I180EN - 1021
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PARATRONIC - Rue des Genêts - Zone Industrielle - 01600 REYRIEUX - FRANCE
Tel.: +33 (0)4 74 00 12 70 – Fax: +33 (0)4 74 00 02 42 - E-Mail: info@paratronic.fr - Web:
http://www.paratronic.com
NRV 485 RADAR SENSOR
1 SPECIFICATIONS
Mechanical specifications:
Housing material
ABS
Dimensions
121 x 121 x 45mm
Weight
450g
Cable
4 wires of cross-section 0.35mm²
Length 2m (other lengths on request)
Electrical specifications:
Technology
Pulse radar
Measurement frequency
24.05 to 26.5 GHz
Repeat frequency
3.57 MHz
Pulse duration
1.2 ns
Radiated power
<20 dBm
Antenna aperture at -3dB
+/-4° / +/-6° (8°/12°)
Power supply voltage
9 to 20Vdc
Consumption
15 mA in operation
100 µA on standby
Output signal
Jbus slave on RS485
Clearance (*)
NRV485-3: 0.3 to 3m - NRV485-8: 0.3 to 8m - NRV485-12: 0.3 to
12m
Fault signal
Negative distance (on 16 bits with signature)
Smoothing depth
1, 4, or 16s
Minimum heating time
Case where sensitivity is set to 0: 2s (+ smoothing
depth)
Maximum heating time
Case where sensitivity is set to 7: 9s (+ smoothing
depth)
Resolution
1mm
Precision (**)
Clearance of 30cm to 50cm: +/-20mm
Clearance of 50cm to 12m: +/-5mm (EMC +/-10mm)
(*) Distance between the water surface and the flat section at the front of the radar.
(**) With an echo on a planar metal surface and a clean radome.
Environment, standards:
Protection rating
IP68, 100 days under 1 metre of water
Fire rating
UL94-V2
Storage temperature
-20 to 60°C
Operating temperature
-20 to 60°C
Altitude
0 to 2000 m
CE Mark:
EN 302729-1/2(2011-05) - EN 60950-1(2006-09)+ Av. A1, A2, A11,
A12
EN 61326-1 (2013-05) - EN 62479 (2010-11) - EN 50581 (2013-01)
Fast transients
Level 4
Lightning protection, wave 1.2/50 - 8/20
1KV
As per ISO 4373 standard
Physical principle of the device: radar echo-location
Maximum variation rate:
not applicable
Response time (with 1s smoothing): 2s
Performance class (clearance > 50cm): 1
Temperature class: 2
Relative humidity class: 1
IP rating: IP68
Drinking water compatibility: not applicable
Explosive environment compatibility: no
