Press or to adjust number and press to switch to next digit. Then press to switch
to
Save
or
Exit
. Press to finish the calibration and exit the interface (fig.18 & fig.19).
Calibration
PM2.5
30.0 μg/m
3
K 0.61
fig.18
Press the Up or Down button
to set the current value,
press the menu button to
switch to the next item.
Calibration
PM2.5
49.2 μg/m
3
K 1.00
Press the Up or Down button
to set the current value,
press the menu button to
switch to the next item.
Decrease "K" to 0.61
Formula: K(target value) = PM2.5(target value) / PM2.5(current value) * K(current value).
Example (fig.18)：
If PM2.5 target value is 30.0µg/m3, current value is 49.2µg/m3, current value of K is 1.00.
Then "K(target value) = 30.0/49.2 * 1.00 = 0.61"
For products calibrated according to ISO standard, K coecient is 1 by default. It is only
recommended that professional engineers perform this adjustment under standard conditions
with standard laboratory, or test bin facilities. At the same time, the calibration environment
required for P2.5 is relatively high, and the calibration results will be aected by factors such as
dust/particle size and dierent configurations of standard warehouse facilities, etc, so it is
strongly recommended that you use this function only under essential conditions or contact us
to better support your special needs.
c.
The
Calibration
interface displays 4 options below (fig.17).
Calibration
1
2
3
4
fig.17
9
1. PM2.5 Calibration: You can calibrate the temperature and humidity by modifying the "OFF" value.
PM2.5
TEMP & HUM
CO
2 Zero
HCHO Zero
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