Citizen CT-500j User manual

- E1 -
File name: CT-500_IB_English Date: 2006/2/8
Size: 9 x 12.6 cm
POWER SUPPLY
CITIZEN model CT-500 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-
Remove the screw and the battery cover. Install a new battery with the +
symbol facing upward, and then use a pointed object to short the RESET hole
at the bottom-right corner of the battery compartment. When you finish, put
back the battery cover and secure the screw.
KEY INDEX
[ON/C] :Power on / Clear key [CE] :Clear entry key
[+/–] :Sign change key [ x] :Square root key
[MU]: Price mark-up / down key [ % ] :Percentage key
[M=
+] :Memory plus key [M=
−
] :Memory minus key
[MRC] :Memory recall key / Memory clear key
[
CORRECT
00→0
X
] :Correction key in Replay mode / Right-shift key in normal Edit mode
[REPLAY
AUTO ] :Automatic replay key
[RECALL
ERROR ] :Error recall key
[
CHECK
PRE/NOW
] :① Step-by-step check key in normal Edit mode (a→b→c=d); ②
Previous-input / now-input display shift key in Error Recall mode
[
CHECK
]: Step-by-step check key in normal Edit mode (a←b←c=d)

- E2 -
File name: CT-500_IB_English Date: 2006/2/8
Size: 9 x 12.6 cm
THE SIGNS OF THE DISPLAY MEAN THE
FOLLOWING:
:Item counter (Max : 120) CRT :Correction mode
REP :Replay mode M :Memory loaded
E :Overflow / Logic error – : Minus ( or negative) value
PRE:Previous input NOW:now input
RECALL:Error recall mode MU :Mark up / down calculation
% :Percent = : Equal sign
ANS :Answer (to indicate the calculation result in Replay mode)
＋－×÷ :Addition, subtraction, multiplication, division sign
ERR / NO ERR:Comparison error / no comparison error in ERROR RECALL
mode