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Technical reference page: 30

RDS SAM 20 - Speed sensor calibration chart

Tyre size

Rolling
Radius
mm

2D/3D/4D
SAM 20
Shaft sensor

2D
SAM 20
Wheel magnets

31x15.5x15 STG LP

360

3.1

7.4

12.4x16 Intermediate

443

3.9

9.1

6.00x36 row crop

577

5.1

11.9

7.2x36 row crop

592

5.2

12.2

38x20x16 LP

436

3.8

9.0

Once a calibration figure has been established the settings for the dip-switches can be read off the chart below.
E.G. 1.0 = 0000100000 and 3.1 = 0001100011 Set the switches as per the diagram at the bottom right