Met One Instruments ES-405 User manual

ES-405-9800 Manual Rev A Page 1
Met One Instruments, Inc.
1600 NW Washington Blvd.
Grants Pass, Oregon 97526
Telephone [phone]
Facsimile 541-471-7116
ES-405 Particulate Profiler Operation Manual - © Copyright 2020 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 without the written permission of Met One Instruments, Inc.
ES-405
PARTICULATE PROFILER
OPERATION MANUAL
REVISION A

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Table of Contents
1INTRODUCTION..................................................................................................................5
1.1 About This Manual.................................................................................................................................5
1.2 Technical Service and Warranty .........................................................................................................5
1.3 About the ES-405 ..................................................................................................................................6
1.4 Laser Radiation Safety and Conformity..............................................................................................6
1.5 ES-405 Specifications...........................................................................................................................7
2ES-405 SETUP and STARTUP ........................................................................................8
2.1 Standard and Optional Accessories ...................................................................................................8
2.2 Mounting Options...................................................................................................................................8
2.2.1 Basic Unit Mounting.......................................................................................................................8
2.2.2 Wall or Pole Mounting....................................................................................................................9
2.3 Setting Up the ES-405..........................................................................................................................9
2.4 Electrical Connections ........................................................................................................................11
2.5 Power-Up and Starting Operation.....................................................................................................11
2.6 Default Setup........................................................................................................................................12
3SITE SELECTION and REMOTE POWER OPTIONS................................................13
3.1 Site Selection Requirements..............................................................................................................13
3.2 Fall Hazard and Security Cautions ...................................................................................................14
3.3 Confined Sampling Locations............................................................................................................14
4ES-405 USER INTERFACE and MENU SYSTEM......................................................15
4.1 The User Interface - Keypad and Display Functions......................................................................15
4.2 Using the Main Sampling Screen......................................................................................................16
4.3 Using the Main ES-405 Menu System and Clearing Memory ......................................................17
5ES-405 MEASUREMENT METHOD ..............................................................................18
5.1 Sheath Air.............................................................................................................................................18
5.2 Detection...............................................................................................................................................18
5.3 Sizing and Counting............................................................................................................................18
5.4 Calibration.............................................................................................................................................18
5.5 K-Factor ................................................................................................................................................18
5.6 Sample RH Control for Light Scatter Mass......................................................................................19
6SETUP MENU DESCRIPTIONS.....................................................................................20
6.1 SAMPLE Setup....................................................................................................................................20
6.2 CLOCK Setup.......................................................................................................................................21
6.3 SERIAL PORT .....................................................................................................................................21
6.4 MEMORY..............................................................................................................................................21

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7CALIBRATE MENU –FIELD CALIBRATIONS...........................................................22
7.1 CALIBRATE Menu...............................................................................................................................22
7.1.1 CALIBRATE Flow Screen ...........................................................................................................22
7.1.2 CALIBRATE FP Screen...............................................................................................................23
7.1.3 K-FACTOR Screen.......................................................................................................................23
8MAINTENANCE and TROUBLESHOOTING...............................................................24
8.1 Basic Problem and Cause/Solution Table .......................................................................................24
8.2 Suggested Periodic Maintenance Intervals .....................................................................................25
8.3 AQ Flow Calibration ............................................................................................................................25
8.4 Filter Change........................................................................................................................................25
8.5 TSP Inlet Cleaning...............................................................................................................................25
8.6 Factory Service Interval......................................................................................................................26
9DATA RETRIEVAL and COMMUNICATIONS.............................................................27
9.1 Serial Port Connections to a Computer............................................................................................27
9.2 Modem Options for Remote Data Retrieval.....................................................................................27
9.3 Comet™ Data Retrieval Software.....................................................................................................27
9.4 Downloading Data Using a Terminal Emulator...............................................................................27
9.5 Data Retrieval Commands Through the Serial Port.......................................................................28
9.5.1 User Communication ...................................................................................................................28
9.5.2 Computer Communication ..........................................................................................................28
9.5.3 Computer Command Format......................................................................................................28
9.5.4 Checksum Computation..............................................................................................................29
9.5.5 Serial Command List....................................................................................................................29
9.6.3 SK Command................................................................................................................................31
10 ACCESSORIES and PARTS...........................................................................................32
10.1 Consumables, Replacement Parts, and Accessories....................................................................32
10.2 Combination Sensor Options.............................................................................................................33
10.2.1 EX2-034.........................................................................................................................................33
10.2.2 EX2-AIO.........................................................................................................................................33
10.2.3 597A...............................................................................................................................................34
10.3 CCS Modem 2......................................................................................................................................34

ES-405-9800 Manual Rev A Page 5
1 INTRODUCTION
1.1 About This Manual
This document is organized with the most important information grouped together for easy
reference by the user. All ES-405 owners and operators should read and understand the sections
on installation, setup, and field calibrations. Other sections that provide in-depth information on
subjects such as theory, diagnostics, accessories, and alternate settings provide valuable
information which should be consulted as needed. An electronic version of this manual is also
available.
1.2 Technical Service and Warranty
This manual is structured by customer feedback to provide the required information for setup,
operation, testing, maintaining, and troubleshooting your ES-405 unit. 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.
Phone: [phone] Fax: [phone]
E-Mail: [email protected] Web: www.metone.com
Address: Technical Services Department
Met One Instruments, Inc.
1600 NW Washington Blvd.
Grants Pass, OR 97526

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1.3 About the ES-405
The Met One Instruments, Inc. model ES-405 Particulate Profiler is a near reference air quality
sensor which automatically measures and records real-time airborne PM1.0, PM2.5, PM4.0, and
PM10 particulate concentration levels using the principle of right angle laser light scatter. Detailed
descriptions of the ES-405 measurement modes can be found in Section 5.
Laser Light Scatter System
Sample air is drawn into the ES-405 detector chamber and subjected to an intense laser beam
located at right angles to the flow. Particles pass through the laser beam and scatter light that is
collected onto a photodiode detector. The output of the detector is analyzed to determine the
number and size of the particles and mathematically processed to provide an indicative particulate
mass measurement.
1.4 Laser Radiation Safety and Conformity
The ES-405, when properly installed and operated, is considered a Class I laser product.
Class I products are not considered to be hazardous.
This system contains a diode laser operating at 100 mW power and 785 nm wavelength. This is
not visible to the naked eye and can cause damage to the eye if directly exposed. A protective
optical housing fully encapsulates the laser beam and optics system within the ES-405. Do not
attempt to disassemble the optical module. Failure to comply with this instruction could cause
accidental exposure to laser radiation. The manufacturer certifies that this product operates in
compliance with following standards and regulations:
•FDA / CDRH This product is tested and complies with 21 CFR, Subchapter J, of the
health and Safety Act of 1968.
•US 21 CFR 1040.10.
Always power down the system whenever service or repair work is being performed inside the
instrument enclosure. Only trained technicians should attempt to repair the ES-405. Routine
maintenance does not require removing the instrument from its weatherproof enclosure.

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1.5 ES-405 Specifications
PARAMETER
SPECIFICATION
Measurement Principles:
Right angle light scatter detection, using a laser diode as light source.
Number of Mass Channels:
4 (PM1.0, PM2.5, PM4.0, PM10)
Sample Air Flow Rate:
1.0 LPM
Sheath Air Flow Rate:
1.0 LPM
Flow Control:
Active Volumetric Flow Control
Data Storage Resolution:
0.1 µg/m3
Data Storage Intervals:
User-Selectable 1, 5, 10, 15, 30, or 60 minutes.
Laser Type:
Diode Laser, 100 mW, 785 nm.
Pump Type:
10,000 hour brushless diaphragm pump.
Power Supply:
Universal 100-240 VAC input, 50/60Hz.
Power Consumption:
1.4 amps @ 12 VDC (17 Watts) average continuous draw with inlet heater running.
0.63 amps (8 Watts) running with inlet heater off.
Operating Temperature:
0 to +50°C
Storage Temperature:
-20º to +60º C
Ambient Humidity Range
0 to 95% RH, non-condensing.
Humidity Control
Automatic 10 Watt inlet heater module controlled to sample RH, with set point.
User Interface:
Menu-driven interface with 4x20 character OLED display and dynamic keypad.
Serial Interface:
RS-232, full duplex serial port for PC or datalogger communications.
RS-485, half duplex for modem communications.
RS-485, half duplex for sensor communications.
USB port for PC communications.
Serial Settings:
Baud = 115200, 8 data bits, no parity, and 1 stop bit. (factory Default)
115200, 57600, 38400, 19200, 9600, 4800, 2400 (selectable).
Compatible Software:
Comet™, terminal programs such as HyperTerminal®
Factory Service Interval:
24 Months typical, under continuous use in normal ambient air.
Mounting Options:
Pole or wall mount bracket standard. Optional EX-905 tripod recommended.
Unit Weight
8.5 lbs without power supply, 10 lbs with power supply.
Unit Dimensions
Height: 20" Width: 8" Depth: 6"
Specifications may be subject to change without notice.

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2 ES-405 SETUP and STARTUP
The ES-405 is designed for rapid deployment and easy setup by a single person in less than 15
minutes in most applications. This section describes the basic assembly, setup, and start-up of the
instrument.
2.1 Standard and Optional Accessories
When unpacking a new ES-405, verify that the contents are undamaged. If the shipping cartons
are damaged, notify the carrier immediately. Verify that the included accessories are correct and
complete. If anything is missing, contact the technical service department at [email protected]
or [phone]. See the Accessories section at the back of this manual for more details. The
normal configuration of the ES-405 is supplied with the following standard accessories:
•Weatherproof TSP inlet with debris screen.
•Instruction manual.
•External power supply and cable.
•USB Cable.
•Mounting brackets.
The following optional accessories may or may not also be included, depending on the order:
•Serial Communications Cable.
•Aluminum Tripod.
•External digital MET sensors.
•External DC power cable for batteries or solar systems.
•Modem Kits for phone line, cell, radio, or satellite telemetry.
•Solar power kits (usually drop-shipped from the solar manufacturer). A DC/DC controller is highly
recommended to regulate incoming voltage to 12V.
2.2 Mounting Options
2.2.1 Basic Unit Mounting
The ES-405 can be mounted using the included mounting ears. The unit must be screwed or
bolted to the support structure with appropriate hardware. For normal wall or pole mounting the
mounting bracket is recommended.
Basic Unit Mounting

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2.2.2 Wall or Pole Mounting
The ES-405 can be wall mounted using the optional mounting bracket. This bracket can be used
for both wall and pole mounting of the ES-405. The mounting bracket must be screwed or bolted
to the support structure with appropriate hardware. When pole or tripod mounted, the V-Bolts can
be used to attach the mounting bracket. 1/4-10 hardware is used to mount the ES-405 to the
mounting bracket.
Note: If mounting the unit to a wall, take care to ensure that there is adequate clear space around
the inlet to allow unrestricted airflow into the instrument. Wall mounting is often not considered
ideal and not recommended due to the airflow and particulate obstruction of the wall itself. Mount
the instrument with no large obstructions nearby whenever possible.
Wall or Pole Mounting Installation
2.3 Setting Up the ES-405
Set up the rest of the ES-405 hardware items and accessories as described below:
1. Install TSP inlet: The included weatherproof TSP inlet is simply installed directly onto the
top of the ES-405 inlet tube to keep water, insects, and debris out of the instrument.
Lubricate the o-rings if necessary. Never operate the ES-405 outdoors without the TSP
inlet in place, as the resulting water/debris damage is not covered under warranty.
2. Optional MET sensor: If an optional MET sensor is supplied, it will come with a cross-arm
tube which mounts to the stud on the top of the EX-905 tripod with supplied fittings. Install
the MET sensor on the end of the cross-arm. The sensor should be as far from the ES-405
unit as possible without affecting the tripod balance. If a wind vane is employed, it must be
able to rotate fully without hitting anything. Plug the MET sensor into the corresponding
connector on the bottom of the ES-405. The sensor must be oriented to true north. Consult
the separate manual that comes with the MET sensor for alignment details.
3. AC Power Supply: If the ES-405 is to be operated on AC line voltage, bolt the power
supply to one of the legs of the tripod with U-bolts. Plug the power supply output cable into
the DC power input on the bottom of the ES-405. When the power supply is plugged into
AC power, the ES-405 will turn on automatically.

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9441
TSP Cap
(included)
48”
10”
12”
41” triangular
tripod footprint
Total Height:
70”
AC to 12 VDC
Power Supply
905 Tripod
(optional)
ES-405
Heated Inlet
Assembly
(included)
Standard ES-405 Configuration
Not to scale. Some items simplified for clarity.
Wind Sensor
(optional)
8”
( 6” deep )