Precautions for measurements, Duct shape / size input – KANOMAX 6036 Multi-function thermal anemometer User Manual User Manual

Page 15

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14

Getting Started

Precautions for Measurements

Air Velocity Measurement Precautions

The probe has its own directivity

characteristics. Make sure that the direction
mark is facing into the airflow (for details of the
directivity characteristics, refer to “Probe
Directivity (Air Velocity)” on P.31). If you are not
sure of the airflow direction, slowly rotate the
probe and select the point where you get the
maximum velocity reading,

The probe compensates air velocity change due

to temperature change by using the air velocity sensor with

the temperature compensation sensor. In order to obtain this
compensation effect, it is required that both sensors are evenly

exposed to the airflow under the same temperature conditions.

For measurements in an environment with rapid air temperature

changes, measure for at least 20 seconds and wait for the reading to

stabilize before starting the actual measurement (i.e. the data will
not be accurate until the probe has time to acclimate to the

environment.).


Air Temperature Measurement Precautions

The response time for temperature measurement improves as the

air velocity increases. Wait for the reading to become stable before

taking a measurement.

When no airflow is present, the air temperature reading may be

higher than the actual temperature due to the heat generated by the

air velocity sensor. It is recommended that you SLOWLY wave the

probe to create an environment with approx. 0.1m/s airflow to
obtain accurate temperature readings.

Duct Shape / Size Input

Before measuring the volumetric flow rate, duct shape and size

settings must be entered.

Duct Shape: There are two duct shapes – Rectangular and
Circular, which are indicated as

and

at the lower right

corner of the LCD screen.

Size of Duct: For a rectangular duct, set the width (W) and height

(H). For a circular duct, set the diameter (D).
Size Range: Maximum dimension of a side: 2550mm

Input Increment: Range of 0 to 1000mm: 1mm

Range of 1000 to2550mm: 10mm

*When inch is selected for the input unit, the maximum dimension

will be 255 inch.

Input Increment: Range of 0 to 100inch: 0.1inch

Range of 100 to 255inch: 1inch

Direction
Mark

Air Flow

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