User Manual

All LEDs above the keys or near switches indicate the state of each

function, whether it is active or the display is indicating the mode.

% DO LED It is on if the selected range is % DO.

mg/L LED It is on if the selected range is mg/L..

OFF/AUTO/ON LED It is on when the switch is in OFF (dosage disabled)

or in ON (dosage continuous enabled) position.

SET LED In MEASURE mode it is OFF or blinking (25% ON) in

accordance with the dosage relay status (inactive/

active).

In SET mode it is ON or blinking (75% ON) in

accordance with the dosage relay status (inactive/

active).

ΔALARM LED In MEASURE mode it is OFF or blinking (25% ON) in

accordance with the alarm status (inactive/active).

In ΔALARM set mode it is ON or blinking (75% ON)

in accordance with the alarm status (inactive/active).

MEASURE LED It is ON while the instrument is in MEASURE

mode.

SALINITY g/L LED It is ON while the instrument is in SALINITY set

mode.

100% TEST LED It is ON when the 100% TEST key is pressed.

°C LED It is on when the °C key is pressed and the

temperature is displayed.

LED INDICATIONLED INDICATION

LED INDICATION