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VRS-20 Radar Level Sensor

Many of the issues traditionally associated with water level measurement have been solved in the VRS-20 pulsed K-band radar level sensor.

Versatile and simple to install, the VRS-20 has been developed by Valeport to work seamlessly with the TideMaster Tide Display/Logger and other third party data loggers using RS232, RS485 and SDI-12 communication. Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control. Accuracy and performance are unaffected by changes in water density and atmospheric conditions.

Support

VRS-20 Radar Level Sensor Datasheet
VRS-20 Radar Level Gauge Operating Manual
DataLog X2 Operating Manual

Software

DataLog X2
1.1.0.1315

Technical Specifications

Sensors

Non-contact technology removes the installation, corrosion & fouling issues of submerged sensors, while simplifying datum control. Accuracy and performance are unaffected by changes in water density and atmospheric conditions.

Specification

Minimum Range
0.8 m
Maximum Range
20 m
Beam Angle
±6°
Frequency
25 GHz
Accuracy
±10 mm
Precision
1 mm
Footprint
Radius at different ranges:
Range (m)
2
5
10
20
Radius (m)
0.21
0.53
1.05
2.10

Sampling

The VRS-20 offers averaged data output options for water level / tide measurements only. Wave measurement sampling is not available.

Raw Sampling Rate
8Hz
Averaging period
Selectable (10 to 360 seconds)
Output Parameters
Mean Range
Mean Height
Std. Deviation

Electrical

Range
9-28 V DC
Power
35mA @ 12V DC

Communications

RS232/485 and SDI12 fitted as standard with communications method defined by pin selection

RS232
Up to 200m cable, direct to serial port
RS485
Up to 1000m cable, addressable half duplex
SDI 12
Up to 100m cable

Housing & Mounting

• Fully sealed, injection moulded housing rated to IP67 (NEMA 6) with PTFE window • Integral stainless steel mounting bracket with tool free, 2 axis adjustment • Integrated spirit bubbles for easy levelling

Length
255mm
Width
130mm
Height
130mm (75mm without mount)
Weight
~2 kg

Ordering

0745001
VRS-20 Radar Level Sensor Supplied with:
• Mounting bracket
• 5m cable with junction box
• Software, Manual and transit carton

Shipping

Cardboard Carton
37 x 28 x 20cm ~ 4kg

Type Approval

The VRS20 radar sensor is fully compliant with: • ETSI EN 302 729-2 V1.1.2(2011-05) Electromagnetic compatibility and Radio spectrum Matters (ERM) Short Range Devices (SRD); Level Probing Radar (LPR) equipment operating in the frequency ranges: 6 GHz to 8,5 GHz, 24,05 GHz to 26,5 GHz, 57 GHz to 64 GHz and 75 GHz to 85 GHz. Please contact Valeport to discuss your requirements in more detail

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