La Crosse Technology WS-8158U-IT Positioning the RADIO-CONTROLLED Clock, Care and Maintenance

Note: When the 915 MHz signal is received correctly, do not re-open the battery cover of either the outdoor temperature transmitter or radio-controlled clock, as the batteries may spring free from the contacts and force a false reset. Should this happen accidentally then reset all units (see Setting-upabove) otherwise transmission problems may occur.

The maximum transmission range is 330 feet (100 meters) from the outdoor temperature transmitter to the radio-controlled clock (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 Setting-up).

Note: In case the radio-controlled clock is not able to detect the WWVB-signal (disturbances, transmitting distance, etc.), the time can be manually set (please refer to notes on Manual time setting).

POSITIONING

Before permanently mounting, ensure that the radio-controlled clock is able to receive WWVB signals from the desired location. Also, extreme and sudden changes in temperature will decrease the accuracy of the radio-controlled clock, and changes in elevation will result with inaccurate temperatures readings for the next 12 to 24 hours. These changes will require a 12 to 24 hour wait before obtaining reliable data.

To achieve a true temperature reading, avoid mounting where direct sunlight can reach the outdoor temperature transmitter. It is recommended to mount the outdoor temperature transmitter on a North-facing wall or in any well shaded area. The maximum transmitting range is 330 feet (100 meters) obstacles such as walls, concrete, and large metal objects can reduce the range.

Place both units in their desired location, and wait approximately 10 minutes before permanently mounting to ensure that there is proper reception. The outdoor temperature transmitter is not waterproof and should not be placed anywhere it will become submerged in water or be directly in the rain.

POSITIONING THE RADIO-CONTROLLED CLOCK:

There are two possible ways to mount the radio-controlled clock:

∙use of the foldout table stands

∙wall mounting

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	2)	Wait overnight for signal.
	3)	Be sure the radio-controlled clock is at least 6 feet (2 meters) from any
		electrical devices, i.e. TV sets, computers, or other radio controlled clocks.
	4)	Remove batteries for five minutes, reinsert and leave the unit alone
		overnight without pressing any keys.
Problem:	Hour is incorrect (minute and date are correct).
Solution:	1)	Be sure the correct time zone and daylight saving time is selected.
Problem:	"OF“ appears in the indoor temperature section of the LCD
Solution:	1)	Move the radio-controlled clock to an area with warmer or cooler
		surrounding temperature. Current surrounding temperatures are outside
		measuring range.
	2)	Replace Batteries.
Problem:	"--.-" appears in the outdoor temperature section of the LCD.
Solution:	1)	Remove the batteries of both units for ten minutes, Press any button 20
		times with battery out then reinsert them again. Make sure the batteries are
		new and fresh.
	2)	Move the radio-controlled clock closer to the transmitter or place the
		transmitter closer to the radio-controlled clock. Make sure the clock is at a
		receivable range from the transmitter.
	3)	Move the units to another location. Interferences from other electrical
		devices operating on the same signal frequency (915MHz) may prevent
		correct signal transmission and reception.
Problem:	"OF“ appears in the outdoor temperature section of the LCD.
Solution:	1)	Wait until the current surrounding temperature cools down or increases.
		Current temperature is outside of the measuring range of the transmitter.
		The outdoor temperature will be displayed again once the current
		surrounding temperature is within the range of the transmitter.
	2)	Replace Batteries

CARE AND MAINTENANCE:

∙Avoid placing the units in areas prone to vibration and shock as these may cause damage.

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FOLDOUT TABLE STAND

The foldout table stands legs are located on the backside. Unfold the stands out, below the battery compartment. Once the foldout table stands are extended, place the radio-controlled clock in an appropriate location.

WALL MOUNTING

1)Using a straightedge, horizontally space at 3.93“ (100 mm) three screw positions on a wall.

2) Install three mounting screws (not included) into a wall within transmission range—leaving approximately 3/16 of an inch (5mm) extended from the wall.

3)Place the radio-controlled clock onto the screws, using the hanging holes on

the backside. Gently pull the radio-controlled clock down to lock the screws

into place.

Note: Always ensure that the radio-controlled clock locks onto the screws before releasing.

POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER

The outdoor temperature transmitter can be mounted with the use of screws:

MOUNTING WITH SCREWS

1) Remove the mounting bracket from the outdoor temperature transmitter.

2) Place the mounting bracket over the desired location. Through the two screw holes of the bracket, mark the mounting surface with a pencil.

3) Where marked, start the screw holes into mounting surface.

4) Screw mounting bracket onto the mounting surface. Ensure that the screws are flush with the bracket.

TROUBLESHOOTING:

Problem:	The LCD is faint.
Solution:	1)	Replace the batteries.
Problem:	No reception of WWVB signal
Solution:	1)	It may help reception to face the front of the radio-controlled clock in the
		general direction of Ft. Collins, Colorado.
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∙Avoid areas where the units can be exposed to sudden changes in temperature, i.e. direct sunlight, extreme cold and wet/moist conditions as these will lead to rapid changes which reduce the accuracy of readings.

∙When cleaning the LCD and casing, use a soft damp cloth only. Do not use solvents or scouring agents.

∙Do not submerge the units into water.

∙Immediately remove all low powered batteries to avoid leakage and damage. Replace only with new batteries of the recommended size.

∙Do not make any repairs to the units. Please return it to the original point of purchase. Opening and tampering with the units may invalidate the warranty.

SPECIFICATIONS:

Temperature measuring range

Indoor	: 14.0°F to 99.5°F with 0.5°F resolution
		(-9.5°C to +38.0°C with 0.5°C resolution)
		(“OF” displayed if outside this range)
Outdoor	: -39.0°F to 140.0°F with 0.5°F resolution
		(-39.5°C to 60.0°C with 0.5°C resolution)
		(“OF” displayed if outside this range)
Temperature checking interval
Indoor	:	Every 20 seconds
Outdoor	:	Every 4 seconds

Transmission distance

Maximum 330 feet (100 meters) in open field, depending upon surrounding structures, mounting location and possible interfering sources.

Power source (Alkaline batteries recommended)

Radio-controlled clock	: 2 x AA, 1.5V batteries
Transmitter	: 2 x AA, 1.5V batteries
Battery life	: about 24 months
Dimensions (H x L x W)
Radio-controlled clock	: 8.03“ x 12.20“ x 1.18“ / 204 x 310 x 30mm
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