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Series AVFS Air Flow Switch

Brand: Dwyer Instruments, LLC

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The Series AVFS Adjustable Air Flow Switch is specifically designed to monitor air flow in ducts and provides a 3 A contact output to indicate a change or loss of flow.

The AVFS provides a ±5% set-point repeatability across a full scale range of 1-10 m/s (197-1969 fpm) and includes a mounting bracket for quick duct mounting.
Features
  • Integral Red/Green Air Flow Status LED's
  • Flush sensor design limits issues due to dust or particulate in the air flow
  • IP65 Construction
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The Series AVFS Adjustable Air Flow Switch is specifically designed to monitor air flow in ducts and provides a 3 A contact output to indicate a change or loss of flow.

The AVFS provides a ±5% set-point repeatability across a full scale range of 1-10 m/s (197-1969 fpm) and includes a mounting bracket for quick duct mounting.
Features
  • Integral Red/Green Air Flow Status LED's
  • Flush sensor design limits issues due to dust or particulate in the air flow
  • IP65 Construction

Specifications

Approvals & Certifications

  • CE

Consumption

  • 3 VA

Display

  • 1 Green LED
  • 1 Red LED

Electrical Connectors

  • 6.5 feet Cable

Electrical Rating

  • 3 A at 30 Vdc / 250 Vac

Enclosure, Body Material

  • PBT

Environmental Protection

  • IP65

Flow Rate

  • 197 to 1969 fpm (1 to 10 m/sec) - Air Velocity

Humidity

  • 0 to 90 % Relative Humidity

Power Requirement

  • 24 Vdc ± 25 %
  • 80-250 AC/DC

Repeatability

  • ± 5 % of Full Scale

Response Time

  • 30 to 60 seconds

Sensor / Probe Material

  • Titanium - Wetted Materials

Supply Pressure

  • psig: 14.7 (kPa: 100, bar: 1)

Switch Type

  • SPST Normally Open

Temperature Range

  • -10° to 50° C (14° to 122° F)

Typical Applications

  • Fan Monitoring
  • Filter Monitoring
  • Damper Feedback
  • Air Handlers