Citizen SDC-640II Manuel D'instructions page 2

All manuals and user guides at all-guides.com
* POWER SUPPLY
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
ON
[ ] : Power on / Clear key. [CE] : Clear entry.
C
[00 0] : 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
R
[MII+] [MII–] [MII ] : The Second Memory Key
C
Decimal place selection switch
– F – Floating decimal mode
– 0 – 2 – 3 – Fixed decimal mode
– A – 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.
MEMORYII:The second memory loaded.
* OPERATION EXAMPLES
1.Calculation Examples
Before performing each calculation, press the [
Example Key operation
ON
1 x 2 x 3 = 6
5/4
[
1 [x] 2 [x] 3 [=]
ON
[
2 x 3 = 6 2 [x] 2 [CE] 3 [=]
2 + 4 + 6 = 12
2 [+] 3 [+] 6 [
2 [+] 4 [+] 6 [=]
1234 x 100 12345 [00 0]
= 123,400 [x] 100 [=]
5 x 3 ÷ 0.2 = 75
5 [x] 3 [÷] 0.2 [=]
300 x 27% = 81 300 [x] 27 [%]
11.2
x 100% = 20% 11.2 [÷] 56 [%]
56
30 + (30 x 40%) = 42 30 [+] 40 [%]
30 – (30 x 40%) = 18 30 [–] 40 [%]
4
5 = 625 5 [x] [=] [=] [=]
$14.90 + $0.35 – $1.45 1490 [+] 35 [–] 145 [+]
+ $12.05 = $25.85 1205 [=]
5/4
1 / 30 = 0.0333.... 30 [÷] [=]
1
= 0.166.... 2 [x] 5 [–] 4 [÷] [=]
(2 x - 5 4)
2.Memory Calculation
ON
(12 x 4) –
5/4
[ ]
C
(20÷ 2) = 38
12 [x] 4 [M+] 20 [÷] 2 [M–]
[MR]
[MC] [CE]
15 x 2 = 30 15 [x] 2 [M+] 20 [x] 3 [M+]
20 x 3 = 60 25 [x] 4 [M+]
25 x 4 = 100 [MR]
(total A = 190) 10 [÷] 5 [MII+] 4 [x] 2 [MII+]
10 ÷ 5 = 2
R
[MII ]
C
4 x 2 = 8
[MR] [÷]
(total B = 10)
R
[MII ]
A ÷ B = 19 C
[=]
R
[MII ] [MII
C
3.Constant Calculation
5/4 2 + 3 = 5 2 [+] 3 [=]
4 + 3 = 7 4 [=]
3 x 4.111 = 12.333 3 [x] 4.111 [=]
3 x 6 = 18 6 [=]
4.Overflow Error Clear
12345678901234 123456789012345
x 100 [00 0] [x] 100 [=]
= 1234567890123400 ON
[ ]
C
5.PRICE MARK-UP & DOWN CALCULATION
5/4 200+(P x 20%)=P 200 [÷] 20 [MU]
200 [MU]
P= = 250
- 1 20%
250–200 = 50
125–(P x 20%)=P 125 [÷] 25 [+/–] [MU]
125
[MU]
P= = 100
+
1 25%
125–100 = 25
6.DELTA PERCENT
180 - 150
5/4 180 [–] 150 [MU]
x100%
150
= 20%
File name: D494_IB_English_081919.doc
Size : 250x72mm(成型 : 125x72mm)
English
English
–MINUS:Minus ( or negative)
ERROR:Overflow-error.
English
ON
] key.
C
Display
]
0.
C
6.
]
0.
C
6.
ON
] 0.
C
12.
1'234
123'400
75.
81.
20.
42.
18.
625.
25.85
0.03
0.16
0.
MEMORY
10.
MEMORY
38.
0.
MEMORY
60.
MEMORY
100.
MEMORY
190.
MEMORY MEMORY II
8.
MEMORY MEMORY II
10.
MEMORY MEMORY II
190.
MEMORY MEMORY II
10.
MEMORY MEMORY II
19.
ON
R
] [MC] [ ] 0.
C
C
5.00
7.00
12.34
18.00
ERROR 12'345'678'901'234
ERROR
12.345678901234
0.
250.
50.
100.
25.
20.
Date : 2008/9/19