Ambient Weather WS-25 Посібник користувача - Сторінка 15
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and hold the [+] or [-] key for three seconds to increase or decrease rapidly.
Press and hold the ADJUST key for three seconds to reset to the uncalibrated or measured value.
Press the SET key to switch to the next channel (1 through 8).
To exit the calibration mode at any time, press the SNOOZE/LIGHT button. The calibration mode will
automatically if no button is pressed for 30 seconds.
3.8.2 Setting Calibrated Humidity
In normal mode, press and hold the SET and MIN/MAX keys at the same time for five seconds to
enter the humidity calibration mode. The indoor humidity will begin flashing.
Press the [+] or [-] key to increase or decrease the humidity reading (in increments of 1%). Press and
hold the [+] or [-] key for three seconds to increase or decrease rapidly.
Press and hold the ADJUST key for three seconds to reset to the uncalibrated or measured value.
Press the SET key to switch to the next channel (2 through 8).
To exit the calibration mode at any time, press the SNOOZE/LIGHT button. The calibration mode will
automatically if no button is pressed for 30 seconds.
Note: Humidity is a difficult parameter to measure accurately and drifts over time. The calibration
feature allows you to zero out this error. To calibrate humidity, you will need an accurate source, such
as a sling psychrometer or Humidipaks One Step Calibration kit.
Note: 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).
Note: 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.
3.9 Restoring the Console to Factory Default
To restore the console to factory default:
1. Remove one battery from the display console and wait 10 seconds.
2. Press and hold the MIN/MAX button and insert the battery. Hold the MIN/MAX button for 5
seconds after power up.
3. Resync the sensors again per Section 3.6.
Version 1.2
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