Led Indication - Hanna HI8410 Instruction 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
mg/L LED
OFF/AUTO/ON LED It is on when the switch is in OFF (dosage disabled)
SET LED
ΔALARM LED
MEASURE LED
SALINITY g/L LED It is ON while the instrument is in SALINITY set
100% TEST LED It is ON when the 100% TEST key is pressed.
°C LED
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LED INDICATION

LED INDICATION LED INDICATION
LED INDICATION LED INDICATION
It is on if the selected range is % DO.
It is on if the selected range is mg/L..
or in ON (dosage continuous enabled) position.
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).
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).
It is ON while the instrument is in MEASURE
mode.
mode.
It is on when the °C key is pressed and the
temperature is displayed.
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