Met One Instruments SASS User manual

OPERATION MANUAL
Met One Instruments, Inc.
1600 NW Washington Blvd.
Grants Pass, OR 97526
Telephone: [phone]
Facsimile: [phone]
metone.com
SASS/SuperSASS
Speciation Sampler
SASS-9805
Rev A

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SASS Operation Manual - © Copyright 2023 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 express written permission of Met One Instruments, Inc.
Page 2 SASS-9805 REV A

Table of Contents
1. INTRODUCTION 8
1.1 About This Manual........................................................................................ 8
1.2 Technical Service......................................................................................... 8
1.3 SASS/SuperSASS2.5 Ambient Chemical Speciation Sampler ............................9
1.3.1 SASS/SuperSASSOverview ................................................................................... 10
1.4 SASS/SuperSASSSpecifications.................................................................. 11
2. SITE SELECTION and POSITIONING CRITERIA 13
3. SETUP 14
3.1 Unpacking The SASS ...................................................................................14
3.1.1 Shipping Damage.................................................................................................... 14
3.1.2 Shipment Contents ................................................................................................. 15
3.2 Electrical Service........................................................................................ 17
4. ASSEMBLY and DEPLOYMENT 18
4.1 Tripod Assembly .........................................................................................19
4.1.1 Tripod Leg Deployment.......................................................................................... 19
4.1.2 Securing the EX-905 Tripod .................................................................................. 19
4.2 Sass Sampling Head Assembly and Mounting ............................................... 20
4.3 Filter Canister Assembly and Installation..................................................... 23
4.3.1 Multi Cell Denuder .................................................................................................. 23
4.3.2 Sharp Cut Cyclone (SCC)...................................................................................... 26
4.3.3 Filter Media............................................................................................................. 29
4.4 Sample Configurations ............................................................................... 29
4.5 Control Box Mounting .................................................................................30
4.6 Ambient Temperature Sensor Mounting ........................................................31
4.7 Pump Box....................................................................................................31
4.7.1 Vacuum Hose Connections ................................................................................... 32
4.7.2 Cable Connections ................................................................................................ 33
5. USER INTERFACE and MENU SYSTEM 34
5.1 User Interface – Touchscreen Display Functions ..........................................34
5.2 Menu Hierarchy and Navigation...................................................................34
5.2.1 Home Screen(s) ..................................................................................................... 36
5.3 Menus........................................................................................................ 38
5.3.1 Operate Menu..........................................................................................................38

Page 2 SASS-9805REV A
5.3.2 Test Menu ................................................................................................................ 41
5.3.3 Setup Menu Screen ................................................................................................ 42
5.3.4 About Menu Screen................................................................................................ 46
6. SASS/SuperSASS SYSTEMS 47
6.1 Basic Operations ....................................................................................... 47
6.2 SASS/SuperSASS Distinctions .................................................................... 47
6.2.1 SASS Details........................................................................................................... 47
6.2.2 SuperSASS Details ................................................................................................. 49
6.3 Flow System ...............................................................................................51
7. SASS/SuperSASS CONFIGURATION 52
7.1 System Setup............................................................................................. 52
7.1.1 Clock Setup ............................................................................................................ 52
7.1.2 Unit ID Setup........................................................................................................... 52
7.1.3 Password................................................................................................................ 52
7.2 Communication Configuration .................................................................... 53
7.2.1 Ethernet Setup ....................................................................................................... 53
7.2.2 Notifications........................................................................................................... 54
8. SASS/SuperSASS OPERATION 55
8.1 Event Manager........................................................................................... 55
8.1.1 Add Sample Events................................................................................................ 55
8.1.2 Modifying sample events....................................................................................... 56
8.1.3 Importing sample events ........................................................................................57
8.1.4 Deleting Sample Events..........................................................................................57
8.2 Historical Events ........................................................................................ 58
8.2.1 Historical Events Navigation Guide .......................................................................58
8.2.2 System ON/Off Options ........................................................................................ 60
8.2.3 Data Transfer .......................................................................................................... 61
9. MAINTENANCE and TROUBLESHOOTING 62
9.1 Recommended Periodic Maintenance Table ................................................63
9.2 System Maintenance ..................................................................................63
9.2.1 System Inspection (during normal operations) ................................................... 64
9.2.2 System Cleaning .................................................................................................... 64
9.2.3 Denuder Replacement ........................................................................................... 64
9.3 System Test/Leak Check............................................................................65
9.3.1 System Leak Check Procedure............................................................................. 66
9.4 Calibration Procedures .............................................................................. 67
9.4.1 Temperature Calibration........................................................................................67

SASS-9805REV A Page 3
9.4.2 Pressure Calibration .............................................................................................. 69
9.4.3 Flow Audit and Calibration ....................................................................................70
9.4.4 Flow Sensor Replacement.......................................................................................71
9.5 Clear Memory ............................................................................................. 71
9.6 Basic Problem and Cause/Solution Table .................................................... 72
9.7 Additional Error Correction Instructions ...................................................... 73
9.7.1 Link Down Error.......................................................................................................73
10. DATA RETRIEVAL 74
10.1 USB Memory Device ................................................................................... 74
10.2 FSCommAQ Software................................................................................. 75
11. SPARE PARTS and ACCESSORIES 76
11.1 Consumables, Replacement Parts, and Accessories..................................... 76

Page 4 SASS-9805REV A
Table of Figures
Figure 1-1 SASS/SuperSASS .................................................................................................... 9
Figure 3-1 SASS Standard Accessories................................................................................. 16
Figure 3-2 SASS Tool Kit ........................................................................................................ 16
Figure 4-1 SuperSASS System ................................................................................................ 18
Figure 4-2 Tripod Storage/Transport Configuration........................................................... 19
Figure 4-3 Tripod Legs Deployed.......................................................................................... 19
Figure 4-4 Tripod Mounting Hole Pattern ............................................................................ 20
Figure 4-5 Sampling Head...................................................................................................... 21
Figure 4-6 Sampling Head Screw Locations ........................................................................ 21
Figure 4-7 Sharp-Cut Cyclone and Canister....................................................................... 22
Figure 4-8 SASS Canister Assembly Components .............................................................. 23
Figure 4-9 Sample Canister Assembly (PN 8370)............................................................... 25
Figure 4-10 Sharp Cut Cyclone (8670) ................................................................................ 26
Figure 4-11 Sharp Cut Cyclone Disassembled...................................................................... 26
Figure 4-12 Sharp Cut Cyclone Parts Diagram .....................................................................27
Figure 4-13 Penetration Curve, Sharp-Cut Cyclone (diam. 2.141mm)............................... 28
Figure 4-14 Expected Configuration of SASS Canisters..................................................... 29
Figure 4-15 Control Unit Mounting........................................................................................ 30
Figure 4-16 Control Unit Mounting Detail............................................................................. 30
Figure 4-17 SuperSASS Vacuum Hose connections............................................................. 32
Figure 4-18 Unattached Vacuum Hose................................................................................. 32
Figure 4-19 Vacuum Hose Attached..................................................................................... 32
Figure 4-20 Vacuum Release Tab ........................................................................................ 33
Figure 4-21 Vacuum Hose Released ..................................................................................... 33
Figure 5-1 Main Screen For SASS/SuperSASS ..................................................................... 36
Figure 5-2 Main Menu Drop-Down Selections ..................................................................... 36
Figure 5-3 Setup Menu............................................................................................................37
Figure 5-4 Clock Setup Screen..............................................................................................37
Figure 5-5 Numeric Keypad ...................................................................................................37
Figure 5-6 Alphanumeric Keypad..........................................................................................37

SASS-9805REV A Page 5
Figure 5-7 The Operate Menu ............................................................................................... 38
Figure 5-8 Stop Sample Screen ............................................................................................ 38
Figure 5-9 Event Manager..................................................................................................... 38
Figure 5-10 Transfer Data Screen......................................................................................... 39
Figure 5-11 Historical Events Main Screen............................................................................ 39
Figure 5-12 Upgrade Software Screen................................................................................. 39
Figure 5-13 Restart System Screen ...................................................................................... 40
Figure 5-14 Shut Down System Screen................................................................................. 40
Figure 5-15 Test Menu............................................................................................................. 41
Figure 5-16 System Test Screen (SASS) ............................................................................... 41
Figure 5-17 Temperature Calibration Screen........................................................................ 41
Figure 5-18 Pressure Sensor Calibration Screen.................................................................. 42
Figure 5-19 Clow Calibrate Screen....................................................................................... 42
Figure 5-20 Test Menu........................................................................................................... 42
Figure 5-21 Event Defaults Screen........................................................................................ 43
Figure 5-22 Clear Memory Screen........................................................................................ 43
Figure 5-23 Flow Sensor Screen........................................................................................... 43
Figure 5-24 Notification Configuration Screen...................................................................44
Figure 5-25 Logging Screen .................................................................................................44
Figure 5-26 Setup Display.....................................................................................................44
Figure 5-27 Clock Screen...................................................................................................... 45
Figure 5-28 Unit ID Screen .................................................................................................... 45
Figure 5-29 Password Screen............................................................................................... 45
Figure 5-30 Ethernet Configuration Screen......................................................................... 46
Figure 5-31 Remote Access Config Screen.......................................................................... 46
Figure 5-32 About Menu Screen ........................................................................................... 46
Figure 6-1 SASS Flow Diagram.............................................................................................. 48
Figure 6-2 SuperSASS Flow Diagram................................................................................... 50
Figure 7-1 Ethernet/IP Config................................................................................................ 53
Figure 7-2 Ethernet Config Auto/Static Dropdown ............................................................ 53
Figure 7-3 DNS Config Screen............................................................................................... 53

Page 6 SASS-9805REV A
Figure 7-4 Notification Configuration Screen ..................................................................... 54
Figure 7-5 Notification Recipients Screen ........................................................................... 54
Figure 7-6 Notification Type Screen .................................................................................... 54
Figure 8-1 Event Add Screen ................................................................................................. 55
Figure 8-2 Event Start Time Screen...................................................................................... 55
Figure 8-3 Sample Duration Screen...................................................................................... 55
Figure 8-4 Canister Set Dropdown....................................................................................... 56
Figure 8-5 Event Add Canister ID Screen............................................................................. 56
Figure 8-6 Saved Event ......................................................................................................... 56
Figure 8-7 Historical Events Main ......................................................................................... 58
Figure 8-8 Volume Summary ................................................................................................. 59
Figure 8-9 Min/Max (1) .......................................................................................................... 59
Figure 8-10 Min/Max (2) ........................................................................................................ 59
Figure 8-11 Max Delta-T......................................................................................................... 59
Figure 8-12 Warnings ............................................................................................................. 59
Figure 8-13 Power Interruption ............................................................................................. 59
Figure 8-14 Real Time Values ................................................................................................ 59
Figure 8-15 5-Minute Averages ............................................................................................ 59
Figure 8-16 Restart Screen.................................................................................................... 60
Figure 8-17 Shutdown Screen................................................................................................ 60
Figure 8-18 Copy to USB Screen ............................................................................................ 61
Figure 9-1 System Test Leak ................................................................................................. 66
Figure 9-2 Temperature Calibrate Screen with Selection Choices ................................... 67
Figure 9-3 3 Point Temp Calibration Screen ....................................................................... 68
Figure 9-4 Pressure Calibrate Screen .................................................................................. 69
Figure 9-5 Flow Calibrate Screen ........................................................................................ 70
Figure 9-6 Clear Memory Screen........................................................................................... 71
Figure 9-7 Link Down Screen .................................................................................................73
Figure 10-1 Copy to USB Storage Device ............................................................................. 74

SASS-9805REV A Page 7
Table of Tables
Table 1-1 Specifications........................................................................................................... 11
Table 4-1 Denuder Performance Test Results...................................................................... 24
Table 5-1 SASS/SuperSASS Menu Hierarchy ....................................................................... 34
Table 5-2 Main Display Parameter Descriptions ................................................................. 36
Table 9-1 Recommended Maintenance Schedule for the SASS/SuperSASS Sampler ...... 63

Page 8 SASS-9805REV A
1. INTRODUCTION
1.1 About This Manual
This manual presents assembly and operational procedures for the SASS (Speciation Air
Sampling System) and the SuperSASS (second-generation upgrade). Both the SASS and
the SuperSASS are trademarks of Met One Instruments. The SuperSASS includes all the
operating benefits of the SASS but with expanded sampling canister stations and
additional sequential programming in groups of sample collection canisters. The term
SASS will be used in this manual to identify basic concepts used for both the SASS and
the SuperSASS. The term SuperSASS will be used to identify features or details specific to
the SuperSASS.
1.2 Technical Service
Should support still be required after consulting the printed documentation, contact one
of Met One Instruments, Inc.'s expert Technical Service representatives during regular
business hours of 7:00 a.m. to 4:00 p.m. Pacific Standard Time, Monday through Friday.
In addition, technical information and service bulletins are found on our website. Please
contact us and obtain a Return Authorization (RA) number before returning any
equipment to the factory. This allows us to track and schedule service work and expedite
customer service.
Contact
Information:
Tel: + 541 471 7111
Fax: + 541 471 7115
Web: http://www.metone.com
Email: [e-mail]
Address:
Met One Instruments, Inc.
1600 Washington Blvd
Grants Pass, Oregon
97526 U.S.A.
Please have the instrument serial number available when contacting the manufacturer.
Serial numbers on most models manufactured by Met One Instruments are located on a
silver product label on the unit and printed on the calibration certificate. The serial
number will begin with a letter followed by a unique five-digit number, such as U15915.

SASS-9805REV A Page 9
1.3 SASS/SuperSASS2.5 Ambient Chemical Speciation Sampler
Figure 1-1 SASS/SuperSASS
*Sampling head, tripod, control box, ambient temp sensor and vacuum pump box.

Page 10 SASS-9805REV A
1.3.1 SASS/SuperSASS Overview
The SASS (Speciation Air Sampler System) chemical sampler was developed under
contract from the United States Environmental Protection Agency – US-EPA by Met One
Instruments. The SASS collects samples for the chemical and gravimetric analysis of
ambient air PM2.5 particles. PM2.5 refers to those airborne particles with diameters
smaller than 2.5 μm. These particles are comprised of sulfates, nitrates, organic carbon,
soot-like carbon, and metals. With the recently enacted fine particle standard for PM2.5,
the US-EPA has mandated a new sampling network for determining the concentration of
each species. The SASS has been specifically designed to meet these needs.
The measurement techniques for the different chemical constituents, including semi
volatile components such as nitrates, have been developed through special sampling
programs 1-3. These studies have shown that other sampling techniques are required for
analyzing the different chemical constituents of PM2.5. Met One Instruments, Inc. has
worked closely with the US-EPA and potential end users to develop the SASS and the
SuperSASS to comply with government regulations and incorporate features that the end
user will likely find desirable. These features include portability, and a design, which
allows the collection of samples without the user having to handle either the sample filter
or the denuder.

SASS-9805REV A Page 11
1.4 SASS/SuperSASS Specifications
Table 1-1 Specifications
PARAMETER
SPECIFICATION
Analytes: PM2.5:Mass and trace metals, organic and elemental carbon, sulfate, nitrate,
other ions, and elements
Number of Canisters: SASS=Five (5), SuperSASS=Eight (8) maximum
Sample Flow Rate:
6.7 Liters/minute +0.1 to -0.2 LPM per canister, active flow-controlled
channels. (SASS and SuperSASS)
7 Liters/minute per canister, critical orifice channels. (SASS only)
Flow Accuracy:
+0.1 to -0.2 LPM or L/min (Liters Per Minute)
Inlet: Sharp Cut Cyclone (SCC), (D50 2.5
µm AED) Detachable from canister
Denuders: Multicell, magnesium oxide, sodium carbonate, citric
Filter Type: 47mm PTFE disc filters standard. Other filter material types available
Filter Holder: Accommodates standard EPA-pattern white Delrin filter cassettes
Filter Per Canister: One or two in series
Ambient Temperature:
(-30 to 50°C) Bead thermistor in naturally aspirated radiation shield
Filter Temperature: (-30 to 50°C) bead thermocouple at inlet for canister 1 (SASS)
(-30 to 50°C) bead thermocouple at inlet of each canister (SuperSASS)
Logged Parameters:
Ambient Temp., °C (-30 to 50)
Filter Temp. °C (-30 to 50)
Sample start date and time
Sample stop date and time
Status of Sampler, Flags
Volumetric flow rates (L/m)
Volume (m3/hr)
Logging Interval: 5 minute averaging
Sample Events: 24-hour samples standard. Programmable start date/time and duration
Support Stand: Tripod with platform-mounting feet and mast
Solar Radiation: Shield, 20” (50.8 cm) diameter. X 12” (30.48 cm) H, Naturally Aspirated
Control Box: Weatherproof enclosure
Width:10” (25.4 cm), height:11.11” (28.2 cm), depth: 6.25” (15.6 cm)
Vacuum Pump: 120VAC,60 HZ, 4.7 AMPS or 220VAC 50HZ, 57 AMPS Vacuum diaphragm
pump

Page 12 SASS-9805REV A
Input Voltage: 120VAC (optional 220VAC upon request)
AC/DC Converter: 12V, 5.8A, 70 W, AC/DC SWITCHING
Data Collection: USB data port
Ethernet
Memory Capacity: 32 Gigabytes
User Interface: 4.75” (11.2 cm) x 6.75” (17.1 cm) graphic touchscreen
Deployed Dimensions: Width: 14.4” (37 cm), height: 77” (2.0 m), depth: 14” (36 cm)
Footprint Dimensions
Width: 23.5” (59.69 cm), depth: 24.5” (62.23 cm)
Weight:
Sampler: 45Ib (20.4 kg) (without inlet head), Tripod: 10.5Ib (4.8 kg)
Power Supply: 100VAC to 240VAC, 50W
* The approximate upper concentration limit is based on the sampler’s ability to maintain 16.67 L/min sample flow over the entire 24-
hour period, despite PTFE filter loading with typical urban PM2.5 particulate. Actual concentration limits will vary depending on
ambient conditions, altitude, and particulate type.
Specifications may be subject to change without notice.

SASS-9805REV A Page 13
2. SITE SELECTION and POSITIONING CRITERIA
Met One Instruments, Inc. recommends checking local regulations and guidance
documentation before selecting the site to install the SASS/SuperSASS. For example,
US-EPA provides a variety of guidance documents where site selection issues are
addressed. Such guidance and regulation may provide information concerning:
•Inlet height.
•Spacing and clearance.
•Proximity to particulate sources, both mobile and stationery.
•Additional siting criteria or considerations.
These details should be understood before selecting a site.

Page 14 SASS-9805REV A
3. SETUP
Use the following information to correctly assemble, configure, and deploy the
SASS/SuperSASS PM2.5. Installation of the SASS/SuperSASS PM2.5 should be performed
by personnel familiar with environmental monitoring equipment. There are no special
precautions or handling concerns except for the standard level of care required for
handling scientific equipment. Refer to the instructions and diagrams on the following
pages.
3.1 Unpacking The SASS
NOTE: Please keep all the special shipping items (box, foam packing material, etc.)
used to ship the SASS/SuperSASS PM2.5. They should be re-used if the
SASS/SuperSASS PM2.5 is to be transported (changing site locations, returning to the
factory, etc.). Contact Met One Instruments for replacement packing materials if
necessary.
3.1.1 Shipping Damage
Any damage incurred to the equipment during shipping is 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. Follow any special unpacking
instructions provided by the carrier as all items are carefully removed from the
containers and each component inspected. It is recommended to document and
photograph all damaged packages and items before, during, and after unpacking
them. Contact Met One Instruments to arrange for any replacement items needed.
•Carefully unpack items from the box.
•Inspect all components for damage.
•Compare all components to the packing list to ensure all items have been
shipped.
•After unpacking all components/sub-assemblies, take a photo of each with
labels still attached and check to make sure they match all
components/sub-assemblies listed on the packing list.
From the list provided below, check that all mandatory, standard equipment has been
included (indicated by serial number):

SASS-9805REV A Page 15
3.1.2 Shipment Contents
The normal instrument configuration is supplied with the following standard accessories
listed below.
SASS/Super SASS System Check-Off List
One operating manual
One control box (83375)
One sampling head: (8861-1) SASS; SuperSASS (8861-2)
One tripod assembly (8864)
One pump box with power supply: (8862-1) SASS; (8862-2) SuperSASS
One temperature sensor (065)
One radiation shield (074)
One canister assembly block (8421)
Speciation sample canisters (8370): SASS (5); SuperSASS (8)
Sharp-cut cyclones (8670): SASS (5); SuperSASS (8)
MgO-coated denuder (8382): SASS (1); SuperSASS (2)
One cassette transport case (8460)
One tool kit (8629)
The standard components for the SASS/SuperSASS are shown in Figure 3-1 SASS
Standard Accessories
Optional Accessories
The following optional accessories may be purchased separately:
MgO coated denuder (8382)
47mm 2-micron pore-size Teflon filters (460138)
47mm glass fiber filters (460138)
47mm 1-micron pore-size nylon filters (460141)

Page 16 SASS-9805REV A
Figure 3-1 SASS Standard Accessories
Figure 3-2 SASS Tool Kit

SASS-9805REV A Page 17
3.2 Electrical Service
The sample site needs to be equipped with AC power and a standard weatherproof
outdoor electrical outlet. Power Designations are specified at the time of purchase. To
provide electrical hazard protection, a heavy green/yellow ground cable is attached to
the bottom of the pump box. This ground cable provides an electrical hazard ground, and
static discharge path. It also provides some protection for the equipment from induced
electrical currents that may occur during nearby lightning strikes. If a ground rod is not
available, a cold-water pipe can be used as an alternative. If a water pipe must be used,
be sure that a suitable type of compression grounding clamp is attached to the water
pipe.
NOTE: If a water pipe is used as a ground, be sure that it is a cold-water pipe, and not a
gas pipe, or hot water pipe. They do not provide a suitable ground or have the
potential for explosion.
In addition, it is recommended that one leg of the mounting tripod also be grounded to
the same earth ground used to ground the pump box. For maximum effectiveness, a
copper cable of AWG # 6 or larger should be used to ground the tripod.
The sampler should be equipped with a backup uninterruptable power supply (UPS)
during applications where sample invalidations due to power failures are unacceptable.
The supplied power must be rated for the electrical load and appropriately configured for
an outdoor application. Consult a qualified electrical contractor. See Table 1-1 for
electrical specifications.

Page 18 SASS-9805REV A
4. ASSEMBLY and DEPLOYMENT
The SASS/SuperSASS design allows for easy setup and deployment for long or short-
term sampling applications. The following sections in Chapter 4, "ASSEMBLY and
DEPLOYMENT," explain setup procedures and proper system configuration for the SASS
and SuperSASS.
Figure 4-1 SuperSASS System
Aspirated solar radiation shield, canister inlets, tripod, control box, and vacuum pump box.