TSI Instruments AIRFLOW Instruments ProHood PH720 - Error Display

Chapter 6: Flow Measurements Using the Capture Hood 45
Error Display
If the limits of allowed flow parameters are exceeded during a backpressure compensated measurement,
an error message will be displayed. This can happen if there are flow reversals during the measurement or
other changes in the flow during the measurement (such as changing a damper position), or as a result of
other operator errors.