UV Calc Frequently Asked Questions

FAQ Legend:

All Products Product Class (Data Acquisition) This Product (UV Calc)

4. Instrument Selection

1. What other meteorological sensors (such as temperature, humidity, pressure, wind direction/speed) can be added to the YESDAS-2 connected to an MFR, UVMFR, or SPUV?

Any meteorological sensor with either a voltage current or digital (TTL) pulse type output (but not RS-232) can be added. The YESDAS-2 manual covers this subject in detail.

2. Can you compare the UVB-1 instrument with the Blue Wave BW-100 radiometer from Vital Technologies Corp. or other broadband UV radiometers?

Vital went out of business in 1997. The BW-100 and their other broadband instruments used thin film interference filters instead of phosphors and were therefore not as stable as most UV-B users require. In contrast, in 1993, our model UVB-1 was evaluated by NIST's radiometric physics division along with other manufacturers' instruments. Based on the outcome of these NIST tests, the US government selected YES UVB-1 instruments for the UV monitoring network run by the U.S. Department of Agriculture. For more information, visit the USDA UV-B monitoring program at http://uvb.nrel.colostate.edu.