Hukseflux SR25-D2 Operation & User’s Manual

52, SR25-D2 manual v1603 52/73 8.2 Trouble shooting Table 8.2.1 Trouble shooting for SR25-D2 (continued on next page) General Inspect the instrument for any damage. Inspect if the humidity indicator is blue. Blue indicates dryness. The colour pink indicates it is humid: in…

35, Hukseflux SR25-D2 SR25-D2 manual v1603 35/73 Table 6.2.2 Modbus data model MODBUS DATA MODEL PRIMARY TABLES OBJECT TYPE TYPE OF Discrete input Single bit R Coil Single bit R/W Input register 16 bit word R Holding register 16 bit word R/W R = read onl…

62, SR25-D2 manual v1603 62/73 9.5 Appendix on standards for classification and calibration Both ISO and ASTM have standards on instrument classification and methods of calibration. The World Meteorological Organisation (WMO) has largely adopted the ISO classification system. …

12, SR25-D2 manual v1603 12/73 SR25-D2’s scientific name is pyranometer. A pyranometer measures the solar radiation received by a plane surface from a 180° field of view angle. This quantity, expressed in W/m 2 , is called “hemispherical” solar radiation. The solar radiation spect…

72, SR25-D2 manual v1603 72/73 9.13 EU declaration of conformity We, Hukseflux Thermal Sensors B.V. Delftechpark 31 2628 XJ Delft The Netherlands in accordance with the requirements of the following directive: 2014/30/EU The Electromagnetic Comp…

5, SR25-D2 manual v1603 5/73 List of symbols Quantities Symbol Unit Voltage output U V Sensitivity S V/(W/m 2 ) Temperature T °C Solar irradiance E W/m 2 Solar radiant exposure H W�…