NAUTICALC PLUS™ For the Boat and Airplane Enthusiast User’s Guide
TABLE OF CONTENTS Introducing: NautiCalc Plus . . . . . . . . . . . . . . .3 Keypad Functions . . . . . . . . . . . . . . . . . . . . .4 Basic Operations . . . . . . . . . . . . . . . . . . . . .12 Basic Math . . . . . . . . . . . . . . . . . .12 Memory Functions . . . . . . . . . . . .13 Preference Function . . . . . . . . . . .16 Using the NautiCalc Plus . . . . . . . . . . . . . . . 19 Entering/Converting Time Values . .19 Distance and Speed Calculations . .24 Entering and Converting . . . . . . . . .
INTRODUCING: NAUTICALC PLUS™ Designed primarily for boat and airplane enthusiasts, NautiCalc Plus provides the following features: ◆ Triangulation solutions ◆ Time math operations and conversions ◆ Distance calculations and conversions between m, km, nautical miles, statute miles, and fathoms ◆ Speed calculations and conversion between km/hr, mph, and knots ◆ Timer/stopwatch with split/lap functions ◆ And much, much more User’s Guide – 3
KEYPAD FUNCTIONS Standard Calculator Keys [On/C] — On/Clear Key Turns power on. One press clears the last entry. Two presses clear all temporary registers. [Off] — Off Key Turns power off and resets all non–permanent storage registers. [Rcl] — Recall Key Used to recall stored values. [Stor] — Storage Key Used to store values. [Conv] — Convert Key Used to convert values from one convention to another or to access special functions. [0] through [9] and [•] Keys used to enter digits.
Dimension Keys [Hr] — Hour Key Enters/converts to decimal hour or Hour:Minute:Second (H:M:S) time formats. Repeated presses toggle between formats. [Min] — Minute Key Enters/converts to decimal minute or Minute:Second (M:S) time formats. Repeated presses toggle between formats. [Sec] — Seconds Enters/converts to seconds. [:] — Separator Key Used as a separator when entering time values. [AM] Designates a time value entry as AM. [PM] Designates a time value entry as PM.
[Conv] [7] — Statute miles Enters/converts value to statute miles. [Conv] [5] — Meters Enters/converts value to meters. [Conv] [1] —Feet Enters/converts value to feet. [Conv] [2] — Yards Enters/converts value to yards. [Conv] [3] — Fathoms Enters/converts value to fathoms. [km/h] — Kilometers per hour Enters/converts value to kilometers per hour. [Knots] — Knots Enters/converts value to knots (nautical miles per hour). [Conv] [8] — Miles per hour Enters/converts value to statute miles per hour.
[d:m:s] — Degree:Minute:Second Enters/converts D:M:S degrees to and from decimal degrees. Triangulation Keys [Course°] Enters/displays the direction of travel. [1stØ] — Bearing 1 Enters/displays the first bearing measurement for triangulation solutions. [2ndØ] — Bearing 2 Enters/displays the second bearing measurement for triangulation solutions. [Dist] — Distance Enters, displays, or solves for distance (given speed and time values) with the initial press.
Travel Function Keys [Speed] Enters/calculates speed when used with the [Time] and [Dist] keys. [Time] Enters/calculates time when used in conjunction with [Speed] and [Dist] keys. [Conv] [Speed] — Capacity Enters/calculates fuel capacity. [Conv] [Time] — Efficiency Enters/calculates vehicle fuel consumption efficiency. [Conv] [Dist] — Range Enters/calculates the distance that can be traveled based on fuel quantity (capacity).
Timer Function Keys [Timer] — Stopwatch/Timer Used to access, start and stop the timer. [S/Lap] — Split/Lap Function Pauses the timer display without stopping the count. If the S/LP preference is set to “Split,” the total time elapsed from the start of the timer to the moment the [S/Lap] key is pressed displays. If set to “Lap,” the time elapsed between presses displays. For example, the first press of [S/Lap] displays the time elapsed from the timer’s start point to the time [S/Lap] is pressed.
Other Functions/Keys [Conv] [Rcl]—Clear Memory “0” Clears the value in the cumulative memory cell “0,” without changing the display. [Conv] [:] — 12 / 24 Hr Toggle Toggles the displayed time value from decimal format to sexagesimal (24–hour) format and vice versa. [Conv] [÷] — Inverse Function Calculates the inverse (1/x) of the displayed value. For example, the inverse of 100 is 0.01. [Conv] [x] — All Clear Resets calculator to default values and settings.
[Conv] [•] — Rate Allows you to multiply a dimensional value by a number to get an output that is a decimal number. [Prefs] — Preference Settings A multi–press key used to access and change the default preferences. Once in the preference setting mode, use the [+] or [–] keys to change preference options.
BASIC OPERATIONS Basic Math Your calculator uses standard chaining logic, which means that the calculations are made in the order entered. 3 3 3 3 [+] 2 [–] 2 [x] 2 [÷] 2 [=] [=] [=] [=] 5 1 6 1.5 Percent Calculations The percent [%] key is used for finding a given percentage of a number or for working percent add–on, discount or division calculations. 355 250 25 100 [x] [+] [–] [÷] 15 6.5 5 50 12 – NautiCalc Plus™ [%] [%] [%] [%] 53.25 266.25 23.75 200.
Delta Percent The Delta Percent function finds the percent change between two values. The [ =] key must be pressed to complete the calculation. 10 [Conv] [%] 15 [ =] 50. 100 [Conv] [%] 25 [ =] – 75. Memory Functions The NautiCalc Plus allows you to store, add, subtract, replace and recall up to 10 separate Memory values. Memory values do not change unless revised or the calculator is reset. Values can be stored in any format.
Memory Keystrokes [Stor] [0] through [9] Used to enter and store a displayed value in one of the Memory registers 0–9. Press [Stor] then the number key of the register in which you want the value stored. [Rcl] [0] through [9] Recalls and displays values stored in Memories 0–9. [0] [Stor] [1] through [9] Clears the Memory value from an entered Memory number (1–9). [Conv] [+] Clears Memory registers 0–9 without clearing the display. [Conv] [Stor] [0] Subtracts a value from Memory “0“ total.
Storing Values in Memory 1. Enter value into Memory 1: 355 [Stor] 1 M –1 355. 2. Replace the value in Memory 1: 25 [Stor] 1 M –1 25. 3. Clear display and recall Memory 1: [On/C] [On/C] [Rcl] 1 M 0. –1 25. M –1 4. Clear Memory 1: 0 [Stor] 1 0. Using Memory “0” Steps/Keystrokes Display 1. Enter and store 355 in Memory 0: 355 [Stor] 0 M –0 355. M M –0 –0 255. 610. M –0 745. – 135 2. Add 255: 255 [Stor] 0 [Rcl] 0 3.
Preference Function The NautiCalc Plus provides a preference function that is used to customize your calculator. To access and set preferences, see “How to Use the Preference Function.” Note: The preference settings do not change until revised or the calculator is reset by pressing [Conv] [x]. Preference Settings and Options *indicates the default value. 1 – TMR (Timer format ) 0:00:00.0 0:00:00.
5 – RATE (Rate format) * 0.00 0. 0.0000000 6 – SECS (Seconds) Off On * 7 – BEEP (Key Beeps) Off On * Note: The following exercises assume the NautiCalc Plus is set to its default values unless otherwise stated. If not, press [Conv] [x] to “clear all” and reset to defaults.
How to Use the Preference Function Step/Keystrokes Display 1. Clear the calculator and access the preference function: [On/C] [On/C] [Prefs] 0. TMR 00:00.0 2. Scroll to the preference setting you want to change: [Prefs] [Prefs] S/LP SPLIT BUZZ ON 3. Toggle preference option from “off” to “on” and back again: [+] [+] BUZZ OFF [–] BUZZ OFF BUZZ ON Note: To Exit the Preference Function, press any key except [–], [+] or [Off]: 4. Reset the calculator: [Conv] [x] 0. 5.
USING THE NAUTICALC PLUS Entering/Converting Time Values NautiCalc Plus recognizes two distinct time values: 1. Points in Time: 2. Time Periods: 9:22 AM, 5 PM 37 Min., 45 Sec. Time Math Rules Addition Period + Period = Period 3 Hrs. + 22 Min. = 3 HR 22 MIN Point + Period = Point 9 AM + 22 Min. = 9:22 AM Point + Point = Error Subtraction Period – Period = Period 3 Hrs. – 22 Min. = 2 HR 38 Point – Period = Point 9 AM – 22 Min.
Multiplication Period x Number = Period 9 Hrs. x 3 = 27 HR Period x Period = Error Point x Period = Error Point x Point = Error Point x Number = Error Division Period ÷ Period = Number 9 Hrs. ÷ 9 Min. = 60 Period ÷ Number = Period 9 Hrs. ÷ 60 = 9 MIN Period ÷ Point = Error Point ÷ Period = Error Point ÷ Number = Error Point ÷ Point = Error Entering Time Values When entering time unit values (Hr., Min. and Sec.), remember to enter the largest time unit first.
Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter 3:22: 3 [:] 22 [=] 03:22 3. Enter 17 min 32 sec: 17 [Min] 32 [Sec] [=] 4. Enter 423 min: 423 [Min] [=] 7:32 MIN SEC 423:00 MIN SEC 5. Enter 38.25 sec: 38.25 [Sec] [=] 38.25 SEC Colon and Designator (Safest) Time values can also be entered using the [: ] key, and the [AM] and [PM] designators to indicate Points in Time. Steps/Keystrokes Display 1. Clear calculator : [On/C] [On/C] 0. 2.
No Colon and Designator (Fastest) If entering points in time it is not necessary to use the [:] key. Instead, enter a time value then press [AM] or [PM] (as shown in step 2). Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter 8:05 AM: 805 [AM] [=] 8:05 AM Time Conversions The NautiCalc Plus easily converts between time formats by pressing [Conv] then the time format desired.
Adding Time Amounts Total the following time values: • 33 min 22 sec • 3 hr 21 min • 17 min 12.2 sec • 33.75 min Steps/Keystroke • 145 sec Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter 1st through 5th value: 33 [Min] 22 [Sec] [+] 33:22 MIN SEC 3 [Hr] 21 [Min] [+] 3:54:22 HR MIN SEC 145 [Sec] [+] 3:56:47 HR MIN SEC 17 [Min] 12.2 [Sec] [+] 4:13:59.20 HR MIN SEC 33.75 [Min] [=] 4:47:44.
Distance and Speed Calculations The NautiCalc Plus can perform math functions using units of speed and distance. Some points to remember while performing these calculations are: 1) When adding a list of numbers with the same unit designator (i.e., miles), only the first value entered requires a designator. The same is true when subtracting two numbers. 2) Mixing speed and distance units will result in an error due to the difference in dimensions.
Subtracting and Converting Speed Amounts Subtract 5.6 MPH from 23 knots, then convert the result to all available speed dimensions. Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter 23 knots: 23 [Knots] 23. KNOT 3. Subtract 5.6 MPH: [–] 5.6 [Conv] [8] [=] 18.133733 KNOT 4. Convert to km/h: [Conv] [km/h] 33.583674 KM/H 5. Convert to MPH: [Conv] [8] 20.867927 MI/H 18.133733 KNOT 6.
Adding and Converting Distance Amounts Add 23.5 meters and 3 nautical miles, then convert the result to all available distance dimensions. Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter 23.5 meters then add 3 nautical miles: 23.5 [Conv] [5] [+] 3 [Miles] [=] 5579.5 M 3. Convert to km, nautical miles, then statute miles: [Conv] [km] [Conv] [miles] [Conv] [7] 5.5795 3.012689 3.4669406 KM N MI MI S 4.
Entering and Converting Degrees:Minute:Seconds NautiCalc Plus enables you to directly enter and convert between decimal degree and degrees:minutes:seconds format. Successive presses of the [d:m:s] key toggle between formats. Improp-erly formatted entries will redisplay in the correct convention after a math operator key is pressed. Convert D:M:S Value to Decimal Enter 22° 14’ 26” and convert to decimal degrees. Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2.
Convert Decimal Degree to D:M:S Enter 38.59° and convert it to D:M:S format. Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter 38.59°: 38.59 [d:m:s] 38.59° 3. Convert to D:M:S: [d:m:s] DMS 38:35:24 D MIN SEC Using the Triangulation Function Triangulation solutions are easy when using NautiCalc Plus. By entering your course, bearings and the distance traveled between bearings, you can determine the distance from the object and the distance Abeam.
in succession. To find the distance Abeam, press [Dist] a third time. Triangulation Example 1 Using a lighthouse for positioning, your bearings read 33.75° and 57.10°. If the ship traveled 10 nautical miles between bearing measurements on a 12°34’26” course, what is your distance from the lighthouse at the second bearing measurement? What is the distance Abeam? Steps/Keystrokes Display 1. Clear calculator: [On/C][On/C] 0. 2. Enter course: 12 [d:m:s ] 34 [d:m:s] 26 [Course°] CRSE 12:34:26 D MIN SEC 3.
Triangulation Example 2 On a course of 25.25° you site a buoy and take a bearing of 25.93°. Your second bearing reads 74.27°. If your bearing readings were taken 45 minutes apart, and you were travelling at 25 knots, what is your distance traveled? What is the distance from the object and the distance Abeam? What is the distance Abeam in feet? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter course, then bearing 1 and 2: CRSE 25.25° 25.25 [Course°] BRG 1 25.93° 25.
Using Speed, Time and Distance Functions The [Speed], [Time] and [Dist] keys are used to calculate speed, time and distance. If you know two of the variables, NautiCalc Plus can solve for the third. Speed Calculation Example Your destination is 152.356 km away. How fast must you travel to reach your destination in 3.5 hours? How fast is this in miles per hour? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter time, distance and find speed: 3.5 [Hr] [Time] 152.356 [km] [Dist] 3.
Time Calculation Example If traveling at 15 knots, how long will it take to reach a destination 300 nautical miles away? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter speed, distance and find time: 15 [Knots] [Speed] 300 [Miles] [Dist] [Time] SPD DIST 15. KNOT 300. N MI 1200. MIN 3. Convert to hours: [Conv][Hr] 32 – NautiCalc Plus™ 20.
Distance Calculation Example If sailing for 3 hours and 35 minutes at an average speed of 45 knots, how many statute miles were traveled? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter time and speed: 3 [Hr] 35 [Min] [Time] TIME 3:35 HR MIN 45 [Knots] [Speed] SPD 45. KNOT 3. Find distance and convert to statute miles: [Dist] [Conv] [7] 161.25 185.
Using Capacity, Efficiency and Range The [Speed], [Time] and [Dist] keys are also used to calculate Capacity, Efficiency and Range values. Note: When entering a “Range” value to calculate “Efficiency,” always enter the “Range” value first. Capacity Calculation Example If a boat engine gets 28 miles per gallon and can travel 300 nautical miles on one tank of fuel, what is the capacity of the boat’s fuel tank? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2.
Efficiency Calculation Example If a boat’s fuel tank holds 12 gallons and can travel 350 statute miles on one tank of fuel, what is the boat’s efficiency? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter range and capacity: 350 [Conv] [Dist] RANG 350. MI S 12 [Conv] [Speed] GAL 12. 3. Find efficiency [Conv] [Time] MPG 29.
Rate Function The rate function allows you to multiply a dimensional value by a “per unit” rate. The result is displayed as a total cost value instead of a dimensional value. Rate Calculation Example 1 A chartering service charges 10 dollars per hour. What is the charge for 12 hours, 23 minutes, and 30 seconds of service? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2.
Rate Calculation Example 2 Your friend has agreed to take you 250 nautical miles up the coast. If you pay him 25¢ a nautical mile, how much will the trip cost? Steps/Keystrokes Display 1. Clear calculator: [On/C] [On/C] 0. 2. Enter distance and multiply by rate: 250 [Miles] [x] 0.25 [Conv] [•] 250. N MI 62.
Using the Stopwatch/Timer NautiCalc Plus includes a stopwatch timer with buzzer and split/ lap functions. When activated, the timer can count up from zero or down from an entered time. The display accuracy can be set to show zero to two decimal points (00:00:00, 00:00:00.0, 00:00:00.00). While the timer is counting, a clock symbol (❹) flashes at the bottom of the display. A star (.) symbol appears if the timer buzzer is set to “On.” Timer values can be used in calculations or stored in Memory.
Split/Lap Function Use the [Prefs] key to determine whether the [S/Lap] key acts like a split function or a lap function. If the “S/LP” preference is set to “Split,” the total time elapsed from the start of the timer to the moment the [S/Lap] key is pressed displays. If set to “Lap,” the time elapsed be-tween presses displays. For example, the first press of [S/Lap] displays the time elapsed from the timer’s start point to the time [S/Lap] is pressed. The second press of [S/Lap] continues the time display.
Working with Timer Values Steps/Keystrokes Display 1. Start the timer for a 10–minute count down: [Timer] 1000 [Timer] TMR 0:10:00 HR MIN SEC Note: “GO” appears count–down begins. as the 2. Freeze the timer display at 8:39: [S/Lap] 0:08:39 SPLT HR MIN SEC 3. Store the value in Memory register 1: [Stor] 1 0:08:39 M–1 HR MIN SEC 4. Redisplay timer countdown and freeze the timer at 7:39: [Timer] [S/Lap] SPLT 0:07:39 HR MIN SEC 5.
Paperless Tape Feature The “Paperless Tape” feature is used to display the last 10 entries. While in this mode, the display looks similar to this: 04 + 100.00 ➩➩ A ➩ B C A = The sequence number of the entry B = The math operator (+, –, x, ÷, %) C = The entered or calculated value As you scroll through the entries, you will see the designators TTL and SUB. SUB indicates a subtotal. TTL indicates the final total (all values and subtotals combined).
How to Use the Paperless Tape Step/Keystrokes Display 1. Clear calculator and enter a string of numbers: [On/C] [On/C] 4 [Hr] [+] 0. 4:00:00 HR MIN SEC 5 [Hr] [+] 6 [Hr] [+] 7 [Hr] [=] 9:00:00 15:00:00 22:00:00 HR MIN SEC HR MIN SEC HR MIN SEC 2. Access the Tape function: [Rcl] [=] TTL = 22:00:00 HR MIN SEC 3.
5. Exit the Paperless Tape and add to the string: [=] TTL = 22: 00:00 [+] 2 [Hr] [=] 24: 00:00 HR MIN SEC HR MIN SEC *Note: At this point, you may press any key except [Off], [+] or [–].When pressing a key to exit the tape, the last value entered is displayed. How to Clear the Paperless Tape 1. To clear the paperless tape, do one of the following: ◗ Clear calculator: [On/C] [On/C] ◗ Perform an All Clear: [Conv] [x] ◗ Press [ =] to start a new math string ◗ Press the [Off] key.
APPENDIX Accuracy/Display Each calculation is carried out internally to 10 digits and is rounded to an 8–digit standard display. A 5/4 rounding technique is used to add 1 to the least significant digit in the display if the next non–displayed digit is 5 or more. If this digit is less than 5, no rounding occurs. Errors An error will occur: 1) when an incorrect entry is made. 2) if the answer is beyond the range of the calculator. 3) if you enter a mathematical impossibility such as division by zero.
Battery Information The calculator is powered by a single 3 Volt Lithium CR–2032 battery. This should last up to 1,000 hours of actual use. If the display becomes dim or erratic, replace the battery. ! WARNING Because the batteries contain hazardous chemicals, please use caution when disposing of old batteries. Keep them away from animals and young children. Auto–Shutoff The calculator is designed to shut itself off after about 10 minutes of non–use. Values shown on the display will be cleared.
Notes 46 – NautiCalc Plus™
Notes User’s Guide – 47
WARRANTY REPAIR SERVICE — USA Calculated Industries, Inc. (“CII”) warrants this product against defects in materials and workmanship for a period of one (1) year from the date of original consumer purchase in the U.S. If a defect exists during the warranty period, CII at its option will either repair (using new or remanufactured parts) or replace (with a new or remanufactured unit) the product at no charge.
tiguous 48 states, please call CII for return shipping costs.) A repaired or replacement product assumes the remaining warranty of the original product or 90 days, whichever is longer. NON–WARRANTY REPAIR SERVICE — USA Non–warranty repair covers service beyond the warranty period or service requested due to damage resulting from misuse or abuse. Contact the CII Authorized Service Provider listed on the back page of the User’s Guide to obtain current product repair information and charges.
DISCLAIMER CII MAKES NO WARRANTY OR REPRESENTA- TION, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THE PRODUCT’S QUALITY, PERFORMANCE, MERCHAN-TABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. AS A RESULT, THIS PRODUCT, INCLUDING BUT NOT LIMITED TO, KEYSTROKE PROCEDURES, MATHEMATICAL ACCURACY AND PREPROGRAMMED MATERIAL, IS SOLD “AS IS,” AND YOU THE PURCHASER ASSUME THE ENTIRE RISK AS TO ITS QUALITY AND PERFORMANCE.
FCC Class B This equipment has been certified to comply with the limits for a Class B computing device, pursuant to Subpart J of Part 15 of FCC rules. LOOKING FOR NEW IDEAS Calculated Industries, a leading manufacturer of special function calculators and digital measuring instruments, is always looking for new product ideas in these areas. If you have one, or any suggestions for improvements to this product or its User’s Guide, please call or write CII’s Product Development Department. Thank you.
Calculated Industries ® is a registered trademark and NautiCalc Plus ™ is a trademark of Calculated Industries, Inc. A LL R IGHTS R ESERVED Designed in the United States of America by Calculated Industries, Inc. © 1998 Calculated Industries, Inc. U.S.
