Aethlabs microAeth MA200 User Manual

52 microAeth
®
MA Series MA200, MA300, MA350 Operating Manual microAeth
®
MA Series MA200, MA300, MA350 Operating Manual 53
AethLabsAethLabs
Example Response Message for AethLabs Implementation of Bayern-Hessen Protocol
The following hypothetical dataline (DualSpot) that might be available on the instrument at the time
the 'DA' command message is issued:
MA200-0011,25157,18,1,1.08,2018-12-06T20:29:01.00,-480,37.746172547,-122.
420371919,0.146,60,64,100,342,-611,
-24357,1,100.00,99.99,58.56,41.43,32.95,23.97,9.69,100596.00,33.62,DS-UV-B-G-R-IR,
681907,622183,917573,25.9730,18.4158,-0.0198,780829,620878,736176,19.5300,13.7320,
-0.0103,781964,625168,706936,16.6708,11.6571,0.0168,806763,690497,782392,13.4350,9.3264,
-0.0353,675814,773992,951767,9.4010,6.3921,
-0.1671,415,374,274,396,376,330,427,478,594,377,340,255,510,410,198,5D91
Expected response message:
MD07 001 +2740+02 00 00 011 000000 002 +3300+02 00 00 011 000000 003 +5940+02 00 00 011
000000 004 +2550+02 00 00 011 000000 005 +1980+02 00 00 011 000000 006 +1000+02 00 00 011
000000 007 +1000+00 00 00 011 000000
Expected response message values:
UV BCc 274
Blue BCc 330
Green BCc 594
Red BCc 255
IR BCc 198
FlowTotal 100
Tape Position 1
5.10. Filter Media
The sample collection and analysis is performed on a roll of polytetrauoroethylene (PTFE) lter tape that is
housed in the lter tape cartridge. As the aerosol sample is drawn through the lter media by the instrument’s
integrated, internal sample pump, the aerosol sample collects gradually on the lter medium to create a
gray spot 3mm in diameter. The microAeth determines the optical attenuation as the accumulated particles
increase the optical density of the lter spot. After the optical density reaches a certain level, which is set by
the ATN Tape Trigger setting, the lter spot must be replaced to maintain measurement integrity. The lter
tape roll is automatically advanced to provide a new clean spot location for sampling. IMPORTANT: Do not
rewind the lter tape cartridge, or use previously sampled lter tape sampling locations.
The tape position counter counts each time the lter tape cartridge advances. This counter is reset every time
the tape clamp mechanism is released and then reclamped. The instrument does not specically know the
position of the lter tape in the lter tape cartridge in relation to the beginning or end of a lter tape cartridge.
The user is responsible for keeping track of this process using the counter as a guide. The instrument is able
to know and notify the user when a lter tape cartridge has reached the end of the tape.
5.11. Data Safety
AethLabs highly recommends keeping a prestine backup of the original data collected on the instrument in an
exported le.
6. Viewing and Analyzing Measurement Data
6.1. Data File Structure
The data les exported through the microAeth Manager are plain text with the extension .csv. Each data
le consists of a header containing descriptive information; a line identifying the data columns; and then a
number of data lines with each item separated by a comma. As the microAeth is starting a new sampling and
measurement session, the rst few minutes of data do not contain the BC calculation; all subsequent lines of
data show this value except during an automatic tape advance.
Exported Data File Structure:
Serial number, Datum ID, Session ID, Data format version, Firmware version, App version, Date / time local,
Timezone offset (mins), Date local (yyyy/MM/dd), Time local (hh:mm:ss), GPS lat (ddmm.mmmmm), GPS long
(dddmm.mmmmm), GPS speed (km/h), GPS sat count, Timebase (s), Status, Battery remaining (%), Accel
X, Accel Y, Accel Z, Tape position, Flow setpoint (mL/min), Flow total (mL/min), Flow1 (mL/min), Flow2 (mL/
min), Sample temp (C), Sample RH (%), Sample dewpoint (C), Internal pressure (Pa), Internal temp (C), Optical
cong, UV Sen1, UV Sen2, UV Ref, UV ATN1, UV ATN2, UV K, Blue Sen1, Blue Sen2, Blue Ref, Blue ATN1,
Blue ATN2, Blue K, Green Sen1, Green Sen2, Green Ref, Green ATN1, Green ATN2, Green K, Red Sen1, Red
Sen2, Red Ref, Red ATN1, Red ATN2, Red K, IR Sen1, IR Sen2, IR Ref, IR ATN1, IR ATN2, IR K, UV BC1, UV
BC2, UV BCc, Blue BC1, Blue BC2, Blue BCc, Green BC1, Green BC2, Green BCc, Red BC1, Red BC2, Red
BCc, IR BC1, IR BC2, IR BCc
Exported Data File Structure Details
Header Units / Format Example Data Description
Serial number
Model and number
(MAxxx-xxxx)
MA200-0001 Unique identication number for the Instrument.
Datum ID Whole number 1
Identication number assigned to each line of
recorded data.
Session ID Whole number 1
Identication number assigned to each sampling
and measurement session. This value is incremented
each time a new sampling and measurement
session is started (changes from STOPPED to
SAMPLING mode).
Data format
version
Natural number 1
Unique identication number for exported data le
structure used when exporting data from microAeth
Manager software.
Firmware
version
Decimal number 1.08
Unique identication number for rmware running on
instrument when measurement was recorded.
App version Decimal number 1.03
Unique identication number for microAeth Manager
software that was used to export data le.
Date / time local
Year, month, day,
hours, minutes,
seconds (yyyy-MM-
ddTxx:xx:xx)
2018-03-21T14:17:00
Local date and time calculated from instrument's
internal clock using Coordinated Universal Time
(UTC) and Timezone offset.
Timezone offset
(mins)
Minutes (Integer) -420
Timezone offset from Coordinated Universal Time
(UTC) in minutes.
Date local
(yyyy/MM/dd)
Year, month, day
(yyyy/MM/dd)
2018/03/21
Local date calculated from instrument's internal
clock using Coordinated Universal Time (UTC) and
Timezone offset.

Aethlabs microAeth MA200 Specifications

General

Brand	Aethlabs
Model	microAeth MA200
Category	Measuring Instruments
Language	English