Citizen E610 Instruction Manual
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Citizen E610 Instruction Manual

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取扱説明書

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Summary of Contents for Citizen E610

  • Page 1 取扱説明書...
  • Page 2 機能針 （曜日、 クロノ分、 1/20秒クロノ） 受信準備 Function hand (day, chronograph minutes, Reception standby chronograph 1/20 seconds) 受信結果 受信レベル／受信結果 Reception result Reception level/Reception result （Ｂ）ボタン 24時間針 Button(B) 24 hour hand 分針 Minute hand 時針 りゅうず Hour hand Crown 日付 秒針 Date Second hand （Ａ）ボタン...
  • Page 3 Thank you for your purchase of this Citizen watch. Before using the watch, read this instruction manual carefully to ensure correct use. After reading the manual, store it in a safe place for future reference. Visit the Citizen website (http://www.citizenwatch-global.com/) to view visual guides for operation of your watch.
  • Page 4 n This watch is a radio wave watch that receives Japan standard radio waves. It is equipped with an Automatic Tuning Function that receives radio waves by automatically selecting the station with the strongest signal, a Automatic Reception Function that sets the time and date by automatically receiving radio waves at 2:00 AM or 4:00 AM each day, and a On Demand Reception Function that allows you set the time arbitrarily at any time.
  • Page 5 n  P lease check the following Check the movement before using your watch. of the second hand. Set the mode hand to the TME mode. Second hand moving (The mode can be switched by pulling the crown out at 1-second intervals to Position 1.
  • Page 6 Perform Free Reception hand indicates by referring to NO for the “Free Reception”. reception result If you are unable to receive radio waves, please inquire to the Citizen Second hand begins Consumer Help Desk at to move at 1-second intervals 0120-78-4807...
  • Page 7 n Please remember the following for receiving standard time radio waves. • Radio waves are received in the [Time Mode] (TME ⁄ 3 locations) and [Local Time Mode] (L-TM). Radio waves cannot be received in other modes. Automatic Reception The time and date are set by automatically receiving radio waves at 2:00 AM or 4:00 AM each day.
  • Page 8 [Reception Procedure] Take the watch off of your wrist, face the 6:00 position towards the radio wave transmitter station and place the watch in a stable location that allows radio waves to be received easily such as near a window. •...

  • Page 9: Safety Precautions

    n Safety precautions This manual contains the following instructions that should be strictly followed at all times to prevent injury to yourself and other persons as well as damage to property. Injuries and damage that might be caused by using the watch improperly or neglecting any of the instructions or precautions contained in this manual are classified with the following symbols.
  • Page 10 We recommend seeking the assistance of an experienced watch technician for sizing of your watch. If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury. Consult your nearest authorized Citizen service center.

  • Page 11: Table Of Contents

    CONTENTS 1. Features ..................... 116 2. Operating the Crown ................117 3. Before Using ....................118 A. Radio Wave Reception Function ............118 <For Good Reception> <Time Required for Reception> <Locations where Reception may be Difficult> <For Customers Having Difficulty in Receiving Radio Waves> 4.
  • Page 12 5. List of Functions Assigned to Mode Hand ..........130 6. Switching the Mode .................. 136 7. Using the Chronograph ................138 8. Setting Local Time and Daylight Savings Time ........141 9. Using the Alarm ..................146 10. Manually Setting the Time and Date ............148 A.
  • Page 13 12. Photoelectric Power Generation Function ..........162 <For Optimum Use of this Watch> 13. Unique Functions of Solar-Powered Watches ......... 164 A. Power Save Function ................166 <Power Save> <Canceling Power Save> B. Insufficient Charge Warning Function ..........167 C. Overcharging Prevention Function ............. 167 14.
  • Page 14 16. Troubleshooting ..................172 17. Precautionary Items and Usage Limitation ..........174 18. Warranty and After-Sales Service ............182 19. Specifications .................... 184 20. Customer Support Center ................ 186 21. How to use the calculator function ............188...

  • Page 15: Features

    1. Features This watch is a radio wave watch that automatically corrects the time and date by receiving a standard time radio wave (time information) transmitted from radio wave transmitter stations located in Fukushima and Kyushu. It is also an Eco-Drive radio wave watch provided with a photoelectric power generation function that converts light energy into electrical energy to drive the watch.

  • Page 16: Operating The Crown

    2. Operating the Crown <Continuously Moving the Hands> Rapidly turn the crown continuously to the right or left (by two clicks) to continuously move the hands (hour hand, minute hand or second hand). Click the crown once to the right or left to stop the hands from moving. Rapidly turn the crown continuously (by two clicks) with the side of your finger.

  • Page 17: Before Using

    3. Before Using A. Radio Wave Reception Function <For Good Reception> This watch incorporates an antenna for receiving radio waves inside the watch case (at the 6:00 position). For good reception, it is recommended to have the 6:00 position of the watch facing in the direction of the radio wave transmitter station when receiving radio waves.

  • Page 18: Time Required For Reception

    • For proper reception of radio waves, remove the watch from your wrist and place the watch in a stable location that facilitates reception of radio waves such as in front of a window. Do not move the watch during reception. •...

  • Page 19: Locations Where Reception May Be Difficult

    <Locations where Reception may be Difficult> It may not be possible to properly receive radio waves at the following locations susceptible to generation of radio wave noise or under the following environmental conditions that cause difficulty in receiving radio waves. u Near high tension wires (power lines), railroad u Locations subject to extremely...

  • Page 20: For Customers Having Difficulty In Receiving Radio Waves

    4 entitled, “Reception of Radio Waves”, maps are available that indicate the direction of travel of radio waves from the radio wave transmitter stations. Please inquire to the Citizen Consumer Help Desk if you have difficulty in receiving radio waves.

  • Page 21: Reception Of Radio Waves

    4. Reception of Radio Waves There are three modes for receiving radio waves consisting of Automatic Reception, On Demand Reception and Recovery Automatic Reception. The time and date corrected automatically when radio waves have been properly received. When reception is completed, each hand displays the received time. [Note] Do not move the watch until reception is completed.
  • Page 22 (3) When reception is completed, the second hand automatically moves from H, M or L to display the correct time. 2. On Demand Reception • On Demand Reception lets you receive radio waves at any time. (1) When receiving radio waves, remove the watch from your wrist and place it in a stable location where radio waves can be received easily such as by a window with the 6:00 position of the watch facing in the direction of the radio wave transmitter station.
  • Page 23 <Tone Indicating Completion of On Demand Reception> • When reception has been successful, a beeping tone sounds twice, and the time is corrected to the correct time. • When reception has failed, a beeping tone sounds once, and the time returns to the time displayed before radio wave reception.

  • Page 24: Position Of The Second Hand During Reception

    A. Position of the Second Hand During Reception (Movement of Second Hand from Start of Reception to Completion) [Reception in progress] [Reception Level] [Completion of Reception] Reception in progress Reception level Reception level Button (A) • Second hand indicates a •...

  • Page 25: Confirmation Of Reception Result

    B. Confirmation of Reception Result • When button (A) is pressed once, the second hand moves to H, M, L or NO enabling you to confirm the reception result. [Note] Since the second hand moves to the 12:00 position and On Demand Reception begins if button (A) is depressed continuously for 2 seconds or more, do not press button (A) for 2 seconds or more when confirming the reception result.

  • Page 26: Reception Level And Reception Result

    C. Reception Level and Reception Result • During the time radio waves are being received, the second hand waits at the reception position corresponding to the reception state to indicate the reception level. Following reception, the reception result can be confirmed by pressing button (A) once.

  • Page 27: General Reference For Receiving Areas

    D. General Reference for Receiving Areas This watch is provided with an automatic transmitter station selection feature that automatically selects the station to be used for reception of standard time radio waves. These areas may vary due to changes in reception status depending on the time zone, seasonal variations and weather.
  • Page 28 Rough receivable range Radius of about900Km Standard time radio waves transmitted from the two standard time radio wave transmitter stations in Japan are managed and operated by the National Institute of Information and Communications Technology based on a cesium atomic clock reported to have timekeeping error of only 1 second every 100,000 years.

  • Page 29: List Of Functions Assigned To Mode Hand

    5. List of Functions Assigned to Mode Hand Name Crown position TME (*1) Normal position Stops at chronograph Function hand Position 1 Displays day 0 minutes position Position 2 Normal position Date Position 1 Displays date Displays date Position 2 Normal position Hour hand ⁄...
  • Page 30 Please read this section while referring to the watch illustration found at the beginning of this manual. *1: The same time is displayed at three locations of the TME mode. L-TM Displays day of Stops at chronograph Stops at chronograph Displays day local time 30 seconds position...
  • Page 31 *1: The same time is displayed at three locations of the TME mode. Name Crown position TME (*1) Normal position Displays seconds Stops at 0 position Mode switching Mode switching Position 1 (stops at 30 seconds (stops at 30 seconds Second hand position) position)
  • Page 32 L-TM Displays alarm Displays elapsed Displays seconds Stops at 12:00 position ON ⁄ OFF years ⁄ month Mode switching Mode switching Mode switching Mode switching (stops at 30 seconds (stops at 30 seconds (stops at 30 seconds (stops at 30 seconds position) position) position)
  • Page 33 *1: The same time is displayed at three locations of the TME mode. Name Crown position TME (*1) Reception result ⁄ Displays 1 ⁄ 20 seconds Normal position Reception standby when chronograph stopped Position 1 No change Button (A) No change Zeroes second hand to Position 2 12:00 position...
  • Page 34 L-TM Reception result ⁄ Alarm tone monitor Reception standby No change No change No change No change Confirms whether daylight savings time No change No change ON ⁄ OFF Switches alarm ON ⁄ OFF Switches daylight Selects location for Selects location for date savings time reference position correction...

  • Page 35: Switching The Mode

    6. Switching the Mode • This watch is equipped with six modes consisting of a time (displayed at three locations), chronograph, local time, reference position, alarm and calendar mode. • The same time is displayed at all three locations in the time (TME) mode. <Procedure for Switching the Mode>...
  • Page 36 (2) Pull the crown out further to Position 2 (mode correction position) to enter the correction state of each mode. • Read the correction procedures for each mode for details on correcting each mode. [Mode Names] Time mode Chronograph mode Calendar mode Time mode Time mode...

  • Page 37: Using The Chronograph

    7. Using the Chronograph • The chronograph is able to measure time up to 59 minutes 59.95 seconds in 1 ⁄ 20 second units. It is reset to 0 after timing. <Meanings of Hands When Timing with the Chronograph> Pull the crown out to Position 1 and then turn the crown to align the mode hand at [CHR] (chronograph).
  • Page 38 • The function hand changes to chronograph minutes or chronograph 1 ⁄ 20 seconds. • It moves at one minute intervals to measure chronograph minutes. • When button (A) is pressed to start the chronograph, it displays time in 1 ⁄ 20 chronograph seconds for as long as it is pressed.
  • Page 39 (2) If button (A) is pressed while the chronograph is stopped, the function hand displays the time in chronograph 1 ⁄ 20 seconds for as long as it is pressed. Releasing button (A) returns the function hand to displaying chronograph minutes.

  • Page 40: Setting Local Time And Daylight Savings Time

    8. Setting Local Time and Daylight Savings Time • The local time function lets you set the watch to a time in a different area from the time set in the time mode [TME]. • Time corrections (time difference) can be made in 1 hour units. •...
  • Page 41 <Procedure for Setting Local Time> Pull the crown out to Position 1 and turn to align the mode hand to [L-TM] (local time). (1) Pull the crown out to Position 2 (local time correction position). • The second hand turns continuously and stops at the daylight savings time ON or OFF position.
  • Page 42 (2) Turn the crown to set the hour and minute hands to the local time.   Turning the crown to the right (by 1 click) causes the hour and minute hands and the 24 hour hand to advance by 1 hour.  ‚...
  • Page 43 <Procedure for Setting Daylight Savings Time> This watch can also be set to daylight savings time (while local time is already displayed). (1) Pull the crown out to Position 2 (local time correction position). • The second turns continuously, and then stops at the daylight savings time ON or OFF position.
  • Page 44 (2) Press button (B) to change the daylight savings time setting. • Each time button (B) is pressed, a confirmatory tone sounds and ON or OFF can be selected for daylight savings time. The time advances by 1 hour if daylight savings time has been set to ON.

  • Page 45: Using The Alarm

    9. Using the Alarm • The alarm function uses a 24 hour clock. Once the alarm has been set, the alarm sounds for 15 seconds when the set time is reached once a day. • The alarm can be used in the time mode as well as the local time and calendar modes.
  • Page 46 • Press button (B) to move the second hand to the alarm ON position. • Each time button (B) is pressed, a confirmatory tone sounds and the alarm setting switches between ON and OFF. The setting can be changed while the crown is in the normal position or when pulled out to Position 1.

  • Page 47: Manually Setting The Time And Date

    10. Manually Setting the Time and Date A. Setting the Time (The same time is displayed at the three locations of the TME mode. It is only necessary to set the time at one of these locations.) • The time and date can be set manually when radio waves are unable to be received.
  • Page 48 <Time Correction Procedure> Pull the crown out to Position 1 and turn to align the mode hand at [TME] (time). (1) Pull the crown out to Position 2 (time correction position). • The second hand turns continuously at one second intervals to display the current time. (2) Press button (A) or (B) once while the second hand is moving at one second intervals.

  • Page 49: Setting The Date

    B. Setting the Date • This watch is equipped with a perpetual calendar that changes the year, month, date and day automatically until February 28, 2100 once the date has been set. <Changing the Corrected Location> Each time button (B) is pressed, the corrected location changes repeatedly in the order of Month ⁄...
  • Page 50 <Date Correction Procedure> Pull the crown out to Position 1 and turn the crown to align the mode hand at CAL (calendar). (1) Pull the crown out to Position 2 (date correction position). • After the second hand begins to move continuously, it moves to the month display ⁄...
  • Page 51 (2) Turn the crown to the right to align the second hand at the month and number of years elapsed from the most recent leap year. The second hand cannot be aligned by turning the crown to the left.  Turn the crown to the right (by one click) to align the second hand at the position corresponding to the month January zone and number of years elapsed from...
  • Page 52 [Reading the Number of Elapsed Years] Leap year: Starting point of each month zone 1st year after most recent leap year: 1st graduation of each month zone 2nd year after most recent leap year: 2nd graduation of each month zone 3rd year after most recent leap year: 3rd graduation of each month zone <Quick Reference Chart for Number of Years Since Leap Year>...
  • Page 53 (3) Press button (B). • The function hand moves back and forth for one revolution after which the watch enters the date correction mode. (4) Turn the crown to the set the date.  When the crown is turned to the right (by one click), the function hand makes five revolutions in the clockwise direction and the date advances by one day.
  • Page 54 (6) Turn the crown to set the day.  Turning the crown o the right (by one click) causes the day to change in the order of SUN  MON  ···· FRI  SAT and then back to SUN. ‚ T urning the crown to the left changes the day in the reverse order of SUN ...

  • Page 55: Checking And Correcting The Reference Position

    11. Checking and Correcting the Reference Position The reference position may shift if the watch is placed in environment in which it is subject to strong impacts or magnetism from the outside. If the watch is used while shifted from the reference position, the time, calendar, alarm and other modes will not function properly.
  • Page 56 (2) Return the crown to the normal position. • The second hand moves to the reference position (0:00) and stops. If the reference positions of each hand are properly displayed as described above, pull the crown out to Position 1, turn it and return the watch to the mode in which is was previously being used.

  • Page 57: Correcting The Reference Position

    B. Correcting the Reference Position • The reference position is corrected by repeating correction for each parameter in the order of seconds hour ⁄ minute hands date (function hand turns) each time   button (B) is pressed. [Change in Corrected Location] Seconds Hour ⁄...
  • Page 58 • Turning the crown continuously (rapidly by two clicks or more) causes the second hand to move continuously. • Turn the crown to the left or right to interrupt continuous movement of the second hand. • The second hand cannot be aligned at the reference position by turning the crown to the left.
  • Page 59 (4) Press button (B). Date changes to the 1st after the function hand • The function hand moves back and forth and then enters makes five revolutions the date correction mode. (5) Turn the crown to rotate the function hand and align the date between the 31st and 1st, and then turn the crown to align the function hand at MON.
  • Page 60 (6) Return the crown to the normal position. This completes the reference position correction procedure. • After correcting the reference position, always make sure to set the mode to the TME (time) mode and reset the watch to the correct time by On Demand Reception.

  • Page 61: Photoelectric Power Generation Function

    12. Photoelectric Power Generation Function This watch uses a rechargeable cell to store electrical energy. Once fully charged, the watch will continue to keep the correct time for about 6 months. If storing your watch in a location where it is not exposed to light, it is recommended to sufficiently charge the watch before storing.
  • Page 62 When the watch is removed, try to place it in as bright a location as possible such as near a window so that sunlight shines onto the watch dial. This will keep the watch charged continuously and enable it to continue to run properly at all times.

  • Page 63: Unique Functions Of Solar-Powered Watches

    13. Unique Functions of Solar-Powered Watches When the watch becomes insufficiently charged, the display changes as shown below. [Recovery Automatic Reception] [Normal Display] Radio waves are automatically When reception is successful*2 received once When charged...
  • Page 64 *1: If the watch has stopped as a result of being insufficiently charged, a minimum of about 30 minutes are required until recovery automatic reception even if the watch is exposed to light. *2: If recovery automatic reception has failed, the watch begins to run after returning to the time when the watch stopped as a result of being insufficiently charged.

  • Page 65: Power Save Function

    A. Power Save Function <Power Save> When the solar cell is continuously not exposed to light for 30 minutes or more, the second hand stops at the 12:00 position and the watch enters the Power Save mode (to reduce power consumption). •...

  • Page 66: Insufficient Charge Warning Function

    B. Insufficient Charge Warning Function The second hand changes from one-second interval movement to two-second interval movement. After about 4 days have passed since the start of two- second interval movement, the watch stops as a result of being insufficiently charged. [Note] During two-second interval movement: Two-second...

  • Page 67: General Reference For Charging Times Of Solar-Powered Watches

    14. General Reference for Charging Times of Solar-Powered Watches * Below are the approximate times required for charging when exposing the watch dial to light continuously. Please use this table as a reference only. Charging Time (approximate) To start working Illuminance To keep working To charge fully...
  • Page 68 Charging time for 1 day of operation: Time required for charging the watch to run normally for 1 day [Note] Once fully charged, the watch has a continuous operating time of about six months without further charging. When the Power Save function has been activated, the watch will continue to keep the correct time for about one year.

  • Page 69: Solar-Powered Watch Handling Precautions

    15. Solar-Powered Watch Handling Precautions <Always make sure to recharge frequently> • Please note that if you wear long sleeves, the watch may stop as a result of being covered by your sleeve and blocked from the light. • When you take off the watch, try to place it in as bright a location as possible. This will ensure that it will continue to run properly.
  • Page 70 <Replacement of Rechargeable Cell> • Because the watch uses a rechargeable cell, you do not need periodical cell replacement. However, power consumption may increase after using for an extended period of time due to deterioration, and the power may run out earlier than expected. To avoid this, we recommend that you have your watch inspected (Charge basis) periodically.

  • Page 71: Troubleshooting

    16. Troubleshooting Radio Wave Reception Function: Try checking the following when you think a problem has occurred. Problem Check Items Corrective Actions Watch does not • Is the mode at the time mode • Pull the crown out to Position 1 and turn to begin reception (TME) or local time mode set the mode to the timer mode or local time...
  • Page 72 Problem Check Items Corrective Actions Unable to receive • Are there objects that block • Try receiving radio waves while facing the 6:00 radio waves (even radio waves or generate position of the watch towards a window while within a receivable noise nearby ? avoiding objects that block radio waves or area)

  • Page 73: Precautionary Items And Usage Limitation

    17. Precautionary Items and Usage Limitation WARNING Water Resistance • Non-water resistant watches cannot be used underwater or in environments in contact with water. • Water-resistance for daily use (to 3 atmospheres) means that the watch may be worn while washing your face or in the rain, but is not to be immersed in water. •...
  • Page 74 • Refer to the watch dial and the case back for the indication of the water resistance of your watch. The following chart provides examples of use for reference to ensure that your watch is used properly. (The unit “1bar” is roughly equal to 1 atmosphere.) •...
  • Page 75 CAUTION To avoid injury • Be particularly careful when wearing your watch while holding a small child, to avoid injury. • Be particularly careful when engaged in strenuous exercise or work, to avoid injury to yourself and others. • Do NOT wear your watch while in a sauna or other location where your watch may become excessively hot, since there is the risk of burns.
  • Page 76 - Do not pour water from a tap directly onto your watch. - Take off your watch before taking a bath. • If seawater enters the watch, place the watch in a box or plastic bag and immediately take it in for repair. Otherwise, pressure inside the watch will increase, and parts (crystal, crown, push button, etc.) may come off.
  • Page 77 If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury. Consult your nearest authorized Citizen service center. <Temperature> • The watch may stop or the function of the watch may be impaired in extremely high or low temperature.

  • Page 78: Static Electricity

    <Strong Shock> • Avoid dropping the watch or subjecting it to other strong impact. It may cause malfunctions and/or performance deterioration as well as damage to the case and bracelet. <Static Electricity> • The integrated circuits (IC) used in quartz watches are sensitive to static electricity. Please note that the watch may operate erratically or not at all if exposed to intense static electricity.
  • Page 79 CAUTION Always Keep Your Watch Clean • Rotate the crown while it is pressed in fully and press the buttons periodically so they do not become stuck due to accumulations of foreign matter. • The case and band of the watch come into direct contact with the skin in the same manner as undergarments.

  • Page 80: Caring For Your Watch

    Caring for your Watch • Wipe any dirt or moisture such as perspiration from the case and crystal with a soft cloth. • For a metallic, plastic or rubber (urethane) watchband, wash any dirt off with water. Remove the small amounts of dirt trapped between the crevices of the metallic band with a soft brush.

  • Page 81: Warranty And After-Sales Service

    18. Warranty and service <Free Guarantee> In the case a malfunction has occurred during the course of normal use while the watch is still under warranty, the watch will be repaired free of charge in accordance with the conditions of the warranty included with this manual. <Stock Period of Repair Parts>...
  • Page 82 5 years as a guide. <Request to Customers> All parts of this watch, except for the band, are to be repaired only at CITIZEN. This is because special technologies and equipment are required to perform repairs, inspections and adjustments. Please make requests for repairs to Customer Support Center when having your watch repaired.

  • Page 83: Specifications

    19. Specifications 1. Model : E610 2. Type: Analog solar-powered watch 3. Timekeeping accuracy: Within ±15 seconds per month on average (when worn at normal temperatures of +5°C to +35°C and when not receiving radio waves) 4. Operating temperature range: -10°C to +60°C 5.
  • Page 84 • Reception result confirmation function (H,M,L,NO) • Chronograph function (60 minute timing, 1 ⁄ 20 second units) • Local time function (time difference correction: 1 hour units) • Reference position confirmation and correction function • Alarm function (24 hour clock alarm) •...

  • Page 85: Customer Support Center

    21.How to use the calculator function Note: In some models, the inner and outer scales are opposite. Be sure to make the appropriate substitutions to the following instructions.
  • Page 86 Simple Calculations [How to do multiplication] Q : 20 × 15 A : Adjust 20 of the outer scale until it points to 10 of the inner scale. You can read the digit 30 from of the scale of the outer scale corresponding to 15 of the inner scale and adding a unit, you can get the answer 300.
  • Page 87 [How to do division] Q : 250 ÷ 20 A : Adjust 25 of the outer scale until it points to 20 of the inner scale. You can read the digit 12.5 from of the scale of the outer scale corresponding to 10 of the inner scale and get the answer 12.5.
  • Page 88 [How to calculate ratios] Q : 30/20 = 60/A A : Adjust 30 of the outer scale until it points to 20 of the inner scale. You can read the digit 40 from of the scale of the inner scale corresponding to 60 of the outer scale and on all the positions above the scale, the ratio between “inner and outer”...
  • Page 89 [How to convert volume between different units of measurement] You can convert fuel between Pounds (lbs), U.S Gallons, Imperial Gallons or Liters. Q : How much is 13.1 lbs of fuel if it is converted into U.S.Gallons, Imperial Gallons and Litres respectively ? (1 FUEL.LBS is 0.167 U.S.GAL / 0.139 IMP.GAL / 0.632 Liters)
  • Page 90 [How to convert weight between the different units of measurement] You can convert between Oil in Pounds to U.S. Gallons, Imperial Gallons or Liters. Q : How much is 16.4 lbs of oil converted into U.S. Gallons, Imperial Gallons and Liters respectively ? (1 OIL.LBS.
  • Page 91 [How to convert distance between the different units of measurement] You can convert between Kilometers, Nautical Miles and Statute miles. Q : How many Kilometers and Nautical Miles are equivalent to 1 Statute Mile ? A : Adjust the “  ” of 10 of the outer scale until it points to the “  ” of STAT of the inner scale.
  • Page 92 [How to convert fuel between different units of measurement] You can convert between Liters, US Gallons or Imperial Gallons. Q : How many Liters are equivalent to 16.8 U.S Gallons ? A : Align the “  ” of U.S. GAL of the outer scale with the digit 16.8, which you want to convert, of the inner scale.
  • Page 93 How to use the motor sports function [Calculation of time needed to reach a set distance] Q : How long does it take for a vehicle travelling at a speed of 80km to travel 400km ? A : Align 80 of the outer scale with the SPEED INDEX “  ” of the inner scale. Result: 5 Hours (5.00) of the inner scale correspondes to 40 of the outer scale.
  • Page 94 [Calculation of speed] Q : What is the speed of a vehicle travelling a distance of 180km for period 2 hours and 30 minutes ? A : Align 18 of the outer scale with 2:30 of the inner scale. Result: 72km can be determined by comparing the SPEED INDEX “  ” of the inner scale and corresponding outer scale indications.
  • Page 95 [Calculation of driving distance] Q : Supposing that the speed is 60km/hour, what distance will a vehicle travel in 1 hour and 20 minutes ? A : Align 60 of the outer scale with the SPEED INDEX “  ” of the inner scale. Result: 80km corresponding to 1:20 of the inner scale can be figured out.
  • Page 96 [Calculation of fuel consumption rate (consumed per hour)] Q : If the drive time is 5 hours and 30 liters fuel are consumed, what is the fuel consumption rate ( liters/hour) ? A : Align 30 of the outer scale with 5:00 of the inner scale. Result: 6 Liters per hour - 60 is indicated on the SPEED INDEX “...
  • Page 97 [Calculation of fuel consumption] Q : How much fuel is needed for a vehicle to run 5 hours if the fuel consumption rate of that vehicle is 7 liters per hour? A : Align 70 of the outer scale with the “  ” of SPEED INDEX of the inner scale. Result: 35 liters - 35 corresponds to 5.
  • Page 98 [Calculation of drive time] Q : How many hours can a vehicle whose fuel consumption rate is 8 liters/hour run using 40 liters of fuel ? A : Align 80 of the outer scale with the SPEED INDEX “  ” of the inner scale. Result: 5 Hours - 5:00 on the outer scale corresponds to 40 of the inner scale.
  • Page 99 How to use the aviation function [Calculation of time needed to travel a set distance] Q : If the speed of an aircraft is 180 knots, how much time does it take the aircraft to fly 450 nautical miles ? A : Align 18 of the outer scale with the SPEED INDEX “...
  • Page 100 [Calculation of flight distance] Q : If the speed is 210 knots and the flight time is 40 minutes, how many nautical miles will an aircraft travel ? A : Align 21 of the outer scale with the SPEED INDEX “  ” of the inner scale. Result: 140 Nautical Miles –...
  • Page 101 [Calculation of fuel consumption rate (consumption per hour)] Q : If the flight time is 30 minutes and 120 gallons fuel is consumed, what is the fuel consumption rate ? A : Align 12 of the outer scale with 30 of the inner scale. Result: 240 gallons per hour - 24 corresponding to the SPEED INDEX “...
  • Page 102 [Calculation of fuel consumption] Q : If the fuel consumption rate of an aircraft is 250 gallons/hour, how many gallons of fuel are needed to fly 6 hours ? A : Align 25 of the outer scale with the “  ” of SPEED INDEX of the inner scale. Result: 1,500 gallons - 15 corresponds to 6:00.
  • Page 103 [Calculation of the flight time] Q : If an aircraft consumes 220 gallons per hour, how many hours can it fly when consuming 550 gallons fuel ? A : Align 22 of the outer scale with the “  ” of SPEED INDEX of the inner scale. Result: Two hours and thirty minutes - 2:30 corresponds to 55 of the outer scale.
  • Page 104 Terms for units indicated on slide rules and their explanations Description Category Unit indicated on slide rule Short for “nautical mile” * NAUT. 1NAUT. = 1.852km approx. 6,076 feet Short for “statute mile” STAT. 1STAT. = 1.609km (5,280 feet) Short for “kilometer” 1km = 3,280 feet Short for “feet”...
  • Page 105 Unit indicated on slide rule Description Category Short for “kilogram. ” 1 kg = 2.22 pound LBS. Short for “pound. ” 1 pound = 0.45 kg Short for “fuel pound” FUEL LBS. 1 FUEL pound = 0.167 U.S. gallon = 0.139 IMP . gallon Short for “oil pound”...
  • Page 107 ⑤ HAR07 CT032 CT043 http://citizen.jp/ Cal.E610...

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