HTabsOverviewThe UHSAS-G is an optical-scattering, laser-based aerosol particle spectrometer for sizing particles in the 0.06 µm to 1 µm range. The instrument counts particles in up to 100 user-specified sizing bins, with a resolution as fine as 1 nm/bin. This high sensitivity makes the UHSAS-G ideal for aerosol research and filter testing. EUMETNET. Key Features Superior Resolution Get accurate sizes for even the smallest particles, and eliminate sizing uncertainty associated with scattering spectrometers that measure at sizes larger than the excitation wavelength. High Throughput Categorize particles by size in up to 100 bins (user selects number of bins and boundaries), and count up to 3,000 particles per second. Exceptional versatility The UHSAS-G comes with LabVIEW-designed software that provides a user-friendly virtual instrument panel for the control and data display of the UHSAS-G. For instance, the program enables the user to do the following tasks: Start data recording and sampling View a histogram of particles binned by diameter, by transit time, or by peak optical signal Set boundaries for the histogram bins Control sample flow and monitor temperature, pressure, and laser current Calibrate the instrument Dynamic Gain control Compensate for small drifts in laser power via automatic gain control. Advanced Tech& software Get an on-board computer, built-in monitor, and powerful LabVIEW-designed software for easy, real-time data analysis. UHSAS-G.pdf SpecificationSpecification: Parameter Specification Auxiliary Parameters TemperaturePressure Derived Parameters Particle diameter Number Concentration Range 3,000 particles/second Particle Size Range 60 nm – 1 µm Aerosol Medium Air, 0 - 30 °C (32 - 86°F) Lasers Solid-state Nd3+:Y LiF4: ~1054 nm, 1 kW/cm2 intracavity circulating powerPump Laser: ~797 nm, 1.6 W Number of Size Bins 100 max:99 standard bins (98 if both overflow and underflow are enabled)One overflow bin and one underflow bin Sample Flow Standard option: 1 – 100 standard cm3/minute (typically 50)Other options available Flow Control Controlled from software; can also be manually adjusted via mass or volume flow controller Front Panel Display Built-in monitor, 2 USB 2.0 ports Rear Panel Connections System power switch, system power connection, Ethernet, exhaust vent, exhaust port, serial stream connection Computer System On-board Intel®Celeron™ CPU504 MB RAM80 GB hard drive for data storageUser interface via standard keyboard, mouse, and built-in monitor (included) Software Executable program written in LabVIEW Data Recording Output file written to computer hard driveOutput data sent to serial port Communications Output Serial, Ethernet, USB Power Requirements 100-240 VAC, 47-63 Hz, 200W Dimensions 56 cm L x 43 cm D x 24 cm H Environmental Operating Conditions Temperature: 0 – 30°C (32 - 86°F)RH: 0 – 100% RH non-condensingAltitude: Sea level to 4 km Further InfoDocuments: UHSAS-G.pdf
