AFM Series Air Flow Monitor Dimensions: mm (inch) Air-ﬂow monitor integrated in a protective grill Wiring Example 92 x 92 / 120 x 120 (3.62 x 3.62 / 4.72 x 4.72) e.g signal device 34 (1.3) 17.5 (0.7) + − 7.5 (0.3) 80 x 80 (3.15 x 3.15) The air-ﬂow monitor provides a simple alternative to indicate positive or negative air ﬂow of fans or blowers. When properly installed and connected in series with an optical (i.e. LED) or audible signaling device, a bi-directional switch will activate an electrical contact if the air ﬂow of the fan falls below 8.2 ft/s, turning the signaling device on or off. The AFM monitor can also be attached to an existing grill or guard. Speciﬁcations Contact Type: Reed/magnet contact NC (Normally Closed): Contact open with air ﬂow NO (Normally Open): Contact closed with air ﬂow Switching Threshold of Air Flow Speed: >8.2 ft/s (2.5 m/s) Hysteresis: 3.3 ft/s (1m/s) - ﬁxed Contact Resistance Incl. Wire: 370m (1214”) Service Life: >100,000 cycles Maximum Switching Capacity: 10W (resistive load) Maximum Switching Voltage: NC - AC/DC 240V NO - DC 60V Maximum Switching Current: NC - DC 500mA NO - DC 170mA Model No. AFM-01NC AFM-01NO AFM-80NC AFM-80NO AFM-92NC AFM-92NO AFM-120NC AFM-120NO AFM-KIT Orion Fans 10557 Metric Drive Dallas, TX 75243 800.323.2439 Connection: 2 x single strand AWG26, length 500mm (20”), tip of stranded wire stripped/tinned 5mm (0/20”) Mounting: Attachment clamp and/or clip, or integrated in protective grill Mounting Position: Air-ﬂow monitor opening perpendicular to air ﬂow Operating Temperature: -20 to 50°C (-4 to 122°F) Storage Temperature: -20 to 80°C (-4 to 176°F) Housing: Plastic, UL 94HB, black Dimensions: 34 x 17.5 x 7.5mm (1.3 x 0.7 x 0.3”) Protection Type: NEMA 1 (IP 20) Agency Approvals: CE RoHS Compliant Description Weight Air-ﬂow switch, NC with mounting clip and clamp (for attaching to existing fan assembly) 6 g (0.2 oz) Air-ﬂow monitor, NO with mounting clip and clamp (for attaching to existing fan assembly) 6 g (0.2 oz) Air-ﬂow monitor, NC with 80 x 80mm (3.15”) plastic ﬁnger guard 20 g (0.7 oz) Air-ﬂow monitor, NO with 80 x 80mm (3.15”) plastic ﬁnger guard 20 g (0.7 oz) Air-ﬂow monitor, NC with 92 x 92mm (3.62”) plastic ﬁnger guard 20 g (0.7 oz) Air-ﬂow monitor, NO with 92 x 92mm (3.62”) plastic ﬁnger guard 20 g (0.7 oz) Air-ﬂow monitor, NC with 120 x 120mm (4.27”) plastic ﬁnger guard 31 g (1.1 oz) Air-ﬂow monitor, NO with 120 x 120mm (4.27”) plastic ﬁnger guard 31 g (1.1 oz) Kit includes air-ﬂow switch (AFM-01NC), clip, three plastic guards (80, 92 and 120mm), LED and holder, buzzer, switch and wall-mount power supply. Delivered with a complete 10-foot wire assembly. www.orionfans.com A division of Knight Electronics, information and data are subject to change without prior notiﬁcation.