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C H A P T E R 1
Introduction and
Unpacking
The AeroTrak
®
+ Remote Particle Counter (particle counter) is a compact
sensor that is appropriate for use in multiple locations in a large clean
room or critical environment to continuously monitor a process. The
sensors are very simple compared to a typical particle counter. They
have no display (other than several LED indicators) and can run with no
pump (central vacuum is used along with an integrated critical orifice) or
with an internal pump that is controlled to provide a constant volumetric
flow rate for 0.1 cfm (2.83 L/min) models.
Sensor data and particle counter information is communicated to an
external device via integrated Ethernet (TCP/IP), serial Modbus RTU
communications, a digital contact. 4-20 mA or wireless outputs are
available on select models. Oftentimes, this data is sent to a data logging
and reporting software, like TSI Incorporated’s Facility Monitoring
System Software.
The following table shows the remote particle counter models covered by
this manual.
* A denote 4-20 mA analog outputs
+
V denotes VHP resistant
* W denotes unit is capable of receiving the external wireless node