A collection of CRBasic datalogger programs for validating calibration of trace gas analyzers. In general, the analyzers are not modified in any way -- their performance is just recorded and summarized.
These programs are intended as single-shot routines. The user does initial setup, triggers the program, and merely supervises operation.
A calibration assessment routine for the EC150 using a CR1000. Supports up to 3 gas cylinders plumbed into solenoid valves controled by ports C6-C8.
These programs are fully user-controlled. Basically:
- With the
Run modein Off... - Enter calibration gas concentration, tolerance and any relevant notes (we recommend listing the cylinder # or other traceability reference)
- Switch
Run modeto Recording for a sufficiently long duration - Revert
Run modeback to Off
For a Campbell Scientific EC150 open-path CO2/H2O gas analyzer.
For assessment of a 2B Technologies model 205 dual beam ozone monitor using a CR6.
For assessment of a 2B Technologies model 405 nm NOx box using a CR6.
For simultaneous assessment of a 2B Technologies model 405 nm and a Themo Environmental Corp (TECO) model 42C.
For a Los Gatos Research ultraportable greenhouse gas analyzer.