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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.
5.6.1 Remote Sensor Temperature Calibration
Prior to entering the calibration mode, press the
CH/+
button to select the remote temperature sensor
you wish to adjust.
To enter the temperature calibration mode, press and hold the
SET and CH/+
buttons at the same time
for 5 seconds and the
SENSOR
temperature value will begin flashing. Press the
CH/+
button to
increase the temperature and the
MIN/MAX
button to decrease the temperature reading in 0.1°
increments. To rapidly increase (or decrease) the temperature reading, press and hold the
CH/+
or
MIN/MAX
button.
To return the temperature to the actual or uncalibrated measurement, press the
SET
button.
Once the displayed temperature equals the calibrated source, press and hold the
SET
button for three
seconds, or wait 15 seconds for timeout, and the temperature value will stop flashing.
5.6.2 Indoor (Console) Temperature Calibration
To enter the indoor temperature calibration mode, press and hold the
SET and MIN/MAX
buttons at
the same time for 5 seconds and the
INDOOR
temperature value will begin flashing. Press the
CH/+
button to increase the temperature and the
MIN/MAX
button to decrease the temperature reading in
0.1° increments. To rapidly increase (or decrease) the temperature reading, press and hold the
CH/+
or
MIN/MAX
button.
To return the temperature to the actual or uncalibrated measurement, press the
SET
button.
Once the displayed temperature equals the calibrated source, press and hold the
SET
button for three
seconds, or wait 15 seconds for timeout, and the temperature value will stop flashing.
Discussion
:
Temperature errors can occur when a sensor is placed too close to a heat source (such
as a building structure, the ground or trees).
To calibrate temperature, we recommend a mercury or red spirit (fluid) thermometer. Bi-metal (dial)
and other digital thermometers are not a good source and have their own margin of error. Using a local
weather station in your area is also a poor source due to changes in location, timing (airport weather
stations are only updated once per hour) and possible calibration errors (many official weather stations
are not properly installed and calibrated).
Place the sensor in a shaded, controlled environment next to the fluid thermometer, and allow the
sensor to stabilize for 48 hours. Compare this temperature to the fluid thermometer and adjust the
console to match the fluid thermometer.