| 摘要 |
<p>The method involves exploiting self-heating of measuring devices in such a manner that a heating device is switched off in defined intervals for a defined period by an opened gas valve (11) and a running blower (13) during active controlling. The heating device is assigned to a sensor (16), and a determined measured value of the sensor is utilized as a new control point for 1:1 gas/air controlling. Improper contamination of the sensor is inferred when the measured value is greater than an upper threshold or smaller than a lower threshold.</p> |
