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Руководство пользователя CITIZEN SR-281 / SR-282. Основные функции, характеристики и условия эксплуатации изложены на 33 страницах документа в pdf формате.
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SR-281 / SR-282 Scientific Calculator General Guide....................................................................................2 Turning on or off ..............................................................................2 Battery replacement.........................................................................2 Auto power-off function....................................................................2 Reset operation ...............................................................................2 Contrast adjustment.........................................................................3 Display readout................................................................................3 Before Starting Calculation ..............................................................4 Using " MODE " keys.......................................................................4 Using " 2nd " Keys...........................................................................4 Corrections ......................................................................................4 Undo function ..................................................................................4 Replay function................................................................................5 Memory calculation..........................................................................5 Order of operations..........................................................................6 Accuracy and Capacity....................................................................7 Error conditions ...............................................................................9 Basic Calculations ............................................................................9 Arithmetic calculation.....................................................................10 Parentheses calculations...............................................................10 Percentage calculation .................................................................. 11 Display notations ........................................................................... 11 Scientific Functional Calculations.................................................13 Logarithms and Antilogarithms ......................................................13 Fraction calculation .......................................................................13 Angle unit conversions ..................................................................14 Sexagesimal - Decimal transformation........................................15 Trigonometric / Inverse-Tri. functions ............................................15 Hyperbolic / Inverse-Hyp. functions...............................................16 Coordinates transformation ...........................................................16 Probability......................................................................................17 y 3 2 Other functions ( 1/x, , 3 , X , x , x , x , INT, FRAC )........18 Unit Conversion.............................................................................19 Physics constants..........................................................................19 Base–n calculations........................................................................24 Bases conversions ........................................................................25 Block Function...............................................................................25 Basic arithmetic operations for bases............................................27 Negative expressions ....................................................................27 Logical operation...........................................................................27 Statistical Calculations...................................................................27 Entering data .................................................................................28 -E1- File name : SR17E-E.doc Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
Displaying results ..........................................................................28 Deleting data .................................................................................31 Editing data....................................................................................32 FULL message...............................................................................32 Complex Calculations.....................................................................33 General Guide Turning on or off To turn the calculator on, press [ ON/C ] ; To turn the calculator off, press [ 2nd ] [ OFF ]. Battery replacement SR-281 is powered by two alkaline batteries (GP76A or LR44). SR-282 is powered two AA-size ( UM-3 ) batteries. If the display becomes dim and difficult to read, the batteries should be replaced as soon as possible. To replace batteries : 1) Slide the battery compartment cover in the direction indicated by the arrow and remove it. 2) Remove the old batteries and install new ones with polarity in correct directions, then replace the battery compartment cover and press [ ON/C ]. Auto power-off function This calculator automatically turns it off when not operated for approximately 6~9 minutes. It can be reactivated by pressing [ ON/C ] key and the display, memory, settings are retained. Reset operation If the calculator is on but you get unexpected results, press [ MODE ] [ 4 ] ( RESET ) in sequence. A message appears on the display to confirm whether you want to reset the calculator and clear memory contents. RESET : N Y Move the cursor to " Y " by [ ], then press [ ] to clear all variables, pending operations, statistical data, answers, all previous entries, and memory; To cancel the reset operation without clearing the calculator, please choose " N ". If the calculator is lock and further key operations becomes impossible, please press [ 0 ] [ CE ] at the same time to release the condition. It will return all settings to default settings. -E2- File name : SR17E-E.doc Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
Contrast adjustment Pressing the [ – ] or [ + ] following [ MODE ] key can make the contrast of the screen lighter or darker. Holding either key down will make the display become respectively lighter or darker. Display readout The display comprises two lines and indicators. The upper line is a dot display up to 128 characters. The lower line is capable of displaying a result of up to 12 digits, as well as 2-digits positive or negative exponent. When formulas are input and executed the calculation by [ ], they are displayed on the upper line, and then results are shown on the lower line. The following indictors appear on the display to indicate you the current status of the calculator. Indicator Meaning M Running memory – Result is negative E Error STO Storing variable mode is active RCL Recalling variable mode is active 2nd 2nd set of function keys are active HYP Hyperbolic-trig function will be calculated ENG Engineering symbol notation CPLX Complex number mode is active CONST Display physics constants DEGRAD Angle mode : DEGrees, GRADs, or RADs BIN Binary base OCT Octal base HEX Hexadecimal base ( ) Open parentheses TAB Number of decimal places displayed is fixed STAT Statistics mode is active REG Regression mode is active EDIT Statistics data is being edited CPK CPK : Process capability CP : Precision capability USL Set upper specification limit LSL Setting lower specification limit i Imaginary part Allow to use undo function -E3- File name : SR17E-E.doc Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1