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La Crosse Technology WS-7091UD Instruction Manual page 5

Wireless weather station

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Note:
Although the minimum and maximum temperature have been reset manually during the day, the Weather station will still be programmed to reset all minimum and maximum
temperatures once a day.
Checking for 433MHz reception
The Weather Station will automatically start scanning for the 433MHz signal after the batteries are inserted. If the outdoor temperature is not displayed after about 30 seconds,
then check the following list before resetting the units (see Resetting below):
1.
The distance of the receiver or transmitter should be at least 1.5 to 2 meters away from any interfering sources such as computer monitors or TV sets.
2.
Avoid placing the receiver onto or in the immediate proximity of metal window frames.
3.
Using other electrical products such as headphones or speakers operating on the same signal frequency (433MHz) may prevent correct signal transmission and
reception.
4.
Neighbours using electrical devices operating on the 433MHz signal frequency can also cause interference.
Note:
When the 433MHz signal is received correctly, do not re-open the battery cover of either the transmitter or Temperature station, as the batteries may spring free from the
contacts and force a false reset. Should this happen accidentally then reset all units (see Resetting below) otherwise transmission problems may occur.
The transmission range is around 25 m from the transmitter to the Temperature station (in open space). However, this depends on the surrounding environment and
interference levels. If no reception is possible despite the observation of these factors, all system units have to be reset (see Resetting below).
The transmitter's transmitting range may be affected by exposure to extreme cold condition (-25°C) for long periods of time due to the nature of Alkaline batteries. Should this
happen, the 433MHz signal may be weakenend and therefore result in a shorter transmitting distances caused by temperature level.
Resetting:
1.
Remove batteries from both the outdoor transmitter and the Temperature station.
2.
Wait at least 30 seconds and then repeat the procedures specified in Setting up (above).
Note:
Always wait at least 30 seconds after removing the batteries before reinserting, otherwise start up and transmission problems may occur. Also, remember when insertting, that
both units have to reset and to always reinsert the batteries to the transmitter first.
Positioning the temperature transmitter:
TheTemperature Transmitter is supplied with a holder that may be attached to a wall with the three screws supplied. To attach to the wall, please follow the steps below:
1.
Mark the wall using a pen through the holes in the holder to obtain the exact drilling position.
2.
Drill holes in the wall at the points marked.
3.
Screw holder onto wall.
There is also double sided tape included with the wall mount. This can be used instead of drilling. Please mount this on a smooth surface instead of
a brick one. The surface can, however, affect the transmission range, for example: if the unit is attached to a piece of metal, it may then either
reduce or increase the transmitting range. For this reason, we recommend not placing the unit on any metal surfaces or in any position where a
large metal surface is in the immediate proximity (garage doors, double glazing etc.). Before securing in place, please ensure that the Temperature Station can receive the
signal from the Temperature Transmitter at the positions that you wish to situate them. The Temperature Transmitter clicks in or out of the holder easily. When inserting or
removing the Temperature Transmitter from the wall holder please hold both units securely.
Positioning the Weather Station:
For wall mounting, please check that the outdoor temperature can be received outdoors from the desired locations. To wall mount:
1.
Fix a screw (not supplied) into the desired wall, leaving the head extended out by about 5mm.
2.
Using the Weather Station's hanging hole, carefully hang it onto the screw. Remember to ensure that it locks into place before releasing.
Important notes:
Avoid placing the units where they can be exposed to sudden changes in temperatures; i.e. direct sunlight, extreme cold and wet/moist conditions. This will help avoid
any inaccurate readings and any possible damage to the unit.
Should the unit be exposed to extreme and sudden temperature changes, it will lead to rapid changes in its forecast reading and thereby reduce its accuracy.
Should the unit be moved to another location that is significantly higher or lower than its standing point (for example from the ground floor to the first floor of a house),
then either reset the units or discard the readings weather forecasts for the next 12-24 hours. By doing so, this will allow allow sufficient time for the unit to operate at a
constant altitude and thus enabling a more accurate forecest.

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Ws-7091ug