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COMPACT FAN AND FILTER FAN
AIR FLOW MONITOR
FSW800
Series
U Reliable Mechanical
Switch Contact
U Small Size
U Economical
U Easily Installs
Via Clip or Clamp
U Versatile Fields
of Application
The FSW800 Series air-flow monitor
provides a simple but reliable
alternative to indicate positive or
negative air flow of fans. When
properly installed and connected
in series with an optical (i.e. LED)
or audible signaling device, a bidirectional switch will activate an
electrical contact if the air flow of
the fan falls below 8.2 ft/s, thus either
turning the signaling device on or off.
Mounting Position: Air-flow monitor
opening perpendicular to air flow
Operating Temperature:
-20 to 50°C (-4 to 122°F)
Dimensions: mm (inch)
Wiring Example
e.g. signal
device
FSW801 shown larger than actual size.
Storage Temperature:
-20 to 80°C (-4 to 176°F)
Protection Type: NEMA 1 (IP 20)
Agency Approvals: UL and VDE
7.5 (0.3)
34 (1.3)
Air-flow monitor integrated
in protective grill
92 x 92/120 x 120
(3.62 x 3.62/4.72 x 4.72)
B
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 (1 m/s)—fixed
Contact Resistance Incl. Wire:
370 m (1214')
Service Life: >100,000 cycles
Maximum Switching Capacity: 10 W
(resistive load)
Maximum Switching Voltage: NC, AC/
DC 240 V/NO, DC 60V
Maximum Switching Current: NC, DC
500 mA/NO, DC 170 mA
Connection: 2 x single strand AWG
26, length 500 mm (20"), tip of stranded
wire stripped/tinned 5 mm (0.20")
Mounting: Attachment clamp and/or
clip, or integrated in protective grill
Housing: Plastic, UL 94HB, black
Dimensions: 34 x 17.5 x 7.5 mm
(1.3 x 0.7 x 0.3")
+
-
17.5 (0.7)
80 x 80
(3.15 x 3.15)
To Order Visit omega.com/fsw800_series for Pricing and Details
Model No. Description Weight
FSW801 Air-flow switch, NC with mounting clip and clamp 6 g (0.2 oz)
FSW802 Air-flow monitor, NO with mounting clip and clamp 6 g (0.2 oz)
FSW803 Air-flow monitor, NC with 80 x 80 mm 20 g (0.7 oz)
FSW804 Air-flow monitor, NO with 80 x 80 mm (3.15") 20 g (0.7 oz)
FSW805 Air-flow monitor, NC with 92 x 92 mm (3.62") 20 g (0.7 oz)
FSW806 Air-flow monitor, NO with 92 x 92 mm (3.62") 20 g (0.7 oz)
FSW807 Air-flow monitor, NC with 120 x 120 mm (4.72") 31 g (1.1 oz)
FSW808 Air-flow monitor, NO with 120 x 120 mm (4.72") 31 g (1.1 oz)
Comes complete with operator’s manual.
Ordering Example: FSW803, air-flow monitor, NC with 80 x 80 mm finger guard.
(3.15") finger guard
finger guard
finger guard
finger guard
finger guard
finger guard
B-X