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YES MFR Instrument Descriptions and Histories


Model Measurement
Notes (below)		 Units Install
Date		 Removal
Date		 Current
SN		 Current
CF
MFR-7 Global Horizontal W/m2 01/30/2012 - 625 N/A
Global Horizontal Irradiance measured by a thermopile pyranometer, with a spectral response from 300 to 2800 nm. Also includes independent interference filter-photodiodes to measure the spectral irradiance at 6 wavelengths (10 nm FWHM).
MFR-7 Diffuse Horizontal W/m2 01/30/2012 - 625 N/A
Diffuse Horizontal Irradiance measured by the above pyranometer and 6 photodiodes, when band rotates and blocks the sun.
(calc) Direct Normal W/m2 01/30/2012 - - N/A
Calculated using Global and Diffuse measurements.
(calc) Zenith Angle o 01/30/2012 - - -
Solar zenith angle calculated by MFR data acquisition system.
- MFR Temperature oC 01/30/2012 - 625 -
Temperature of MFR head unit, which is maintained at 45oC.
- MFR Heater Voltage VDC 01/30/2012 - 625 -
Voltage applied to MFR heaters.
Notes:
  • Data Sample rate is every 15 seconds with 1-minute average output.
  • Data was collected by YESDAS, then converted from Spreadsheet UTC time to Mountain Standard Time (MST), then sent to MIDC.
  • The MFR cleaning maintenance history is available.

[NREL] [MIDC] [SRRL YES MFR]