6. PM2.5 Sensor Dust Removal
PM2.5 sensor dust removal needs to disassemble.
There are currently two ways to clean the dust of PM2.5 sensor:
1: If it is ordinary dry dust, it can use a hair dryer to clean it up. Be careful not to get too hot and too strong wind. Please use a
hair dryer to clean the air inlet and outlet when the PM2.5 sensor stops operating. (Among them, the fan of PM2.5 sensor is the
air outlet; therefore, please fix the fan blade when cleaning the air outlet, and fixing fan blade can be clamped with tweezers or
caught by something.)
2: When the PM2.5 sensor stops operating, the sticky dust inside the sensor cannot be cleaned. The user can use a brush to clean
the dust that can be seen inside the air inlet and outlet.
3: The average time that PM2.5 Dust Sensor is without any failures is 3 years.
If the concentration is more than 300ug/m3 for more than 50% of a year,
or the concentration exceeds 500ug/m3 for more than 20% of a year, the consistency of the sensor will decrease.
The data may be high because of the internal dust accumulation.
7.Installation
1. RA0723 does not have the waterproof function.After the device completes joining the network, please place it indoor.
Please pay attention to the direction when installing the Sensor and keep the pickup facing down
2. R72623 has a waterproof function. After the device completes joining the network, please place it outdoors.
(1)In the installed position, loosen the U-shaped screw, the mating washer, and the nut at the bottom of R72623, and
then make the U-shaped screw pass through the appropriate size cylinder and fix it on the fixing strut flap of R72623.
Install the washer and the nut in order and lock the nut till R72623 body is stable and does not shake.
(2)At the upper side of the fixed position of R72623, loosen the two U-shaped screws, the mating washer and nut on
the side of the solar panel. Make the U-shaped screw pass through the appropriate size cylinder and fix them on the
main bracket
of the solar panel and install the washer and the nut in sequence. Lock nut till the solar panel is stable and does not
shake.
(3) After adjusting the angle of the solar panel completely, lock the nut.
(4) Connect the top waterproof cable of R72623 with the wiring of the solar panel and lock it tight.
