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RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LD2 | data sheet

09/2018 - Revision B | Page 16/20

Param. Default Min

Max

Name

Description

D00

01

00

09

Hold time

Index value to select an element of the hold time array defined with the parameters

A00…A09.

This value has no effect if the parameter use hold time potentiometer S0C

is enabled.

D01

07

00

09

Sensitivity

Index value to select an element of the sensitivity array defined with the parameters

A10…A19.

This value has no effect if the parameter use sensitivity potentiometer S0D

is enabled.

D02

03

00

10

Immunity

Value to change the immunity against interferences like vibrations.

00: minimum immunity

10: maximum immunity

Immunity increases the reaction time of the sensor.

D03

02

00

02

Direction to detect

Defines which direction is detected in the detection algorithm.

00: only forward (approaching)

01: only backward (receding)

02: both directions

D04

00

00

7F

Low speed limit

Can be used to define a low speed limit in bin for the detection algorithm to filter out

slow speeds.

00: inactive

01…7F: All speeds below this bin are filtered out

D05

00

00

7F

High speed limit

Can be used to define a high speed limit in bin for the detection algorithm to filter out

fast speeds.

00: inactive

01…7F: All speeds above this bin are filtered out

D06

00

00

7F

Speed range

threshold

Function to divide the spectrum in a high and a low speed range. Triggers the range

flag in the detection register R00.

00: inactive

01…7F: threshold in bin for the low and high speed range

D07

06

05

09

Micro detection

threshold

Function to set the threshold of the micro detection feature.

05: minimum threshold

09: maximum threshold

D08

02

00

0A

FFT filter width

Defines the ± width in bin that is filtered out around a specified filter in the FFT filter

array defined with the parameters A20…A27.

Param. Default Min

Max

Name

Description

A00…

A09

See table

below

0000

FFFF

Hold time array

10 elements wide hold time array in 100 ms, addressed by parameter D00.

0000: minimum hold time

0002: 2*100 ms " 0.2 s hold time

FFFF: maximum hold time

A10…

A19

See table

below

0000

00FF

Sensitivity array

10 elements wide sensitivity array in dB, addressed by parameter D01.

0000: maximum sensitivity

000A: 10 dB sensitivity

00FF: minimum sensitivity

A20…

A27

0

0000

007F

FFT filter array

FFT filter array in bin to define up to 8 different FFT filters with a ± width defined by

parameter D08.

0000: FFT filter inactive

0001…007F: FFT filter position in bin

Param.

A00

A01

A02

A03

A04

A05

A06

A07

A08

A08

Value [Hex]

0002

0005

000A

0014

0032

0064

00C8

0190

0320

0640

Value [s]

0.2

0.5

1

2

5

10

20

40

80

160

Param.

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

Value [Hex]

0022

001C

0016

0012

000E

000A

0006

0004

0002

0000

Value [dB]

34

28

22

18

14

10

6

4

2

0

Table 9: Class D 8-Bit detection parameters

Table 10: Class A 16-Bit array parameters

Table 11: Hold time array default values

Table 12: Sensitivity array default values