Microprocessor Controller for DOAS
40
®
Appendix: GreenTrol
®
Airflow Monitoring Quick Start
The GreenTrol
®
airflow monitoring station measures
airflow using advanced thermal dispersion technology.
An integral LCD display provides a local indication of
airflow measurement and device configuration. The
airflow monitor also features Modbus communication
allowing the main unit microprocessor to monitor the
airflow as well. The GreenTrol also accepts up to two
airflow probes for averaging.
GreenTrol Airflow Monitor functions:
• LCD readout of measured airflow
• Dual airflow probe averaging
• Modbus connectivity
Display and Navigation
The LCD screen will by default show the current airflow that is being measured. To enter the menu to set up the
monitoring station the user must remove the front cover of the GreenTrol to uncover the navigation buttons. Press
and hold the UP and DOWN buttons at the same time for 3 seconds to enter the menu.
Enter Button Function
- The ENTER button allows the user to go into the selected menu or function, as well as
save the selected value.
Up/Down Button Function
- The Up/Down buttons are used to navigate the menu and to change values in the
menu.
Esc Button Function
- The ESC button allows the user to exit the current menu or function.
