6
1) Liquid Crystal Display (LCD).
2) F1, F2, F3 functional keys.
3) / keys to manually increase/decrease the parameters or to scroll through the menu.
4) ON/OFF ( ) key, to turn the instrument ON and OFF.
5) LIGHT ( ) key, to toggle display backlighting.
6) GLP key, to display Good Laboratory Practice information.
7) CAL key, to enter/exit calibration mode.
8) SETUP key, to enter/exit SETUP mode.
9) RCL key, to enter/exit view logged data mode (RCL means RECALL).
10) MODE key to change DO measuring unit when in DO measurement mode, or to toggle between
standard and pressure in DO calibration.
11) RANGE key, to switch between DO, BOD, OUR AND SOUR.
12) HELP key to enter/exit contextual help.
13) ESC key to leave current mode, exit calibration, setup, help, etc.
FUNCTIONAL DESCRIPTION
FRONT VIEW