MA0406-EA
Operation Guide IDR-200
ILLUSTRATION
Main unit
oC oF
/
SET
SELECT
1cm
RE-SYNC
WAVE
RESET
oC/oF
SET
SELECT
RE-SYNC
WAVE
RESET
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Operation Guide IDR-200
TIME CALIBRATION SIGNAL RECEPTION PRECAUTIONS
USING THE CLOCK
• This clock is able to receive the time calibration signal transmitted from
Mainflingen, Germany (located 25kilometers southeast of Frankfurt).
Signal reception is possible within approximately 1,200 km of the
transmitter.
• Even when the clock is within the reception range, signal reception may
be impossible if the signal is blocked by mountains or other geological
formations between the clock and signal source.
Any of the following procedures can be used to set current date and time.
• Auto receive of the time calibration signal
Mainflingen
• Manual receive of the time calibration signal
1200 km
• Manual setting without using the time calibration signal
Auto Receive
• The clock receives the time calibration signal eight times each day (2:00, 5:00, 8:00, 11:00, 14:00, 17:00, 20:00,
23:00).
• Signal reception is affected by weather, atmospheric conditions, and
seasonal changes.
• A signal receive operation takes from two to ten minutes under good signal conditions.
• The time calibration signal bounces off the ionosphere. Because of this,
such factors as changes in the reflectivity of the ionosphere, as well as
movement of the ionosphere to higher altitudes due to seasonal
atmospheric changes or the time of day may change the reception
range of the signal and make reception temporarily impossible.
• Reception is best when the back of the clock is facing toward
Mainflingen. Note, however, that moving the clock while the time
calibration signal receive operation is taking place will make stable
reception impossible.
Antenna Icon
If you see this:
Icon is flashing.
Icon is not displayed.
Icon is displayed (not flashing).
It means this
Signal reception is in progress.
The last receive operation failed.
The last receive operation was successful.
Wave OK Indicator
• Think of the clock as acting like a TV or radio when it is receiving the calibration signal.When receiving indoors,
move to a location as near as possible to a window. Proper signal reception can be difficult or even impossible
under the conditions listed below.
If you see this:
OK is not displayed.
It means this
All receive operations over the past 24 hours failed, or signal
reception is in progress.
OK is displayed.
At least one of the receive operations over the past 24 hours was
successful.
Unsuccessful Signal Reception
The antenna icon disappears from the display when a signal receive operation is unsuccessful. If this happens,
try changing the position or orientation of the clock, and press the WAVE button (3) to receive again.
Inside or among
buildings, or near
neon signs
Inside a vehicle
Near refrigerators
Near a
Near high-tension
power lines
Among or behind
mountains
Manual Receive
or other household construction site,
• Press the WAVE button (3) to trigger a calibration signal receive operation.
• Use the WAVE button (3) to trigger a receive operation after replacing the clock’s batteries or if the auto receive
operation was not performed correctly for some reason.
appliances, near
office equipment,
mobile phones or
wireless LAN
devices
airport, or other
sources of
electrical noise,
underground or in
tunnels, near
railroads,
Important!
• Do not perform any button or switch operation while a signal receive operation is in progress.
• The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.
• The DST indicator appears on the display when Daylight Saving Time (summer time) data is received.
highways, or radio
stations with
interfering
frequencies
• Signal reception is normally better at night than during the day.
• Radio interference can make signal reception impossible.
• Strong electrostatic charge can result in the wrong time being set.
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Operation Guide IDR-200
Setting the Time and Date Manually
BATTERY REPLACEMENT
• When using the clock in an area that is outside of the range of the transmitter in Mainflingen or in an area where
signal reception is impossible for some reason, you need to manually adjust the time as required.
1. Press the SET button (2) to cycle through the setting screens as shown below.
Low Battery Warning
Note that the indicator appears on the main unit display when sub-unit battery power goes low.
Replace the batteries as soon as possible.
Normal Timekeeping Screen
To replace main unit batteries
Replace batteries whenever the display of the clock becomes dim and difficult to read.
1. Open the battery compartment cover as shown in the illustration.
2. Remove all of the old batteries.
3. Load a full set of new batteries. Make sure that their positive (+) and negative (–) ends face in the correct
directions. If you load batteries incorrectly, they can burst and damage the main unit.
4. Replace the battery compartment cover.
5. Press the RESET button (4). Be sure to press the RESET button (4) after replacing batteries.
Year Setting Screen
12-hour/24-hour Timekeeping Screen
To replace sub-unit batteries
1. Open the stand so you can see the back cover.
2. Remove the back cover screw, and then open the back cover.
3. Remove both old batteries.
4. Load new batteries. Make sure that their positive (+) and negative (–) ends face in the correct directions.
If you load batteries incorrectly, they can burst and damage the sub-unit.
5. Replace the back cover and secure it in place with the screw.
6. Press the RESET button (9). Be sure to press the RESET button (9) after replacing batteries.
7. On the main unit, press the RE-SYNC button (6).
Month and Day Setting Screen
Time Setting Screen
Battery precautions
• Keep batteries out of the reach of small children. If a battery is accidentally swallowed, contact your physician
immediately.
• Be sure to load the batteries with their positive (+) and negative (–) ends facing correctly.
• Never mix old and new batteries, or batteries of different brands.
• Never charge the batteries that come with the product.
• Should batteries ever leak while in the product, wipe out the fluid with a cloth, taking care not to let any get onto
your skin.
• Replace the batteries at least once a year, even if the current batteries are working properly.
• The batteries that come with the product lose some of their power during transport and storage.
2. While the screen you want is on the display, use the Time Setting buttons (1) to change the digits that are
flashing.
THERMOMETER FUNCTIONS
Press + to increase
the flashing digits.
Press
the flashing digits.
—
to decrease
Both the main unit and the sub-unit are equipped with their own temperature sensors. Temperature data measured
by the sub-unit is sent by wireless transfer to the main unit. You can toggle the main unit display between the main
unit temperature reading and the sub-unit temperature reading. This makes it possible to view both the indoor and
outdoor temperature on the main unit display.
• Holding down + or – changes the flashing digits at high speed.
• You can set the year in the range of 2000 to 2039. The day of the week is set automatically in accordance with
the date setting.
Temperature Measurements
• Pressing + or – while the Time Setting Screen is on the display causes the seconds count to be reset to 00.
• Each press of + or – while the 12-hour/24-hour Timekeeping Screen is on the display toggles between 12-hour
and 24-hour timekeeping.
• Both the main unit and the sub-unit take temperature measurements every 16 seconds.
• The temperature display shows “LO” for temperatures below –50°C (–58°F) and “HI” for temperatures above
70°C (158°F).
• Though temperature readings are displayed up to 0°C (32°F) and greater than 41°C (105°F), note that such
readings are actually outside the guaranteed temperature range of this clock.
3. After configuring the settings you want, use the SET button (2) to display the Normal Timekeeping Screen.
• The clock automatically returns to the Normal Timekeeping Screen if you leave a setting screen on the display for
about three minutes without performing any operation.
Switching between Celsius and Fahrenheit
• Push the °C/ °F button (5) to select either Celsius (°C) or Fahrenheit (°F).
Celsius (°C)
°C
Fahrenheit (°F)
°F
°C/ °F button (5)
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Operation Guide IDR-200
Switching between Main Unit and Sub-unit Temperature Data
Switching between Celsius and Fahrenheit
• Press the SELECT button (7) to toggle the display between the main unit (INDOOR) temperature and the sub-
• Press the °C/ °F button (A) to toggle between Celsius (°C) and Fahrenheit (°F).
unit (OUTDOOR) temperature.
Celsius (°C)
Fahrenheit (°F)
Main unit temperature: INDOOR indicator displayed
Sub-unit temperature: OUTDOOR indicator displayed
• The display does not change to the sub-unit (OUTDOOR) temperature if no data has been received from the sub-
unit yet.
• Holding down the SELECT button (7) for about two seconds turns on auto display switching ( displayed),
which causes the temperature display to alternate between the main unit temperature and sub-unit temperature
at five-second intervals. To turn off auto display switching ( not displayed), hold down the SELECT button (7)
for about two seconds again.
°C/ °F button (A)
Switching between Current Temperature and Humidity
• Press the SELECT button (8) to toggle the display between the current temperature and current humidity.
• Holding down SELECT button (8) for about two seconds causes the display to continually toggle between the
temperature and humidity at five-second intervals.
Main unit
INDOOR
Sub-unit
OUTDOOR
Temperature
Humidity
SELECT button (7)
SELECT button (8)
HYGROMETER FUNCTIONS
Both the main unit and the sub-unit are equipped with their own humidity sensors. Humidity data measured by the
sub-unit is sent by wireless transfer to the main unit. You can toggle the main unit display between the main unit
humidity reading and the sub-unit humidity reading. This makes it possible to view both the indoor and outdoor
humidity on the main unit display.
Location
• Place the sub-unit in a location where it will not be exposed to rain, direct sunlight, or other elements.
USING THE WEATHER FORECAST FEATURE
A built in pressure sensor makes it possible to forecast upcoming weather over the next 12 hours based on
changes in barometric pressure. Note that these forecasts are not absolutely accurate, and are intended for
general reference only.
Humidity Measurements
• Both the main unit and the sub-unit take humidity measurements every 16 seconds.
• The humidity display shows “LO” for humidity below 10% and “HI” for humidity above 90%.
Switching between Main Unit and Sub-unit Humidity Data
• Press the SELECT button (7) to toggle the display between the main unit (INDOOR) humidity and the sub-unit
(OUTDOOR) humidity .
Main unit humidity: INDOOR indicator displayed
Sub-unit humidity: OUTDOOR indicator displayed
• The display does not change to the sub-unit (OUTDOOR) humidity if no data has been received from the sub-unit
yet.
Weather Forecasts
• Barometric pressure readings are taken every 15 minutes. Weather forecasts are based on the last six readings.
Upcoming weather forecasts are displayed using the graphic indicators shown below.
Sunny
Sunny, some clouds
Cloudy
• Holding down the SELECT button (7) for about two seconds turns on auto display switching ( displayed),
which causes the humidity display to alternate between the main unit humidity and sub-unit humidity at five-
second intervals. To turn off auto display switching ( not displayed), hold down the SELECT button (7) for
about two seconds again.
Main unit
INDOOR
Sub-unit
OUTDOOR
Rain
Stormy
SELECT button (7)
• Upcoming weather trends are indicated as shown below.
Improving weather Deteriorating weather
USING THE SUB-UNIT
Stable weather
Data Transfer from the Sub-unit
• Data is transferred from the sub-unit to the main unit every three minutes.
• The sub-unit is able to send data to the main unit up to an unobstructed distance of about 30 meters.
• The data receive status is indicated on the display of the main unit by the icons shown below.
Receive successful
Receive unsuccessful
• If a receive operation is not successful for some reason, the display of the main unit shows dashes (–) in place of
the sub-unit temperature and humidity values.
• If you experrience problems with data transfer, press the RE-SYNC button (6) to synchronize the two units. If
this does not eliminate the problem,try changing the positions or orientations of the main unit and sub-unit.
• The transferred data includes temperature and humidity data.
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Operation Guide IDR-200
MAIN UNIT/SUB UNIT COMMUNICATION PRECAUTIONS
Sub Unit Location
• Certain environmental conditions can greatly reduce the communication range.
• Avoid the following locations for the sub-unit.
Inside or among
buildings, or near
neon signs
Inside a vehicle
Near refrigerators
Near a
Near high-tension
power lines
or other household construction site,
appliances, near
office equipment,
mobile phones or
wireless LAN
devices
airport, or other
sources of
electrical noise,
underground or in
tunnels, near
railroads,
highways, or radio
stations with
interfering
frequencies
• Locating the sub-unit near a device that transmits radio signals using the same frequency as this product can
cause communication failure of this product.
• Avoid using multiple products in the same area. Doing so can cause mixing of their signals.
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