometers and hygrostats, according to which the hygrometer or hygrostat is at its place of mounting checked by means of a reference device, such as a reference hygrometer directly indicating the air humidity. The reference hygrometer is first by means of a corresponding saturated solution calibrated to a standard climate corresponding to the operational climate (Betriebsklima) with regard to the relative humidity, and subsequently at the place of mounting of the device to be checked. The reference hygrometer is together with the hygrometer to be checked exposed to the same conditions. After the reference device has been adapted to the operational conditions (Betriebsbedingungen), the device to be checked is equalized with the reference device.
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