2
2 Precautions for use
Caution
1. Do not install the product at a dangerous place.
Do Not
Do not use the product for applications to which a high level of safety is required,
such as nuclear power, railway, aviation, vehicle, and amusement applications.
The electric circuits in this turbine meter do not have an anti-explosion structure.
2. Do not use this product for the measurement of corrosive gases or
the gases listed below.
Do Not
It may corrode parts in use or cause a leakage of gas. In addition, the
measurements can be inaccurate.
Chlorine, hydrogen cyanide, nitrogen dioxide, fluorine
Toxic gases
Hydrogen chloride, boron trifluoride, boron dioxide
Sulfur dioxide, hydrogen fluoride, hydrogen sulfide
Others
Ammonia, chlorine dioxide, oxygen, hydrogen, helium
Depending on the property of the gas to be measured, the meter may become
deteriorated in performance or damaged. Contact us before measuring a special
gas.
3.
Do not give an impact to the meter.
Do Not
The meter is a precision measuring
instrument. Do not give a strong impact to
the meter or hit the meter with an object.
Besides, do not insert a cylindrical object
into the meter. It may cause a leakage of
gas or damage.
4. Do not disassemble the meter.
Do not
disassemble
The meter is a precision measuring
instrument. Do not disassemble it. It may
cause a leakage of gas.
5. Conduct an airtightness test to the installed meter, including the
pipes located prior and subsequent to it.
Do
Check that no leakage occurs at a
pressure 1.1 times larger than the
maximum allowable working pressure.
6. Connection to an external power source (applicable for the external
power source type)
Do
Use caution not to make a short circuit when connecting the external connection
cable to a power source.
The power source used should be an isolation type having a short-circuit protection
function.
Conduct an airtightness test
between these points.
Strainer
Meter
