SuperFlow AutoDyn, Руководство оператора

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System Operation
Volume 1, 6/16/05
Section 6 - Page 21
Tach wire pickup, P/N 1200A-2188 (with cable assy. 1200A-2448)
This pickup may be directly connected to any pulsing
signal source with an amplitude of 5 to 16 volts DC.
For instance, if the vehicle has an ignition module
with a tachometer output tap, you can connect one
lead of this pickup to the signal source and the other
lead to chassis ground.
When using this method, the pulse per revolution
factor is adjusted via the Pul/Rv (old SparkP) channel
83 in the WinDyn specifications. For Pul/Rv tach
output factors, you may need to consult the ignition
module manufacturer's documentation. In the event
no documentation is available, simply adjust the
factor until the WinDyn engine speed display matches the vehicle's tachometer reading (on some
ignitions, the tach may need to be disconnected to obtain a signal for WinDyn).
In older systems this pickup attaches to the spark engine speed, channel
11, connector on the interconnect panel. However, the signal is actually
routed to frequency channel 9 in WinDyn.
6.9.2 Optical Sensor
IFR Optical Tach, P/N 1200A-0642-1 (with cable assembly 1200A-2448-1)
This pickup was originally designed by Caterpillar Corporation
for use in obtaining engine speed on diesel engines, which do
not have ignition systems. This pickup can be used to measure
the RPM of any rotating object on the test vehicle. It does this by
reading its reflected beam from a piece of reflective tape you
attach to the rotating object. It works quite well, as long as a
rotating object associated with engine speed is available on the
engine or drivetrain. This method of obtaining engine speed is
often preferred, since it is generally not susceptible to noise
interference.
In older systems this pickup attaches to the spark engine speed, channel
11, connector on the interconnect panel. However, the signal is actually
routed to frequency channel 9 in WinDyn.
• This cable is for use in the Spark Engine Speed channel 11 connector on the
interconnect panel. It uses the same Optical Tachometer sensor that is used for
measuring wheel revolutions. It is useful for test scenarios where two optical tach
signals are required, one for engine speed, and another one for wheel slip or
drivetrain slippage.