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b1 Airflow Sensing Elements
b1 Flow Transducers
b1 Space Pressure Monitors
Outdoor Airflow Measurement System
OAFE-1550 Outdoor Airflow Measurement System
The OAFE-1550 is an AMCA certified outdoor airflow measurement system capable of producing an overall ±0.5% accuracy through the velocity range of 200 to 1,200 fpm. The airflow measurement system consists of an integral signal processor and multipleairflow elements, factory mounted and pre-piped in a casing designed for flanged connection to ductwork, control dampers, louvers, etc. An optional inlet bell is available for plenum applications. The signal processor accepts a temperature input signal for air density compensation for standard (scfm) or actual (acfm) airflow calculations.

Device monitoring and configuration can also be performed by a building management system through either a LonWorks®, BACnet-MS/TP® Master or Modbus® RTU Slave communication network.  An optional controller is available that utilizes a proprietary algorithm which results in true three mode control incorporating proportional band, integral (reset) and inverse derivative (P, I, 1/D) controller functionality and tuning. The controller will provide responsive modulation of a control damper or variable speed drive guaranteeing that a constant airflow is maintained. An economizer override option is available that allows the building management system to override the minimum outdoor airflow rate.

Cost of Poor IAQ
Installation Guidelines