AVFS-2 | Thermo air flow switch | 24 VDC. | Dwyer
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Brand: DwyerSKU: AVFS-2

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AVFS-2 | Thermo air flow switch | 24 VDC. | Dwyer

Thermo air flow switch, 24 VDC.

Dwyer | AVFS-2
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Overview

Details for AVFS-2

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Thermo air flow switch | 24 VDC.

Series AVFS Air Flow Switch

Monitors Flow in Ducts with Contact Output and Local LED Indication

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.

Product Applications

  • Fan monitoring
  • Filter monitoring
  • Damper feedback
  • Air handlers
  • 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

Series
AVFS Air Flow Switch
Category/Type
Air Quality
Type
Air Flow Switches
Series
AVFS Air Flow Switch
Air Velocity Range
197-1969 FPM (1-10 m/s).
Temperature Limits
5 to 122°F (-10 to 50°C).
Humidity Limits
0-90% RH.
Wetted Materials
PBT body; titanium sensor.
Pressure Limit
14.7 psig (1 bar).
Housing
PBT.
Repeatability
±5% FS.
Switch Type
N.O. SPST.
Electrical Rating
3 A @ 30 VDC/250 VAC.
Response Time
3-60 seconds. Varies with flow and set point.
Power Requirement
AVFS-1: 80 to 250 AC/DC (47 to 63 Hz AC). AVFS-2: 24 VDC ±25%.
Power Consumption
3 VA.
Electrical Connection
6.5' (2 m) cable.
Enclosure Rating
IP65.
Display
1 Red LED/1 Green LED.
Weight
7.2 oz (203 g).
Agency Approvals
CE.

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