Aethlabs microAeth MA200, Operating Manual

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64 microAeth
®
MA Series MA200, MA300, MA350 Operating Manual microAeth
®
MA Series MA200, MA300, MA350 Operating Manual 65 AethLabs AethLabs
6.2.2. Minimal Structure
SingleSpot™ sampling mode:
Preamble, Date / Time GMT, Timezone offset, Status, Battery, Tape position, Flow total, UV BC, IR BC,
CKSUM
DualSpot® sampling mode:
Preamble, Date / Time GMT, Timezone offset, Status, Battery, Tape position, Flow total, Flow1, Flow2, UV
BC1, UV BC2, IR BC1, IR BC2, CKSUM
Minimal Structure Details
Header Units / Format Example Data Description
Preamble
Alphanumeric
(XXXXXX)
55AAFF Identification for serial data stream format.
Date / Time
GMT
Year, month, day,
hours, minutes,
seconds (yyyy-MM-
ddTxx:xx:xx.xx)
2018-03-
21T14:17:00.00
Local date and time produced from instrument's internal
clock using Coordinated Universal Time (UTC).
Timezone offset Minutes (Integer) -420
Timezone offset from Coordinated Universal Time (UTC)
in minutes.
Status Whole number 1 See section 6.3. Status Codes for detailed information.
Battery
Percent
(Whole number)
88 Percent of instrument internal battery remaining.
Tape position Whole number 1
Value of tape position counter. Increments by 1 after
each tape advance. Counter is reset when 'Release
Tape' is used to release the tape cartridge no matter the
position of the newly inserted tape cartridge.
Flow total Milliliters per minute
(Decimal number)
100.10
Measured total flow through the instrument in milliliters
per minute. Measured in SingleSpot™ and DualSpot®
sampling modes.
Flow1
Milliliters per minute
(Decimal number)
60.23
Measured flow through sample spot sense1 of the
instrument in milliliters per minute. Measured in
SingleSpot™ and DualSpot® sampling modes.
Flow2
Milliliters per minute
(Decimal number)
39.87
Calculated flow through sample spot sense2 of the
instrument in milliliters per minute. Calculated in
DualSpot® sampling mode. No flow in SingleSpot™
sampling mode.
UV BC1
Nanograms per
cubic meter (ng/m
3
)
(Integer)
23201
Calculated mass concentration for ultraviolet (UV)
wavelength for sample spot sense1 in nanograms per
cubic meter. Calculated in SingleSpot™ and DualSpot®
sampling modes.
UV BC2
Nanograms per
cubic meter (ng/m
3
)
(Integer)
24101
Calculated mass concentration for ultraviolet (UV)
wavelength for sample spot sense2 in nanograms per
cubic meter. Calculated in DualSpot® sampling mode.
IR BC1
Nanograms per
cubic meter (ng/m 3
)
(Integer)
23958
Calculated mass concentration for infrared (IR)
wavelength for sample spot sense1 in nanograms per
cubic meter. Calculated in SingleSpot™ and DualSpot®
sampling modes.
IR BC2
Nanograms per
cubic meter (ng/m
3
)
(Integer)
23745
Calculated mass concentration for infrared (IR)
wavelength for sample spot sense2 in nanograms per
cubic meter. Calculated in DualSpot® sampling mode.
CKSUM
Alphanumeric
(XXX)
D39
6.3. Status Codes
Code Value Readable status Status Description
1 No status notifications
2 Start up Instrument in sampling and measurement startup
4 Tape advance Tape advance occurring during sampling and measurement period
8 N/A
16 Optical saturation Optical saturation
32 Sample timing error Sample timing error
64 Sampling spot 2 of DualSpot ® loading compensation is active
128 Flow unstable
Flow unstable during sampling and measurement period. Flow
deviates from target flow setpoint by more than ±5%.
256 Pump drive limit Flow out of range during sampling and measurement period
512 Time source manual
Time synchronization source is manual (synchronized to application/
computer time or no GPS time is available)
1024
User skipped tape
advance
User skipped tape advance. No tape advance occurred at start of
sampling and measurements.
NOT RECOMMENDED!
SKIPPING THE AUTOMATIC TAPE ADVANCE AT THE BEGINNING
OF SAMPLING AND MEASUREMENTS SHOULD ONLY BE USED
WHEN GOOD DATA QUALITY IS NOT NEEDED.
If more than one status code is active simultaneously, the resulting code written to the data file is the sum of
the error codes shown in the table above. For example, if the instrument is starting up (status code = 2) and
the sampling spot 2 of DualSpot
®
loading compensation is active (status code = 64), the status code shown
in the data file will be 66.