Filter
Top Products
File name: D494_IB_English_081919.doc Date : 2008/9/19
Size : 250x72mm( : 125x72mm)
* POWER SUPPLY English
CITIZEN model SDC-640II 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 6 minutes.
-Battery change-
If the back-up battery needs to be changed, open the lower cabinet
to remove the old battery and insert a new battery in the indicated
polarity. After changing battery, please use a metal, elliptical object
to press the RESET pad on printed circuit board.
* KEY INDEX English
[
C
ON
] : Power on / Clear key. [CE] : Clear entry.
[00t0] : Shift-back key. [M+] : Memory plus key.
[M–] : Memory minus key. [+ / –] : ±Sign change key
[MR] : Memory recall key [MC] : Memory clear key.
[MU] : Price Mark-up/down key
[MII+] [MII–] [MII
R
C
] : The Second Memory Key
Decimal place selection switch
– F –
– 0 – 2 – 3 –
– A –
Floating decimal mode
Fixed decimal mode
ADD–mode automatically enters the monetary
decimal in addition and subtraction calculations
5/4
Round-up / Round-off / Round-down switch
The Signs Of The Display Mean The Following:
MEMORY:The first memory loaded. –MINUS:Minus ( or negative)
MEMORYII:The second memory loaded. ERROR:Overflow-error.
* OPERATION EXAMPLES English
1.Calculation Examples
Before performing each calculation, press the [
C
ON
] key.
Example Key operation Display
1 x 2 x 3 = 6
[
C
ON
]
1 [x] 2 [x] 3 [=]
[
C
ON
]
0.
6.
0.
2 x 3 = 6 2 [x] 2 [CE] 3 [=] 6.
5/4
2 + 4 + 6 = 12
2 [+] 3 [+] 6 [
C
ON
]
2 [+] 4 [+] 6 [=]
0.
12.
1234 x 100
= 123,400
12345 [00t0]
[x] 100 [=]
1'234
123'400
5 x 3 ÷ 0.2 = 75 5 [x] 3 [÷] 0.2 [=]
75.
300 x 27% = 81 300 [x] 27 [%] 81.
56
11.2
x 100% = 20%
11.2 [÷] 56 [%]
20.
30 + (30 x 40%) = 42 30 [+] 40 [%] 42.
30 – (30 x 40%) = 18 30 [–] 40 [%] 18.
5
4
= 625 5 [x] [=] [=] [=] 625.
$14.90 + $0.35 – $1.45
+ $12.05 = $25.85
1490 [+] 35 [–] 145 [+]
1205 [=] 25.85
1 / 30 = 0.0333….
30 [÷] [=]
0.03
5/4
4) - 5 x (2
1
= 0.166….
2 [x] 5 [–] 4 [÷] [=]
0.16
2.Memory Calculation
[
C
ON
]
0.
12 [x] 4 [M+] 20 [
÷
] 2 [M–]
MEMORY
10.
[MR]
MEMORY
38.
(12 x 4) –
(20÷ 2) = 38
[MC] [CE]
0.
15 [x] 2 [M+] 20 [x] 3 [M+]
MEMORY
60.
25 [x] 4 [M+]
MEMORY
100.
[MR]
MEMORY
190.
10 [
÷
] 5 [M
II
+] 4 [x] 2 [M
II
+]
MEMORY MEMORY II
8.
[MII
R
C
]
MEMORY MEMORY II
10.
[MR] [÷]
MEMORY MEMORY II
190.
[MII
R
C
]
MEMORY MEMORY II
10.
[=]
MEMORY MEMORY II
19.
5/4
15 x 2 = 30
20 x 3 = 60
25 x 4 = 100
(total A = 190)
10 ÷ 5 = 2
4 x 2 = 8
(total B = 10)
A ÷ B = 19
[MII
R
C
] [MII
R
C
] [MC] [
C
ON
]
0.
3.Constant Calculation
2 + 3 = 5 2 [+] 3 [=] 5.00
4 + 3
= 7 4 [=] 7.00
3 x
4.111 = 12.333 3 [x] 4.111 [=] 12.34
5/4
3 x
6 = 18 6 [=] 18.00
4.Overflow Error Clear
12345678901234
x 100
= 1234567890123400
123456789012345
[00t0] [x] 100 [=]
[
C
ON
]
ERROR
ERROR
12’345’678’901’234
12.345678901234
0.
5.PRICE MARK-UP & DOWN CALCULATION
200+(P x 20%)=P
P=
20% - 1
200
= 250
250–200 = 50
200 [÷] 20 [MU]
[MU]
250.
50.
5/4
125–(P x 20%)=P
P=
25% 1
125
+
= 100
125–100 = 25
125 [÷] 25 [+/–] [MU]
[MU]
100.
25.
6.DELTA PERCENT
5/4
150
150 - 180
x100%
= 20%
180 [–] 150 [MU] 20.