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2-6
Airnet® II 4-Channel Particle Sensors Operations Manual
Chapter 2
: Unpacking and Installation
Installation
Connecting the Power Supply
After the Airnet II 4-Channel particle sensor has been physically installed with its
bracket, connect the sensor to an appropriate power source (PoE or optional 24 VDC).
Power over Ethernet requires the use of an internet hub or power injector designed to
operate with such systems, as well as the use of a CAT5 shielded cable.
After the supply cable is connected, the sensor’s
Status
LED should illuminate
indicating that the unit is receiving power.
If the
Status
LED does not illuminate, test the power source and the power supply. If
the power source and power supply are all right, the unit may be faulty.
Connecting the Sample and Vacuum Tubing
The plumbing connections are the following:
NOTE:
After completing the cabling for the 12-pin Molex Micro Fit
connector (for 24 VDC or 4-20 mA), install the ferrite as close as
practical to the connector (that will still allow you to insert and/
or remove the connector in the future).
Sample inlet
The sample inlet can be used with the sampling probe alone or with
tubing and the sampling probe.
NOTE: Ensure that the Airnet II 4-Channel particle sensor’s sampling
probe is pointed into the airflow to be monitored.
House vacuum source
The Airnet II 4-Channel particle sensor has a barbed vacuum fitting for
connection of 1/4” ID tubing. See Figure 1-2, “Connectors on the back
of the Airnet II 4-Channel particle sensor (Shown with 4-20 mA
option),” on page 1-3. The vacuum source should be > 12 inches of Hg.