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Many installations are not perfect and installing the weather station on a roof can be
difficult. Thus, you can calibrate for this error with a wind speed multiplier.
In addition to the installation challenges, wind cup bearings (moving parts) wear over
time.
Without a calibrated source, wind speed can be difficult to measure. We recommend
using a calibrated wind meter (not included) and a constant speed, high speed fan.
(7) The rain collector is calibrated at the factory based on the funnel diameter. The bucket
tips every 0.01” or 0.1m of rain (referred to as resolution). The accumulated rainfall can
be compared to a sight glass rain gauge with an aperture of at least 4” or 0.1m.
Make sure you periodically clean the rain gauge funnel.
Note:
The purpose of calibration is to fine tune or correct for any sensor error associated with
the devices margin of error. Errors can occur due to electronic variation (example, the
temperature sensor is a resistive thermal device or RTD, the humidity sensor is a capacitance
device), mechanical variation, or degradation (wearing of moving parts, contamination of
sensors).
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. The purpose of your weather
station is to measure conditions of your surroundings, which vary significantly from location to
location.
NOTE:
UV Calibration MUST be performed every 2 to 3 months to improve results. Over time,
UV Index may alter results based on bright and strong sunlight conditions. This is why diligent
UV Calibration is recommended.
3.13 Factory reset
Figure 38: Factory Reset Screen
