Summary of Contents for Air Monitor VOLU-flo/OAM II
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VOLU-flo/OAM II Outdoor Airflow Measuring System Application Guide www.airmonitor.com • 1-800-AIRFLOW...
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Pitot style airflow elements. Air Monitor’s VOLU-flo/OAM II Airflow Measuring System is a complete system specifically designed to provide accurate airflow measurement in challenging outdoor air applications. The OAM II consists of a dedicated transmitter, reference temperature sensor and uni-sensor flow element.
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OPERATING MODES AND INLET TYPES OPERATING MODES The OAM II can be factory configured to operate in four different modes. Minimum Airflow Measurement – This mode provides airflow measurement from 100 to 600 FPM, making it ideal for this application. Extended Airflow Measurement –...
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The use of expanded metal across the inlet or an airflow station provided by Air Monitor will greatly simplify the installation process and eliminate the need for field characterization. If an OAM II Airflow Station is used it can be sandwiched between the rain hood and the AHU’s OA damper.
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Ducted Inlets: OAM II Airflow Stations installed in ducts should be located where there is no interference into the area where the uni-sensor is installed. VOLU- o/OAM II STATION FLOW Plenum Inlets: When mounting an OAM II airflow station directly to a damper casing, confirm there is sufficient clearance between the fully open damper blades and the uni-sensor probe.
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Multiple Inlets: Uni-sensors installed on each inlet are connected via manifolds or tees to provide averaged sensor signals to the transmitter. The area of each inlet must be identical and inlet dampers must operate in unison. SIGNALS MANIFOLDED TOGETHER UNI-SENSOR MOUNTED ON EACH INLET Inlets with an Aspect Ratio >...
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OAM II Airflow Station (shown with a single uni-sensor) LOW PRESSURE PORT TEMPERATURE HIGH PRESSURE PORT SENSOR VOLU-flo/OAM ll OU TSID E AIR MONITOR FLOW FLANGE UNI-SENSOR EXPANDED METAL OAM II Airflow Station OAM II stations are built to order and are delivered fully assembled. The number of sensors provided varies based on the size and shape of the station.
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Uni-sensors are ideal for retrofit installations because they are easily mounted to a variety of existing inlet types. Please Note: Air Monitor’s OAM II system is provided with an easy-to-use field characterization program. Test and balance flow data is entered, automatically adjusting the factory OAM II response curve.
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