Dwyer 641 Air Velocity Transmitter

Heated mass flow sensor precisely measures air flow over 16 field selectable ranges .

Dwyer 641 Air Velocity Transmitter with Display
Dwyer 641 Air Velocity Transmitter

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Manufactured

By Dwyer Instruments

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Features

For use with clean air and compatible, non-combustible gases
Accurate up to ±3%
1.5 second response time
Process temperature limit: -40 to 212°F
Pressure limit: 100 psi (6.89 bar) maximum
Ranges to 15,000 FPM or 75 MPS
Optional bright LED display
Easy push button set-up
Compact housing
4-20 mA output, isolated 24V source, 3 or 4-wire connection
Digital filter for signal damping
Screw terminal electrical connection
1/2" male NPT process connection

The Dwyer 641 Air Velocity Transmitter is the ideal instrument for monitoring air flow. This transmitter uses a heated mass flow sensor which allows for precise velocity measurements at various flow rates and temperatures. The 641's 16 field selectable ranges provides it the versatility to be selected for several air flow applications. The optional LED produces a complete, low-cost solution for local indication of air flow.

The Dwyer 641 air velocity transmitter is ideal for application such as: exhaust stack flow monitoring, air control in drying processes, HVAC air velocity measurements, fan supply and exhaust tracking, clean room fresh air supply, ensuring proper lab hood exhaust flow rates, and others.