Kalawen EM3388-WWVB User manual

EM3388-WWVB Manual

EM3388-WWVB Manual
Frequently Asked Questions：
1 : Why does the screen turn off after powering on the weather station? And sometimes during the night? What is
RCC (WWVB)?
A: After powering on the weather station, it will soon activate RCC function (Radio-controlled automatic
time-calibration, abbr. RCC or WWVB). During the process, the display screen will automatically turn off to reduce
other interference. After the process(in 7 minutes), the screen will light up again.
Every night, at 1:00am, 2:00am, 3:00am, it will start RCC. If the reception of RCC signal fails due to signal interference
or weak signal, it will start again at 4:00am. If fails again, it will start again at 5:00am. After 5:00am, whether successful
or not, it will not automatically start RCC.
During the RCC process (in 7 minutes), if you want to light up the screen, please press “SNOOZE”, at the same time
RCC will continue. If you want to stop RCC, please press “▲”, RCC will stop and the screen will light up.
If you want to activate RCC manually, please hold “▲” for 2-3 seconds, the station will start RCC.
2 : Why does the weather station not display the outdoor temperature? Why is there a horizontal line on the screen?
Why does the temperature and humidity data on the screen show inconsistencies?
A: In order to ensure that the device can receive signals quickly, please follow the steps below:
Power on the weather station first.
Then power on the sensor.
Confirm that the clock and the sensor are in the same channel.
After establishing a connection, the sensor transmits data every 60 seconds to update the temperature and humidity
data.
If the connection failed, please hold “▼” for 2-3 seconds to clean up the data and restart to receive the data. And press
the button “TX” on the back of the sensor to transmit a signal. The connection will be re-established.
If there is a horizontal line on the screen (not displaying the temperature and the humidity), please ensure your station
and the sensor are in the same channel. And if you have only 1 sensor, please deactivate the automatic channel
switching by pressing ”▼”, the "loop" mark will disappear in the channel zone on the screen.
Please note that the transmitting distance is within about 60m/196feet. The displayed temperature and humidity will be
more accurate after 3 hours. If there is some error, please wait about 3 hours. Indoor and outdoor temperature error
within ±1℃, indoor and outdoor humidity error within ±5%.
3 : Does it run on batteries during a power outage so that the alarm clock will still wake you up?
A：Yes, the alarm clock will wake you up also when powered by batteries. The weather station can be used with power
adapter(in the package) or batteries(not included in the package). If powered by adapter, the screen will be brighter
and stay always bright. If powered by batteries, the screen will be darker and it will be off after about 15 seconds to
save battery power.

EM3388-WWVB Manual
Features:
WWVB Radio control time function
Perpetual Calendar Up to Year 2099
Time in optional 12/24 hour format.
Daily Alarm Function
Automatic snooze function
The moon phase display
Barometric pressure:
— Barometric pressure measurement ranges: 17.72 inHg～32.50 inHg & 600 hPa/mb～1100 hPa/mb
— Pressure alternatively in inHg or hPa/mb
Humidity: Indoor & Remote measurable range: 20%RH ~ 95%RH
Temperature:
— Indoor temperature measurement ranges: 32°F (0°C) ~ 122°F (50°C)
—Remote temperature measurement ranges: -4°F (-20°C) ~ 140°F (60°C)
— Temperature alternatively in °F or °C.
—Remote thermometer and frost alert
Minimum/maximum display for air humidity and temperature
Wireless Remote Sensor:
— Wall Mount or Table Stand
— One Wireless Thermo Sensor Included
— 433.92MHz RF transmitting frequency
— 200 feet transmission range in an open area
The weather forecasting function
Power Supply:
Weather Station:
Battery: 2 x LR6 AAand mains adapter: DC5V 1.2A
Wireless Remote Sensor:
Battery:2 x LR6 AA
Weather Station Appearance

EM3388-WWVB Manual
Part A-Positive LCD
A1: Remote Temperature
A2: Remote Humidity
A3: Remote Temperature Alert
A4: Moon Phase
A5: Calendar or Alarm time
A6: Time
A7: Barometric pressure
A8: Histogram shows the trend of 24 hours of atmospheric pressure
A9: Indoor Humidity
A10: Indoor comfort
A11: Indoor Temperature
A12: Weather Forecasting
Part B –Side buttons and power
B1: “ ” touch field
B2: “ ” button
B3: “ ” button
B4: “▲” button
B5: “▼” button
B6: “ ” button
B7: “ ” button
B8: “MEM” button
B9: Alarm on/off shift switch
B10: Power supply socket
B11: USB charger output socket
B12: Battery compartment

EM3388-WWVB Manual
Part C –Wireless Outdoor Sensor:
C1: LCD display – Temperature
C2: LCD display – Humidity
C3: Transmit signal LED
C4: “°C/°F” button
C5: “TX” button
C6: Channel selector switch
C7: Battery compartment

EM3388-WWVB Manual
Initial operation:
Open Weather Station battery compartment cover
Insert 2 x AA batteries observing polarity [ “+” and “ –“ marks]
When you insert the batteries, all the icon on the LCD display will briefly light up for 3 seconds, and you will hear a
beep tone, and detect indoor temperature & humidity.
The Weather Station will now start to make a connection to the Remote remote sensor. This operation takes about 3
minutes and is displayed by a flashing reception RF antenna symbol in the “REMOTE SENSOR” display area on the
receiver.
This now, replace Wireless Remote Sensor battery compartment cover ,Open Weather Station battery compartment
cover ,Insert 2 x AA batteries observing polarity [ “+” and “–“ marks]
After receiver has created a connection to the remote sensor, it will then be enters the Radio control time receive
mode.
Reception of the Radio signal:
The clock automatically starts the WWVB signal search after 7 minutes of any restart or changing of new fresh
batteries. The radio mast icon starts to flash.
At 1:00 /2:00 / 3:00 am, the clock automatically carries out the synchronization procedure with the WWVB signal to
correct any deviations to the exact time. If this synchronization attempt is unsuccessful (the radio mast icon
disappears from the display), the system will automatically attempt another synchronization at the next full one hour.
This procedure is repeated automatically up to total 5 times.
To start manual WWVB signal reception, press and hold down the “▲” button for two seconds. If no signals received
within 7 minutes, then the WWVB signal search stops (the radio mast icon disappears) and start again at the next full
one hour.
During RC reception，to stop searching radio signal, press the “▲” button once.
F.Y.I.:
A flashing radio mast icon indicates that the WWVB signal reception has started
A continuously displayed radio mast icon indicates that the WWVB signal was received successfully
We recommend a minimum distance of 8 feets to all sources of interference, such as televisions or computer
monitors
Radio reception is weaker in rooms with concrete walls (e.g.: in cellars) and in offices. In such extreme
circumstances, place the system close to the window.
During the RC receive mode, only the "▲" button function, other button operation have no function, If you want
to carry out other functions of operation, please press "▲" button to exit the RC receiving mode.
Manual time setting:
Press once “ ” button, can switch the display calendar or second
Press and hold down the “ ” button for 2 seconds, the 12/24 hour mode display starts to flash. Now use “▲” and
“▼” buttons to set the correct 12/24 hour mode.
Press “ ” to confirm your setting, the Time zones start to flash, Now use “▲” and “▼” buttons set a correct time
zone (PST MST CST and EST).
Press “ ” to confirm your setting, the DST icon to flash, Now use “▲” and “▼” buttons to set the DST in ON or OFF.
Press “ ” to confirm your setting, the Hour display starts to flash. Now use “▲” and “▼” buttons to set the correct

EM3388-WWVB Manual
hour.
Press “ ” to confirm your setting, the Minute displays starts to flash. Now use “▲” and “▼” buttons to set the correct
minute.
Press “ ” button to confirm your setting, the Month and Date icon display starts to flash. Now use “▲” and “▼”
buttons to set the date display on Month/Date or Date/Month.
Press “ ” button to confirm your setting, the Year display 2015 starts to flash. Now use “▲” and “▼” buttons to set
the correct year.
Press “ ” button to confirm your setting, the Month display starts to flash. Now use “▲” and “▼” buttons to set the
correct month.
Press “ ” button to confirm your setting, the Date display starts to flash. Now use “▲” and “▼” buttons to set the
correct date.
Press “ ” to confirm your setting and to end the setting procedures, enter the clock mode.
F.Y.I.:
After 20 seconds without pressing any button, the clock switches automatically from Set Mode to Normal Time Mode.
America time zone：
EST: Eastern Standard Time (E) -5
CST: Central Standard Time (C) -6
MST: Mountain Standard Time (M) -7
PST: Pacific Standard Time (P) -8
The time zone must be set correctly according to the weather station area, or when the time signal is received, the
time will be incorrect
When the Daylight saving time system is not implemented in this area, please set DST to OFF
Setting the daily alarms:
Press once “ ” button, can switch the display calendar or alarm time
Press and hold down “ ” button for 2 seconds until Alarm Time hour display of the Alarm time starts to flash. Use the
“▲” and “▼” buttons to set the required hour.
Press “ ” button to confirm your setting, The Minute display of the Alarm time starts to flash. Use the “▲” and “▼”
buttons to set the required minute.
Press “ ” button to confirm your setting and to end the setting procedure.
F.Y.I.:
After 20 seconds without pressing any button the clock switches automatically from setting mode to Normal clock
mode.
The alarm for opening and closing
The alarm shift switch is pushed in the “ ” position, LCD display the “ ” icon, the alarm function is open
Product back of the alarm shift switch is pushed in the “ ” position, the “ ” icon disappears, the alarm function is
close
F.Y.I.:
The alarm will sound for 2 minutes if you do not deactivate it by pressing any button. In this case the alarm will be

EM3388-WWVB Manual
repeated automatically after 24 hours.
Rising alarm sound (crescendo, duration: 2 minutes) changes the volume 4 times whilst the alarm signal is heard.
Switching off the alarm signal
Press any button except the “ ” button to stop the alarm signal. It is not necessary to reactivate the alarm. It
switches itself automatically to the alarm time which has already been set.
Snooze function:
Touch the " " field or press the “ ” button the alarm signal sounds to get to SNOOZE mode. The alarm
signal sounds again after approx. 5 minutes.
Lunar phases and tide indicator:
The weather station has a display which automatically displays the current lunar phase
New
moon
Waxing
half-moon
Half-moon
Waxing full
moon
Full
moon
Waning full
moon
Half-moon
Waning
half-moon
°C/°F temperature display
The temperature is displayed either in °C/°F. Briefly pressing the “▲” button allows you to switch between the
individual modes.
Comfort display
Indoor comfort level is calculated according to the indoor temperature and humidity, a total of 5 levels.
Comfortable too cold or too hot
Displaying temperature/humidity/ barometric pressure and temperature/humidity trend
The current indoor temperature/humidity/barometric pressure and the temperature/humidity trend (indoors) are
shown in the LCD display.
After successfully connecting with the remote sensor, the weather station can display the remote
temperature/humidity and the temperature/humidity trend (remote)
You may see the following displays:
The temperature/humidity is rising.
The temperature/humidity is remaining constant.
The temperature/humidity is falling.
Remote sensor transmission:
When the Weather Station successfully receives signals from the wireless sensor, the temperature and humidity of
the "REMOTE SENSOR" are displayed on the "REMOTE SENSOR" column of the weather station.

EM3388-WWVB Manual
The weather station can connect up to 3 channel wireless sensor registration, the use of multiple wireless sensor,
the wireless sensor channel cannot choose the same channel at the same time (a total of 1, 2, 3 channel can
choose,)
Press the “▼” key can switch the display of different channels of remote temperature and humidity, when displaying
the symbol " ", will display the channel every 5 seconds automatically switch a channel
If the weather station failed to receive transmission from remote sensor (“- -”display on the LCD), press and hold “▼”
button for 3 seconds to receive transmission manually. the remote temperature will show an animation of the RF
antenna symbol，the Base Station will re receive the wireless signal of the remote sensor.
F.Y.I.:
when the wireless sensor set up different channels, the weather station "REMOTE SENSOR" also want to switch to
the same channel. When there is no wireless sensor signal transmission on the channel, "--" will be displayed in the
channel of the weather station
When the wireless remote sensor has no channel selection function, the sensor defaults to channel 1.
Maximum/Minimum Temperature/Relative Humidity
To toggle indoor/ remote maximum, minimum temperature and humidity data, press the “MEM” button:
Once to show the maximum temperature and humidity values.
Twice to sow the minimum temperature and humidity values
Three times to return to the current temperature and humidity levels
To reset the maximum and minimum temperature and humidity, press and hold down the “MEM” button about 2
seconds. This will reset all minimum and maximum data recorded to the current displayed values.
F.Y.I.:
If the temperature reading is below ranges, the LL.L will be displayed. If the temperature reading is above ranges,
the HH.H will be displayed.
Remote Temperature alert setting
Press and hold down the “ ” button for 2 seconds until the icon for the Temperature Alert” starts to flash
The icon of Upper limit of the Temperature alarm starts to flash. Use the “▲” and “▼” buttons to set the required
maximum temperature. Press “ ” to confirm your setting.
The icon of the Lower limit of the Temperature alarm starts to flash. Use the “▲” and “▼” buttons to set the required
minimum temperature. Press “ ” button to confirm your setting and to end the setting procedure
F.Y.I.:
Before entering the setup, you must select the remote channel, different channels can set different temperature
alarm range
Temperature and frost alert
Press “ ” button to activate or deactivate the remote temperature alert, When the remote temperature alarm is
activated, the temperature alarm icon is displayed in the remote sensor bar
When the remote channel temperature value exceeds the set temperature range, will activate the alarm, the weather

EM3388-WWVB Manual
station will every minute continuous alarm 5 times, at the same time, temperature alarm in alarm icon " " flashes,
If the alarm activates the temperature that is currently displayed on the channel, its temperature value and alarm
upper limit icon “ "or lower limit icon" " also flashes
When the temperature of REMOTE SENSOR is –1°C to + 3°C or +30°F to + 37°F, the frost alarm will be activated,
symbol " " flashing.
F.Y.I.:
When the temperature is higher than the upper limit of the alarm temperature setting, the activation of the upper limit
alarm, symbol " " flashing,
When the temperature is lower than the lower limit of the alarm temperature, the lower limit alarm is activated, and
the symbol " " flashes
Low battery:
If the battery symbol “ ” appears the batteries in the remote sensor should be replaced as soon as possible.
The weather forecast:
The weather station calculates a weather forecast for about the next 12 hours based on the barometric pressure
trend. Of course this forecast can‘t compare to that of professional weather services supported by satellites and high
performance computers, but merely provides an approximate indication of current developments. Please take the
weather forecast from your local weather forecasting service into account as well as the forecast from your weather
station. If there are discrepancies between the information from your device and from the local weather forecasting
service, please take the advice of the latter as authoritative.
Press and hold the “ ” button for 2 seconds to enter the air pressure unit and weather settings, the pressure units
will be flashing display, Use the “▲” and “▼” button to set the pressure unit to display in the "hPa/mb" or "inHg".
Press the “ ” key to confirm the settings and switch to the weather, the weather graphics will be flashing display,
Use the “▲” and “▼” button to set the current weather conditions, so that the weather forecast is more accurate.
The weather station displays the following weather symbols:
sunny
slightly
cloudy
cloudy
rainy
Heavy rainy
Snowy
The weather station can display the barometric pressure trend.
You may see the following displays:
The barometric pressure will rise.
The barometric pressure will remain constant.
The barometric pressure will fall.
Background lighting
If the product is powered by batteries, touch the " " field. Backlight lit 15 seconds.

EM3388-WWVB Manual
When the power supply of the product is inserted into the power supply adapter, the battery will automatically
disconnect the power supply, and the backlight will always be bright. Press the “ ” button to adjust the brightness of
the backlight, you can adjust the 5 state: 4 different brightness backlight and close the backlight. Users can choose
according to the personal preferences of different brightness backlight or turn off the backlight. Turn off backlight when
you can touch the " " field to light the backlight 15 seconds
After-sales Service
Thank you for purchasing from Kalawen. If you have any question about the product, please feel free to contact us via
Amazon messages or email to [e-mail]. We will reply you as soon as possible and offer you
the best shopping experience.