Bosch 3.011 Instructions D'emploi page 30

As soon as the cursor is visible, you are in Input or Edit mode and are
able to move the cursor by means of the cursor keys in order to
change individual characters. The keys have the following meaning:
z z z
z z Move cursor one character to the left.
v v v v v
Move cursor one character to the right.
DEL Deletes the character to the left of the cursor and
the remaining characters are shifted to the left.
ESC Rejects the changes and displays the old content
again as a flashing display. The cursor disappears.
2.4 RPM measurement
The engine and ignition must always be switched off
before any work is carried out on the ignition system.
Before performing RPM measurement (engine-speed
measurement), always connect the B- clamp of the
battery connecting cable (B+/B-) to vehicle earth.
i Only ever connect one engine-speed sensor. The system
automatically selects the engine-speed sensor connected.
Set the number of pulses and cylinders in accordance with
the source used for picking up the engine speed (RPM).
2.4.1 The clip-on sensor
Measuring point
i Clip-on sensors are wearing parts.
! The points listed below must always be observed when
handling clip-on sensors, so that damage to the foil in the clip-
on sensor and therefore failures can be avoided and the
service life of the pickup can be extended.
- The clamping point must be perfectly smooth.
- The clip-on sensor must not be rotated after being clamped
with the securing clip.
- Only use a clip-on sensor that matches the diameter of the
injection tubing. If the diameter of the clip-on sensor is too
large, it is not possible to measure the engine speed (RPM).
If the diameter of the clip-on is too small, the pickup may be
irreparably damaged.
- Never use emery paper or other tools to clean the clip-on
sensor.
Connecting to the Emission Analysis Measuring Instrument:
- Connect the clip-on sensor connecting cable to plug-in socket
2 of the Emission Analysis Measuring Instrument (see
Description of the unit).
- Connect the Emission Analysis Measuring Instrument (plug-
in socket 1, see Description of the unit) to vehicle earth using
clamp B- of the battery connecting cable (B+/B-) in order to
achieve equipotential bonding during RPM measurement
(engine-speed measurement).
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Preparing the measuring point:
- The clearance between the clip-on sensor and the next bend in
the tubing must be at least 10 mm.
- Clean the clamping point in a straight section of the injection
tubing using sandpaper.
- The metal at the clamping point must be bare and must be
totally smooth (no dents etc.). Remove the insulation from
around insulated injection tubing.
Connecting to the vehicle:
- Determine the diameter of the injection tubing and select an
appropriate clip-on sensor. The standard clip-on sensor
KG6 (6 mm) is enclosed. If the car in question has injection
tubes with a different diameter, your can order appropriate
clip-on sensors (available as special accessories).
- Connect the clip-on sensor to the connecting cable (blade
receptacle).
- Connect the black clamp of the connecting cable to vehicle
earth.
! ! ! ! ! Only use a clip-on sensor that matches the diameter of the
injection tubing.
If the injection tubing is too thin, clamp the clip to the
next metal part available.
i The clip-on sensor must not be rotated around the
injection tubing after being clamped. The clip-on sensor
must be clamped onto the injection tubing in such a way
that it does not make contact with any other components
(wires, hoses, engine etc.).
- Clamp the clip-on sensor onto the cleaned section of
injection tubing as shown in the figure.
When making the connection, injection tubing level A must
flush with the the switching surface (level B) of the clip-on
sensor.
A
B