Flowmeters (Variable Area, In-Line, Dial, Orifice Plate, Venturi & Totalizers), Flow Sensors (In-Line), Sight Flow Indicators, Flow Switches (Paddle, Thermal & Shuttle/Piston), Flow Transmitters (In-Line, Turbine, Paddlewheel, Electromagnetic & Ultrasonic), Watermeters, Mass Flowmeters/Controllers

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SERIES 641 , DWYER ,AIR VELOCITY TRANSMITTER

SERIES 641 | DWYER

AIR VELOCITY TRANSMITTER
High Accuracy, Field Selectable Ranges4

FEATURES/BENEFITS
• Ranges from 250 FPM (1.25 MPS) to 15,000 FPM (75 MPS)
• Optional bright LED display
• Easy push button set-up
• Compact housing
• 4 to 20 mA output
• Digital filter for signal damping
APPLICATIONS
• Exhaust stack flow monitoring
• Air control in drying processes
• HVAC air velocity measurements
• Fan supply and exhaust tracking
• Clean room ventilation monitoring

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SERIES AVU , DWYER , AIR VELOCITY TRANSMITTER

SERIES AVU | DWYER

AIR VELOCITY TRANSMITTER
Ideal for Building Automation Systems, ±5% or ±8% Full Scale Accuracy

FEATURES/BENEFITS
• 4 to 20 mA or 0 to 10 V output versions
• NEMA 6 (IP67) enclosure rating
• AC or DC powered (loop version DC only)
• 5% or 8% accuracy
APPLICATIONS
• Zone control in HVAC systems
• Supply and exhaust fan tracking
• Clean room systems
• Air pollution studies and manufacturing

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SERIES AVFS , DWYER , AIR FLOW SWITCH

SERIES AVFS | DWYER

AIR FLOW SWITCH
Monitors Flow in Ducts with Contact Output and Local LED Indication

FEATURES/BENEFITS
• Integral red/green air flow status LED’s
• Flush sensor design limits issues due to dust or particulate in the air flow
• IP65 construction
APPLICATIONS
• Fan monitoring
• Filter monitoring
• Damper feedback
• Air handlers2

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