Respiration Rate Sensor
012-07034A
4
Mounting on an Experimental Apparatus
Use the 1/4-20 threaded connector located on the
bottom of the sensor box to secure the Pressure Sensor
to an experimental apparatus (Figure 5). The
alignment hole fits over an alignment pin included on
some PASCO apparatuses.
Using the Respiration Belt
To measure respiration rate (breaths per minute), place
the respiration belt around your chest or upper
abdomen, connect one tube from the belt to the low
pressure sensor, inflate the respiration belt with the
squeeze bulb, and monitor the respiration rate with the
computer interface.
Placing the Respiration Belt
Arrange the belt around your body so the part of the
belt that has the tubes on it is on the right side of
your body with the tubes hanging down from the
bottom edge of the belt.
Place the part of the belt that has the tubes against
your chest first. When this part is against your
chest, the strips of ‘pile’ should face away from
your chest. Then place the left side of the belt over
the first part so the hook-and-pile strips match each
other. The belt should be snug around the chest, but
not so tight that breathing is restricted. See Figure’s
6 and 7.
Connecting the Belt to the Sensor
Align the quick-release connector on the end of one of
the respiration belt’s tubes with the pressure port
connector at the front of the pressure sensor unit.
alignment hole
1/4-20 threaded
connector
Figure 5
Mounting connector and alignment hole
Figure 6
Connecting the Respiration Belt, Right Side First
Inflating the Respiration Belt
Turn the knurled knob that is on the squeeze bulb fully
clockwise to close the release valve. Squeeze the bulb
several times to inflate the rubber bladder. You may
have to squeeze the bulb more than twenty times in
order to inflate the bladder. When the bladder is
inflated, the belt will be more snug against your chest.
Warning: Over inflation can damage the air bladder.
Deflating the Respiration Belt
Turn the knurled knob on the squeeze belt
counterclockwise to open the release valve. Use your
hands to push the air out of the bladder. You can also
deflate the respiration belt by disconnecting the tube
from the pressure port on the sensor. Turn the quick-
release connector counterclockwise to disconnect it
from the pressure port.
