Flow velocity SV

The SV radar sensor is a measurement device for the contact-free determination of the flow velocity of open rivers and channels. The sensor detects the surface flow velocity by the principle of the Doppler frequency shift.

Sensor database ID	115
Name	SV
Measured Quantities	Flow velocity
Manufacturer	Sommer Messtechnik

Measurement range

	Unit	Min	Max
Flow velocity	m/s	0.1	15

Analog setup

Wiring

ANALOG settings Signal class Current Analog inputs   AIN signal type 4...20 mA Warm-up time 0.1 sec ADC - conv. Rate 62 Hz ADC filter Off Sensor supply   SW2 Off 12 V / 14 V Always on 5 V Off 2.5 V Off External sensor supply Not used Additional measurement settings   12 V / 14 V output voltage 12 Volt

Measurement table

Function*	Identifier	Unit	Decimals	Scale	Offset	S-TYP	S-NUM	S-MEA	S-ADD
Actual	Velocity	m/s	2	0.3125**	-1.25**	AIN		AN 1
*options: off, actual, meanval, minimum, maximum, sum, intens., diff.; see MRL manual for details **for a measurement range of 0 ... 5 m/s (can be set in SV setup)

SBP (RS-485) setup

Measurement table

Function*	Identifier	Unit	Decimals	Scale	Offset	S-TYP	S-NUM	S-MEA	S-ADD
Actual	Self-check	-	As S		0	SBP	1	1
Actual	Velocity	m/s	As S		0	SBP	1.	3
Actual	Quality (SNR)	-	As S		0	SBP	1	4
	...**
*options: off, actual, meanval, minimum, maximum, sum, intens., diff.; see MRL manual for details **Additional variables may be added according to the SV manual

SDI-12 setup

Measurement table

Function*	Identifier	Unit	Decimals	Scale	Offset	S-TYP	S-NUM	S-MEA	S-ADD
Actual	Self-check	-	As S		0	SDI12	0	1
Actual	Velocity	m/s	As S		0	SDI12	0	3
Actual	Quality (SNR)	-	As S		0	SDI12	0	4
	...**
*options: off, actual, meanval, minimum, maximum, sum, intens., diff.; see MRL manual for details **Additional variables may be added according to the SV manual