Spectris Particle Measuring Systems Airnet II 4-CH User manual

Airnet® II 4-CH Particle Sensors
MODELS 201-4, 301-4, 310-4, 501-4, 510-4
P/N 1000016470
OPERATIONS MANUAL
Without measurement there is no control

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Airnet® II 4-Channel Particle
Sensors (201-4, 301-4, 310-4,
501-4, 510-4)
Operations Manual
P/N 1000016470 Rev C

ii Airnet® II 4-Channel Particle Sensors Operations Manual
Airnet II 4-Channel Particle Sensors 201-4, 301-4, 310-4, 501-4, 510-4
Operations Manual
P/N 1000016470 Rev C
© 2021 by Particle Measuring Systems, Inc.
All rights reserved.
Airnet®is a registered trademark of Particle Measuring Systems, Inc.
HyperTerminal®is a registered trademark of Hilgraeve, Inc.
Windows®is a registered trademark of Microsoft Corporation.
Molex®and Mini-Fit®are registered trademarks of Molex.
All trademarks appearing in this manual are the property of their respective owners.
This confidential document contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this document may be reproduced,
distributed, or transmitted in any form without the prior written consent of Particle
Measuring Systems. The information contained in this document is subject to change
without notice.
Quality Statement
The Quality Policy of Particle Measuring Systems is to strive to meet or exceed the
needs and expectations of our customers and to align the activities of all employees
with the common focus of customer satisfaction through continuous improvement in
the quality of our products and services.
Environmental Information
There are no potential means by which asbestos exposure is possible because there
are no materials in the design or manufacture of the Airnet II 4-Channel Particle
Sensors containing asbestos.
This equipment must be properly disposed of at end-of-life by means of an authorized
waste management system. Contact our Customer Response Center at [phone]
or [phone] (International) for dismantling and disposal information.
Patent Information
U.S. and foreign patents for this equipment are pending.
DO NOT REPRODUCE OR DISTRIBUTE CONFIDENTIAL DOCUMENT

Airnet® II 4-Channel Particle Sensors Operations Manual iii
Manual Conventions
It is important that you observe cautions and warnings while performing the
procedures described in this manual. Caution and warning labels are located on and
inside the instrument to alert you to potentially hazardous conditions. Please
familiarize yourself with this information.
WARNING
A warning in the text is used to notify the user of the potential for bodily injury or
death.
CAUTION
A caution in the text is used to highlight an item that if not done, or incorrectly done,
could damage the instrument and/or any materials or devices affected by the
instrument.
– — NOTICE — –
A notice in the text is an instructional communication regarding requirements or
policies issued by Particle Measuring Systems.
NOTE: A note in the text is used to highlight an item that is
of operational importance to the user.

iv Airnet® II 4-Channel Particle Sensors Operations Manual
and Declaration of Conformity
Application of Council Directive(s): CE 2014/30/EU, 2014/53/EU, 2014/35/EU, RoHS 2011/65/EU, 2015/
863
UKCA Electromagnetic Compatibility Regulations 2016,
Electrical Equipment (Safety) Regulations 2016
The Restriction of the Use of Certain Hazardous Substances in
Electrical and Electronic Equipment Regulations 2012
Standard(s) to which Conformity is Declared: EMC EN 61326-1:2013
S.I. 2016 No. 1091
Safety EN61010-1: 2010, 3rd, Ed.
S.I. 2016 No. 1101
RoHS EN 63000:2019
Manufacturer’s Name: Particle Measuring Systems, Inc.
Manufacturer’s Address: 5475 Airport Boulevard, Boulder, CO 80301 USA
Manufacturer’s Telephone/FAX: [phone]
Distributor’s Name: Particle Measuring Systems S.R.L.
Distributor’s Address Via di Grotte Portella 34
00044 Frascati (Roma) ITALY
Distributor’s Telephone/FAX: [phone]
Type of Equipment: Particle Monitoring
Model No: Airnet II 4-Channel 201-4, 301-4, 310-4, 501-4, 510-4
I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive(s) and Standard(s).
Signature: Signature:
Full Name: Scott MacLaughlin Full Name: Frank Panofen
Position: Director of Engineering Position: Marketing Manager, Life Sciences
Place: Boulder Date: May 28, 2021 Place: Rome Date: May 28, 2021
CAUTION
All I/O cables and accessories must meet current factory specifications in order for
this unit to remain in compliance with CE marking requirements. Consult the factory
for details.
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.

Airnet® II 4-Channel Particle Sensors Operations Manual v
Table of Contents
Quality Statement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Environmental Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Patent Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Manual Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - iii
Table of Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - v
List of Figures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ix
List of Tables - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - xi
Chapter 1: Getting Started - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
Class I Laser Product - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
Physical Description- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Top - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Back - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Bottom - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-4
Specifications- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5
Environmental Conditions- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-6
Chapter 2: Unpacking and Installation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Unpacking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Shipping List - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Items You Need to Provide- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Automated Laser Power Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Detector Board Monitor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2
Selecting a Location- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-3
Positioning or Mounting the Unit- - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
Powering the Sensor from 24 VDC - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
Powering the Sensor from Power over Ethernet (PoE) - - - - - - - - - - - 2-5
Connecting the Power Supply - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-6
Connecting the Sample and Vacuum Tubing - - - - - - - - - - - - - - - - - - 2-6
Chapter 3: Configuring for Ethernet- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
Configuration Defined - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
When to Configure the Sensor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
Required Hardware and Software - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
RS-232 Cable - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2
Setting Configuration Addresses for Ethernet- - - - - - - - - - - - - - - - - - 3-2
Configuration Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-3

Table of Contents
Airnet® II 4-Channel Particle Sensors Operations Manual vi
Viewing Configuration Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-5
Connecting the Ethernet Cable - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-6
Chapter 4: 4-20 mA Signal Configuration / Operation - - - - - - - - - - - - - - - - - - - - - - 4-1
Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
4-20 mA Outputs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Configuring 4-20 mA Outputs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2
Required Hardware and Software - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2
Establishing HyperTerminal Communications - - - - - - - - - - - - - - - - - 4-3
Viewing Configuration Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-3
Configuration Commands - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-4
Adjusting the 4-20 mA Outputs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-5
Connecting 4-20 mA Outputs to a SCADA Data Collection System - - - - - 4-6
Chapter 5: Maintenance and Performance Checks - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Cleaning the Sensor’s Housing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Cable Connectors- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Performance Checks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Airflow Rate Check - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Background Count Check - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-2
Chapter 6: Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1
Troubleshooting Matrix - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1
Airflow Rate Errors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-2
Isolating and Repairing Leaks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-2
Particle-Induced Counts - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-3
Transient-Induced Counts - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-3
Appendix A: TCP/IP Protocol: A Brief Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1
TCP/IP's Network Layer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1
Ping - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1
Appendix B: Modbus Protocol- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-1
Modbus Overview- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-1
Input Registers - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-2
Holding Registers- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-5
Coils - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-5
Data Packet Processing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-6
Associated Values for Specific Registry Entries - - - - - - - - - - - - - - - - - - - - B-7
Appendix C: International Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1
WARNING - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1
AVERTISSEMENT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1
WARNUNG - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1
ATTENZIONE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1

Table of Contents
Airnet® II 4-Channel Particle Sensors Operations Manual vii
ADVERTENCIA- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1
Hazard Symbols - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-2
Symboles de risque - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-2
Warnschilder - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-2
Simboli di pericolo- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-3
Simbolos de peligro - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-3
Appendix D: 㦘㹡㒥㦘⹂䤓䓸德✛⏒侯 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D-1

viii Airnet® II 4-Channel Particle Sensors Operations Manual
Table of Contents
This page is intentionally left blank.

Airnet® II 4-Channel Particle Sensors Operations Manual ix
List of Figures
Chapter 1: Getting Started - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
Figure 1-1 Airnet II 4-Channel particle sensor - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
Figure 1-2 Connectors on the back of the Airnet II 4-Channel particle sensor
(Shown with 4-20 mA option) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Chapter 2: Unpacking and Installation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Figure 2-1 Horizontal Mounting Bracket
P/N MP8876- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
Figure 2-2 “S” Type Mounting Bracket
P/N MP8877- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
Figure 2-3 “L” Type Mounting Bracket
P/N MP8865- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
Figure 2-4 Dovetail Mounting Bracket
P/N MP7872- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-4
Figure 2-5 24 VDC Power Connector- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
Chapter 3: Configuring for Ethernet- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
Chapter 4: 4-20 mA Signal Configuration / Operation - - - - - - - - - - - - - - - - - - - - - - 4-1
Chapter 5: Maintenance and Performance Checks - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Chapter 6: Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1
Appendix A: TCP/IP Protocol: A Brief Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1
Appendix B: Modbus Protocol- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-1
Appendix C: International Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1
Appendix D: 㦘㹡㒥㦘⹂䤓䓸德✛⏒侯 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D-1

x Airnet® II 4-Channel Particle Sensors Operations Manual
List of Figures
This page is intentionally left blank.

Airnet® II 4-Channel Particle Sensors Operations Manual xi
List of Tables
Chapter 1: Getting Started - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
Table 1-1 Airnet II 4-Channel particle sensor specifications - - - - - - - - - - - - - - - - - - 1-5
Table 1-2 Airnet II 4-Channel particle sensor environmental conditions - - - - - - - - 1-6
Chapter 2: Unpacking and Installation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
Table 2-1 Airnet II 4-Channel particle sensor shipping list - - - - - - - - - - - - - - - - - - - 2-1
Chapter 3: Configuring for Ethernet- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
Table 3-1 RS-232 pin outs (RJ-11 jack) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-2
Table 3-2 Terminal emulator communications parameters - - - - - - - - - - - - - - - - - - 3-2
Chapter 4: 4-20 mA Signal Configuration / Operation - - - - - - - - - - - - - - - - - - - - - - 4-1
Table 4-1 Summary of 4-20 mA Channel thresholds - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Table 4-2 4-20 mA Channel thresholds- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Table 4-3 4-20 mA factory preset status levels- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2
Table 4-4 RS-232 pinouts
(RJ-11 Connectors on the Airnet II 4-Channel particle sensor)- - - - - - - - - - - - - - - - - - - - 4-2
Table 4-5 Terminal emulator communications parameters - - - - - - - - - - - - - - - - - - 4-3
Table 4-6 Airnet II 4-Channel particle sensor 4-20 mA connector pins - - - - - - - - - - 4-6
Chapter 5: Maintenance and Performance Checks - - - - - - - - - - - - - - - - - - - - - - - - 5-1
Chapter 6: Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6-1
Appendix A: TCP/IP Protocol: A Brief Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1
Appendix B: Modbus Protocol- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-1
Table B-1 Input register – configuration - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-2
Table B-2 Input register – data packet - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-3
Table B-3 Holding registers- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-5
Table B-4 Coils - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-6
Table B-5 Associated values for specific registry entries - - - - - - - - - - - - - - - - - - - - - B-7
Appendix C: International Precautions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1

xii Airnet® II 4-Channel Particle Sensors Operations Manual
List of Tables
Appendix D: 㦘㹡㒥㦘⹂䤓䓸德✛⏒侯- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - D-1

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
Net1, 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.

1-2 Airnet® II 4-Channel Particle Sensors Operations Manual
Chapter 1 : Getting Started Class I Laser Product
Figure 1-1 Airnet II 4-Channel particle sensor
Class I Laser Product
The Airnet II 4-Channel particle sensors are Class 1 laser products.
WARNING
This instrument is a Class l laser product.aUse of controls, adjustments, or
performance of procedures other than those specified here may result in
hazardous radiation exposure.
a. National Center for Device and Radiological Health (formerly BRH).

Physical Description Chapter 1 : Getting Started
Airnet® II 4-Channel Particle Sensors Operations Manual 1-3
Physical Description
Top
1. Sample Inlet – 1/4-inch ID Sample probe or tubing 1/4-inch diameter tubing.
Two LEDs are located on the top of each Airnet II 4-Channel particle sensor chassis:
2. Status LED – Indicates the operational status of the instrument.
When connected to Facility Net software, the LED is controlled by Facility Net’s alarm
settings. The failure state depends upon how the particle sensor is configured in
Facility Net. When disconnected from Facility Net, you can set the unit to run the
Status LED two distinct ways.
• Set the Status LED to flash green when disconnected.
• Set the Status LED to represent the internal state of the flow and/or laser
status indication. The Status LED will normally remain green, except for
a low flow and/or laser status error.
3. Activity LED – The Activity LED flashes when a particle is detected.
Figure 1-2 Connectors on the back of the Airnet II 4-Channel particle sensor
(Shown with 4-20 mA option)

1-4 Airnet® II 4-Channel Particle Sensors Operations Manual
Chapter 1 : Getting Started Physical Description
Back
All connectors are found on the back of the unit’s chassis, including:
•Electrical Power – Power can be provided through the 24 VDC power connector
(see Figure 2-5, “24 VDC Power Connector,” on page 2-5) when this option board
has been purchased, or through the Ethernet connection if Power over Ethernet
(PoE) is being utilized.
•Ethernet – The UTP Ethernet connector allows the unit to communicate with
Facility Net by connecting an Ethernet cable from the particle sensor to the
Ethernet hub. The Airnet II 4-Channel particle sensor can also communicate via
Modbus TCP or via an Ethernet connection when this feature is activated. When
connected to a router or PoE brick (injector) that provides PoE the Ethernet
connection will power the system also.
•RS-232 – The RS-232 RJ-11 jack is used for configuring the unit and performing
limited diagnostics.
•Vacuum Source – The barbed fitting allows a source of vacuum (>12in. Hg) to be
supplied to the unit.
•Calibration – Three SMB connectors are available for calibrations only and are
not used for system operation.
•Optional 24 VDC Input/4-20 mA Output – The 12-pin Molex® connector allows a
24 VDC input power supply to power the unit, and/or outputs scaled 4-20 mA
signals that transmit the following:
• Channel 1, 2, 3, and 4 particle data
• Instrument status
Bottom
The bottom of the Airnet II 4-Channel unit contains four tapped-thread fittings that
match the countersunk screw holes on three of the four mounting brackets. These
brackets are used to mount the Airnet II 4-Channel to vertical or horizontal surfaces
(refer to Positioning or Mounting the Unit on page 2-4 for illustrations and part
numbers for the brackets).
NOTE: If any modifications are made to the factory connector, make sure to verify
the 24 VDC and GND lines before connection to the Airnet II 4-Channel unit.
NOTE: For best results, use a CAT 5 UTP cable. If PoE is used, you must use a
shielded CAT 5 UTP cable or ground the unit locally.
NOTE: Airnet II 4-CH vacuum connection is a 1/4-inch tubing connection.

Specifications Chapter 1 : Getting Started
Airnet® II 4-Channel Particle Sensors Operations Manual 1-5
Specifications
Table 1-1 Airnet II 4-Channel particle sensor specifications
201-4 301-4 310-4 501-4 510-4
Channel thresholds
(µm)
0.2, 0.3, 0.5,
1.0
0.3, 0.5, 1.0,
5.0
0.3, 0.5, 1.0,
5.0
0.5, 1.0, 5.0,
10.0
0.5, 1.0, 5.0,
10.0
Sample flow ratea
Alarm at 15%
variation
a. Allow ±5% for variations in sample flow.
0.1 CFM
(2.8 LPM)
0.1 CFM
(2.8 LPM)
1.0 CFM
(28.3 LPM)
0.1 CFM
(2.8 LPM)
1.0 CFM
(28.3 LPM)
Maximum particle
concentrationb
b. Greater than 90% accuracy (less than 10% coincidence loss) at maximum recommended ambient
concentration.
5,057,310/ft34,862,798/ft3702,404/ft37,437,220/ft3890,371/ft3
Zero count level
(counts/m3)
< 70.7 < 70.7 < 7.07 < 70.7 < 7.07
Counting efficiency
Meets ISO 21501-4
50% ± 20% for most sensitive channel.
100% ± 10% at 1.5 to 2.0 times channel one size.
Flow system External vacuum
Vacuum source > 12 in Hg
Material (chassis) Polycarbonate (PC)
Dimensions
(L W H)
5.3 3.6 3.8 in (13.5 8.9 9.6 cm)
Weight 1.6 lb (0.73 kg)
Power PoE 48 VDC, 0.25 A or optional 24 VDC, 0.5 A
Optional POE Power Injector:
Input: 100 - 240 VAC, 50 - 60Hz, 1.5 A
Output: 56 VDC, 0.6 A
Communications •Ethernet connector requiring cable type CAT 5 UTP (shielded if PoE is utilized)
•RS-232 (configuration and diagnostic tool only, no data)
•Facility Net interface
•Modbus TCP communication
Optional 4-20 mA:
•four channels for particle data
•one channel for instrument status
Status indicators •Laser and flow status: two-color LED
•Activity: one-color LED
Calibration System is calibrated per ISO 21501-4. Optional ISO 17025 calibration available.

1-6 Airnet® II 4-Channel Particle Sensors Operations Manual
Chapter 1 : Getting Started Environmental Conditions
Environmental Conditions
The following environmental conditions apply to the Airnet II 4-Channel particle
sensor:
Table 1-2 Airnet II 4-Channel particle sensor environmental conditions
Operating temperatures 4 – 35 °C (39 – 95 °F)
Humidity conditions 5 – 95% RH non-condensing
Storage and transportation temperature - 10° – + 50 °C (14 – 122°F)
Maximum altitude 6,562 ft (2000 m)
Installation requirements Indoor use only
Pollution degree 2
Over voltage category I
Ordinary protection (not protected against
harmful ingress of moisture
Optional POE Power Injector
Over voltage Category II
Class I Equipment (Electrical earth ground from
the mains power source to the product input is
required for safety.)
Laser classification Class 1 per EN60825-1
Internally, a Class III B laser is used, per EN60825-
1

Airnet® II 4-Channel Particle Sensors Operations Manual 2-1
Chapter 2
Unpacking and Installation
Unpacking
1. Carefully open the container and remove the Airnet II 4-Channel particle
sensor.
2. Ensure that all components listed in the following section are included, and
inspect each unit for any damage.
3. If any components are damaged, immediately notify the shipper and Particle
Measuring Systems.
4. After you have determined that the shipment is undamaged, store the packing
materials for future shipping needs. Warranties may not apply if return
shipping containers are inadequate.
Shipping List
Table 2-1 Airnet II 4-Channel particle sensor shipping list
Part Name Quantity
Isokinetic air sampler (probe)
1
“L” Type mounting bracket (or one of three alternate bracketsa)
a. You must order alternate brackets in advance.
1
Phone jack cable, RS-232b
b. Used only for configuring the Airnet II 4-Channel particle sensor.
1
Operations manualc
c. For large orders with multiple units, Particle Measuring Systems may
elect to limit the number of Operations Manuals included in the
shipment.
1
24 VDC / 4-20 mA output connectors (optional)
Molex Micro Fit 3.0 12-pin square receptacle (optional) 1
Molex crimp pins, female (12) (optional) 12
Ferrite (optional) 1