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AVFS-2 | 24VDC THERMO AIR FLOW SWITCH | Dwyer Instruments

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Overview

Details for AVFS-2

Precise Airflow Monitoring: Dwyer Instruments AVFS-2 Thermal Air Flow Switch The Dwyer Instruments AVFS-2 Thermal Air Flow Switch is a highly accurate 24VDC sensor designed to measure airflow velocity and detect the presence or absence of air movement. Its robust design and simple operation make it an ideal tool for various industrial and HVAC applications where precise airflow monitoring is crucial. Key Features: - Measures air velocity and airflow presence - Simple and reliable operation - 24VDC power supply - Durable construction for industrial environments - Compact size for easy installation - Suitable for duct or pipe mounting Benefits: - Accurately monitors airflow to ensure optimal system performance - Detects airflow faults and prevents potential equipment damage - Compact design fits seamlessly into confined spaces - Rugged construction withstands harsh industrial conditions - Easy installation for quick integration into your system Applications: - HVAC systems - Industrial fans and blowers - Process control - Air quality monitoring - Exhaust systems Shop our HVAC supply store for the Best Prices and Fast Shipping on Dwyer Instruments Products!

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.