AD-1272 Advanced Thermal Dispersion Probe Airflow Measuring System Technical Bulletin
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4. Scroll to the System at Point 1 submenu selection.
5. Press ENTER. Run the air handling system unit to the first K-Factor setpoint. Once the appropriate velocity is
displayed on the external device, press ENTER to store the sensor data and measured velocity in FPM as the
reference value for calculating the K-Factor equation. The display indicates the value is stored and displays the
value for 3 seconds.
Note: Allow the system at least 60 seconds after a velocity state change to balance the displayed readings.
6. The display returns to the K-Factor Configuration submenu. Scroll to the Point 1 Velocity submenu selection.
7. Press ENTER to enter the first measured K-Factor setpoint that is acquired from an external device. Press UP
or DOWN to modify the currently selected digit.
Note: The left side of the display indicates the measured value and the right side shows the corresponding
reference value that was recorded for that point.
8. Press ENTER on the last digit to confirm the value and return to the K-Factor Configuration submenu.
9. If the number of data points from Step 2 was set for more than one, repeat Steps 4 through 8 for each point.
Point 2 must be higher than point 1 and point 3 must be higher than point 2. When all points are recorded,
continue to Step 10.
10. Press UP or DOWN to scroll to the Generate K-Factor submenu selection.
Figure 48: System at Point 1 Selection Screen
Figure 49: Point 1 Recorded Velocity Screen
Figure 50: Point 1 Velocity Selection Screen
Figure 51: K-Factor Setpoint Screen
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