| R# | Serial Number | Calibration Facility | Calibration Date | Date for next Calibration | Responsivity [45] | Calibration Factor [45] | Instrument::Make | Instrument::Model | Instrument::Description | Instrument::Program | Instrument::Factory Calibration | Instrument::Date of Factory Calibration | Responsivity Bins [2 deg] | Responsivity Function Coefficients | Other Calibrations | Calibration File | Contact Person | Documentation Title | Calibration Method | Calibration Notes | Other Information | Datalogger Entry Date | Responsivity [45] [Corr] | Calibration Factor [45] [Corr] | Correction Method | Responsivity Bins Average [2 deg] |
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| 1 | 31198F3 | NREL's Outdoor | 04/11/1996 | | 3.37 tg/sheet (temp -30 to +50°C) | | Eppley | PIR | Precision Infrared Radiometer | ARM/SGP | 3.37 (temp -30 to +50°C) | 04/11/1996 | | | | | Tom Kirk | Standardization of Eppley PIR | | | | | | | | |
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| 2 | 31198F3 | NREL's Outdoor | 12/07/2009 | 12/07/2010 | K0=0; K1=0.264; K2=0.993; K3= -3.8 | | Eppley | PIR | Precision Infrared Radiometer | ARM/SGP | 3.37 (temp -30 to +50°C) | 04/11/1996 | | | | | Reda | | | U95=±2.87 W/m² | | 12/21/2009 | | | | |
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| 3 | 31198F3 | NREL's Outdoor | 07/10/2012 | 07/10/2014 | K0=-0.01;K1=0.27191;K2=1.00001;K3=-2.82;Kr=7.044E-04 | | Eppley | PIR | Precision Infrared Radiometer | ARM/SGP | 3.37 (temp -30 to +50°C) | 04/11/1996 | | | | | Reda | | | U95 (wrt WISG) = ±2.0 W/m² | | 08/07/2012 | | | | |
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| 4 | 31198F3 | SRRL/2015-04 LW | 08/17/2015 | 08/17/2017 | K0=0.0;K1=0.2686;K2=0.9977;K3=-4.29;Kr=7.044e-4 ; U95 (wrt WISG) = ±2.36 W/m² ; N=3016 | | Eppley | PIR | Precision Infrared Radiometer | ARM/SGP | 3.37 (temp -30 to +50°C) | 04/11/1996 | | | | | Afshin M. Andreas | BORCAL-LW 2015-04 Certificates | | | | 08/28/2015 | K0=-5.9;K1=0.2683;K2=1.0119;K3=-4.38;Kr=7.044e-4 ; U95 (wrt WISG) = ±2.34 W/m² ; N=3033 | | Analysis w/o K0 forced to zero | |
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| 5 | 31198F3 | SRRL/2019-02 LW | 07/30/2019 | 07/30/2021 | K0=0.0;K1=0.26262;K2=0.9976;K3=-4.04;Kr=7.044e-4 ; U95 (wrt WISG) = ±2.7 W/m² ; N=4368 | | Eppley | PIR | Precision Infrared Radiometer | ARM/SGP | 3.37 (temp -30 to +50°C) | 04/11/1996 | | | [2019-02-LW_NREL-SRRL-BMS.pdf] | | Afshin M. Andreas | BORCAL-LW 2019-02 Certificates | | | | 09/16/2019 | K0=0.2;K1=0.26266;K2=0.9971;K3=-4.03;Kr=7.044e-4 ; U95 (wrt WISG) = ±2.7 W/m² ; N=4363 | | Analysis w/o K0 forced to zero | |
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| 6 | 31198F3 | SRRL/2023-02 LW | 07/18/2023 | 07/18/2025 | K1=0.27188;K2=0.9959;K3=-3.70;Kr=7.044e-4 ; U95 (wrt WISG) = ±2.5 W/m² ; N=1992 | | Eppley | PIR | Precision Infrared Radiometer | ARM/SGP | 3.37 (temp -30 to +50°C) | 04/11/1996 | | | [2023-02-LW_NREL-SRRL-BMS.pdf] | | Afshin M. Andreas | BORCAL-LW 2023-02 Certificates | | | | 10/25/2023 | | | | |
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