Citizen Systems SDC-444S User Manual
File name: D48N_English v
ersion : 07/07/24
* POWER SUPPLY
English
CITIZEN model SDC-444S 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.
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
AC
AC
] : Power on / All Clear key.
[CE/C] : Clear Entry / Clear key.
[MU] : Price Mark-up/down key
[00
[MU] : Price Mark-up/down key
[00
t0] : Shift-back key.
[M+] : Memory plus key.
[M–] : Memory minus key.
[+ / –] : ±Sign change key
[MR] : Memory recall key
[MC] : Memory clear key
[MII+] [MII–] [MII
R
C
C
] : The Second Memory key
A 0 2 3 4 F
Decimal place selection switch
– F –
–
0
–
2
–
3
–
4
–
– A –
Floating decimal mode
Fixed decimal mode
ADD–mode automatically enters the monetary
decimal in addition and subtraction calculations
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:
MI:The first memory loaded.
MI:The first memory loaded.
–:Minus ( or negative)
MII:The second memory loaded.
E:Overflow-error.
* OPERATION EXAMPLES
English
1.Calculation Examples
Before performing each calculation, press the
[
ON
AC
AC
]
key.
Example
Key
operation
Display
1 x 2 x 3 = 6
[
ON
AC
AC
]
1 [x] 2 [x] 3 [=]
[CE/C]
[CE/C]
0.
6.
0.
0.
2 x 3 = 6
2 [x] 2 [CE/C] 3[=]
6.
5/4
↑
↓
A 0 2 3 4 F
2 + 4 + 6 = 12
2 [+] 3 [+] 6 [CE/C] [CE/C]
2 [+] 4 [+] 6 [=]
2 [+] 4 [+] 6 [=]
0.
12.
1234 x 100
= 123,400
= 123,400
12345
[00
t0]
[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.
144
= 12
144 [
]
12.
A 0 2 3 4 F
$14.90 + $0.35 – $1.45
+ $12.05 = $25.85
+ $12.05 = $25.85
1490 [+] 35 [–] 145 [+]
1205 [=]
1205 [=]
25.85
1 / 30 = 0.0333….
30 [÷] [=]
0.03
5/4
↑
↓
A 0 2 3 4 F
4)
-
5
x
(2
1
= 0.166….
2 [x] 5 [–] 4 [÷] [=]
0.16
2.Memory Calculation
[
ON
AC
AC
]
0.
12 [x] 4 [M+] 20 [÷] 2 [M–]
MI
10.
[MR]
MI
38.
(12 x 4) – (20 ÷ 2) =
38
38
[MC]
[CE/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
C
]
MI
MII
10.
[MR]
[÷]
MI
MII
190.
[MII
R
C
C
]
MI
MII
10.
[=]
MI
MII
19.
5/4
↑
↓
A 0 2 3 4 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
20 x 3 = 60
25 x 4 = 100
(total A = 190)
10 ÷ 5 = 2
4 x 2 = 8
(total B = 10)
A ÷ B = 19
[
ON
AC
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 [=]
12.34
5/4
↑
↓
A 0 2 3 4 F
3 x 6 = 18
6 [=]
18.00
4.Overflow Error Clear
123456789012 x 100
= 12345678901200
1234567890123
[00
t0]
[x] 100 [=]
[
ON
AC
AC
]
E
E
123'456'789'012
12.3456789012
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
↑
↓
A 0 2 3 4 F
125–(P x 20%)=P
P=
25%
1
125
+
= 100
125–100 = 25
125 [÷] 25 [+/–] [MU]
[MU]
100.
25.
6.Delta Percent
5/4
↑
↓
A 0 2 3 4 F
150
150
-
180
x100% =
20%
180 [–] 150 [MU]
20.