Facom X.730B Guía De Instrucciones página 9

PREFACE : After connection to the battery, the strobotester is automatically set for the measu-
rement of RPM, Advance, Voltage, 1 spark per 2 revs (distributor ignition system), 4-cylinder,
4-stroke engines.
To change the default settings, proceed as follows :
DWELL SELECTION : By pressing
other readings can be selected by keeping the
1 appears. Then press key to select measurements in degrees (GG), in percentage (PP) or
return to milliseconds (SS). After selection, press
or twice to proceed with the measurements.
SELECTION OF NUMBER OF CYLINDERS : Allows to carry out measurements of injection time
or ignition coil charge relevant to the cylinder under test.
In case of engines that do not have 4 cylinders, after the fi rst pressing of the key
shown in fi g. 2 will appear. Select the number of cylinders through
to confi rm.
The strobotester is now ready for measurements.
SELECTION OF NUMBER OF SPARKS PER REV. : The unit is set for one spark per two revs
(4-stroke engines with distributor and coil per plug systems) as shown in fi g. 3. Press
to select one spark per rev (2 or 4 stroke engines with DIS systems). Press
shift the line, appearing on the left side of the display, beside the symbol of two sparks per rev
(2-cylinder and 2-stroke engines with DIS system). The unit is now ready for measurements. Press
or key to return to one spark per two revs.
STROBOSCOPIC MEASUREMENT OF THE RPM NUMBER : With a piece of chalk trace a
white mark on the rotating body. Set the unit by pressing
pressed for a while. Release the
(see fi g 4). The strobotester will blink automatically. Increase the RPM number on the display up
to a maximum of 6000 (or decrease it if necessary) through the
the fl ash frequency allows to stop the (single) image of the white mark (fi g. 5A).
To return to normal reading press the
7
MEASUREMENTS SETUP
key, the unit sets for measurements in milliseconds. The
key pressed until the display shown in fi g.
key once to choose the number of cylinders
key then
key while keeping
key.
EN
, the display
key. Press once key
key
key again to
key and keep them
key pressed, until 60 appears
key. Read the RPM when