Hanna Instruments HI 84502 User Manual

Page 9

ESC - used to leave the current screen and to return either to the previous screen or to the

main screen. In Setup menu, exits a parameter without changing the value.

- used to modify the parameter values, to scroll the information displayed while

viewing a help screen or to move between the options from the instrument’s Setup menu

CAL - used to access the Electrode and Pump calibration options
HELP - used to access/exit the instrument’s contextual help
LOG - used to save the current mV/pH reading in pH meter mode and the titration result
MENU - used to enter Setup, Recall or GLP selection menu, while instrument is in pH or

Titration mode

STIR - used to start/stop the stirrer

Note: The stirrer starts automatically during pump calibration and titration, it cannot

be stopped by pressing

STIR key.

GUIDE TO INDICATORS
During the instrument’s operation information is displayed on the LCD.
Displayed icons:

KEYPAD FUNCTION

1) Current time and instrument mode information (pH meter or Titrator)
2) pH electrode condition
3) Instrument status
4) Virtual option keys

Unstable reading.

Stirrer on.

Pump running.

Parameter can be modified.

Stirrer is not working properly.