Flow Calibration; Cleaning & Maintenance; Status Codes - Aethlabs microAeth AL30 Quick Start Manual

Flow Calibration

All microAeth instruments are flow calibrated at approximately standard atmospheric
pressure and room temperature to ensure accurate flow rates at the time of production.
Local operating conditions vary around the world. Before instrument deployment, we
suggest that the flow rates at the inlet of your microAeth instrument are checked.
In general, and especially for sampling at higher elevations, AethLabs suggests calibrating
the flow of your microAeth in the location at which you plan to use it. This will ensure that
the internal mass flowmeter is calibrated for the in-situ atmospheric pressure.
If re-calibration is needed, it is possible to calibrate to within 1-2% on average using the
AethLabs MAx/ALx Series Flow Calibration Kit. Only the external mass flowmeter provided
in the AethLabs MAx/ALx Series Flow Calibration Kit is compatible with the AL30.
IMPORTANT: Use the AethLabs MAx/ALx Series Flow Calibration Kit along with the
Calibrate flow window of the microAeth Interface Webpage to conduct a flow calibration of
the AL30.
Cleaning & Maintenance
If the microAeth is exposed to any liquids or other damaging contaminants, immediately
turn off the instrument, disconnect all cables, and remove any foreign substances
in contact with the instrument. Do not use liquids or other cleaning products on the
instrument. Wait until the microAeth is completely dry before charging or turning on the
instrument. Only AethLabs authorized service personnel should clean the air passageways
and internal components of the microAeth.
AethLabs recommends sending your instrument for annual service, or more frequent
service depending on use and operating conditions. Cleaning intervals will vary based on
the sampling environment and concentrations.
In addition to any necessary repairs, AethLabs offers flow calibration service and standard
maintenance service (including full diagnostics, cleaning, flow calibration, and instrument
testing) at the AethLabs San Francisco office. AethLabs also has authorized repair
locations in Europe and South America.
AL30 Quick Start Guide
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Status Codes

Code Value
1
2
4
8
16
AL30 Quick Start Guide
AethLabs microAeth
®
Readable status Status Description
Battery Low Battery is low
PCB Power Supply 5V5 Error PCB Power Supply 5V5 Error
PCB Power Supply Reference
PCB Power Supply Reference Error
Error
Flow unstable during sampling and
Flow Unstable measurement period. Flow deviates from
target flow setpoint by more than ±5%.
Optical Calibration Error Starting optical values are out of range
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