MAO/UHSAS/S1 - Instrument sample flow low

Instrument sample flow steadily decreasing from the nominal 50 sccm to about 13-14 sccm 
over several days due to an internal obstruction. Possible particle losses, potentially 
affecting the measured total number concentration and sizing.

Use data with caution

• Particle size distribution(size_distribution)
• Sample pressure(sample_pressure)
• Main flow rate(flow)