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温度計 Ambient Weather WS-0416のPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Ambient Weather WS-0416 16 ページ。 Wireless indoor/outdoor 8-channel thermo-hygrometer

5.8 Adjustment or Calibration

Note: The calibrated value can only be adjusted on the console. The remote sensor(s) always

displays the un-calibrated or measured value.

Note: The measured humidity range is between 10 and 99%. Humidity cannot be accurately

measured outside of this range. Thus, the humidity cannot be calibrated below 10% or above 99%.

The purpose of calibration is to fine tune or correct for any sensor error associated with the devices

margin of error. The measurement can be adjusted from the console to calibrate to a known source.

Calibration is only useful if you have a known calibrated source you can compare it against, and is

optional. This section discusses practices, procedures and sources for sensor calibration to reduce

manufacturing and degradation errors. Do not compare your readings obtained from sources such as

the internet, radio, television or newspapers. They are in a different location and typically update once

per hour.

The purpose of your weather station is to measure conditions of your surroundings, which vary

significantly from location to location.

Prior to entering the calibration mode, press the CH/+ button to select the humidity sensor you wish to

adjust.

To enter the humidity calibration mode, press and hold the SET and MIN/MAX buttons at the same

time for 5 seconds and the humidity value will begin flashing. Press the CH/+ button to increase the

humidity and the MIN/MAX/- button to decrease the humidity reading in 1% increments. To rapidly

increase (or decrease) the humidity reading, press and hold the CH/+ or MIN/MAX/- button.

To return the humidity to the actual or uncalibrated measurement, press the SET button.

will be displayed when the humidity calibrated measurement.

Once the displayed humidity equals the calibrated source, press and hold the SET button for three

seconds, or wait 15 seconds for timeout, and the humidity value will stop flashing.

Discussion: Humidity is a difficult parameter to measure electronically and drifts over time due to

contamination. In addition, location has an adverse effect on humidity readings (installation over dirt

vs. lawn for example).

Official stations recalibrate or replace humidity sensors on a yearly basis. Due to manufacturing

tolerances, the humidity is accurate to ± 5%. To improve this accuracy, the indoor and outdoor

humidity can be calibrated using an accurate source, such as a sling psychrometer:

or one step humidpak calibration kits (reference Section 9). You can also use common table salt,

water and a plastic bag:

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