ETAS
Functional Description
ES430.1 - User’s Guide
35
5.4
Measurement Channel Characteristics
The characteristics of the measurement channels can be configured for signal
evaluation and the settings displayed in the calibration software.
5.4.1
IIR Filter Frequency
Select the cutoff frequency of the filter (in Hz) which is to be used to smooth the
measure signal. A low cutoff frequency results in a highly smoothed measure
result indicating the measurement average. With a high cutoff frequency, any
peaks which occur during measuring can be seen.
5.4.2
Range Min.
Specification of the lower limit of the selected measurement range.
5.4.3
Range Max.
Specification of the upper limit of the selected measurement range.
5.5
Module Characteristics
The operating parameters of the module can be displayed and also configured
to an extent in the calibration software.
5.5.1
Analog Output
Selection of the measure value at the analog output (see section 5.3.2
on page 34).
5.5.2
Curve
Shows the name of the curve which the module uses to calculate lambda.
5.5.3
Heating
Selection of the operating mode of the heater control of the lambda sensor
when only the lambda sensor is supplied with power or if the module is on
“Standby” (see section 5.7.1 on page 38).
5.5.4
IP Ref
Shows the value of the reference pump current.
TIP
The filter setting selected in the calibration software is used for all measure
values which are output (via XCP and via the analog output).
TIP
Lots of parameters have been preset to ensure safe operation of the sensor
and cannot be modified.