Hanna Instruments HI 23 Series Instruction Manual page 15

ENTERING THE PASSWORD
The setup codes can be selected
after password and CFM are
pressed. When CFM is pressed,
the current setup item is saved
on EEPROM and the following
item is displayed. Whenever
LCD is pressed, the device reverts back to control mode. The
same is true when CFM is pressed on the last setup item.
The possible transitions in setup mode are the following:
• Press SETUP to enter the setup mode. The LCD will display
"0000" on the upper part and "PAS" on the lower. The first
digit of the upper part of the LCD will blink.
• Enter the first value of the password by the
• Then confirm the displayed digit with
next one.
• When the whole password has been inserted, press CFM
to confirm it.
or keys.
and move to the
15