User Manual

TIC LEXION 500 Electric System
03/05 Lex-e-27a 27a-3
Description of function:
Yield measuring The yield measuring is based on flow rate measurement by the light
barrier (B59/B60) inside the grain elevator, depending on transverse and
longitudinal inclination of the machine. Based on these signals, the yield
meter module (A21) calculates the yield and displays this information in
terminal A30 via the CAN bus.
System calibration by entering the litre weight and by checking the values
by counterweighing a defined grain quantity constitute important
fundamentals for a precise calculation.
Important! All yield data is saved in the yield meter module (A21). It is
therefore recommended to save these data using the Claas
Diagnosis System CDS prior to replacing a defective module
and to transmit them to the new module.
Moisture measurement The measurements made by the moisture sensor (B61) are also
displayed by the yield meter module (A21) in terminal A30 via the CAN
bus, but are not used for calculating the gross weight. Terminal A30
requires these measured values for calculation only for stating the net
weight in order processing.
The yield meter module (A21) controls the measurement intervals
depending on the yield by using the sample slide (Y52). The time between
individual measurements is reduced linearly from approx. 2 min at 3 t/h to
approx. 15 s at 50 t/h.
In order to empty and clean the measuring chamber, the sample slide
(Y52) must be actuated once when turning off the threshing mechanism.
Returns measurement The returns measurement is based on flow rate measurement by the light
barrier (B75/B76) inside the grain elevator, depending on transverse and
longitudinal inclination of the machine. Based on these signals, the yield
meter module (A21) calculates the returns quantity and displays this
information in terminal A30 via the CAN bus.
Measuring the grain portion
in the returns (grainmeter)
The signals from the individual sensors (B141-1/141-2) are transmitted to
the performance monitor module (A13). The sensitivity is adjusted in the
CEBIS terminal (A30). In this process, the adjustment is linked to that of
the „Residual separation” sensors.
The sensors can be checked using the CEBIS terminal (A30), menu
"Adjustments – Separation – Sensor test".