Specifications

P a g e | 31
Each gas sensor should be calibrated with a zero gas and then a span gas. The order in which the gas sensors are calibrated is
not important but the zero point of each gas must be calibrated before the span of that gas can be calibrated. It is also
recommended that when one gas sensor is calibrated that all sensors should be calibrated for zero and span.
Below is a brief description of the calibration menu: