venTest OPERATORS MANUAL
4.14 Sensor Startup
This section covers the startup of the various sensors.
4.14.1 FlowSense Airflow Sensor
This section is valid for all FlowSense Sensors independent from measurement range and gas
types.
Connect the sensor to the flow sensor connector to the back of the venTest base unit. As soon as
the sensor is detected, the sensor symbol appears in the Status. For the FlowSense Sensor
High-Flow 'FSH' is displayed and for the FlowSense Sensor Low-Flow 'FSL'.
After connecting, the sensor shows its initialization by alternately flashing the flow direction LEDs
on the sensor. When initialization is completed, both LEDs go off and the sensor has reached its
specified accuracy after a setup time of 15 minutes.
In subsequent operation of the sensor, the flow direction is indicated by the corresponding LED as
shown above.
WARNING!
Tubing connected to the sensor should be as straight as possible
to prevent incorrect measurements.
Figure 39
Operation/Chapter 4
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