Airnet® II 4-Channel Particle Sensors Operations Manual
1-1
Chapter 1
Getting Started
The Airnet II 4-Channel particle sensor is a laser-optical aerosol particle sensor that
accurately detects, counts, and measures particles suspended in air. This manual
includes information on operating the following Airnet II 4-Channel models:
•
201-4
•
301-4 and 310-4
•
501-4 and 510-4
For ease in understanding, this entire group of Airnet II 4-Channel models is referred in
the remainder of this document as Airnet II 4-Channel particle sensors. When a
reference is given that ONLY pertains to one or more models in this set, that specific
model (or models) is referenced.
An automated laser power control has been implemented that automatically shuts off
the laser power after 10 seconds of continuous bad flow. The laser power is restored
after 10 seconds of continuous good flow (good flow = specified flow ± 15%).
Airnet II 4-Channel particle sensors communicate by means of Ethernet with Facility
Net
1
, a software package that stores and displays particle data and allows the user to
control the Airnet II 4-Channel particle sensor. The Airnet II 4-Channel particle sensor
models can also communicate via Modbus TCP via the Ethernet connection. All Airnet
II 4-Channel sensors can communicate via Modbus TCP when that feature is activated.
All Airnet II 4-Channel models have the option of adding a dual 24 VDC input and 4-20
mA output board that can power the unit via 24 VDC and/or that can send 4-20 mA
signals that can be customized for 4-20 mA-capable data systems.
Power is provided through:
•
the Ethernet connection when Power over Ethernet (PoE) is being utilized,
or
•
the 24 VDC input/ground connector pins when an optional 24 VDC input/4-20mA
output board has been ordered.
PoE can be supplied via a PoE router or a PoE injector (P/N 1000015865).
1.
This manual references Facility Net when discussing the software used to control these
Airnet II 4-Channel particle sensors. However, you can use Facility Net wherever this reference is
noted.
