Operating - ICM ICM Operation When the vehicle ignition is first switched on all segments of both displays will come on momentarily as it goes through its own test procedure. It will then display the same function that was selected last time it was switched off. All internal accumulated data and programmed data is stored in the instrument memory whether it is connected to a power supply or not. Please refer to the diagram on the previous page when reading the following instructions. 1/ Engine speed Press this button for the engine speed to be displayed in the LH window. The chevron in the bottom of the window will indicate that this function has been selected.   Engine overspeed warning Should the maximum recommended engine speed be exceeded, (normally 4,000 rpm) the LH display will flash with the engine speed and an audible buzzer will sound.   Air conditioning cut-out The ICM provides an output which is connected to the air conditioning system and the light load advance system on the fuel injection pump. This cuts the air conditioning out at engine speeds below 1700 rpm and activates the light load advance to reduce exhaust emmisions. 2/ PTO speed Press this button for the PTO speed to be displayed in the LH window. The small chevron in the bottom of the display window will indicate that this function has been selected.   PTO overspeed warning Should the maximum recommended PTO speed be exceeded, (normally 575 rpm) the LH display will flash with the PTO speed and an audible buzzer will sound. 3/ Total area covered Press this button for accumulated area to be displayed in the LH window. The small chevron in the bottom of the display window will indicate that this function has been selected. The instrument is normally connected to the sprayer or spreader master on/off control so that the area will only accumulate when is in work. When the sprayer/spreader is off the small chevron indicator in the bottom of the display will flash. When switched on it is steady to show the instrument is recording. The automatic cut-out can also be over-ridden manually (see below). 4/ Part area This operates the same as total area. The two area meters allow one to be used to check the area covered for each tank load or field whilst the other can be used to check the area covered over a day or any other period of time. Either area meter can be reset to zero at any time. (see below) 5/ Distance travelled This operates exactly the same as total & part area and will measure distance covered in miles or Km 6/ Hours worked Press this button to display the accumulated time (in hours) worked in the LH display window. It can be reset to zero whenever required (see below). < 12 >