5
GB
SENSOR TRANSMITION STATUS
If blanks "----" appear on the outdoor temperature display of the
main, the unit is not receiving a signal from the remote thermo
sensor. The user may be able to receive a signal by forcing a
signal search.
To force a remote sensor signal:
Press and hold THERMO for two seconds. The unit will search
for a remote thermo-sensor signal.
Search mode will last for about sixty seconds. If the unit still
cannot receive a signal, check the batteries to ensure they are
properly installed and have ample power. Try repositioning the
units as they may be having temperature transmission block as a
result of interference.
Note:
Reasons for not receiving a signal from the remote thermo
sensor may include:
1. The batteries of the remote sensor, the main unit, or
both may be low. Battery-low icons should indicate that
battery power is low and the batteries require changing.
• When the temperature falls below freezing point, the
batteries will freeze. Frozen batteries will have a
lower voltage and result in a lower transmission
radius.
2. The transmission range is too far.
• Shorten the distance.
3. The transmission path is cluttered with obstacles and
interference.
• Shorten the distance or reposition the remote sensor
or the main unit.
HOW TO READ THE PRESSURE TREND
The JMR838WFA gives a barometric pressure trend for the last
hour. As illustrated below, a rising trend (arrow) indicates
improving weather. Deteriorating weather conditions are indicated
with a falling trend (arrow).
WEATHER FORECAST FUNCTION
The JMR838WFA detects barometric pressure changes and
displays the illustrated weather symbols that indicate weather
forecasts for 12 to 24 hours in the future. The radius of the
forecast is approximately 30 - 50 km (18 - 31 miles).
Important:
1. The accuracy of a weather forecast, when only using
pressure trends, is approximately 70 to 75 percent.
2. The weather forecast symbols may not reflect current
weather condition. The symbols are forecasting the
future.
3. A ‘SUNNY’ forecast covering the nighttime reflects fine
clear weather.
HOW TO RESET THE UNIT
Press RESET to return all settings to the factory values.
NOTE: Pressing RESET will clear all user selected or
programmed settings.
HOW TO WALL MOUNT OR
USE TABLE STAND
MAIN UNIT
Flip the table stand open to place the unit on a steady, flat surface.
Or use the recessed hole on the back to mount it on a wall.
Wall-mount
Table Stand
Arrow
Indicator
Pressure
Trend
R i s i n g
Steady
Falling
S u n n y
C l o u d y
R a i n y
Snow
S l i g h t l y
C l o u d y