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Operation
Each AccuFlow is programmed at a Halton Company manufacturing facility. To program the device,
the Bluetooth feature is enabled and personnel input necessary parameters. Programming can be
completed with a Windows Mobile enable smart-phone (PDA) or PC with the required software installed.
Programmed values include: Design Airflow, High Airflow Delta, Low Airflow Delta and K-Factor.
Design Airflow is determined using the Halton HELP software and the Low and High Airflow Delta are
defined as +/- ten percent of design airflow. K-Factors have been determined by Halton Research and
Development personnel.
Bluetooth capability also allows an Authorized Service Agent to determine the airflow of an exhaust
hood on site if an alarm is present. This information can be conveyed to Halton personnel for
troubleshooting.
Alarms
Alarms are enabled when design airflow is above or below ten percent of design airflow. An alarm is
visible on the front of the Accuflow, see Photo 3 below.
Photo 3 – AccuFlow Alarm Location
Indications of alarm status (under or over design) are printed on the device. If the LED indicator is
steady, the hood is at design airflow. Alarms are differentiated by the number of blinks per second;
1 blink per second indicates the hood is under design, 2 blinks per second indicates the hood is over
design.
