The PI2103 analyzer measures concentrations of ammonia (NH₃) using Picarro’s patented Cavity Ring-Down Spectroscopy (CRDS) technology to deliver stable measurements with a parts-per-trillion (ppt) lower limit of detection (LOD) and negligible drift. 

This manual provides safety, contents, hardware setup, operation, GUI functions, user & file management, Modbus, troubleshooting, maintenance, data file viewer, and external valve sequencer information.