The AFS is a general purpose airflow proving switch designed for HVAC,more specifically the detection of blocked filters and fan suction,air flow monitoring in ducts,pipes tunnel and other energy management applications.It can be configured to positive,negtative or differential pressure.Each side of the diaphragm accept a 0.25'' OD tubing.The cover prevents accidental contact with the switching terminal screws as well as the set point adjustment screw.

Features:
1) Field ajustable range: 0.12mbar±0.05mbar to 30mbar
2) Electrical rating: 300 VA pilot duty at 115-277V AC, 10amp, non-inductive,
277V AC, 60Hz;

3)Contact Arrangement: SPDT, SPST;

4)Operating Temperature Range: -40~82C;

5)Sample Line Connections: Ferrule and nut compression type connectors that accept 0.25" OD rigid tubing, or quick connection tube.