User manual CASIO ID-25B

[. . . ] 6 °C/ °F switch Slide to toggle the temperature unit between Celsius and Fahrenheit. · 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. USING THE CLOCK Selecting a Transmitter Slide the Transmitter switch (5) to specify Mainflingen, Germany (DCF) or Rugby, England (MSF) as the transmitter to be used for reception. [. . . ] · The time calibration signal is bounced off the ionosphere. Because of this, such factors as changes in the reflectivity of the ionosphere, as well 1, 800 kilometers Mainflingen 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 in the direction of the selected transmitter. Note, however, that moving the clock while the time calibration signal receive operation is taking place will make stable reception impossible. · 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. Antenna Icon The antenna icon appears when at least one signal receive operation is successful during a day. each day, and will reappear as soon as a subsequent signal receive operation is successful. Wave OK Indicator The Wave OK indicator is displayed when there has been a successful receive operation within the last hour. This indicator disappears at the top of each hour, or when you perform a manual receive operation. Unsuccessful Signal Reception The antenna icon disappears from the display if no signal receive operation is successful during a continuous 24-hour period. If this happens, try changing the position or orientation of the clock, and press the WAVE button (4) to receive again. · Press the WAVE button (4) to start a calibration signal receive operation. · Use the WAVE button (4) to perform a receive operation after replacing the clock's batteries or if the auto receive operation was not performed correctly for some reason. · The antenna icon appears when signal reception triggered by the WAVE button (4) is successful. Manual Receive 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. Note that Daylight Saving Time (summer time) is turned on and off in accordance with the received time calibration signal only. You cannot turn it on or off manually. Inside, among buildings, or near neon signs Inside a vehicle Near refrigerators or other household appliances, near office equipment, mobile phones or wireless LAN devices. Near a Near high-tension construction site, power lines airport, or other sources of electrical noise, underground or in tunnels, near railroads, highways, or radio stations with interfering frequencies. Among or behind mountains 2 Operation Guide ID-25B Setting the Time and Date Manually · When using the clock in an area that is outside of the range of the transmitter or in an area where signal reception is impossible for some reason, you need to manually adjust the time setting as required. Press the SET button (2) to cycle through the setting screens as shown below. Normal Timekeeping Screen THERMOMETER FUNCTIONS · A built-in sensor measures temperature and shows the measured value on the display. The readout from the temperature sensor can also be switched between Celsius (°C) and Fahrenheit (°F). · The temperature display shows "LO" for temperatures below ­50°C (­58°F) and "HI" for temperatures above 70°C (158°F). [. . . ] · The batteries that come with the clock lose some of their power during transport and storage. 2. While the screen you want is on the display, use the Time Set buttons (1) to change the digits that are flashing. Press + to increase the flashing digits. Press ­ to decrease the flashing digits. · Holding down + or ­ changes the flashing digits at high speed. · You can set the year in the range of 2000 to 2039. [. . . ]