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* POWER SUPPLY
CITIZEN model SDC-805BN 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 7 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.
* KEY INDEX
[ON/C] : Power on / Clear key.
[+/–] : ±Sign change key.
[M–] : Memory minus key.
[ ] : Square root key.
The Signs Of The Display Mean The Following:
M：Memory.
E：Overflow-error.
* OPERATION EXAMPLES
1.Calculation Examples
Before performing each calculation, press the [ON/C] key.
Example
2 x 3 = 6
7 x 9 = 63
300 x 27% = 81
11.2
x 100% = 20%
56
300+(300 x 40%)=420
300–(300 x 40%)=180
1400 x 12% = 168
6 + 4 + 7.5 = 17.5
5 x 3 ÷ 0.2 = 75
8 ÷ 4 x 3.7 + 9 =16.4
4
5
= 625
1 / 2 = 0.5
1
= 0.0625
+
(2
x
3
10)
= 12
144
2.Memory Calculation
(12 x 4) – (20 ÷ 2) = 38
3.Constant Calculation
2 + 4 = 6
6 + 4 = 10
7– 5 = 2
15 – 5 = 10
3 x 4 = 12
3 x 6 = 18
10 ÷ 5 = 2
15 ÷ 5 = 3
4.Overflow Error Clear
12345678 x 100
= 1234567800
File name: SDC-805BN_English_20100105 version : 10/01/05
[CE] : Clear entry key.
[M+] : Memory plus key.
[MRC] : Memory recall / clear key.
–：Minus ( or negative ).
Key operation
2 [x] 3 [=]
7 [÷] [x] 9 [=]
300 [x] 27 [%]
11.2 [÷] 56 [%]
300 [+] 40 [%]
300 [–] 40 [%]
1400 [x] 12 [%]
6 [+] 4 [+] 7.5 [=]
5 [x] 3 [÷] 0.2 [=]
8 [÷] 4 [x] 3.7 [+] 9 [=]
5 [x] [=] [=] [=]
2 [÷] [=]
2 [x] 3 [+] 10 [÷] [=]
144 [ ]
[MRC] [MRC] [ON/C]
12 [x] 4 [M+] 20 [÷] 2 [M–]
[MRC]
[MRC] [ON/C]
2 [+] 4 [=]
6 [=]
7 [–] 5 [=]
15 [=]
3 [x] 4 [=]
6 [=]
10 [÷] 5 [=]
15 [=]
12345678
[x] 100 [=]
[ON/C]
English
English
English
Display
6.
63.
81.
20.
420.
180.
168.
17.5
75.
16.4
625.
0.5
0.0625
12.
0.
M
10.
M
38.
0.
6.
10.
2.
10.
12.
18.
2.
3.
12'345'678.
E
12.345678
0.
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