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5.2.2. Flow Correction
The Flow Correction Menu was incorporated into the AAON Airflow Signal Processor to give the user
an easy way to make corrections to the display and output without changing the Operating Range Value
entered by the factory or user. The Flow Correction Menu would be used to correct for a constant error
from zero to the entered Operating Range Value.
5.2.2.1. Flow Correction (K-Factor)
If the user knows the % change required to match the balancers reading, select the K-Factor Menu and
enter this value for the K-Factor. The minimum and maximum allowable K-Factor Value is displayed in
the K-Factor Menu.
Field Setup
Menu
Flow Correction
Flow Correction
AutoZero
K-Factor
K-Factor Range
Temp Comp.
(0.85 / 1.3)
Display Filter
K-Factor Calc.
K=(01.000)
5.2.2.2. Flow Correction (K-Factor Calculator)
If the new K-factor Value needs to be calculated, select the K-Factor Calc. Menu. Enter the Displayed
Value on the AAON Airflow Signal Processor and actual Measured Value, press Enter and the %
change will be calculated and stored as the new K-Factor Value.
Field Setup
Menu
Flow Correction
Displayed Value
AutoZero
K-Factor
(000,000)
Temp Comp.
Measured Value
Display Filter
K-Factor Calc.
(000,000)
-FLOW CORRECTION EXAMPLE-
The balancer is consistently measuring a value of 9,500 CFM, which is 500 CFM less than the 10,000
CFM value on the AAON Airflow Signal Processor display. The user would then perform the following
math function: Measured Value / Displayed Value = K-Factor so 9,500 CFM / 10,000 CFM = 0.950.
The user would enter 0.950 for the K-Factor Flow Correction. If the K-Factor Calculator is used, the K-
Factor Flow Correction would automatically update the K Factor.