The Picarro G2103 NH3 Analyzer is a real time, trace gas monitor capable of measuring NH3 with parts-per-trillion (ppt) sensitivity. The heart of the G2103 is a sophisticated time-based measurement system that uses a laser to quantify spectral features of gas phase molecules in an optical cavity. The system leverages Picarro’s patented CRDS technology, which offers significant performance, ease-of-use and cost of ownership benefits compared to other absorption based technologies. An effective path length of up to 20 kilometers provides exceptional precision and sensitivity. A patented, high-precision wavelength monitor maintains absolute spectral position, thereby ensuring accurate peak quantification. Picarro’s optical cavities incorporate amazingly precise temperature and pressure control systems to ensure measurement fidelity over long periods of time, even in the harshest   environments. Because molecular spectroscopy is fundamentally affected by temperature and pressure, these parameters must be carefully controlled to provide a trustworthy quantitative measurement along with high linearity, precision, and accuracy.

    The G2103 delivers a best-in-class combination of precision, accuracy and ease of use that sets a new standard for trace ammonia and ambient ammonia monitoring applications. Easily transportable from site to site, these small instruments can be running within minutes out of the box, and can operate for many months without user interaction.

    The analyzer can be configured to automatically transmit data at regular intervals via the Ethernet or optional modem, and can output real-time data in digital format (via RS-232 interface) and via optional analog outputs. Users can connect remotely with the analyzer’s internal Windows based PC and control the instrument through a standard Remote Desktop connection. The analyzer can also use the Internet connection to automatically synchronize with an atomic clock time service. The onboard software includes a valve sequencer to automatically control up to five external solenoid valves or a rotary valve.