La Crosse Technology Professional Remote Weather Station - Manual (Page 9)

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Note:
When batteries require replacement for the base station, the low
battery indicator will light up on the LCD.
Please participate in the preservation of the environment
by properly disposing of all used-up batteries and
accumulators at designated disposal points. Never
dispose of batteries in a fire as this may cause explosion,
risk of fire or leakage of dangerous chemicals and fumes
19.
Interferences and problems with operation
Problem & cause Remedy
Distance between
transmitters and
receiver too long. Reduce distance between transmitters
and receiver to receive signal
High shielding
materials between the
units (thick walls, steel,
concrete, isolating
aluminum foil and etc.) Find a different location for sensors
and/or receiver. See also Item
‘Transmission Range’ below.
Interference from other
sources (e.g. wireless
radio, headset,
speaker, etc. operating
on the same frequency) Find a different location for the sensors
and/or base station. Neighbors using
electrical devices operating on the
433MHz signal frequency can also
cause interference with reception
No Reception after
adding extension
cables Find a new location for the sensors
and/or base station. Recommend not
adding more than 32ft extension
cables between units to the existing
cable lengths, as this will increase the
chance of data reception problems.
Reception then no
reception - loss of
transmission signal
from the sensor to the
base station Press and hold the PLUS (+) key for 2
seconds to synchronize the base
station to the sensors for weather data
reception. If still no signal, then
change the sensor batteries and
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synchronize the units again.
Poor contrast LCD or
no reception or low
batteries in sensors or
receiver. Check the LCD contrast setting or
change batteries (check low battery
indicator on the LCD)
Quite frequently interferences are only of a temporary nature and may
be easily overcome. If there are wireless headsets, remote
babysitters or other devices working on 433MHz in your house or in
the vicinity, their switch-on time is mostly limited. Furthermore most of
these devices allow the change to an interference-free frequency.
Such measures will effectively overcome interferences.
20.
Transmission Range
The transmission distance from the thermo-hygro sensor to the base
station in open space under optimum conditions is 330ft. Although
the signal transmission may travel though solid surfaces or objects,
the following points should be avoided if possible:
- High frequency interferences of any kind.
- High densities of trees.
- Broadband interferences in municipal areas can reach levels
reducing the signal/noise ratio over the entire frequency band,
thus also reducing the transmission distance.
- Devices working close by (example a neighbor’s house) may
also influence reception.
- Poorly shielded PCs can cause interferences that will reduce or
in some cases stop reception
- The transmitter and receiver should not be mounted on metal
surfaces as this will reduce transmission range.
21. Cleaning and Maintenance
- Clean the housing and screen of the base station only with a
soft damp cloth. Do not use abrasives or solvents.
- Ensure that the rain sensor does not collect leaves or other dirt
by checking the funnel for blockages every now and then. Also
clean the seesaw of the sensor with a damp cloth and check by
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lightly tapping with your finger that it can move freely from side
to side.
- Do not clean the funnel with the bottom half of the rain sensor
attached nor the bottom part itself under running water. This
may bear the danger of water entering the unit’s inner parts and
cause damages.
- Do not immerse the base station in water.
- Should there be damage to this product, please do not attempt
to make any repairs. Please take this unit to a qualified
technician. Opening or improper handling of the units will
invalidate any guarantee.
22. Specifications
Outdoor data
Transmission Distance in Open Field : 330ft max. (100m. max.)
Temperature Range
: -21.8°F to +157.8°F (show
OFL” if outside range)
Resolution : 0.2°F
Measuring Range Rel. Humidity : 1% to 99%
Rain Volume Display : 0 to 39.37 inches (1h and
24h rainfall)
0 to 98.42 inches (Total
rainfall)
Resolution : 0.01 in.
Wind Speed : 0 to 111.8 mph
Resolution : 0.1 mph
Wind Direction : Graphic Resolution 22.5
Degrees, Numerical
Resolution, Letter format
Using 433MHz wireless data transmission:
Measuring interval
thermo-hygro sensor
: 32 sec (if wind speed>22.36
mph) or 128sec (if wind
speed< 22.36mph) 10
minutes (if the base station
fails to receive any data after
5 attempts in a row, all
outdoor data readings will
display “---“, except for the
rain value)
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With cable connection for data transmission:
Measuring interval
thermo-hygro sensor
: 8 seconds
Indoor data
Pressure/ temperature
: 4 times per minute
Indoor Temperature Range : 14.2°F to + 139.8°F (shows
“OFL” if outside range)
Resolution : 0.2°F
Measuring Range Rel. Humidity : 1% to 99%
Resolution : 1%
Measuring Range Air Pressure : 8.86 inHg to 32.45 inHg
(Standard air pressure at an
altitude of 30,000 ft
is around 8.85 inHg)
Resolution . 0.01 inHg
Relative humidity checking interval : 3 times per minute
Alarm duration
: 2 minutes (approx.)
Power consumption
Base Station
Batteries
: 3 x AA, IEC LR6, 1.5V
(Alkaline recommended)
or AC power : INPUT 120V AC 60HZ (use
the provided AC/DC adapter
only)
Thermo-hygro sensor : 2 x AA, IEC LR6, 1.5V (or
can draw power from the
adapter if used)
Battery life using 433MHz: : approximately 12 months
(alkaline batteries recom-
mended)
Battery life using cable connection : approximately 6 months
(alkaline batteries recom-
mended)
Dimensions (L x W x H):
Base Station
: 4.76 x 1.03 x 7.50 inches
Thermo-hygro sensor : 2.8 x 2.9 x 5.4 inches
Rain sensor : 5.5 x 2.8 x 5.4 inches