How is the offset of a 9060 Zirconia Sensor determined?
A sensor’s offset is determined by running the probe with ambient air on both sides of the cell. With the same oxygen level on both sides of the cell with the sensor heated to 720C the theoretical offset should be zero. The mV offset value measured with 20.95% oxygen on both sides of the cell is the value that should be programmed into the analyser. Each probe has the offset value (and impedance) on the sticker near the serial number.
