Step By Step Calibration Instructions - TSI Alnor Velometer Jr. El Manual Del Propietario

Step By Step Calibration Instructions

1. Connect the curved probe to the AirGard
tube.
2. Cover the inlet orifice on the left hand side of the AirGard
(the operator's finger can be used for this purpose).
3. With the inlet covered, the AirGard
fpm. If it does not, adjust the pointer to zero using the screw on the
front of the case.
4. Using a properly calibrated thermo-anemometer, determine the
velocity through the face of the hood by taking a detailed velocity
traverse. Divide the face area of the hood into equal increments. A
six-inch grid is recommended for an accurate traverse.
5. Position the AirGard
drafts are very low and the curved probe will not interfere with the
work area.
6. Attach the probe to the hood so the open end is inside the hood and
faces downstream.
7. Verify that the AirGard
at the face of the hood in step 4. If the reading by the AirGard
monitor does not match the reading measured in step 4, move the
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AirGard monitor along the face of the hood until it indicates the
same value as measured with the thermo-anemometer.
8. When the AirGard
with the thermo-anemometer, mount it in place using the mounting
screws and the curved probe using the fitting provided.
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monitor at a location for mounting where local
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monitor reads the same velocity measured
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monitor's indication matches the value measured
4
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monitor using the flexible
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monitor should indicate zero
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monitor
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