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Keyence FR-LW20L

Long-range sensor main unit 2-wire standard model. . Series: Radar Level Sensor. Series code: FR series

MPN: FR-LW20L
Category: Radar Level Sensor

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What is the Keyence FR-LW20L?

Long-range sensor main unit 2-wire standard model. FR-LW20L. Series: Radar Level Sensor. Series code: FR series

Specifications

Model Name	Long-range sensor main unit 2-wire standard model
Model Code	FR-LW20L
Series Title	Radar Level Sensor
Series Code	FR series
Data Sheet URL	https://www.keyence.com/download/download/confirmation/?dlSeriesId=WS_157159&dlModelId=PM_28LW20L&dlSiteId=1&dlLanguageId=en-US&dlLangType=en-US
CAD URL	https://www.keyence.com/products/process/level/fr/downloads/?mode=cd&modelId=PM_28LW20L
Manuals URL	https://www.keyence.com/products/process/level/fr/downloads/?mode=ma&modelId=PM_28LW20L
Model	FR-LW20L
Type	2-wire standard model
Measuring range	Up to 15 m 49.2'*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
Material - Housing	PPS PC PA
Connection diameter	G1-1/2 (40A)
Output - No. of control outputs	1
Output - 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
Output - Analog output	4 to 20 mA (Response time: 3 s after internal value is confirmed [90% response])
Network compatibility	HART
Analog output accuracy - Resolution	1 mm 0.04"*4
Analog output accuracy - Zero accuracy	±0.1 mA (zero point = 4 mA)*4
Analog output accuracy - F.S. accuracy	±0.2 mA (full scale = 20 mA)*4
Power supply - Power voltage	18.3 to 35 VDC.
Power supply - 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)
Environmental resistance - Relative humidity	Up to 85% RH (no condensation)
Environmental resistance - Temperature of coupling used	-30 to +85°C -22 to 185°F (no freezing)
Environmental resistance - Vibration resistance	10 to 500 Hz; Power spectral density: 0.816 G2 X, Y and Z directions
Environmental resistance - 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

FR-LW20L: frequently asked questions

When can FR-LW20L be shipped?

FR-LW20L is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up FR-LW20L in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for FR-LW20L and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for FR-LW20L, subject to availability and destination.