File name: D510_English.doc version : 3/21/2006
CITIZEN model TDS-2000 is a 12-digit desktop calculator specially
designed with two big LCD displays. Just like a cash register, this
innovative feature makes it possible for the 2
nd
person to share together
with your calculating process more conveniently.
* POWER SUPPLY English
TDS-2000 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 battery cover on
lower cabinet to remove the old battery and insert a new battery in the
indicated polarity. After changing battery, please use a pointed object to
press the RESET hole near the battery. When you finish, replace the
battery cover and secure the screw.
* KEY INDEX English
[ON/C] : Power on / Clear key [CE] : Clear entry key
[00▶0] : Right Shift key [M–] : Memory minus key
[M+] : Memory plus key [+/–] : ±Sign change key
[MRC] : Memory recall key / Memory clear key
[%] : Percentage key [MU] : Mark-up / Mark-down key
[CHANGE] : Change calculation key To recall the amount to pay or the
amount of change when pressing [CHANGE] key
[RATE] : Tax rate setting key
[
STORE
+TAX
] : Price with Tax key
To store tax rate when pressing [RATE] and [+TAX] keys
[
RECALL
-TAX
] : Price without Tax key
To recall tax rate when pressing [RATE] and [-TAX] keys
0 1 2 3 F
Decimal place selection switch
– F –
– 0 –1– 2 – 3 –
– A –
Floating decimal mode
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:
M : Memory TAX : Amount of tax
– : Minus (or negative) –TAX : Price excluding tax
+TAX : Price including tax RATE : Tax rate setting
% : Tax rate stored and recalled E : Overflow / Logic / Memory error
CHANGE : Amount of change
* OPERATION EXAMPLES English
1.Calculation Examples
Before performing each calculation, press the [ON/C] key two times.
Example Key operation Display
2 x 3 = 6 2 [x] 2 [CE] 3 [=]
6.
7 x 9 = 63 7 [÷] [x] 9 [=] 63.
300 x 27% = 81 300 [x] 27 [%] 81.
56
11.2
x 100% = 20%
11.2 [÷] 56 [%]
20.
300+(300 x 40%)=420 300 [+] 40 [%] 420.
300–(300 x 40%)=180 300 [–] 40 [%] 180.
1400 x 12% = 168 1400 [x] 12 [%] 168.
6 + 4 + 7.5 = 17.5 6 [+] 4 [+] 7.5 [=] 17.5
5 x 3 ÷ 0.2 = 75 [ON/C] 5 [x] 3 [÷] 0.2 [=] 75.
8 ÷ 4 x 3.7 + 9 =16.4 8 [÷] 4 [x] 3.7 [+] 9 [=] 16.4
5
4
= 625 5 [x] [=] [=] [=] 625.
1 / 2 = 0.5 1[÷]2 [=] or 2 [÷] [=] 0.5
0 1 2 3 F
10) 3 x (2
1
+
= 0.0625
2 [x] 3 [+] 10 [÷] [=] 0.0625
0 1 2 3 F
5/4
$14.90+$0.35–$1.45+
$12.05=$25.85
1490 [+] 35 [–] 145
[+] 1205 [=]
145.
25.85
2.Memory Calculation
[MRC] [MRC] [ON/C] 0.
12 [x] 4 [M+] 20 [÷] 2 [M–]
M
10.
[MRC]
M
38.
0 1 2 3 F
5/4
(12 x 4) – (20 ÷ 2)
= 38
[MRC] [ON/C]
0.
3.Constant Calculation
2 + 3 = 5 2 [+] 3 [=] 5.
4 + 3
= 7 4 [=] 7.
3 – 2
= 1 3 [–] 2 [=] 1.
2 – 2
= 0 2 [=] 0.
3 x
4 = 12 3 [x] 4 [=] 12.
3 x
6 = 18 6 [=] 18.
12 ÷ 4
= 3 12 [÷] 4 [=] 3.
0 1 2 3 F
24 ÷ 4 = 6 24 [=] 6.
4.Overflow Error Clear
123456789012
123’456’789’012.
[x] 100000 [00▶0]
10000.
[=] E
1’234.56789012
123456789012 x 10000
= 1'234.56789012 x 10
12
[ON/C]
0.
5.Price Mark-Up & Down Calculation
2000+(P x 20%)=P
P=
20% - 1
2000
=2'500.00
2500–2000 = 500.00
2000 [÷] 20 [MU]
[MU]
2'500.00
500.00
2000–(P x 20%)=P
P=
20% 1
2000
+
=1'666.66
2000 [÷] 20 [+/–] [MU]
1'666.66
0 1 2 3 F
5/4
15000
15000 - 18000
x100%
= 20.00%
18000 [–] 15000 [MU] 20.00
6.Tax Calculation
100+TAX(3%) = 103
Tax su m = 3
3 [RATE] [+TAX]
100 [+TAX]
[+TAX]
3.
103.
3.
%
+TAX
TAX
3 = Tax sum 103 = Tax inclusive value
206-TAX(3%) = 200
Tax su m = 6
[ON/C] [RATE] [-TAX]
206 [-TAX]
[-TAX]
[CE]
3.
200.
6.
0.
%
-TAX
TAX
0 1 2 3 F
5/4
6 = Tax sum 200 = Tax exclusive value
7.Change Calculation
100 + 20 = 120 100 [+] 20 [=] 120.
120 = the amount to pay
500 – 120
= 380 500 [CHANGE]
CHANGE
380.
500 = the amount given 380 = the change returned
To recall the value to pay: [CHANGE]
120.
This value is stored after performing [=] key.
To recall the value of change: [CHANGE]
CHANGE
380.
This value is stored after performing [CHANGE] key.
1000 – 120
= 880 1000 [CHANGE]
CHANGE
880.
1000 = the amount given 880 = the change returned
0 1 2 3 F
5/4
To clear the values [ON/C] 0.
(33 pages)
(15 pages)
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