MoTeC PLM - Manual (Page 14)

14 PLM Setup Software
select Options | Communications Port from the main menu. The PC must be
connected to the powered PLM using the serial port specified.
When a configuration file is sent to the PLM, any changes are automatically
saved to the current configuration file on the PC.
Changing Configurations
Once an existing configuration file has been opened or retrieved, or a new
configuration has been created, the configuration may be modified by choosing
the options under the Setup menu.
Setup | Sensor
Sensor:
The sensor type used with the PLM (NTK, Bosch LSU 4 or Bosch LSU
4.2) must be specified before a configuration can be sent to a PLM. It is
important to select the correct sensor type to prevent damage to the
sensor and ensure correct lambda measurements.
Calibration:
There are several options available for choosing the calibration method of
the sensor being used.
The default option, ‘Use measured calibration value’ allows the PLM to
determine the factory sensor calibration and can be used in most cases.
If the calibration value of the sensor is known then it can be entered by
selecting the option ‘Enter calibration value’. This value is engraved on
sensors supplied by MoTeC as an equivalent resistor calibration value.
Either of these two options will be sufficient in nearly all situations. The
more advanced calibration methods (‘Calculate from O2 concentration’
and ‘Enter calibration table’) are described in the section Sensor
Calibration.
Heater Control:
This parameter allows the heater voltage to be set when using an NTK
sensor. For most situations this can be left at the default value of 10.5
volts. A value of 12 – 12.5 volts will give better results during cold start or
warm-up calibrations or during extensive periods of overrun fuel cut where
the sensor may become too cold for accurate measurement. Running the