Sharper Image LM516 User manual

Sun/Moon
Wireless Weather
Center
with Radio-Controlled
Atomic Clock
LM516 Instructions
Read and save these instructions.

Call 1-800-344-4444 for 24-7 ordering and customer service,
or go to , our complete online store.
Dear Sharper Image Customer,
Thank you for your purchase of a Sharper Image product. We appreciate
your business very much.
Please accept my personal assurance of your complete satisfaction
ith this product’s quality and performance. We offer generous
return privileges and excellent arranties on all our products.
For more than 25 years, The Sharper Image has shared the fun
of discovering innovative products that make life better and more
enjoyable. We’ve been in business a long time because e are an
exciting place to shop and — just as importantly — e strive to
deliver great customer service that exceeds your expectations.
Enjoy your purchase!
Respectfully,
Richard Thalheimer
Founder, Chairman and Chief Executive Officer

Introduction .........................................................................................................4
Quick Start...........................................................................................................5
Setup................................................................................................................6
General Instructions .............................................................................................8
Explanation of LCD ..........................................................................................8
Function Key Layout.........................................................................................9
Program Mode .................................................................................................9
United States Cities Listed by State.................................................................11
Settings...........................................................................................................13
Features and Operations.................................................................................14
Mounting........................................................................................................20
Maintenance and Care ...................................................................................21
Troubleshooting ..............................................................................................22
Specifications..................................................................................................24
Statement of FCC/DHHS Compliance ................................................................25
FCC Label Compliance Statement ......................................................................25
Warranty ............................................................................................................26
Table of Contents

4
The main features of the Wireless Weather Center are as follows:
1. Calculation of sunrise, sunset, moonrise, moonset and moon phase based
on selected city location (database includes 245 cities in North America).
2. Radio-controlled time and date (automatic setting and adjustment).
3. Indoor temperature and humidity.
4. Remote temperature and humidity (433 MHz transmission, up to three
sensors).
5. Air pressure with bar chart history for the last 30 hours.
6. Pressure trend with forecast icon (forecast based on changing air pressure).
7. User-selectable remote temperature alarm.
8. Minimum and maximum indoor and outdoor temperature and humidity.
Inventory of Contents
Box includes:
1. Wireless Weather Center.
2. Remote thermo-hygro (temperature-humidity) transmitter. Includes a mounting
bracket, rain cover, two mounting screws and adhesive tape.
3. Instruction manual and warranty.
Items to purchase separately:
1. Five fresh AA batteries (alkaline).
2. Wall-mounting screw (optional).
3. Additional temperature and humidity sensors (as many as three total).
Introduction

5
1. Insert 2 AA batteries into the remote transmitter(s). Insert 3 AA batteries into
the Weather Center.
2. Wait 6-10 minutes (in ideal reception conditions) for the WWVB time and
remote temperature humidity to be displayed. If the WWVB takes longer to
set, you may manually set the time (see Setup), or you can wait until after the
weather station conducts its programmed search at the ideal reception period
of midnight to 6:00 a.m. The date will also be set at WWVB reception.
3. Mount the units, ensuring that all units are sending and receiving signals. To
measure outdoor temperature and humidity, place the transmitter outdoors.
It will transmit the temperature and humidity from its location.
4. To set preferences (city location, °F/°C, etc.), press the SET key, hour flashes.
5. To select the current hour, use +or -keys.
6. Repeat steps 4 and 5 to set remaining preferences.
For complete instructions, refer to Setup.
WWVB (Radio-Controlled Time)
The WWVB reception will override any time and date set manually based on the
time zone selected. If the time is initially manually set during Daylight Saving
Time, the sun and moon information may be inaccurate until the WWVB signal is
received, as there is no means of manually setting the station to Daylight Saving
Time.
The NIST (National Institute of Standards and Technology — Time and Frequency
Division) WWVB radio station is located in Boulder, Colorado, and transmits the
exact time and date signal continuously throughout the United States at 60 kHz.
The signal can be received up to 2,000 miles away through the internal antenna
in the Weather Station. However, due to the nature of the Earth’s ionosphere,
reception is very limited during daylight hours. The Weather Station will search for
a signal every night when reception is best. A team of atomic physicists is continu-
ally measuring every second to an accuracy of ten billionths of a second per day.
These physicists have created an international standard, measuring a second as
9,192,631,770 vibrations of a cesium-133 atom in a vacuum.
Quick Start

6
Installing Batteries
Batteries will fit tightly. To avoid start-up problems, make sure that the batteries do
not spring free. Be sure to insert batteries into the transmitter(s) first, then the
Weather Center. Initial setup should be done with the transmitter(s) and weather
station in the same room. The transmitter(s) should be permanently mounted only
after the signal reception has been verified.
Remote Transmitter
1. Pull the cylindrical rain cover off the transmitter.
2. Remove the battery cover (located on the back side of the transmitter above
the mounting post and bracket). Press the arrow and slide the battery cover
off.
3. Install 2 AA alkaline batteries, observing the correct polarity.
4. Replace battery cover and place rain cover snugly onto the transmitter.
Weather Center
1. Remove the battery cover (large center panel with writing on it).
2. Install 3 AA alkaline batteries, observing the correct polarity.
3. Do not press any buttons for at least 10 minutes. If a button is pressed before
the Weather Center has received information from the transmitter, no data will
be received from that sensor until reset.
4. Replace battery cover.
Initial Start-Up Sequence
Immediately after the batteries have been installed, the Weather Center will beep
and the LCD will completely illuminate for a brief moment. All information will
then appear in normal mode, with “12:00” as the default time and “1.1” as the
default date (2001 as the year). “DCA” is the default city (Washington, DC, USA),
with the sunrise, sunset, moonrise and moonset times displayed for that city at
that date. The indoor temperature, humidity and barometric air pressure (as 29.91
inHg relative RH) will also be displayed.
There is a satellite icon that appears near the bottom of the LCD to the right of
the “max” remote temperature. This icon informs the user that the Weather
Center is looking for signals from the transmitter(s). Within five minutes the
remote temperature and humidity should be displayed. If not, remove batteries
from all units and repeat battery installation — the remote transmitter(s) first and
the Weather Center second.
Setup

7
WWVB Reception
Once the batteries are installed in the Weather Center, it will automatically search
for the WWVB signal. If it receives a good signal (which is unlikely during daylight
hours in most locations), the WWVB reception indicator (tower icon) will flash.
The weather station requires five full minutes of good reception to successfully
capture the signal and set to the correct hour, minute, second, month, day and
year. If the signal reception is not successful within 10 minutes, the signal search
will be cancelled and will automatically resume every two hours until the signal is
successfully captured.
The signal is sent from Boulder, Colorado, only, much like an AM signal.
Atmospheric interferences such as storms, sunspots and even sunlight will interfere
with the distance the signal can travel. To maximize reception, place the weather
station in a window facing Colorado, at least six feet from any electrical source
(computers, televisions, refrigerators, etc.). Do not move the unit while it is search-
ing for the signal.
The time and date can be manually set. Once the signal is captured, it will over-
ride any manually-set time and date set to the time zone selected. Once the time
and date are set, the weather station will conduct a search every night at midnight
and correct to the accurate time and date (Daylight Saving Time is automatic). If
the signal has been received in the past 24 hours, the reception indicator will be
displayed.
Setup

8
General Instructions
Explanation of LCD
There are many different modes to which Weather Center can be set. The LCD
shown is the normal operating mode. The actual data shown will be different,
based on your local settings and conditions.
WWVB reception indicator
Radio-controlled time
Sunrise time for
selected location
Sunset time for
selected location
City code for city
selected (SFO shown)
Indoor temperature
Air pressure tendency
arrow (increase displayed)
Relative or absolute
air pressure selection
(relative shown)
Barometric air pressure
Pressure change over last
two hours (inHpa)
(+4 Hpa shown)
Remote temperature
Remote temperature
minimum and maximum
OR alarm setting
Alarm on indicator
Radio-controlled date
Moonrise time for
selected location
Current moon phase
Moonset time for
selected location
Indoor humidity
Comfort icon
Forecast icon
Measuring unit for air
pressure, inHg shown
Last 30-hour air
pressure graph
Remote humidity
Remote sensor number
(up to three total)
Remote humidity
minimum and
maximum

9
The image below shows the eight function keys used in the programming and
operation of the Weather Center.
Program Mode
The program mode is laid out in a manner that allows you to program each
function separately, or you can follow the instructions entirely to program the
Weather Center. Complete programming is usually done for the initial setup and
will require you to skip step 1 of each programming section. The programming
mode can be exited at any time by pressing the CH button or waiting for the
16-second time-out.
Setting Time and Date
1. If starting from the normal mode, press and release the SET key.
2. The hour will flash. Use +or -keys to select the current hour (AM or PM).
3. Press SET to advance to the minute. The minute will flash. Use +or -to select
the current minute.
4. Press SET to advance to the 12/24 setting. “12” will flash. Use +or -to select
either 12-hour (AM/PM) or 24-hour (military) time format.
5. Press SET to advance to the year setting. The year will flash. Use +or -to
select the current year.
6. Press SET to advance to the month setting. The month will flash. Use +or -to
select the current month.
7. Press SET to advance to the date setting. The date will flash. Use +or -to
select the current date. Press SET to advance to the location setting.
The WWVB signal will override any manually set time and date information. The
time will be based on the time zone selected.
Function Key Layout

10
Setting City Location
1. If starting from the normal mode, press SET seven times.
2. The country location will flash (USA default). Press +or -to select the country
(USA = United States, CAN = Canada, MEX = Mexico).
3. Press SET to advance to the state setting (USA only) or the city location
(Canada or Mexico). (Skip to step four if Mexico or Canada is selected.) The
state will flash. Use +or -to select state.
4. Press SET to advance to the city setting. The city will flash. Use +or -to select
the city closest to your location (abbreviated by airport code, if applicable).
Press SET to advance to the time zone setting.
The following list of city locations is entered in the database. The choices are
based first on state capitals, then nearby locations based on population and differ-
ence of latitude and longitude. There are cases where your city may be closer to
a city in a nearby state rather than your state.
Program Mode

AK Alaska
ANC Anchorage
FAI Fairbanks
JNU Juneau
OME Nome
AL Alabama
BHM Birmingham
GAD Gadsden
MGM Montgomery
MOB Mobile
AR Arkansas
FSM Fort Smith
LIT Little Rock
TXK Texarkana
AZ Arizona
FLG Flagstaff
PHX Phoenix
TUS Tucson
YUM Yuma
CA California
BFL Bakersfield
BLH Blythe
EKA Eureka
FAT Fresno
FTB Ft. Bragg
LAX Los Angeles
ROD Redding
SAC Sacramento
SAN San Diego
SBD San Bernardino
SFO San Francisco
CO Colorado
DEN Denver
DRO Durango
FNL Ft. Collins
GJT Grand Junction
ITR Burlington
PUB Pueblo
CT Connecticut
HFD Hartford
DC District of
Columbia
DCA Washington
DE Delaware
0N5 Dover
FL Florida
EYW Key West
JAX Jacksonville
MIA Miami
ORL Orlando
PNS Pensacola
TLH Tallahassee
TPA Tampa
GA Georgia
ABY Albany
AGS Augusta
ATL Atlanta
CSG Columbus
MAC Macon
SAV Savannah
HI Hawaii
HNL Honolulu
ITO Hilo
OGC Kahului
WAI Waimea
IA Iowa
ALO Waterloo
DSM Des Moines
DVN Davenport
SUX Sioux City
ID Idaho
BOI Boise
GIB Gibbonsville
PIH Pocatello
SZT Sand Point
IL Illinois
CMI Champaign
ORD Chicago
SPI Springfield
IN Indiana
EVV Evansville
HUF Terre Haute
IND Indianapolis
SBN South Bend
KS Kansas
DDC Dodge City
K32 Wichita
KCK Kansas City
OH1 Wa Keeney
TOP Topeka
KY Kentucky
FFT Frankfort
LEX Lexington
LOU Louisville
LA Louisiana
BTR Baton Rouge
CWF Lake Charles
IER Natchitoches
NEW New Orleans
SHV Shreveport
MA Massachusetts
BOS Boston
MD Maryland
BWI Baltimore
ME Maine
AUG Augusta
BGR Bangor
CAR Caribou
PWM Portland
MI Michigan
AZO Kalamazoo
DET Detroit
FNT Flint
LAN Lansing
PZQ Rogers City
SAW Marquette
TVC Traverse City
MN Minnesota
AEL Albert Lea
BJI Bemidji
DLH Duluth
GPO Grand Portage
INL International Falls
STP St. Paul
MO Missouri
JEF Jefferson City
MO Missouri continued
MKC Kansas City
MPH Memphis
POF Poplar Bluff
SGF Springfield
STL St. Louis
MS Mississippi
GWO Greenwood
HUV Huntsville
JAN Jackson
TUP Tupelo
MT Montana
BIL Billings
FTP Ft. Peck
GFT Great Falls
HLN Helena
SDY Sidney
WTF Whitefish
NC North Carolina
AVL Asheville
CLT Charlotte
FAY Fayetteville
ILM Wilmington
INT Winston-Salem
MCZ Williamston
RDU Raleigh
ND North Dakota
BIS Bismarck
BWB Bowbells
FAR Fargo
GFK Grand Forks
NE Nebraska
GRI Grand Island
LNK Lincoln
OMA Omaha
SNY Sidney
VTN Valentine
NH New Hampshire
CON Concord
NJ New Jersey
EWR Newark
TTN Trenton
11
Code State/City Code State/City Code State/City Code State/City
United States Cities Listed by State

12
NM New Mexico
ABQ Albuquerque
MAG Magdalene
ROW Roswell
RTN Raton
SAF Santa Fe
NV Nevada
AIN Austin
CXP Carson City
ELY Ely
LAS Las Vegas
LWL Wells
RNO Reno
NY New York
ALB Albany
BUF Buffalo
JFK New York City
LKP Lake Placid
SYR Syracuse
OH Ohio
CLE Cleveland
CMH Columbus
ISZ Cincinnati
TOL Toledo
YNG Youngstown
OK Oklahoma
17K Boise City
LAW Lawton
OKC Oklahoma City
TUL Tulsa
OR Oregon
BNO Burns
EUG Eugene
MFR Medford
PDX Portland
SLE Salem
PA Pennsylvania
CXY Harrisburg
PHL Philadelphia
PIT Pittsburgh
SCR Scranton
PR Puerto Rico
SJU San Juan
RI Rhode Island
PVD Providence
SC South Carolina
CHS Charleston
CUB Columbia
GMU Greenville
SD South Dakota
FSD Sioux Falls
PIR Pierre
RAP Rapid City
TN Tennessee
BNA Nashville
CHA Chattanooga
DKX Knoxville
MEM Memphis
TX Texas
ABI Abilene
AMA Amarillo
AUS Austin
BRO Brownsville
DFW Dallas/Ft. Worth
ELP El Paso
HOU Houston
LRD Laredo
ODO Odessa
SAT San Antonio
UT Utah
SAL Saline
SGU St. George
SLC Salt Lake City
TSN Thompson
VA Virginia
DON Vienna
LYH Lynchburg
ORF Norfolk
RIC Richmond
ROA Roanoke
VT Vermont
BTV Burlington
MPR Montpelier
WA Washington
ABE Aberdeen
ALW Walla Walla
KTF Kettle Falls
MVN Mt. Vernon
OLM Olympia
SEA Seattle
SFF Spokane
TON Tonasket
YKM Yakima
WI Wisconsin
AUW Wausau
GRB Green Bay
LSE La Crosse
MSN Madison
MWC Milwaukee
SSQ Spooner
WV West Virginia
CRW Charleston
HLG Wheeling
WY Wyoming
BYG Buffalo
CPR Casper
CYS Cheyenne
LAA Little America
WYE West Yellowstone
Canada City Listing
EDM Edmonton
YEL Yellowknife
CHT Charlotte Town
ALB Calgary
OTT Ottawa
MON Montreal
VAN Vancouver
SUD Sudbury
QUE Quebec
WIN Winnipeg
THU Thunder Bay
REG Regina
FRE Fredericton
TOR Toronto
WHI Whitehorse
HAL Halifax
Mexico City Listings
CHH Chihuahua
MEX Mexico City
HER Hermosillo
DUR Durango
GUA Guadalupe
United States Cities Listed by State
Code State/City Code State/City Code State/City Code City

13
Settings
Setting Time Zone and Daylight Savings
1. If starting from the normal mode, press SET 10 times.
2. The time zone will flash based on the city selected. Press +or -keys to adjust
to the correct time zone.
3. Press SET to advance to the Daylight Saving Time setting. “dst ON” will flash.
Press +or -to select whether or not the Weather Center will automatically
change when Daylight Saving Time changes. Press SET to advance to the units
settings.
Setting Weather Measurement Units (°F/°C, inHg/hPa)
1. If starting from the normal mode, press SET 12 times.
2. Selected temperature units will flash (°F default). Press +key to select °F
(Fahrenheit) or °C (Celsius).
3. Press SET to advance to the barometric air pressure units setting. The selected
air pressure units will flash (inHg default). Press +key to select inHg (inches of
mercury) or hPa (hectopascal or millibars).
4. Press SET to advance to the barometric air pressure calibration setting. The air
pressure reading will flash (29.91 inHg, 1012.8 hPa as default). Press +or -to
adjust to the correct relative air pressure based on local reports. (Note:
Barometric air pressure is usually reported as “relative air pressure.”) This read-
ing is based on the combination of absolute air pressure and altitude. In gener-
al, an increase in altitude will result in a decrease in air pressure. Relative air
pressure will make readings in nearby locations relative to each other to allow
for proper forecasting. The absolute air pressure reading in the Weather Center
cannot be calibrated — only the relative air pressure.)
5. Press SET to advance to the forecast sensitivity setting. The selected forecast
sensitivity setting will flash (0.09 inHg default). Press +to select 0.06, 0.09 or
0.12 inHg (if hPa is selected, the choices will be 2, 3 or 4). A lower setting will
result in a quicker change in the forecast icon. In other words, if the setting is
0.06 inHg, the forecast icon will change if the air pressure changes by at least
0.06 inHg within a six-hour period. This is useful, as certain areas will experi-
ence a change of air pressure but no change in weather.
6. Press SET to advance to the storm warning setting. The selected storm warning
level will flash (0.15 inHg, 5 hPa default). Press +or -to select the storm
warning setting. This can be set to 0.09, 0.12, 0.15, 0.18, 0.21, 0.24 or 0.27
inHg (from 3 to 9 hPa). This setting will determine how much of a drop in air
pressure over six hours will sound the storm warning alarm.

14
Settings
7. Press SET to advance to the storm warning alarm on/off setting. The storm
warning on or off setting will flash (OFF default). Press +or -to select whether
or not the storm warning alarm is activated. Press SET to advance to the LCD
setting.
LCD Contrast
1. If starting from the normal mode, press SET 18 times.
2. The LCD contrast setting will flash (4 is the default). Press +or -to select the
contrast level desired (from 1 to 8).
3. Press SET to advance to the LI setting. The LI setting will flash (ON default).
Press +or -to select ON or OFF. Press SET to exit the programming mode.
(The LI setting does not affect the function of the Weather Center and is pre-
sent only for future use.)
Features and Operations
Sunrise/set and Moonrise/set Calculation
The Weather Center will calculate the sunrise/set moonrise/set each day based on
the location entered through the programming mode.
Calculating Daylight Hours and Minutes
To calculate daylight hours and minutes, press and release the SUN/MOON key.
In place of the sunrise/sunset time will be the number of daylight hours and min-
utes. Press SUN/MOON to view the sunrise/sunset time again.
View Different Location/Time for Sunrise/set and Moonrise/set
If no buttons are pressed in 30 seconds during this selection, the Weather Center
will revert to the normal mode. Alternatively, you may press the CH key to revert
to the normal mode.
1. Press and hold SUN/MOON for at least two seconds. The selected country will
flash.
2. Press +or - to select the desired country. Press SET to advance to the state
selection (or city if Canada or Mexico is selected).
3. The state will flash. Press +or -to select the state.
4. Press SET to advance to the city selection. The city name flashes. Press +or -
to select the city.
5. Press SET to advance to the year setting. The current year flashes. Press +or -
to select the year desired.
6. Press SET to advance to the month setting. The current month flashes. Press +
or -to select the month desired.

15
Features and Operations
7. Press SET to advance to the date setting. The current date flashes. Press +or -
to select the date desired.
8. Press SUN/MOON to calculate the new city location at the date selected. (You
may instead press SET to select a different location, starting at step 2 above.)
Once SUN/MOON is pressed, the sunrise/set and moonrise/set times will flash
dashes while the Weather Center calculates the times — the moon phase is
also calculated. Once the times are displayed, the Weather Center will remain
in this mode for 30 seconds or until CH is pressed. The year, month or date
will also flash. At this time it is possible to start at step 2 to select another date
or location.
9. Once this mode is exited through timeout after 30 seconds or by pressing CH,
the Weather Center will revert to the normal mode with the location and date
set through the programming mode. The Weather Center will default to the
last city selected when this mode is entered again.
Moon Phase
There are 12 moon phases in the Weather Center; the black portion signifies the
portion of the moon visible in the sky. When the moon icon is all black, it is a full
moon. The Weather Center is programmed with all moon phases from the year
2000 until 2099. The moon phase for any date may be found by selecting a dif-
ferent date through the sunrise/set programming section.
Indoor Minimum and Maximum Temperature and Humidity
The Weather Center automatically stores the minimum and maximum indoor
temperature and humidity. The minimum and maximum values are updated auto-
matically when a new minimum or maximum is recorded, or until manually reset.
From the normal display mode, press the IN key once to view the indoor mini-
mum temperature and humidity (“MIN” will be displayed near the indoor temper-
ature and humidity). Press IN again to view the indoor maximum temperature and
humidity. Press IN again to return to the normal mode (timeout of viewing mini-
mum/maximum values will occur if no keys are pressed for fifteen seconds).
New Moon Waxing Crescent First Quarter Waxing Gibbous
Full Moon Waning Gibbous Last Quarter Waning Crescent

16
Features and Operations
To reset the indoor minimum and maximum temperature and humidity, press and
hold IN for at least two seconds.
Outdoor Minimum and Maximum Temperature and Humidity
The Weather Center automatically stores the minimum and maximum outdoor
temperature and humidity. The minimum and maximum values are updated auto-
matically when a new minimum or maximum is recorded or until manually reset.
The outdoor (remote) minimum and maximum temperature values are displayed
below the outdoor temperature display (values are rounded down for minimum
and rounded up for maximum). The temperature alarm mode shares the same
display. When the alarm values are displayed, “ALARM” will be displayed above
the remote temperature. To switch back and forth between views, press the
OUT key.
The outdoor (remote) minimum and maximum humidity values are displayed
below the outdoor humidity display. To reset the outdoor minimum and maxi-
mum temperatures, press and hold CH for at least one second.
Multiple Remote Temperature Sensors
The Weather Center can receive as many as three remote temperature and
humidity sensors.
New remote sensors will need to be added during the initial setup. Insert batteries
into all remotes first, then into Weather Center. A number 1, 2 or 3 will be
assigned to each remote upon setup. To view the different remotes, press CH
briefly. Each remote will have its own minimum and maximum values stored, as
well as its own alarm settings for temperature. Resetting the outdoor minimum
and maximum values will reset all remote transmitters’ recordings.
Remote Temperature Alarm
Remote temperature alarm is triggered when temperatures rise above or drop
below temperatures programmed by you.
1. From the normal mode, press the OUT key to toggle between the temperature
alarm and minimum/maximum values. “ALARM” will be displayed above the
remote temperature display to show alarm is activated.
2. Press and hold OUT for two seconds. The low temperature will flash (32°F
default). Press +or -to adjust the temperature from -22°F to +157°F (“- -” if
outside this range). Any value attained below this value will sound the alarm.
3. Press SET to advance to the high temperature alarm. The high temperature set-
ting will flash (86°F default). Press +or -to adjust the temperature from -22°F
to +157°F (“- -” if outside this range). Any value attained above this value will
sound the alarm. Press SET key to return to the normal display mode (or time-
out after fifteen seconds).

17
To cancel the temperature alarm when it sounds, press any key to mute it. The
temperature will flash as long as the value is above the set value. The alarm will
reactivate automatically once the value has fallen below the set value or if a new
value is entered.
Comfort Indicator for Indoor Temperature and Humidity
The comfort level indicator appears in between the indoor temperature and
humidity. The indicator will display a “happy face” when the temperature is
between 68°F and 79°F (20°C and 25.9°C) and the humidity is between 45% and
64%. A “sad face” will be displayed when the temperature and humidity are out-
side the mentioned ranges. If the humidity is below 45% the word “DRY” will
appear to the right of the “sad face” icon. If the humidity is above 65% the word
“WET” will appear to the right of the “sad face” icon.
Weather Forecast
The weather forecasting feature is estimated to be 75% accurate and is based
solely upon the change of air pressure over time. The Weather Center averages
past air-pressure readings to provide an accurate forecast. All weather forecasts for
12-24 hours after the unit has been set up, reset or moved from one altitude to
another (i.e. from one floor of a building to another floor) should be disregarded.
This feature will be less accurate in areas where the weather is not affected by the
change of air pressure.
Weather Icons
There are three possible weather icons displayed at various times in the center of
the Weather Center.
Sunny – Indicates that the weather is expected to improve (not that the weather
will be sunny).
Sun with Clouds – Indicates that the weather is expected to be fair (not that the
weather will be sunny with clouds).
Clouds with Rain – Indicates that the weather is expected to get worse (not that
the weather will be rainy).
The weather icons change when the unit detects a change in air pressure. The
icons change in order, from “sunny” to “sun with clouds” to “clouds with rain” or
the reverse. It will not change from “sunny” directly to “clouds with rain,”
although it is possible for the change to occur quickly. If the symbols do not
change, the weather has not changed (or the change has been slow and gradual).
Features and Operations

18
Adjusting Forecast Sensitivity
The sensitivity of the change in forecast icon is set by the user. Following the pro-
gramming mode, press SET 15 times until two arrows and the sensitivity value
flash. Press +or -to adjust the sensitivity value between 0.06 inHg to 0.12 inHg
(.09 inHg default). The greater the value, the lower the sensivity (it will require a
greater change in air pressure to change the forecast icon).
Weather Tendency Arrows
Along with the forecast icon there are two pressure tendency arrows. One points
up (on the left side of the LCD) and one points down (on the right side of the
LCD). These arrows reflect current changes in the air pressure.
An arrow pointing up indicates that the air pressure is increasing and the weather
is expected to improve or remain good. An arrow pointing down indicates that
the air pressure is decreasing and the weather is expected to become worse or
remain poor. No arrow means the pressure is stable.
Storm Warning Alarm
A storm can be expected if there is a drop of 4 hPa or more in less than 6 hours.
The “clouds with rain” icon is displayed and the tendency arrow that points down
will flash, indicating the storm warning feature has been activated. The flashing
stops when the air pressure stabilizes or begins to rise.
An alarm can be set to warn of a drop in air pressure:
1. Follow the programming mode to set the alarm function. Press SET 15 times
until the down arrow flashes along with a value. Press +or -to adjust the
storm warning level from 0.09 inHg to 0.27 inHg (0.15 inHg default).
2. Press SET to advance to the storm warning alarm on/off selection. “AOFF” or
“AON” will flash. Press +or -to turn the alarm off or on. Press CH to end.
When the air pressure drops by the level set, an alarm will sound (if the alarm is
activated). To cancel the alarm when it sounds, press any key.
Air Pressure
The bar below the air pressure history chart displays the air pressure change over
the past two hours (values based on hPa change; 1 hPa equals 0.03 inHg).
Features and Operations
Pressure Trend

19
Barometric Air Pressure Reading
The actual barometric air pressure is displayed directly under the weather forecast
icon. The relative air pressure is calibrated by the user through the programming
mode.
1. Press SET 13 times to set the measuring unit of air pressure (inHg or hPa).
Press +or -to select either inHg (default) or hPa.
2. Press SET to advance to the relative air pressure calibration. The air pressure
value will flash. Press +or -to set the relative air pressure to the local value
(taken from the local news). Press CH to end.
To toggle between absolute and relative air pressure, press the -key.
Air Pressure History Bar Chart
The bar graph shows the recorded air pressure in hPa (Hekto Pascal) over the past
30 hours. The horizontal axis shows the hours at increments of 30 hours, 24
hours, 18 hours, 12 hours, 6 hours, 3 hours, 1 hour and 0 hours (current). The
vertical axis is set by hPa: the “0” on this axis represents the current hPa and + or
- 1, 3, 5 or 7 shows (in hPa) how high or low the past air pressure was compared
to the current one.
“0” on the vertical axis indicates the current air pressure value. “0” on the hori-
zontal axis indicates the current hour, which is also the current air pressure. Each
bar on the graph represents a value of 0.03 hPa. Each bar has a corresponding
value on the vertical axis.
Air pressure trends can be determined by looking at the bar graph. If the bars are
rising (higher on the right than the left), the air pressure trend is rising and the
weather should improve. If the bars are dropping (lower on the right than the left),
the air pressure trend is falling and the weather should worsen.
The bar chart will constantly scroll to avoid burnout of the LCD. This feature can-
not be turned off.
Features and Operations

20
Before permanently mounting, ensure that the Weather Center is able to receive
signals from the transmitters and WWVB signal at the desired location. To achieve
a true temperature reading, avoid mounting remote transmitters in direct sunlight.
We recommend that you mount the transmitter on a north-facing wall or under
an eave. The sending range of the transmitter is 80 feet (25 meters) — obstacles
such as walls, concrete and large metal objects can reduce the range. Place all
units in the desired locations and wait approximately 15 minutes before perma-
nently mounting to ensure there is proper reception. If the Weather Center loses
the signal from the transmitter, it will display the last temperature reading for 15
minutes. After 15 minutes of not receiving any signals, the remote temperature
will display “- -.-.”
Mounting the Remote Transmitter
The remote transmitter can be mounted with screws or adhesive tape.
To mount with screws:
1. Remove the mounting bracket/receptor from the packaging.
2. Place the mounting bracket over the desired mounting surface. Mark the
mounting surface with a pencil through the two screw holes of the bracket.
3. Start the screw holes where marked using the provided screws. Remove screws
from the mounting surface.
4. Align the mounting bracket with the preliminary screw holes.
5. Screw mounting bracket onto the mounting surface. The screws should be
flush with the bracket.
6. Fit the mounting post (on the back of the transmitter) into the receptor of the
mounting bracket.
Mounting