Use Instruction

16
5.3 Storage
Please store the electronic peak flow meter in a clean and dry place under the
storage environment condition as specified in the manual. Do not place it under
the sun or extreme high or low temperature to avoid severe impact. Otherwise,
these may cause the device to fail to work normally or even be damaged.
5.4 Waste disposal
The meter, accessories and consumables are to be disposed of according to
local law or regulation after they have exceeded their service life. Alternatively,
they can be returned to the local distributor or the manufacturer for recycling or
proper disposal.
For the detailed disposal information, consult the manufacturer or the local
distributor.
6 Common troubleshooting
Abnormal
phenomenon
Possible reason
Resolution method
Screen shows
nothing
The battery level is too
low or the battery is
installed incorrectly.
Replace the battery with a
new one and pay attention to
the direction in which the
positive and negative
electrodes are installed.
Screen shows “Err 1”
1. No blowing in 30
seconds
2. System failure
1. Follow operation step 3.3
again to perform the
testing
2. System failure, please
contact the manufacturer
or dealer
Screen shows “Err 2”
Out of measurement
range (PEF Value ＜
50L/min)
Follow operation step 3.3
again to perform the testing