Aethalometer: Optical Transmissometer Model OT21
Optical Transmissometer Model OT21
The Optical Transmissometer analyzes filter-collected samples for Aerosol Black Carbon ('BC' or 'EC') using 880 nm light, and Aromatic Carbon (‘OC’) using 370 nm light, to match the optical analysis of the standard Aethalometer®.
Accepts 47, 37 and 25mm diameter filters. Barcode scanner option is available for sample identification. The instrument can be connected to personal computer using included Data Logger software. Constructed in lightweight, bench top case with operation from 12 V DC: line power supply for operation from 110-220 V AC.
The transmissometer analysis is non-destructive, allowing for further chemical analysis to be performed. The instrument analysis process is fully automated and requires no support gases or consumables. A second filter position inside the analysis chamber allows for simlulateous reference (blank) measurement to be made along with the sample measurement.
Analysis results are displayed on the front main screen and communcated externally via COM port to a computer. The data is output in a .csv compatible format for easy importing into spreadsheet application.
