Warren G-V Air Flow Sensing Switch N.O. Electro-Mechanical 9pin FS-2101

Warren G-V Air Flow Sensing Switch N.O. Electro-Mechanical 9pin FS-2101

FS SERIES
Description: FS airflow sensors are cooling effect monitors
that provide a positive indication of the presence of airflow.
Independent of the air temperature, these units are used to
operate an alarm or shutdown device when airflow drops below
a preset level.
Operations: FS airflow sensors utilize a differential expansion
principle in which the air entering the inlet circulates and
cools an electrically heated internal element. Varied voltage
source designs available. When the airflow drops below the
nominal setting, the temperature of the heated element rises
quickly causing the operation of a contact (either N.O. or N.C.).
This inherent thermal delay avoids contact operation on brief
interruptions of airflow. On restoration of air flow the sensor will
automatically reset after a brief cooling period.

Advantages:
-Economical
-Self contained sensor/switch requires no additional circuitry
-Not sensitive to air temperature.
-Sturdy construction.
-Plug in mounting, sockets and mounting assemblies available
from manufacturer.
-Minimum interference with airflow.
-UL recognized component.
-Mounting - Warren G-V makes sockets (9 pin style) available as well as a
mounting-assembly complete with terminal posts for input and
alarm leads.

SPECIFICATIONS
Heater Voltage: 5V., 12V., 24V., or 115V. AC/DC
Input Power: 2.5 Watts, normal
Contact Rating: 2A. resistive up to 115V. AC
1A. resistive up to 32V. DC
Usable Voltage Range: ±10% of nominal
Setting: Per table, page 3
Response Time: 1 to 20 seconds at rated voltage (depending on
setting and air velocity prior to stoppage)
Temperature Range: 0°C to 85°C

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