Long-range sensor main unit 2-wire standard model FR-LW20

FR-LW20 - Long-range sensor main unit 2-wire standard model

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)

Manuals

CAD Data

360°view (3D PDF)

Software

  • CE Marking
  • CSA

Specifications

Model

FR-LW20

Type

2-wire standard model

Measuring range

Up to 20 m 65.6'*1

Display range

Up to 25 m 82.0'*1

Measurable dielectric constant of medium

2 or more*2

Resolution

1 mm 0.04"

Precision

Up to 0.1 m 0.3': ±10 mm 0.39";
0.1 to 10 m 0.3' to 32.8' : ±1 mm 0.04";
10 to 20 m 32.8' to 65.6': ±2 mm 0.08"
*3

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 -4°F)

Material

Tank interior

Lens: PTFE;
Internal seal: FKM;
Fastener: SUS304

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)
Common independent type 35 VDC or less, 50 mA max.
Residual voltage of 4.0 V or less (50 mA or less) N.O./N.C. switching

Analog output

4 to 20 mA (Response time: 3 s after internal value is confirmed [90% response])

Analog output accuracy

Resolution

1 mm 0.04"*4

Zero accuracy

±0.1 mA (zero point = 4 mA)*4

F.S. accuracy

±0.2 mA (full scale = 20 mA)*4

Power supply

Power voltage

18.3 to 35 VDC.

Power consumption

752.5 mW or less (including analog output; excluding load current)

Environmental resistance

Ambient temperature

-30 to +60°C -22 to 140°F (no freezing)

Relative humidity

Up to 85% RH (no condensation)

Temperature of coupling used

-30 to +85°C -22 to 185°F (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 32.45 oz

*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 due to the environment and measurement medium. The maximum measuring range is also reduced.
*2 Measurement may not be possible depending on the environment and shape of the target.
*3 Guaranteed value from verification performed at KEYENCE inspection facilities. Measurement errors may occur depending on the customer’s environment.
*4 Guaranteed value from verification performed at KEYENCE inspection facilities with a load resistance of 250 Ω. Measurement errors may occur depending on the customer’s environment.

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