Onicon F-5100 Insertion Manual do Utilizador descarregar pdf (Página 32)

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F-5100 Insertion Thermal Mass Flow Meter Manual 05/15 - 0663-20 / 18333 Page A-5

Cleaning the Sensor Assembly

Note, in some cases, contamination of the sensor is the only cause of the

additional heat transfer during the “no ow” test. Remove the sensor, and

clean the sensor (use an appropriate non-corrosive solvent to remove the build-up). A soft brush can

be used to gently clean the sensing surface, using caution to avoid damaging the sensor elements.

Once clean, re-install the sensor as per the instruction manual.

Contact ONICON Service for assistance if the mW readings differ by more than ± 10mW.

CLIMATE ACTION RESERVE LANDFILL PROJECT PROTOCOL VER. 4.0 JUNE 29, 2011

ONICON’s zero ow calibration test complies with the requirements of section 6.2 for eld checking

the ow sensor for calibration accuracy. Percent drift can be determined by multiplying the mW

change from factory value (see 2) by 1.0% (i.e. each mW change equals 1% drift).

The Climate Action Reserve is a national offsets program working to ensure integrity, transparency

and nancial value in the U.S. carbon market. It does this by establishing regulatory-quality

standards for the development, quantication and verication of greenhouse gas (GHG) emissions

reduction projects in North America.

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Onicon F-5100 Insertion Manual do Utilizador Página 32