2.Matters Need Attention:
1. In use, it is necessary to
often pay attention to the water level in the instrument to
remain stable, otherwise it will affect the measurement
accuracy.
2. In use, the temperature
should be maintained between 15-25 °C, the temperature is the
same as room temperature, and the temperature difference should
be less than or equal to 2°C.
3. After opening the air valve,
the gas in the intake pipe enters the instrument, and the watch
hand begins to rotate. When the meter continuously rotates for 5
minutes or the gas volume through the instrument is equivalent
to 50 times the rotation volume, the reading can be carried out.
4. When the pressure of the
measured gas exceeds the normal pressure value of 1 to 6 times
(1-6kpa), the instrument can still work, at this time should be
taken off the pressure gauge, with a non-porous rubber plug to
plug the pressure gauge mounting hole.
5. When the flow rate of the
measured gas is used within the range of rated flow to overload
flow, the instrument can still work, but the measurement
accuracy will be reduced at this time.
6. When the instrument is not
used for a long time, the distilled water in the instrument
should be discharged clean, the water discharge valve should be
used first, and then the meter head down, and then the outlet
pipe down, so repeated several times, in order to completely
discharge the water.
7. The instrument should not be
placed in the too cold indoor installation, so as to avoid
internal icing.
8. Under normal use, at least
once a year to check the accuracy. |