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12 Instructions for the beginning of use
1.
Open the inflow valve (upstream from the meter) gradually.
2.
Open the outflow valve (downstream from the meter) gradually.
Check that the pilot is blinking.
3.
Change the indicator display of the meter to an instantaneous flow rate value, and then
adjust the valve so that the flow rate value is in the specified range.
4.
Use the meter in the normal mode with the integrated flow rate display.
5.
At the time of power-on (applicable only for the external power source type), an integrated
flow rate value is displayed.
13 Instructions for inspection
Caution
Depending on the gas to be measured, installation environment, and use conditions, the
performance of the meter can rapidly deteriorate.
Periodically check the meter at the appropriate times in accordance with your usage
conditions.
1.
When the pilot does not blink in spite of the presence of a gas flow, detach the meter from
the pipes and then gently blow air into the inlet of the meter to check whether or not the
pilot on the indicator blinks. If the pilot does not blink, check whether or not foreign objects
adhere to inside the meter. Remove such objects as necessary.
a.
Foreign objects on the rim of the impeller can be removed by giving a light impact
on the body.
b.
Due to the structural restrictions, it would not be possible to restore a meter that has
an adherent such as sealant that cannot be removed on-site. In such a case, you
will need to purchase a new one (i.e. the meter is not repairable).
2.
If the foreign objects can be removed, blow air into the inlet again. When the pilot blinks,
the meter is now properly working.
3.
When the most significant digit of the integrated flow rate display is blinking, it is warning
that the battery is running down (applicable only for the Built-in battery type). It is
recommended that the meter should be replaced immediately.
