MS-100TER - Calculator CASIO - Free user manual and instructions

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CASIO MS-100TER - Calculator
📄 83 pages English EN Download 💬 AI Question 11 questions ⚙️ Specs
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Product Type Desktop Calculator
Brand CASIO
Model MS-100TER
Power Supply Battery and solar (LR44 battery)
Display 10-digit LCD
Dimensions (approx.) 10 x 6 x 1 cm
Weight (approx.) 100 g
Basic arithmetic functions Addition, subtraction, multiplication, division
Constant calculations Yes (K indicator)
Independent memory Yes (M+, M-, MR, MC)
Grand total memory Yes (GT, GT+, GT-) for models D-20TER/DF-120TER/JF-120TER
Tax calculation Yes (programmable rate, default 5%)
Currency conversion Yes (Euro/FRF compliant with CE)
Rounding Selectable mode (rounding, truncation, etc.)
Number of significant digits 11 (for conversion calculations)
Automatic power-off function Yes (automatic shut-off)
Maintenance and cleaning Clean with a soft dry cloth
Operating temperature 0°C to 40°C
Compliance Regulation (EC) No 1103/97
Included accessories Battery, user manual

Frequently Asked Questions - MS-100TER CASIO

How to perform a constant calculation?
Enter the constant number, then press the desired operator twice (+, -, ×, ÷). The K indicator appears. Then enter the second number and press = for each calculation.
How to use independent memory?
Press M+ to add the displayed number to memory, M- to subtract it, MR to recall the content, and MC to clear the memory.
How to calculate the price including tax?
First set the tax rate (e.g., 5%) using the tax function. Enter the price excluding tax, then press the TAX+ key to get the price including tax.
How to convert francs to euros?
Press the currency conversion key. Enter the amount in Francs, then press the FRF→€ key (or similar) to get the amount in Euros.
What to do if the display flashes or shows 'E'?
This indicates an error (overflow or division by zero). Press CE or AC to clear the error and start again.
How to clear the grand total memory?
Press the GT key (or GT-) to recall the memory, then press AC or a specific clear key to empty it. Note that this memory is cleared when the automatic power-off occurs.
Changing the calculator battery?
Remove the back cover with a screwdriver, replace the LR44 battery (or equivalent) respecting polarity. Close and reset if necessary.
How to set the rounding mode?
Use the rounding selector (located on the side or back). Common modes are 5/4 (round), ROUND UP (round up), ROUND DOWN (truncation). Refer to the manual for the exact model.
The calculator does not turn on, what to do?
Check that the battery is correctly installed. Expose the solar panel to light. If the problem persists, replace the battery.
Can I perform currency calculations other than euro?
This model is specifically designed for Euro/FRF conversion. It is not possible to program other exchange rates. Use memory for manual conversions.

User questions about MS-100TER CASIO

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How to set up euro/franc conversion on the CASIO MS-100TER?
Frequently Asked Questions - 07/01/2026
Response Notice-Facile

The CASIO MS-100TER is specifically designed to convert euros to French francs and vice versa. The exchange rate is preprogrammed into the calculator and cannot be changed.

Conversion procedure

  • Press the currency conversion key
  • Enter the amount to convert (in francs or euros)
  • Press the FRF→€ key to convert francs to euros, or the corresponding key for the reverse

Programmed exchange rate: 1 € = 6.55957 FRF (official historical exchange rate)

Important: this calculator is certified compliant with CE standards for this conversion. It is not possible to program other exchange rates or convert to other currencies with this model.

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Download the instructions for your Calculator in PDF format for free! Find your manual MS-100TER - CASIO and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. MS-100TER by CASIO.

USER MANUAL MS-100TER CASIO

1/General Guide 2 2/ Correcting Input Errors 3 3/Power Supply 4 4/Important Precautions 5 5/ Specifications 6 6/Euro Currency Conversion 7 7/Tax Calculations 9 8/Example Calculations 137 9/Currency Conversion Examples 165 10/Tax Calculation Examples (Tax Rate = 5% 181

IMPORTANT!

  • Please keep your manual and all information handy for future reference.
  • The switches and keys available on your calculator depend on its model number. Be sure to check the calculator itself to see if explanations in this User's Guide apply to your calculator model.

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CASIO MS-100TER - IMPORTANT! - 1

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1/General Guide

About the Selectors

fCUTS4 Rounding Selector (D-20TER/DF-120TER/JF-120TER)

Specifies the rounding system.

F: Floating decimal point system, which displays the value without rounding.

CUT: Cuts off the decimal to the specified* number of places.

5/4: Rounds off the decimal to the specified* number of places.

  • Use the Decimal Place Selector to specify the number of decimal places.

43219 ADO Decmal Place Selector D-20TER/DF-120TER/JF-120TER)

Specifies the number of decimal places for rounding. Note that the Decimal Place Selector is valid whenever the Rounding Selector is in any position other than F.

4, 3, 2, 1, 0: Number of decimal places for the CUT and 5/4 settings of the Rounding Selector.

ADD2: The "Add Mode" automatically adds a decimal point and two decimal places to all values, even if you don't input a decimal point. This mode is very useful when performing calculations in dollars or other monetary systems that require two decimal places. Two decimal places are not added in this mode if you press the [STAR] key while inputting a value, or for any operation other than addition and subtraction.

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CASIO MS-100TER - About the Selectors - 1

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About the Display

:3-digit separator (apostrophe) - : Negative value indicator GT: Grand total memory indicator (D-20TER/DF-120TER/JF-120TER) M : Independent memory indicator E : Error indicator K : Constant calculation indicator

Euro : Euro currency indicator Local : Local currency indicator RATE : Conversion rate indicator TAX : Tax amount indicator TAX+ : Price-plus-tax indicator TAX- : Price-less-tax indicator + - × ÷ : Arithmetic operation indicators

CASIO MS-100TER - About the Display - 1

2/Correcting Input Errors

To completely clear a value you have just input, press C. - To shift a displayed value digit-by-digit to the right, press [RIGHT] until you get to the digit you want to re-input from. (MS-88TER) - If you press the wrong arithmetic operation key (+, -, ×, ÷), simply press the correct key before inputting anything else.

Clearing Calculations

  • To clear the calculator except for the independent memory, press AC.
  • To clear the independent memory only, press MRC twice.

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CASIO MS-100TER - Clearing Calculations - 1

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■ Error Indicator

If the error indicator "E" appears on the display, press C to clear the error and continue with the calculation, or AC to clear the entire calculation.

3/Power Supply

The Two-Way Power System of this calculator uses a solar cell, in addition to one LR44 or LR54 (LR1130) button type battery. Unlike calculators equipped with a solar cell only, you can use this calculator under virtually any lighting conditions, as long as there is enough light for you to read the display.

Battery Replacement

Do not try to replace the battery yourself. Have it replaced by an authorized CASIO dealer or service center.

If the display becomes dim and difficult to read, or if nothing appears on the display when you press AC (especially when lighting is dim), you probably need to have the battery replaced.

  • A dead battery can leak and damage the calculator if left in the battery compartment for long periods.

CASIO MS-100TER - Battery Replacement - 1

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CASIO MS-100TER - Battery Replacement - 3

CASIO MS-100TER - Battery Replacement - 4

  • The battery that comes with this unit discharges slightly during shipment and storage. Because of this, it may require replacement sooner than the normal expected battery life.

Auto Power Off Function

This calculator is not equipped with an OFF switch. Instead, it switches power off automatically about six minutes after the last key operation is performed. To restore power, press AC. - When you press AC, the independent memory contents are not cleared.

4/Important Precautions

CASIO MS-100TER - 4/Important Precautions - 1

  • Avoid dropping the calculator and otherwise subjecting it to severe impact.
  • Never try to take the calculator apart.
  • Wipe the unit with a soft, dry cloth to clean it.
  • The contents of these instructions are subject to change without notice.
  • CASIO COMPUTER CO., LTD. assumes no responsibility for any loss or claims by third parties which may arise from the use of this product.

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5/Specifications

Power Supply:

D-20TER/DF-120TER/JF-120TER:

Two-Way Power System, with solar cell and one button type battery (LR44)

MS-88TER/MS-100TER/MS-120TER/SL-310TER/SL-320TER:

Two-Way Power System, with solar cell and one button type battery (LR54 (LR1130))

Battery Life: Approximately 3 years (1 hour operation per day)

Operating Temperature: 0°C to 40°C (32°F to 104°F)

Dimensions:

D-20TER: 32(H) × 151(W) × 158(D) mm (1 1/4"H × 5 15/16"W × 6 1/4"D)

DF-120TER: 36(H) × 126(W) × 175(D) mm (1 7/16"H × 4 15/16"W × 6 7/8"D)

JF-120TER: 29.3(H) × 107(W) × 175.5(D) mm (1 1/8"H × 4 3/16"W × 6 15/16"D)

MS-88TER/MS-100TER/MS-120TER:

30.7(H) × 103(W) × 145(D) mm (1 3/16"H × 4 1/16"W × 5 11/16"D)

SL-310TER/SL-320TER:

7.5 (H) × 70 (W) × 118.5 (D) mm (5/16" H × 2 3/4" W × 4 11/16" D)

CASIO MS-100TER - Dimensions: - 1

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CASIO MS-100TER - Dimensions: - 3

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Weight:

D-20TER/DF-120TER:

Approximately 195 g (6.9 oz) (including the battery)

JF-120TER: Approximately 165 g (5.8 oz) (including the battery)

MS-88TER/MS-100TER/MS-120TER:

Approximately 120 g (4.2 oz) (including the battery)

SL-310TER/SL-320TER:

Approximately 55 g (1.9 oz) (including the battery)

CASIO MS-100TER - Weight: - 1

6/Euro Currency Conversion

  • Pressing AC to clear the calculation memory does not clear the conversion rate setting.

Setting a Conversion Rate

Example: To set the conversion rate for your local currency as 1 euro = 1.95583 DM (Deutsche marks).

  1. Press AC
  2. Hold down Euro rate set for about two seconds and the currently set rate appears on the display.

CASIO MS-100TER - Setting a Conversion Rate - 1

CASIO MS-100TER - Setting a Conversion Rate - 2

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CASIO MS-100TER - Setting a Conversion Rate - 4

  1. Input the conversion rate (1.95583) and then press EURO RATE SET to store it in memory.*

CASIO MS-100TER - Setting a Conversion Rate - 5

  • For rates of 1 or greater, you can input up to six digits. For rates less than 1 you can input up to 8, 10 or 12 digits, including 0 for the integer digit and leading zeros (though only six significant digits, counted from the left and starting with the first non-zero digit, can be specified).

Examples: 0.123456, 0.0123456, 0.0012345 (MS-88TER)

  • You can check the currently set rate at any time by pressing AC and then EURO.
  • The rate is retained in memory even when calculator power is turned off by operation of Auto Power Off.

CASIO MS-100TER - Setting a Conversion Rate - 6

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CASIO MS-100TER - Setting a Conversion Rate - 8

CASIO MS-100TER - Setting a Conversion Rate - 9

7/Tax Calculations

  • Pressing AC to clear the calculation memory does not clear independent memory or the tax rate setting.

Setting a Tax Rate

Example: Tax rate = 5%

(about two seconds) Current rate settingCASIO MS-100TER - Setting a Tax Rate - 1

CASIO MS-100TER - Setting a Tax Rate - 2

(You can input a value up to 6 digits long.)

CASIO MS-100TER - Setting a Tax Rate - 3

CASIO MS-100TER - Setting a Tax Rate - 4

CASIO MS-100TER - Setting a Tax Rate - 5

(Stores rate and completes operation.)

  • You can check the currently set rate at any time by pressing AC and then the RATE key.

CASIO MS-100TER - Setting a Tax Rate - 6

CASIO MS-100TER - Setting a Tax Rate - 7

  • The rate is retained in memory even when calculator power is turned off by operation of Auto Power Off.

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CASIO MS-100TER - Setting a Tax Rate - 11

CASIO MS-100TER - Setting a Tax Rate - 12

Input the number you want to use as a constant, and then press one of the arithmetic keys twice. This causes the "K" indicator to appear on the display, indicating constant calculations.

Constant calculations

M+ Adds the displayed value to independent memory. M- Subtracts the displayed value from independent memory. MRC Recalls and clears independent memory.

  • Add the calculated result to grand total memory. Recalls the value stored (accumulated) in grand total memory. AC Clears the grand total memory.
  • Grand total memory contents are cleared when power is switched off by the Auto Power Off function.

■ Grand total memory (D-20TER/DF-120TER/JF-120TER)

7.8 × 89 = 694.2“F”MRCMRCAC 7.8 M+ X 89GT M694.2
4.56 × 23 = 104.88
12.36799.08

CASIO MS-100TER - ■ Grand total memory (D-20TER/DF-120TER/JF-120TER) - 1

CASIO MS-100TER - ■ Grand total memory (D-20TER/DF-120TER/JF-120TER) - 2

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CASIO MS-100TER - ■ Grand total memory (D-20TER/DF-120TER/JF-120TER) - 4

CASIO MS-100TER - ■ Grand total memory (D-20TER/DF-120TER/JF-120TER) - 5

CASIO MS-100TER - ■ Grand total memory (D-20TER/DF-120TER/JF-120TER) - 6

CASIO MS-100TER - ■ Grand total memory (D-20TER/DF-120TER/JF-120TER) - 7

Complies with (CE) Rule No. 1103/97

The number of significant digits of this product is 11. - Errors may be generated in currency conversion calculations that produce results greater than the values shown below.

€1.00 =€ → Local*Local* → €
DEM1.95583511,291,881.19 → 999,999,999.991,955,830,000.00 → 1,000,000,000.00
FRF6.55957152,449,017.23 → 999,999,999.956,559,570,000.00 → 1,000,000,000.00
ITL1936.2751,645,689.90 → 99,999,999.983999,999,999.99 → 516,456,899.09
ESP166.386601,012,104.38 → 99,999,999.99166,386,000,000 → 1,000,000,000.00
NLG2.20371453,780,216.08 → 999,999,999.982,203,710,000.00 → 1,000,000,000.00
BEF40.33992,478,935,247.71 → 99,999,999.9940,339,900,000 → 1,000,000,000.00
PTE200.482498,797,897.06 → 99,999,999.998200,482,000,000 → 1,000,000,000.00
ATS13.760372,672,834.16 → 999,999,999.8913,760,300,000.00 → 1,000,000,000.00
FIM5.94573168,187,926.46 → 999,999,999.995,945,730,000.00 → 1,000,000,000.00
IEP0.7875641,269,738,078.42 → 999,999,999.99787,564,000.00 → 1,000,000,000.00
LUF40.33992,478,935,247.71 → 99,999,999.9940,339,900,000 → 1,000,000,000.00
  • Local Currency/Divisa local/Devise locale/Örtliche Währung/Valuta locale/Lokal valuta/ Plaatselijke valuta/Lokal valuta/Paikallinen valutta/Lokal valuta/Moeda local/Mecthar baniota/Helyi valuta/Mistni mèna/Valuta krajowa

CASIO MS-100TER - Complies with (CE) Rule No. 1103/97 - 1

CASIO MS-100TER - Complies with (CE) Rule No. 1103/97 - 2

CASIO MS-100TER - Complies with (CE) Rule No. 1103/97 - 3

MS-100TER/MS-120TER/SL-310TER/SL-320TER

Conforms to Regulation (EC) No. 1103/97

  1. Original costs = 3.00,5.00, $8.00

Calculate the total cost, price-plus-tax, and tax amount.

  1. Original costs = 3.00,5.00, $8.00
  1. Original costs = 3.00,5.00, $8.00
  1. Original costs = 3.00,5.00, $8.00
  1. Original costs = 3.00,5.00, $8.00
  1. Price-plus-tax = $100

Calculate price-less-tax and tax amount.

  1. Price including tax = $100

4. Taxable item = 30.00 Non-taxable item =2

Calculate price-plus-tax for taxable item and total of taxable and non-taxable items.

4. Taxable item = $30.00

Non-taxable item = $20.00

4. Taxable item = $30.00

Tax-exempt item = $20.00

(Total of taxable item + non-taxable item)

First, calculate the price-plus-tax value of the taxable item, and then add the non-taxable item.

(Total of taxable item + non-taxable item)

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Product information

Brand : CASIO

Model : MS-100TER

Category : Calculator