La Crosse Technology WS-2811U-IT Technisches Datenblatt

Quick Set Up Manual - WS-2811U-IT Professional Weather Station

Download product documentation and the free PC software at: www.lacrossetechnology.com/support

Carefully open the package and check that the following contents are complete:

Wind Sensor Rain Sensor Thermo-Hygro Sensor Wireless Display USB Transceive

Mast holder

Right angle adaptor

1 x U-bolts

2 Washers + 2 Nuts

Plastic Reset Rod

Base sensor,

funnel top cover

and battery cover

(pre-assembled)

Rain protection cover

Wall mount adapter

Mounting screws

Plastic anchors for screws

Detachable

stand

USB wireless

interface for

Wind Sensor also

Protected under U.S.

Patent: 6,761,065

All items, including Wind Sensor, are Protected under U.S. Patents:

5,978,738; 6,076,044; & 6,597,990

Setting up:

IMPORTANT: Make sure to observe the correct polarity when inserting batteries. The "+" markings on the batteries must line

up with the diagrams inside the battery compartments. Inserting the batteries incorrectly may result in permanent

damage to the units. During the setup process, place the wireless display and the outdoor sensors on a surface with 3-10

feet between the sensors and the display. Only use Alkaline Batteries, rechargeable batteries may not work.

1. It is important to allow sufficient light to reach the solar panel while activating the wind

sensor. Make sure the lights are on in the setup room and the solar panel is facing a 60W

light bulb or brighter - do not cover with hands or other objects. Remove the black protective

foil on the solar panel and use the provided plastic reset rod to gently press the reset button

once in the hole on the bottom of the sensor. (See diagram to the right.)

2. Insert two "AA" size batteries into the rain sensor with the correct polarity.

3. Insert two "C" size batteries into the thermo-hygro sensor with the correct polarity.

4. Insert two "C" size batteries into the wireless display with the correct polarity.

NOTE: Every time the wireless display receives data from the sensors, the wireless icons

will blink once and then return to solid if the last transmission was successful. A wind speed

or rainfall amount that reads "0" does not mean reception failure, it means that there was no

wind or rain at the time of the last measurement. The thermo-hygro sensor syncs with the wind and rain sensors and

sends all outdoor sensor data to the display. The thermo-hygro sensor tries for 4 minutes to sync to the wind sensor

and then 4 minutes for the rain sensor. If not successful within 4 minutes, the thermo-hygro sensor will stop looking

for the other sensors.

5. Setup troubleshooting: If the sensor data fails to display for any of the outdoor sensors within 10 minutes, (“- - -“ is

displayed), remove the batteries from all units for 1 minute and start the Setup procedure again at Step 1.

Mounting the sensors and placement of the wireless display:

IMPORTANT: Ensure that all of the sensor data can be received at the intended mounting locations before you drill mounting

holes. The wind and rain sensors have a wireless range of 164 feet & the thermo-hygro sensor has a wireless range of 200

feet. Keep in mind that the wireless ranges equate to an open air scenario with no obstructions. Each obstruction (roof, walls,

floors, ceilings, etc.) will reduce the range.

Outdoor Tem

erature

Outdoor Humidit

Rainfall Amount

Indoor

Indoor Humidit

Wind Direction

Wind S

eed

Forecast Icon and

Weather Tendenc

Wind

Time and Date

Pressure Histor

Gra

Barometric

Press Reset Button on

Bottom of Wind Sensor

(Solar Panel Must Face

Light)

Rain

Sensor

Thermo-hygro

Sensor

Wireless Display

USB Transceiver

Wind Sensor

Solar Panel Faces

True South

Wireless Data Diagram

164 foot

Range

164 foot

Range

* Wind and Rain Sensors should be located

on the same side of the house as the

Thermo-hygro Sensor to ensure signal strength.

200 foot

Range

(Open Air)

80 foot

Range

The thermo-hygro sensor measures outdoor temperature & humidity and collects the data from the wind and the rain sensors

and sends all outdoor weather data to the wireless display, so the thermo-hygro sensor must be within the 200 foot wireless

range of the wireless display. This allows the wind and rain sensors to be placed relative to the thermo-hygro sensor rather

than the wireless display. See Wireless Data Diagram above.

The wind and rain sensors must be mounted within the 164 foot wireless range of the thermo-hygro sensor and on the

same side of the house.

The wireless display must be within the 80 foot wireless range of the USB transceiver to send weather data to the PC.

If the sensor wireless icons drop from the display as you move them into their intended locations, the sensors may be too

far from the wireless display. Try moving the wireless display or the sensors closer and wait a few minutes to see if the

wireless icons display again. If the wireless icons are still not displayed after re-positioning the sensors or the wireless

display, press and hold the UP ARROW (▲) key for 2 seconds to re-synchronize the wireless display with the sensors.

Wind sensor

The wind sensor must be installed with the front of the sensor (the solar panel) facing true South, or the reported wind

direction will not be accurate. Mount within the 164 foot wireless range of the thermo-hygro sensor and on the same side of

the house. The roof may or may not be an ideal mounting location. Secure the main unit to the shaft of the mast holder. Use

the right-angle adaptor if the wind sensor will be mounted on a horizontal mast or surface.

Fasten the wind sensor to a suitable mast using the two U-bolts, washers and nuts included. Note: Mount the wind sensor

onto a mast so the wind can reach the sensor unobstructed from all directions for an accurate reading. The ideal mast is

between 0.62" and 1.3” in diameter. The wind sensor DOES NOT have replaceable batteries, it consumes solar power and

charges the internal battery pack automatically.

Rain sensor

The rain sensor should be mounted on a level surface in an open area within the 164 foot wireless range of the thermo-hygro

sensor and on the same side of the house. Mount the rain sensor at least 1 foot off the ground level for optimum wireless

transmission. The rain sensor should be accessible to allow for period cleaning of debris or insects.

Thermo-Hygro Sensor

The thermo-hygro sensor is "weather resistant", but not "water proof". To ensure an extended life of your sensor, mount it in a

semi-covered place out of the elements. An ideal location for the thermo-hygro sensor is under the eaves on the North side of

the house to avoid the effects of sunlight. Mount the sensor 18" down from the eaves to ensure optimum performance. This

way the weather data collected by the sensor will not be affected by the temperature of the air coming out of the attic.

To wall mount the thermo-hygro sensor, fix the wall holder onto the desired wall using the included screws, plug the sensor

firmly into the wall holder and replace the rain cover if it is not already in place. Note: After mounting the units, if the weather

data is not received, press and hold the UP ARROW (▲) key for 2 seconds to synchronize the wireless display to the sensors.

Heavy Weather PC Software

Use your PC to store and graph the latest weather data collected by the weather station. Download the Heavy Weather PC

software from www.lacrossetechnology.com/support. See the download page for installation instructions and computer

requirements.

EJMA2811L220

Printed in China

The complete instruction manual is available at:

www.lacrossetechnology.com/support

Le manuel d'instruction complet est disponible sur:

www.lacrossetechnology.com/support

El manual de instrucciones completo está disponible en:

www.lacrossetechnology.com/support

FCC DISCLAIMER

This device complies with part 15 of the FCC rules.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference.

(2) This device must accept any interference received,

including interference that may cause undesired operation.

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