Ambient Weather WS-09 Podręcznik użytkownika - Strona 11
Przeglądaj online lub pobierz pdf Podręcznik użytkownika dla Termometr Ambient Weather WS-09. Ambient Weather WS-09 15 stron. 8-channel wireless refrigerator/freezer thermometer
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4.6 Best Practices for Wireless Communication
Wireless communication is susceptible to interference, distance, walls and metal barriers. We
recommend the following best practices for trouble free wireless communication.
1. Electro-Magnetic Interference (EMI). Keep the console several feet away from computer
monitors and TVs.
2. Radio Frequency Interference (RFI). If you have other 433 MHz devices and
communication is intermittent, try turning off these other devices for troubleshooting
purposes. You may need to relocate the transmitters or receivers to avoid intermittent
communication.
3. Line of Sight Rating. This device is rated at 300 feet line of sight (no interference, barriers or
walls) but typically you will get 100 feet maximum under most real-world installations,
which include passing through barriers or walls.
4. Metal Barriers. Radio frequency will not pass through metal barriers such as aluminum
siding. If you have metal siding, align the remote and console through a window to get a clear
line of sight.
4.7 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 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 CHANNEL/+ button until the channel indication
arrow
is pointing at the appropriate channel.
To enter the temperature calibration mode, press and hold the ALARM/ADJUST and CHANNEL/+
buttons at the same time for 5 seconds and the temperature value will begin flashing. Press the
CHANNEL/+ button to increase the temperature and the CLEAR/- button to decrease the
temperature reading in 0.1° increments. To rapidly increase (or decrease) the temperature reading,
press and hold the CHANNEL/+ or CLEAR/- button.
To return the temperature to the actual or uncalibrated measurement, press the ALARM/ADJUST
button.
Once the displayed temperature equals the calibrated source, press and hold the ALARM/ADJUST
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).
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