Well-attuned to the demands of both domestic and global market, we manufacture, supply and export premium quality Thermo Hygrograph. Our team of skilled professionals carefully designs this instrument, therefore, it precisely measures and records atmospheric temperature & humidity. Assisted by skilled professionals, we possess the expertise to design products in adherence to international quality standards. This Thermo Hygrograph is highly acknowledged and demanded by the customers owing to following attributes:
The Thermo-hygrograph uses a simple mechanisms for measuring both temperature & humidity. Measurements are recorded onto a rotating paper chart. A rotating drum is driven by a precision electronic Quartz clock. The chart paper used on the drum recorder has two separate sections, an upper section for temperature and a lower section for humidity. Both sections have the zero or low-scale at the bottom edge of the scale and the full-scale or high-scale at the upper edge. A curved, bi-metal element bends and straightens as the air temperature around it changes. The bending of the curved element moves the temperature pen arm and results in the recording on the chart paper. Relative humidity measurements are made with a human hair sensing element. Changes in the moisture content of the air causes the length of the hair to change. The hair is attached firmly to the frame of the thermo-hygrograph so that the expansion and contraction of the hair can be translated into the the movement of the pen arm.