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
[+/–] : Sign change key
[MU] : Price mark-up / down key
+
[M
] : Memory plus key
=
[MRC] : Memory recall key / Memory clear key
CORRECT
[
] : Correction key in Replay mode / Right-shift key in normal Edit mode
X
00→0
[
AUTO
] : Automatic replay key
REPLAY
ERROR
[
] : Error recall key
RECALL
CHECK
[
] : ① Step-by-step check key in normal Edit mode (a →b→c=d); ②
PRE/NOW
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)
[CE] : Clear entry key
[ x ] : Square root key
[ % ] : Percentage key
−
[M
] : Memory minus key
=
- E1 -
