Citizen SDC-8780L - Power Supply and Battery Information; Auto Power-Off Function; Backup Battery Replacement; Operation Examples and Calculations

File name: D19L_IB_E_041007.doc vision : 03/11/01
* POWER SUPPLY English
CITIZEN model SDC-8780L 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-
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 English
[ON/C] : Power on / Clear key. [AC] : All Clear key.
[t] : Right Shift key. [M+] : Memory plus key.
[M–] : Memory minus key. [+/–] : ±Sign change key
[MR] : Memory recall key [MC] : Memory clear key.
[MU] : Mark-up / Mark-down Key
[MII+] [MII–] [MII
R
C
] : The Second Memory Key
A 0 2 3 F
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-off / Round-down switch
The Signs Of The Display Mean The Following:
MIΚThe first memory loaded. –ΚMinus ( or negative)
MIIΚThe second memory loaded. EΚOverflow-error.
* OPERATION EXAMPLES English
1.Calculation Examples
Before performing each calculation, press the [AC] key.
Example Key operation Display
1 x 2 x 3 = 6
[AC]
1 [x] 2 [x] 3 [=]
[ON/C]
0.
6.
0.
8 – 3 = 5
7 x 9 = 63
8 [+] [–] 3 [=]
7 [÷] [x] 9 [=]
5.
63.
2 x 3 = 6 2 [x] 2 [ON/C] 3[=] 6.
2 + 4 + 6 = 12 2 [+] 3 [+] 6 [AC]
2 [+] 4 [+] 6 [=]
0.
12.
1234 x 100
= 123,400
12345
[t]
[x] 100 [=]
1’234.
123’400.
300 x 27% = 81 300 [x] 27 [%] 81.
56
11.2
x 100% = 20%
11.2 [÷] 56 [%]
20.
300+(300x 40%)=420 300 [+] 40 [%] 420.
A 0 2 3 F
5/4
300–(300x 40%)=180 300 [–] 40 [%] 180.
A 0 2 3 F
$14.90+$0.35–
$1.45+$12.05=$25.85
1490 [+] 35 [–]
145 [+] 1205 [=]
15.25
25.85
5 x 3 ÷ 0.2 = 75 5 [x] 3 [÷] 0.2 [=]
75.00
A 0 2 3 F
8 ÷ 4 x 3.7 +9 =16.40 8 [÷] 4 [x] 3.7 [+] 9 [=]
16.40
5
4
= 625 5 [x] [=] [=] [=] 625.000
1 / 2 = 0.5 2 [÷] [=] 0.500
A 0 2 3 F
5/4
6)-5 x (2
1
= 0.25
2 [x] 5 [–] 6 [÷] [=]
0.250
A 0 2 3 F
200+(P x 20%)=P
P=
20%-1
200
= 250
250–200 = 50
200 [÷] 20 [MU]
[MU]
250.
50.
2.Memory Calculation
[AC]
0.
12 [x] 4 [M+] 20 [÷] 2 [M–]
MI
10.
[MR]
MI
38.
(12 x 4) – (20 ÷ 2) =
38
[MC] [ON/C]
0.
15 [x] 2 [M+] 20 [x] 3 [M+]
MI
60.
25 [x] 4 [M+]
MI
100.
[MR]
MI
190.
10 [÷] 5 [MII+] 4 [x] 2 [MII+]
MI
MII
8.
[MII
R
C
]
MI
MII
10.
[MR] [÷]
MI
MII
190.
[MII
R
C
]
MI
MII
10.
[=]
MI
MII
19.
A 0 2 3 F
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
[AC]
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 [=] 12.33
A 0 2 3 F
5/4
3 x
6 = 18 6 [=] 18.00
4.Overflow Error Clear
123456789012 x 10000
= 1'234.56789012 x 10
12
1234567890123
[t]
[x] 10000 [=]
[AC]
E
E
123'456'789'012
123’456’789’012
1’234.56789012
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.
A 0 2 3 F
125–(P x 20%)=P
P=
25%1
125
+
= 100
125–100 = 25
125 [÷] 25 [+/–] [MU]
[MU]
100.
25.
6.DELTA PERCENT
A 0 2 3 F
150
150-180
x100%
= 20%
180 [–] 150 [MU] 20.