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