User manual CITIZEN WATCH C46

[. . . ] Features This watch allows you to display the time in 30 cities and UTC ( universal time coordinated ) time worldwide by a simple button operation. The watch is also equipped with an internal EL (electroluminescence) lamp function that allows you to read the display even in the dark. Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Name of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Switching Modes (Functions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] (All the display segments will appear. ) (4) Push the crown in. (At this point, a monitor sound is heard. ) 15. How to Handle the Calculating Functions Some are not equipped with this function depending on the model. Note the points below when using this function. · Use the calculating functions of this watch as a guideline only. · This scale cannot be used for position of the decimal point. Name of Scale · Marking ER LIT S. T. This completes the all-reset operation. Set each mode correctly before using the watch. Distance Conversion (Kilometers/miles/nautical miles) 26 Speed Index S. FU EL L BS . Volume-weight Conversion (Liters/U. S. gallons/IMP. (imperial) gallons/fuel pound/oil pound) Fuel conversion (Liters/U. S. gallons) OIL LBS. IMP. GAL. U. S Inner scale outer scale GA L. 27 A. Navigational calculation 1) Time required Example : Obtain the time required for the flight of an aircraft at 180 knots for 450 nautical miles. Answer : Align "18" on the outer scale with the SPEED INDEX () on the inner scale. Then, "45" on the outer scale corresponds to "2:30" on the inner scale (time scale) . Thus, the time required for the flight is 2 hours and 30 minutes. 2) Knots (air speed) Example : Obtain the knots (air speed) for 240 nautical miles with a flight time of 1 hour and 20 minutes. Answer : Align "24" on the outer scale with "1:20" on the inner scale (time scale) . Then, the SPEED INDEX () on the inner scale corresponds to "18" on the outer scale. Thus, the air speed for the flight is 180 knots. 3) Flight distance Example : Obtain the air distance when the air speed is 210 knots and the flight time is 40 minutes. Answer : Align "21" on the outer scale with the SPEED INDEX () on the inner scale. Then, "40" on the inner scale corresponds to "14" on the outer scale. Thus, the air distance of the flight is 140 nautical miles. 28 4) Rate of fuel consumption Example : Obtain the rate of fuel consumption (gallons/hour) when the flight time is 30 minutes and the fuel consumption is 120 gallons. [. . . ] If a child swallows the battery, contact a physician immediately. CAUTION: Replacing the battery · For replacement of the battery, take your watch to your dealer or Citizen Service Center. · Replace the battery as soon as possible if the service life of the battery has expired. Leaving a depleted battery in the watch may result in leakage, which can damage the watch severely. CAUTION: Operating environment · Use the watch within the operating-temperature range specified in the instruction manual. [. . . ]