Digital Pressure Indicator DPI - Bedienungsanleitung
30 Friedrich Leutert GmbH & Co. KG
A
5.2.2 TDC Correction
In the display mode [TDC Correction] the position of the top dead center
can be determined which is necessary for the performance calculation.
The cylinder to be displayed is selected in the right window are.
A: Derived pressure curve, scaling in bar / ° crank angle shift; The dp/
da pressure line represents the rise / fall for 1 ° Change of crank
angle. This should not exceed 6 bar / ° to avoid mechanical strain on
the machine parts. This line also allows the position of the TDC to
be calculated. TDC is the position where the pressure does not rise
or fall (except engines with premature combustion).
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