| 摘要 |
PURPOSE:To obtain an oxygen analyser wherein selection state output signals showing range changeover operation and a range selection state are respectively composed only of two levels. CONSTITUTION:An oxygen analyser consists of a zirconia type oxygen sensor 1 for measuring the concn. of oxygen, output means 9, 10, 11 outputting the measured concn. of oxygen to the outside, a display means 7 displaying the measured concn. of oxygen and an operation means 5 controlling the oxygen sensor, the output means and the display means. An output means has analogue signal output means 9-10 outputting two analogue signals of a nonlinear (logarithmic) range and a linear range and a selection state output means 12 showing the selection state of the nonlinear range and the linear range and an operation device is equipped with a changeover means automatically or manually changing over either one of the nonlinear range and the linear range with respect to the measured concn. of oxygen. |
