TRF-9311C-AMD | TrueFit AMD: 4 Remote Airflows, 1 Integrated Airflow, MSTP

TRF-9311C-AMD airflow measurement devices measure up to five airflows at a single location within an HVAC system— such as fan inlets, DOAS (Dedicated Outdoor Air Systems), ducts, etc.—using velocity pickups.

A TRF-9311C-AMD is often installed to provide airflow measurements for a TrueFit™ Airflow Measurement System (AFMS) in addition to the system’s OA, RA, and SA measurements.
Models have one integrated pressure sensor and can receive input from up to four external pressure transducers.

For fan inlet applications, if piezo rings are not already provided, SSS-111x airflow pickup tubes (with mounting feet) can be mounted on the fan bell in a pitot array. For duct applications, use SSS-101x airflow pickup tubes (with mounting flanges). The parallel array of SSS-1xxx airflow pickup tubes connects via poly tubing to the TRF-9311C-AMD’s differential air pressure ports, or an external pressure transducer, such as the TPE-1475-21 or TPE-1475-22.