Citizen SDC-640II Manuel D'instructions page 14

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* 电源
CITIZEN SDC-640II 是双重电池计算器(太阳能与电池供电)，可以在
任何光线下操作。
-自动关闭电源-
如果在 6 分钟左右不进行任何操作计算器的电源将会自动关闭。
-电池更换-
换电池，打开下盖取出旧电池，将新电池放在电池槽
如果需要更
中。
更换电池后，请用一金属、椭圆形物体压按印刷电路板上的 RESET
板。
* 按键索引
ON
] : 关机/全部清除 [CE] : 清除输入
[
C
[MU] : 标价/降价 [00 0] : 未位删除键
[M–] : 减法记忆键
[M+] : 加法记忆键
[MR] : 记忆键
[+ / –] : 正负号改变键
[MC] : 消除键
[MII+] [MII–] [MII
小数字设定开关
– F – 浮点小数模式
– 0 – 2 – 3 –
固定小数字模式
– A –
加位模式 自动在加法与减法计算中加入货币小数点
5/4
无条件进位/四舍五入/无条件舍去 开关
显示屏各标志之意义：
MEMORY：第 1 组记忆
MEMORYII：第 2 组记忆
* 操作范例
1.一般计算操作
ON
在执行计算前，先按[ ]键。
C
范例 按键操作
1 x 2 x 3 = 6 ON
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.记忆计算的操作
(12 x 4) – ON
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.常数计算
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.超出运算容量的消除
12345678901234 123456789012345
x 100 [00 0] [x] 100 [=]
= 1234567890123400 ON
[ ]
C
5.标价&降价计算
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.差值百分比
180 - 150 180 [–] 150 [MU]
5/4
x100%
150
= 20%
File name: D494_IB_Chinese_080919.doc
Size : 250x72mm(成型 : 125x72mm)
中文
中文
R ] : 第二组记忆键
C
–MINUS：负号
ERROR：溢位 / 错误
中文
显示
]
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