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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DS_641Rev.1
DS_641Rev.1

Model

Model Description
641-12 Air velocity transmitter, 12″ (304.8 mm) probe length.
641-12-LED Air velocity transmitter, 12″ (304.8 mm) probe length, with LED display.
641-18 Air velocity transmitter, 18″ (457.2 mm) probe length.
641-18-LED Air velocity transmitter, 18″ (457.2 mm) probe length, with LED display.
641-24 Air velocity transmitter, 24″ (609.6 mm) probe length.
641-24-LED Air velocity transmitter, 24″ (609.6 mm) probe length, with LED display.
641-30 Air velocity transmitter, 30″ (762 mm) probe length.
641-30-LED Air velocity transmitter, 30″ (762 mm) probe length, with LED display.
641-36 Air velocity transmitter, 36″ (914 mm) probe length.
641-36-LED Air velocity transmitter, 36″ (914 mm) probe length, with LED display.
641-6 Air velocity transmitter, 6″ (152.4 mm) probe length.
641-6-LED Air velocity transmitter, 6″ (152.4 mm) probe length, with LED display.