23/04/2019
Rev 3
44
III.5.2.Description of the graphic interface:
This graphic interface is composed of several elements:
The tachometer:
The tachometer reading may run from 0 to 9999 rpm. In addition, a graphic drawing allows the
trend in engine operating speed to be quickly visualized.
Only one of the sensors allowing the engine speed to be catched is needed for reading the
rotation speed.
The oil or engine temperature:
Use one of devices allowed. User can see value on this window.
Current opacity:
This value constantly shows the current opacity; it is expressed in two opacity units. One is given
per meter (m
-1
) and the other in percent.
The message box :
It directs the operator through the procedure. Messages displayed here are of two types:
Error messages. Every detected error or timeout results either in cancellation of the procedure or
invalidation of the free acceleration. In both cases, the message window contains the type of
error that caused the problem.
Instruction messages. During the procedure, several different phases follow one another in
sequence. The message window indicates to the operator what he must do and what the
opacimeter is doing. This allows easy understanding of the procedure and gives effective guidance
to the operator.
The «operating speed mode » key:
Allows the operating speed mode to be selected depending on the
