Manuale Lexibook PLC241 Calcolatrice

Manuale

PLC241IM PLC241IM

Copyright Lexibook 2006

1

Copyright Lexibook 2006

2

English

English

Congratulations! You have just acquired the PLC241 Semi Desktop Calculator from Lexibook®.

This calculator will allow you to perform standard calculations as well as advanced functions such as

percentage, memory, and tax calculation.

In order to get the most out of your PLC241 calculator, read this instruction manual carefully and keep it in

a safe place for future reference.

The "00" key allows you to quickly enter hundreds. Example: Press "5", then the "00" key, and the

calculator will display "500".

The "+/-" key allows you to change a positive number to negative, or vice versa. The " - " sign appears to the

left of the screen when the number displayed is negative.

If you repeatedly press the calculation signs (+, -, x, ˜), the calculation will be repeated. For example, if you

enter "20 + +", the calculator will display "40", which is the result of 20+20.

The decimal point selector allows you to select from 0, 2, 4 decimal places, or a floating decimal place

(position F), or an automatic conversion to 2 decimal places (position A).

The round down/up selector allows you to choose to round down to the nearest lower unit (position " "),

round up to the nearest higher unit (position " "), or a result automatically rounded up/down (position "5/4").

To correct a number, press the " " key until you reach the number you want to enter. To completely delete

a number you have just entered, press "C/CE" once.

The AC key clears all entries and the memory. Also use the AC key to turn on your calculator.

The key allows you to get the square root of the number you entered.

The % key allows you to perform operations with percentage values.

M+/M-/MRC - Memory operation keys

+TAX/-TAX/RATE - these keys are used to perform operations using a tax rate set by the user.

Before using this calculator for the first time, remove the static label from the LCD screen.

1. Basic calculations

Introduction

Keys

Calculations

To calculate Press Display

23 + 203 - 56 = 23 + 203 - 56 = 170

562 x (38-96) = 38 - 96 x 562 = -32596

(23 x 6 + 78) ÷ 2.3 - 89 = 23 x 6 + 78 ÷ 2.3 - 89= 4.9130434782

1234567 x 9876543 = 1234567 x 9876543 = E 12.19325406118

C/CE 12.19325406118

C/CE or AC 0

To save a number in the memory Press Display

2 x 3 = 6 2 x 3 "M+" M 6

-) 3 x 4 = 12 3 x 4 "M-" M 12

+) 4 x 5 = 20 4 x 5 "M+" M 20

14 MRC M 14

MRC 14

To add the tax Press Display

Amount excl. Tax: €20 Tax: 6% 20 " TAX + " 21.2

Amount incl. Tax= €21.2

To deduct the tax

Amount incl. Tax: €150 Tax: 20% 150 " TAX - " 125

Amount excl. Tax= €125

To calculate Press Display

20€ + 6% = 21.2€ 20 + 6 % 21.2

150€ minus 20% = 120€ 150 - 20 % 120

2. Percentage calculations

3. Calculations using memory

Before saving a new value to the memory, the content must first be deleted by pressing the 'MRC' key twice

and then pressing the 'AC' key to delete all previous calculations.

To add a value to the memory, enter the chosen number or calculation and then press the '

M+' key. The

result of the calculation is worked out and, if applicable, added to the value in the memory.

When 'M' is displayed, it indicates that a value is stored in the memory.

To deduct a value from the memory, enter the chosen number or calculation, and then press the "

M-" key.

The number entered (or the result of the calculation) is deducted from the value stored in the memory. In

order to display the value stored in the memory press "MRC". To delete the memory content, press twice on

"MRC", the caption "M" will disappear.

4. Tax calculations

Setting the tax rate:

Key in the tax rate you wish to set. Then, press the "RATE" key, followed by "+TAX" to confirm. Follow the

same procedure if you wish to change the rate later on.

Examples:

Important

The calculator will display an error message "ERROR" in the following cases.

- When dividing by zero

- In calculations where the result exceeds the capacity of the calculator.

In order to delete the error message and any other calculations, press "AC".

Valutazione

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