Youshiko YC9510 Operation Manual page 35

Parameter Type of
Calibration
Temperature Offset
Humidity Offset
ABS Offset
Barometer
REL Offset
Barometer
Wind Offset
Direction
Wind Gain
Rain Gain
Table 6: Calibration parameter summarization
(1) 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 digital thermometers (from other weather
stations) 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).
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.
Default Typical Calibration Source
Current Value Red Spirit or Mercury
Thermometer (1)
Current Value Sling Psychrometer (2)
Current Value Calibrated laboratory grade
barometer
Current Value Local airport (3)
Current Value GPS, Compass (4)
1.00 Calibrated laboratory grade
wind meter (5)
1.00 Sight glass rain gauge with an
aperture of at least 4" or 0.1m (6)
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