Citizen SDC-3920 * POWER SUPPLY, * KEY INDEX, * OPERATION EXAMPLES, English, English, English

* POWER SUPPLY

English

CITIZEN model SDC-3920 is a dual-powered (high power solar + back-up battery) calculator operative under any lighting conditions.

-Auto power-off function-

The calculator switches the power off automatically if there has been no key entry for about 10 minutes.

-Battery change-

Remove the screw and the battery cover. Install a new battery with the + symbol facing upward. After changing, use a pointed object to press the RESET hole near the battery. Replace the battery cover and secure the screw.

* KEY INDEX			English
[CEON/ C] : Power on / Clear entry / Clear key
[M+] : Memory plus key		[M–] : Memory minus key
[MRC] : Memory recall /clear key		[MU] : Price mark-up / down key
[+/–] : ± Sign change key		[SET] : Tax rate setting key
TAX I	[−RECALLTAX] : Price without tax key / To recall first or second tax rate
	when pressing [SET] and [–TAX] keys
TAX I I	STORE
	[+TAX ] : Price with tax key / To store first or second tax rate
	when pressing [SET] and [+TAX] keys
The Signs Of The Display Mean The Following :
MEMORY : Memory		TAX : Amount of tax
– : Minus (or negative)		–TAX : Price excluding tax
ERROR : Overflow-error		+TAX : Price including tax
SET : Tax rate setting		% : Tax rate stored and recalled
TAXI : The 1st tax rate calculation		TAXII : The 2nd tax rate calculation

* OPERATION EXAMPLES			English

1.Calculation Examples

Before performing each calculation, press the [CEON/ C] key two times.

Example

Key operation

Display

2 x 3 = 6

2 [x] 2 [CEON/ C] 3 [=]

6 + 4 – 7.5 = 2.5

6 [+] 4 [–] 7.5 [=]

2.5

5 x 3 ÷ 0.2 = 75

5 [x] 3 [÷] 0.2 [=]

75.

300 x 27% = 81

300 [x] 27 [%]

81.

11.2

x 100% = 20%

11.2 [÷] 56 [%]

20.

300 + (300 x 40%) = 420

300 [+] 40 [%]

420.

300 – (300 x 40%) = 180

300 [–] 40 [%]

180.

54 = 625

5 [x] [=] [=] [=]

625.

1 / 2 = 0.5

2 [÷] [=]

0.5

= 0.0625

2 [x] 3 [+] 10 [÷] [=]

0.0625

(2 x 3 + 10)

2.Memory Calculation

[MRC] [MRC] [CEON/ C]

125.

(25 x 5) – (84 ÷ 3)

MEMORY

+ (68 + 17) = 182

25 [x] 5 [M+]

84 [÷] 3 [M–]

MEMORY

28.

68 [+] 17 [M+]

MEMORY

85.

[MRC]

MEMORY

182.

(52 – 35) ÷ (14 – 3 x 2)

[MRC] [CEON/ C] 14 [M+] 3 [x] 2

= 2.125

[M–] 52 [–] 35 [÷] [MRC] [=]

MEMORY

2.125

135 x (12 + 14) = 3510

[MRC] [MRC] [CEON/ C]12 [+] 14

3'510.

(12 + 14) ÷ 5 = 5.2

[M+]135 [x] [MRC] [=]

MEMORY

[MRC] [÷] 5 [=]

MEMORY

5.2

3.Constant Calculation

2 + 3 = 5

2 [+] 3 [=]

4 + 3 = 7

4 [=]

3 x 4 = 12

3 [x] 4 [=]

12.

3 x 6 = 18

6 [=]

18.

4.Overflow Error Clear

1234567890 x 10000

1234567890

1'234'567'890.

= 1'234.567890 x 1010

[x] 10000 [=]

ERROR

1'234.567890

[CEON/ C] [CEON/ C]

5.Price Mark-Up & Down Calculation

2000+(P x 20%)=P

2000 [÷] 20 [MU]

2'500.

2000

=2'500

1- 20%

[MU]

500.

2500–2000 = 500

2000–(P x 20%)=P

2000 [÷] 20 [+/–] [MU]

1'666.666666

2000

=1'666.66

1+ 20%

18000 - 15000

x100%

18000 [–] 15000 [MU]

20.

15000

= 20%

6.TwoTax Rate Functions

●This calculator offers two tax rate settings : TAX I, TAX II.

●TAX I and TAX II are two independent tax rate functions, the calculation of the first one does not affect the second.

●The operation illustrated below applies both to TAX I and TAX II.

100+TAX(3%)	3 [SET] [+TAX]	TAXII		3.	%
= 103	100 [+TAX]	TAXII	+TAX	103.
Tax amount = 3	[+TAX]	TAXII	TAX	3.
* 3 = Tax amount	103 = Tax inclusive value			3.
206–TAX(3%)	[CEON/ C] [SET] [–TAX]	TAXII		3.	%
= 200	206 [–TAX]	TAXII	–TAX	200.
Tax amount = 6	[–TAX]	TAXII	TAX	6.
* 6 = Tax amount	200 = Tax exclusive value