Configuring The K-Factor - Johnson Controls AD-1272 Technical Bulletin

Table 12: K-Factor Configuration Submenu Selections and Configurable Options
K-Factor Configurable Options
Configuration
Submenu
Selections
Select On or Off.
K-Factor Enable?
Select between Yes or No.
Calculate K-Factor
Update the currently selected value.
1
Manual Gain
Update the currently selected value.
1
Manual Offset
Select between one to three points for calculating the K-Factor.
Number of Data
2
Points
Record the current velocity over the sensors as reference point 1.
2
System at Point 1
Update the currently selected value. Reference point 1 is displayed on the right side and the
2
Point 1 Velocity
measured value is entered on the left.
Record the current velocity over the sensors as reference point 2.
2
System at Point 2
Update the currently selected value. Reference point 2 is displayed on the right side and the
2
Point 2 Velocity
measured value is entered on the left.
Record the current velocity over the sensors as reference point 3.
2
System at Point 3
Update the currently selected value. Reference point 3 is displayed on the right side and the
2
Point 3 Velocity
measured value is entered on the left.
Calculate and update the K-Factor values used then display the calculated values.
2
Generate K-Factor
1. This submenu selection only appears when Calculate K-Factor is set to No.
2. This submenu selection only appears when Calculate K-Factor is set to Yes.

Configuring the K-Factor

1. In the Operator Menu, press UP or DOWN to scroll to the K-Factor Configuration submenu.
2. Press ENTER to view the K-Factor Configuration submenu. Scroll to the K-Factor Enable? submenu
selection.
AD-1272 Advanced Thermal Dispersion Probe Airflow Measuring System Technical Bulletin
Figure 38: K-Factor Configuration Selection Screen
Figure 39: K-Factor Enable Selection Screen
25