Met One Instruments AEROCET 532 User manual

Met One Instruments, Inc
Corporate Sales & Service: 1600 NW Washington Blvd. Grants Pass, OR 97526
Tel [phone] Fax [phone]
www.metone.com serv[email protected]om
AEROCET 532
MANUAL

AEROCET 532 Manual Rev B Page 2
Copyright Notice
AEROCET 532 Manual
© Copyright 2021 Met One Instruments, Inc. All Rights Reserved Worldwide. No part of
this publication may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any other language in any form by any means without the
express written permission of Met One Instruments, Inc.
Technical Support
This manual is structured by customer feedback to provide the required information for
setup, operation, testing, maintaining, and troubleshooting your AEROCET 532. Should
you still require support after consulting your printed documentation, we encourage you
to contact one of our expert Technical Service representatives during normal business
hours of 7:00 a.m. to 4:00 p.m. Pacific Time, Monday through Friday. In addition,
technical information and service bulletins are often posted on our website. Please
contact us and obtain a Return Authorization (RA) number before sending any
equipment back to the factory. This allows us to track and schedule service work and to
expedite customer service. Please have your instrument serial number available when
contacting the manufacturer.
Contact
Information:
Tel: + 541 471 7111
Fax: + 541 471 7115
Web: www.metone.com
Email: [e-mail]
Address:
Met One Instruments, Inc.
1600 NW Washington Blvd
Grants Pass, Oregon 97526
U.S.A.
NOTICE
CAUTION—Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
WARNING—This product, when properly installed and operated, is
considered a Class I laser product. Class I products are not
considered to be hazardous.
There are no user serviceable parts located inside the cover of this device.
Do not attempt to remove the cover of this product. Failure to comply with this
instruction could cause accidental exposure to laser radiation.

AEROCET 532 Manual Rev B Page 3
Table of Contents
1. Introduction........................................................................................................... 5
2. Setup...................................................................................................................... 5
2.1. Unpacking..................................................................................................................................5
2.2. Layout........................................................................................................................................7
2.3. Default Settings .........................................................................................................................8
2.4. Initial Operation .........................................................................................................................8
3. User Interface ........................................................................................................ 8
4. Operation............................................................................................................... 9
4.1. About the Measurement ............................................................................................................9
4.2. Power Up...................................................................................................................................9
4.3. Operate Screen .........................................................................................................................9
4.3.1. Sampling ...........................................................................................................................11
4.3.2. Sample Status...................................................................................................................11
4.3.3. Sample History..................................................................................................................11
4.4. Sample Related Functions ......................................................................................................12
4.4.1. Starting/Stopping...............................................................................................................12
4.4.2. Measurement Type...........................................................................................................12
4.4.3. Sample Mode....................................................................................................................12
4.4.4. Count Mode.......................................................................................................................12
4.4.5. Sample Time.....................................................................................................................12
4.4.6. Hold Time..........................................................................................................................12
4.4.7. Sample Timing ..................................................................................................................12
5. Menu Selections.................................................................................................. 13
5.1. Edit Menu Items.......................................................................................................................13
5.2. Sample Setup Screen..............................................................................................................14
5.2.1. Location ID........................................................................................................................14
5.2.2. Measure ............................................................................................................................14
5.2.3. Mode .................................................................................................................................15
5.2.4. Count Mode.......................................................................................................................15
5.2.5. Sample Time.....................................................................................................................15
5.2.6. Hold Time..........................................................................................................................15
5.3. Toolbox Screen .......................................................................................................................16
5.3.1. Units..................................................................................................................................16
5.3.2. Memory .............................................................................................................................17
5.3.3. K-Factors...........................................................................................................................18
5.3.4. Flow...................................................................................................................................19
5.3.5. Display ..............................................................................................................................20
5.3.6. Docking Station.................................................................................................................20
5.4. Initial Setup Screen .................................................................................................................22
5.4.1. Serial.................................................................................................................................22
5.4.2. Modbus .............................................................................................................................23
5.4.3. Clock .................................................................................................................................24

AEROCET 532 Manual Rev B Page 4
5.4.4. Locations...........................................................................................................................24
5.5. About Screen...........................................................................................................................25
6. Charging the Battery........................................................................................... 25
7. Serial Communications ...................................................................................... 26
7.1. Commands ..............................................................................................................................26
7.2. Comma Separated Value (CSV) .............................................................................................28
7.2.1. Counts Format ..................................................................................................................28
7.2.2. Mass Format .....................................................................................................................29
7.2.3. Status................................................................................................................................29
7.3. MODBUS Communication.......................................................................................................30
7.3.1. Instantaneous Real Time Readings..................................................................................30
7.3.2. Last Data Record Readings..............................................................................................31
8. Maintenance ........................................................................................................ 32
8.1. Recommended Service Schedule...........................................................................................32
8.2. Zero Count Test.......................................................................................................................32
8.3. Flow Rate Test.........................................................................................................................32
8.4. Annual Calibration ...................................................................................................................33
8.5. Filter Change...........................................................................................................................33
8.6. Flash Upgrade.........................................................................................................................33
9. Troubleshooting.................................................................................................. 34
10. Specifications...................................................................................................... 35

AEROCET 532 Manual Rev B Page 5
1. Introduction
The AEROCET 532 is a full–featured, battery operated, handheld particle counter or
mass monitor.
In count mode, the unit will measure particle counts at eight fixed sizes (0.3 µm, 0.5 µm,
1.0 µm, 2.5 µm, 4.0 µm, 5.0 µm, 7.0 µm, and 10.0 µm).
In mass mode the unit will measure PM1, PM2.5, PM4, PM7, PM10 and TSP mass
concentration levels.
This instrument can store up 15,000 sample events including data from the ambient
temperature (AT) / relative humidity (RH) probe. Sample history events can be viewed
on the LCD display and downloaded to a computer.
An optional Docking Station complements the Aerocet 532. It charges the unit and
increases communication options with RS-485, Ethernet, and WiFi.
2. Setup
The following sections cover unpacking, layout and performing a test run to verify
operation.
2.1. Unpacking
Unpack and inspect the contents of the shipping container. Standard items (included)
are shown in
Figure 1 - Standard Equipment. Optional accessories are shown in Figure 2 –Optional
Accessories. Contact the supplier if any items are missing. Any damages incurred
during shipping are the responsibility of the carrier. If any damage to the shipment is
noticed before unpacking, a claim must be filed with the commercial carrier immediately.
You should follow any special unpacking instructions provided by the carrier as you then
carefully remove all items from the containers and inspect each component. It is
recommended to document and photograph all damaged packages and items before,
during, and after unpacking them. Contact Met One Instruments, Inc. (see the Technical
Support section at the beginning of this manual) to arrange for any replacement items
needed.
ATTENTION:
A Silicon Labs CP210x Driver for the USB connection must be installed before
connecting to the USB Type C port.
Driver download weblink: https://metone.com/usb-drivers/

AEROCET 532 Manual Rev B Page 6
Figure 1 - Standard Equipment
Flow Meter
PN 9801
Flow Meter
PN Swift 6.0
Docking Station
PN 83529
Figure 2 –Optional Accessories
AEROCET 532
PN AEROCET-532
Battery Charger
PN 390031
Power Cord
PN 400113
Carrying Case
PN 550537
Calibration Certificate
AEROCET 532-9600
ISO-Kinetic Probe
PN 83117
Zero Count Filter
PN G3111
USB Cable
PN 502116
Manual
AEROCET-532-9800
Rubber Boot
PN 83549

AEROCET 532 Manual Rev B Page 7
2.2. Layout
Figure 3 shows the layout of the AEROCET 532 and provides a description of each of
the components.
Figure 3 –AEROCET 532 Layout
Component
Description
Power Switch
Switch that turns the AEROCET 532 on or off. Slide up (towards inlet
nozzle) to turn on and slide down to turn off.
Charging Jack
Input jack for the battery charger. This connection charges the internal
battery pack and provides continuous operating power for the unit.
Keypad
2 key membrane keypad.
USB C Port
For USB serial communication.
Rotary Dial
Multifunction dial (rotate and press).
AT/RH Sensor
Integrated sensor that measures ambient temperature and relative
humidity.
Isokinetic Probe
The isokinetic probe reduces turbulence in the air sample. It attaches
over the air inlet nozzle.
Bottom Connection
For use with the optional 83529 Docking Station. This is used to charge
the unit and transfer data through the docking station.
Charging Jack
Isokinetic Probe
AT/RH Sensor
USB C Port
Power Switch
Rotary Dial
Keypad
Bottom Connection

AEROCET 532 Manual Rev B Page 8
2.3. Default Settings
The AEROCET 532 comes with the user settings configured as follows.
Parameter
Value
Sample Type
Mass (µg/m3)
Sample Mode
Continuous
Count Mode
Cumulative
Sample Time
1 Min
Sample Hold Time
0 seconds
Volume (concentration)
CF (particles / ft3)
Temperature Units
C
USB Baud Rate
115200
2.4. Initial Operation
Before operating the AEROCET 532 for the first time, it is recommended that the unit be
fully charged. Information regarding charging the battery is found in section 6 of this
manual.
Complete the following steps to verify proper operation.
1. Slide the power switch up to turn on the power.
2. Observe the Startup screen for 2 seconds then the Operate screen (Section 4.3)
3. Press START/STOP key. The AEROCET 532 will begin sampling.
4. Observe the PM levels on the display.
5. Turn the rotary dial to view other PM levels.
6. The unit is ready for use.
3. User Interface
The AEROCET 532 user interface is composed of a rotary dial, 2 button keypad, and an
LCD display. The following table describes keypad functionality. Note some keys have
more than one function.
Key
Description
•Operate Screen: Starts or stops a sample.
•Settings Menu: Return to Operate screen.
•Edit Setting: Cancel edit mode and return to Operate screen.
•Operate Screen: Display the Settings menu.
•Settings Menu: Return to previous screen.
•Edit Setting: Cancel edit mode and return the previous menu.

AEROCET 532 Manual Rev B Page 9
Press Function
•Operate Screen: Display the sample history.
•Settings Menu: Select the highlighted menu item.
•Edit Setting: Enter setting edit mode.
Dial Function
•Operate Screen: dial to scroll parameter list.
•Settings Menu: dial to move/scroll highlight to menu item.
•Edit Setting: dial to change picklist and numerical
parameters
4. Operation
The following sections cover the basic operation.
4.1. About the Measurement
The AEROCET 532 counts and sizes particles in 8 different size ranges then uses a
proprietary algorithm to convert count data to mass measurements (µg/m3). This
calculation includes a K-Factor setting that can be adjusted to compensate for local
particulate characteristics and improve measurement accuracy. The AEROCET 532
provides a separate K-Factor setting for each measurement range (PM1, PM2.5, PM4,
PM7, PM10, and TSP). These K-Factors can be modified on the K Factor screen as
discussed in section 5.3.3, with serial commands, or with Comet software.
K-Factor values should be empirically derived via comparison with a reference unit.
Refer to Section 5.3.3.
4.2. Power Up
AEROCET 532 power is controlled by a slide switch located on the left hand side of the
unit. Move the power switch to the on position (towards the top of the case) to power up
the unit.
The first screen shown on power up is the Startup screen. This screen briefly displays
the company logo before loading the Operate Screen.
4.3. Operate Screen
The Operate screen displays the count or mass measurement. It is determined by the
Measure setting. The Operate screen displays the sample status, date and time,
battery status, sample data, location, temperature, and relative humidity. Figure 4 and
Figure 5 show the Mass and Count screens. Four size channels are displayed. Rotate
the dial to display additional sizes and the location.

AEROCET 532 Manual Rev B Page 10
Figure 4 –Mass Operate Screen
Figure 5 –Count Operate Screen