Radar Level Sensor
FR series
Long-range sensor main unit 2-wire standard model FR-LW20
*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.
Specifications
Model | FR-LW20 | |||
Type | 2-wire standard model | |||
Measuring range | Up to 20 m *1 | |||
Display range | Up to 25 m *1 | |||
Measurable dielectric constant of medium | 2 or more *2 | |||
Resolution | 1 mm | |||
Precision | Up to 0.1 m: ±10 mm; | |||
Response time | 1 s, 4 s (default value), 10 s, 25 s | |||
Tank pressure | -0.1 to +1 MPa (-0.1 to +0.1 MPa below -20°C) | |||
Material | Tank interior | Lens: PTFE; | ||
Housing | PPS PC PA | |||
Connection diameter | G1-1/2 (40A) | |||
Output | No. of control outputs | 1 | ||
Control output/auxiliary output | Transistor output (NPN open collector) | |||
Analogue output | 4 to 20 mA (Response time: 3.0 s after internal value is confirmed [90% response]) | |||
Analogue output Precision | Resolution | 1 mm *4 | ||
Zero accuracy | ±0.1 mA (zero point = 4 mA) *4 | |||
Analogue output accuracy | F.S. accuracy | ±0.2 mA (full scale = 20 mA) *4 | ||
Power supply | Power voltage | 18.3 to 35 VDC. | ||
Current consumption | 752.5 mW or less (including analogue output; excluding load current) | |||
Environmental resistance | Ambient temperature | -30 to +60°C (no freezing) | ||
Relative humidity | Up to 85% RH (no condensation) | |||
Temperature of coupling used | -30 to +85°C (no freezing) | |||
Vibration resistance | 10 to 500 Hz; Power spectral density: 0.816 G2 X, Y and Z directions | |||
Shock resistance | 100 m/s2 (10 G), 16 ms pulses, 1000 times each in X, Y and Z directions | |||
Enclosure rating | IP67 (IEC60529), Enclosure Type 4X (NEMA250) | |||
Protection circuit | Reverse power connection protection, power supply surge protection, output short-circuit protection, output surge protection | |||
Weight | Approx. 920 g | |||
*1 Guaranteed value in water with the recommended installation. In still water, measurement is possible with water up to the edge of the lens. An undetectable area is present at short range owing to the environment and measurement medium. The maximum measuring range is also reduced. |