User manual CASIO QW-1170

[. . . ] Its Auto Backlight function automatically lights the watch face whenever you turn your wrist towards your face. · In order to protect against running down the battery, the auto backlight function is automatically turned off approximately three hours after you turn it on. Repeat the above procedure to turn the auto backlight function back on if you want. · Pressing E in any mode illuminates the display for about two seconds, regardless of the auto backlight function on/off setting. About the Auto Backlight function While the Auto Backlight function is turned on, the backlight automatically lights for about two seconds in any mode whenever you position your wrist as described below. C E D Notes · The backlight of the watch employs an electroluminescent (EL) light, which loses illuminating power after very long use. · The illumination provided by the backlight may be hard to see when viewed under direct sunlight. [. . . ] The altitude measurements produced by this watch are subject to error caused by changes in atmospheric pressure. Because of this, we recommend that you set the reference altitude during your climb whenever one is available. A AUTO AL Altimeter mode measurement This type of measurement is performed only when the watch is in the Altimeter Mode. As soon as you enter the Altimeter Mode, measurements are taken every five seconds for the first three minutes. The display unit for Altimeter Mode measurements is 5 m, and the measurement range is 0 to 4000 m. · The measured altitude may be a negative value in cases where there is a reference altitude value set or because of certain atmospheric conditions. B m Understanding the altimeter display Use C to enter the Altimeter Mode. Note that once you enter the Altimeter Mode, if you do not press any button for 10 or 11 hours, the watch automatically returns to the Timekeeping Mode. A S ALTI C E D 1. After 4 or 5 seconds, either "OFF" or the current reference altitude value (if set) will start to flash. · The "OFF" indicator appears when the factory setting is being used for the calibration. Remaining memory A AUTO AL Altitude Graph (unit: 10m) Graphic display B Current altitude (flashing) AUTO AL 2. Press D to increase the current reference altitude value by 5 m or B to decrease it. · You can set the reference altitude within the range of ­4000 m to 4000 m. · Pressing B and D at the same time returns to the "OFF" message. Each part represents 1/10 of the difference between the first altitude measured by the memory measurement operation and the value you set as the altitude alarm. The graphic representation gives you some idea of how much farther you must go to reach the altitude indicated by the altitude alarm setting. · The graphic representation described below is not shown on the display if the altitude alarm is switched off. Important! You cannot delete data while a memory measurement is in progress ("AUTO" flashing on the display). A AUTO B m C 1. In the Recall Mode, display the initial data of the set of memory data you want to delete. · Display the maximum altitude or the minimum altitude if you want to delete it. To clear the data, hold down A until the watch emits a long beep (and until "CLR" stops flashing on the display). A S RECALL Example: When the initially measured altitude is less than the altitude alarm setting. Altitude alarm setting C E D Current altitude The graphic display would appear as illustrated here when your current altitude is 700 meters, after you set the altitude alarm for 1000 meters and the initial measurement was 0 meters. Note that seven segments of the graph are darkened because you are 7/10 of the way to the value set for the altitude alarm. BAROMETER FUNCTIONS This watch uses a pressure sensor to measure atmospheric pressure. This sensor can be calibrated. Important! The barometer that is built into this watch measures changes in atmospheric pressure, which you can then apply to your own weather predictions. It is not intended for use as a precision instrument in official weather prediction or reporting applications. · Segments in the graphic display darken as you approach the altitude alarm setting. If you descend away from the altitude alarm setting, the darkened segments are cleared from the graphic display. · All 10 segments are darkened when you reach or exceed the altitude set for the altitude alarm. [. . . ] If you move the 12 o'clock position slightly to the left or right (to move it off of the point between the two measurable directions), the Digital Compass should consistently produce the same reading. · Magnetism generated by nearby high-tension wires are interfering with reception of terrestrial magnetism. Move away from the high-tension wires and try again. Alarm 1 Alarm 2 Hourly Time Signal Alarm 5 3. After you select an alarm, hold down A until the hour digits flash on the display. [. . . ]