88
microAeth
®
MA Series MA200, MA300, MA350
Operating Manual
microAeth
®
MA Series MA200, MA300, MA350
Operating Manual
89
AethLabs
AethLabs
8.3. MA350
Measurement method
Real-time, 5 wavelength spectrum analysis by
measuring the rate of change of transmitted light
due to continuous particle deposition on filter.
Measurement at 880 nm interpreted as concentration
of Black Carbon (‘BC’). Measurement at 375 nm
interpreted as Ultraviolet Particulate Matter (‘UVPM’)
indicative of woodsmoke, tobacco, and biomass
burning.
Measurement wavelengths
880 nm, 625 nm, 528 nm, 470 nm, 375 nm
DualSpot® Loading Compensation
Real-time analysis by measuring the rate of change in
absorption of transmitted light due to the continuous
collection of aerosol on filter. Simultaneous collection
on two spots in parallel at different flow rates.
Timebases
1, 5, 10, 30, 60, or 300 seconds
Flow Rates
Internal pump provides 50, 75, 100, 125 or 150 ml/
min, DualSpot® compensation not compatible with
all settings
Measurement Range
Per sampling location, 0-1 mg BC/m
3
, filter sampling
location lifetime dependent on concentration and
flow rate setting, decreasing proportionally with
lowest wavelength optical source enabled:
IR only mode, average 5 μg BC/m
3
for 24 hours at
100 ml/min
IR only mode, average 100 μg BC/m
3
for 3 hours at
50 ml/min
IR only mode, average 1 mg BC/m
3
for 15 minutes at
50 ml/min
Measurement Resolution
0.001 μg BC/m
3
Limit of Detection
30 ng BC/m
3
, 5 min timebase., 150 ml/min flow rate,
SingleSpot™
Pump Options
Standard internal diaphragm pump
Flow Control
Internal mass flowmeters with closed-loop control
Filter Material / Capacity
MA300/350 Filter Tape Cartridge with
Polytetrafluoroethylene (PTFE) material (85 sampling
locations)
Sampling
3 mm diameter spot(s) created on filter tape. User
selectable DualSpot® or SingleSpot™ mode.
Environmental Sensors
Accelerometer, Relative Humidity, Temperature,
Altimeter/Barometer
Dimensions
L: 199.90 mm (7.87 in), W: 99.82 mm (3.93 in),
D: 69.85 mm (2.75 in)
Weight
965 grams (34.04 ounces)
Memory
16GB internal flash memory, providing storage for
31,250,000 data lines; 1 second timebase: 361 days
of data
On-board Interface
Low Power Screen, 3 Buttons
Location services
GPS with Internal Antenna
Date/Time Format
ISO 8601 with satellite synchronization or manual
computer synchronization
Wireless
802.11 b/g/n Wi-Fi with AES hardware encryption,
Bluetooth Low Energy. Available in future firmware
releases.
Connections
Via external sealed connector for 3.3V TTL Serial and
DC power input via barrel jack, Aerosol sample inlet
and outlet ports, USB 2.0 on inside panel
USB Communication / Client Application
USB connectivity to cross-platform microAeth®
Manager software available on macOS® and
Windows®. microAeth Manager software is
included and facilitates settings configuration and
data download. Exported data can be uploaded
to AethLabs Dashboard server for processing and
visualization.
Serial Communication
3.3V TTL serial connectivity for uploading new
instrument firmware, flow calibration, streaming data
and polling protocols to request data, modify settings
and control. Command line interface (CLI) polling
protocols: AethLabs protocol and Bayern-Hessen
protocol.
Total Run Time
Up to 56 hours at 60 second timebase, 100 ml/min
flow rate on single battery charge. Run time may vary
due to PM concentrations and settings.
Battery
Internal 3.6V, 12800 mAh (46.08 Wh), 4 cell
rechargeable lithium-ion battery
Charging
Fast charging DC via barrel jack AC adapter (~11.75
hours to full charge, instrument turned off) or
USB charging (~25.75 hours to full charge,
instrument turned off)
Power Supply Adapter: Input: 100~240 VAC 50/60Hz
0.4A, Output: 5VDC / 2A, with option for Type A, C,
G, or I plug
Operating Environment
5 ~ 40 °C operating, non-condensing.
Specifications are subject to change without notice.
Specifications are subject to change without notice. microAeth MA Series products are protected by patent #8,411,272.
Additional patents pending.
microAeth® is a registered trademark of microAeth Corporation dba AethLabs.
Aethalometer® and DualSpot® are trademarks of Magee Scientific Corporation used under license.
microAeth® MA Series MA200, MA300, MA350 Operating Manual, Dec 2018 rev03
