BA053101-en
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Pos: 110 /Te chnis che D okum ent ati on/ Leis tun gsm esst ech nik/ POWE R DYN O/0 523 01 LPS 3 000 R10 0/B A/I nhal t: 052 3 Dre hza hlm odu l (S tand ard ) @ 30\mod_1363358323459_75.docx @ 1724326 @ @ 1
The RPM module is used to record the RPM and oil temperature (Plug-in card CAN DRZ).
The following RPM sensors/sources can be used:
The RPM signal is picked up at the ignition cable (spark plug or distributor ignition coil) with the
trigger tongs. The trigger tongs should be placed as close as possible to the spark plug and as far
as possible from the next ignition cable. The trigger tongs take up the high voltage signal
inductively which is conducted from the distributor to any random cylinder. The pulse is relayed
from the trigger tongs to the test box where it is converted to an RPM signal.
Attachment:
Position
on the interface box.
Piezo clamp is only used with diesel engines. The piezo clamp consists of a piezo element which
recognizes pressure differences at the lead-in and then converts them into electric pulses. It is
important that the piezo clamp which is used is suitable for only one diameter of the fuel line and
should only be placed at a straight section of the line at any cylinder (attach ground clamp on the
same injection line).
Attachment:
Position
or
on the interface box.
The alternator RPM is ascertained through the clamp W. The number of pulses per rotation at the
alternator (proportional to the crank shaft RPM) should be known or must be determined by an
external measuring device. This is necessary because individual vehicle models have different
transmissions between crank shaft and alternator. The RPM determination at the clamp W is only
used with diesel engine vehicles.
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