Dust Sensor · Humidity Sensor; Auto Detection - Hitachi EP-A8000 Instruction Manual

The dust sensor is capable of sensing dust in the air such as cigarette smoke, house
dust, pollen, etc.
The dust sensor may fail to sense dust stirred up when you lay out or put away bed-
ding, which contains significantly fewer contaminants than cigarette smoke, etc. In
such a case, the displayed air contamination level may appear to be lower.
Carry out periodical cleaning every 3-6 months. Otherwise the performance of the
dust sensor will drop.
The humidity sensor detects humidity of room air during operation.
Humidity levels should be taken as a guide only.
The indication may differ from hygrometer readings.
Humidity will change as temperature changes.
Humidity levels may differ between well-ventilated and poorly-ventilated places.
The air purifier performs automatic operation by detecting room air contamination using the "Odor Sensor"
and "Dust Sensor", and room air humidity using the "Humidity Sensor".
During the first 3 minutes after the power cord is plugged in, the unit will check the air condition of the room and
save it in memory. During this time, the "Air Sensor" and "Humidity Level 50" indicators will blink. After 3 minutes,
both the "Air Sensor" and "Humidity Level 50" indicators will go off and the purifier will now be ready to operate.
You may start the operation within 3 minutes after the power cord is plugged in.
In this case too, the "Air Sensor" and "Humidity Level 50" indicators will continue to blink, meaning the
unit is checking room air condition. After 3 minutes have elapsed, the indicators will stop blinking.
If you plug in the power cord in an environment containing contaminated air, the sensitivity of the sensor may
be reduced. In such a case, perform the High or Max operation. Or open a window and plug the power cord into
the AC outlet when ambient air is clean. If the sensitivity of the sensor remains low after doing so, change the
sensor sensitivity setting.
Dust sensor
P.E-26
Humidity Sensor

Auto Detection

Dust Sensor
Humidity Sensor
E-19