Page 100
17. N5402-REV2 & N5302 Flow
Sensor
The ventilator employs a low dead space (1ml),
heated wire anemometer sensor. To minimise dead
space the sensor body fills much of the ET tube
adapter and patient circuit connection.
SLE offers two types of sensor the N5402-REV2
which is a reusable sensor or the N5302 which is a
single use flow sensor.
The flow sensors are designed to measure flow
rates that do not exceed 30 l/min.
Before re-insertion into the patient circuit the user
must calibrate the flow sensor.
17.1 Calibration of the Flow Sensor
To calibrate the flow
sensor, press the
Options and Service
Data Button
on the
Mode Panel. This
activates the Services
panel.
Pressing the Flow button will activate the Calibrate
flow sensor panel.
Make sure that there
is no flow passing the
through the sensor.
For this purpose,
occlude the flow
sensor by holding it
between two fingers,
closing both ends as
shown in the
following picture.
With the sensor
now occluded
press the
Calibrate button
(A). This initiates
calibration cycle
for the flow
sensor.
Keep the sensor
occluded until the
words Calibration
Complete appears
above the Calibrate
button.
The sensor has now
been calibrated and
can be fitted into the
patient circuit.
Note: The N5302 flow sensor is a single use
device. It is supplied sterile. The sensor can
be cleaned during use, but cannot be re-
sterilized. It should be discarded after use as
clinical waste. The N5302 flow sensor can be
cleaned by rinsing with sterile water.
Warning: Do not use this flow sensor to
monitor patients with ET tube sizes larger
than 5.0 mm or that require more than 30 l/
min.
Warning: The flow sensor can not be
calibrated whilst fitted in the patient circuit.
Refer to ’14.1.18 Flow sensor removal for
suctioning or re-calibration, pausing
ventilation’ on page 71 or ’14.1.19 Flow
sensor removal for suctioning or re-
calibration but continuing ventilation’ on
page 72.
Note: The flow sensor should be calibrated
every 24 hours whilst in use, if the patient’s
condition permits.
Note: The Calibration procedure is the same
for the N5402-REV2 and N5302 sensors.
To Next Page
Loading...
