Operation
40 Rev. D7 Jul 2017 Marathon MM
Figure 19: Signal Slope defined by Decay
Signal slope defined by an average time. The average time is the amount of time the output
signal needs to reach 90% magnitude compared to a perpendicular drop. This parameter is set
by means of the programming command <AA>.
Figure 20: Averaging the Signal Slope
7.3.3 Advanced Peak Hold
This function searches the sensor signal for a local peak and writes this value to the output until a new
local peak is found. Before the algorithm restarts searching for a local peak, the object temperature has
to drop below a predefined threshold. If the object temperature raises above the held value which has
been written to the output so far, the output signal follows the object temperature again. If the algorithm
detects a local peak while the object temperature is currently below the predefined threshold the output
signal jumps to the new maximum temperature of this local peak. Once the actual temperature has
passed a peak above a certain magnitude, a new local peak is found. This magnitude is called hysteresis.
The threshold is set by means of the programming command <C>, for hysteresis use the command <XY>.