7.PRECAUTIONS
P.9
1.
When the meter is working, keep it away from vibration sources and
strong electromagnetic fields, and environmental locations with
drastic temperature changes, so as not to be interfered and cause
inaccurate measurement data.
2.
When measuring corrosive and toxic gases or liquids, please take
precautionary measures to avoid danger or damage to the
instrument
3.
Please replace the battery in time when the meter shows a low
battery level and remove the battery when it is not used for a long
time to avoid battery leakage and damage the meter.
4.
When measuring the pressure input maximum value, please do not
exceed the scope of the instrument measurement.
5.
When measuring the pressure of a single channel, please do not
block the other channel, and do not apply wind or strong airflow. At
this time, the meter displays the difference between the current
measurement port and the atmospheric pressure.
6.
When the screen shows over range during measurement, please
disconnect the vent hole. The displayed data will automatically
return to normal. (Pa units can only be displayed up to 9999,
adjustable to kpa units.
7.
Before connecting to the trachea, please press and hold the hold
button to clear the zero drift to ensure accurate measurement data
