Coupling a transducer to the vibrating displacement. The presence of a rechargeable internal battery, the weight and the small of accurately maintaining the amplitude level set, regardless of the load associated with the mass of the transducer (within the limits stated in the technical specifications).
The mechanical vibrations generated by the calibrator are very stable over the time, with a typical drif of 1% per year. In order to maintain the accuracy, we recommend the annual calibration at DELTA OHM metrological laboratories.
The temperature probe TP32MTT.03 is equipped with seven Pt100 1/3 DIN sensors for the measurement of temperature at depth: +5 cm, 0, ‐5 cm, ‐10 cm, ‐20 cm, ‐50 cm, ‐1 m with respect to the soil level, according to the indications of the World Meteoro‐ logical Organization (WMO). The probe TP32MTT.03.1 is equipped with six Pt100 1/3 DIN sensors for the measure‐ ment of temperature at depth: +5 cm, 0, ‐5 cm, ‐10 cm, ‐20 cm, ‐50 cm with respect to the soil level.
HD 9408T BARO, HD 9408TR BARO and HD 9908T BARO are analog output electronic barometers. They use a piezoresistive sensor element which gives extremely accurate and stable measurement of the atmospheric pressure and assures excellent repeatability, low hysteresis and very good temperature stability.
The LP Silicon-PYRA 04. pyranometer measures the global solar radiation (W/ m2) by using a silicon photodiode (350nm-1100nm). The special geometry and the diffuser allow to have a pyranometer field of view of 180 degrees according to cosine law.