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Operation Guide DQR-300U
6
• To clear the high humidity and low humidity data memory, press the CLEAR button (9).
New data starts to be stored after memory is cleared.
USING THE SUB-UNIT
Data Transfer from the Sub-unit
• Data is transferred from the sub-unit to the main unit every three minutes.
• The sub-unit is able to send data to the main unit up to an unobstructed distance of about 30 meters.
• The data receive status is indicated on the display of the main unit by the icons shown below.
Receive successful Receive unsuccessful
• If a receive operation is not successful for some reason, the display of the main unit shows dashes (–) in place of
the sub-unit temperature and humidity values.
• If you experrience problems with data transfer, press the RE-SYNC button (A) to synchronize the two units.If
this does not eliminate the problem,try changing the positions or orientations of the main unit and sub-unit.
• The transferred data includes temperature and humidity data.
Switching between Celsius and Fahrenheit
• Push the °C/ °F button (F) to toggle between Celsius (°C) and Fahrenheit (°F).
Celsius (°C) Fahrenheit (°F)
°C/ °F button (F)
Switching between Current Temperature and Humidity
• Press the SELECT button (C) to toggle the display between the current temperature and current humidity.
• Holding down SELECT button (C) for about two seconds causes the display to continually toggle between the
temperature and humidity at five-second intervals.
Temperature Humidity
SELECT button (C)
Location
• Place the sub-unit in a location where it will not be exposed to rain, direct sunlight, or other elements.
CLEAR button (9)
USING THE WEATHER FORECAST FEATURE
A built in pressure sensor makes it possible to forecast upcoming weather over the next 12 hours based on
changes in barometric pressure. Note that these forecasts are not absolutely accurate, and are intended for
general reference only.
Weather Forecasts
• Barometric pressure readings are taken every 15 minutes. Weather forecasts are based on the last six readings.
Upcoming weather forecasts are displayed using the graphic indicators shown below.
Sunny Sunny, some clouds Cloudy
Rain Stormy
• Upcoming weather trends are indicated as shown below.
Improving weather Deteriorating weather Stable weather
MAIN UNIT/SUB UNIT COMMUNICATION PRECAUTIONS
Sub Unit Location
• Certain environmental conditions can greatly reduce the communication range.
• Avoid the following locations for the sub-unit.
Inside, among
buildings, or near
neon signs
Inside a vehicle Near refrigerators
or other household
appliances, near
office equipment,
mobile phones or
wireless LAN
devices.
Near a
construction site,
airport, or other
sources of
electrical noise,
underground or in
tunnels, near
railroads,
highways, or radio
stations with
interfering
frequencies.
Near high-tension
power lines
• Locating the sub-unit near a device that transmits radio signals using the same frequency as this product can
cause communication failure of this product.
• Avoid using multiple products in the same area. Doing so can cause mixing of their signals.
RADIO, EMC AND SAFETY REGULATIONS
This product complies with technical specifications required under EN 301 489-3,EN 300-220-3 and EN 60950.