Name: FR-LEX20 Keyence Radar Level Sensor | Industify
Brand: Keyence
Price: 1.00 USD
Availability: InStock

Model

FR-LEX20

Type

2-wire explosion-proof 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, 10 s, 25 s, 4 s (default value)

Tank pressure

-0.1 to +1 MPa (-0.1 to +0.1 MPa below -20°C -4°F)

material

chloroprene, Lens: PTFE;Internal seal: FFKM;Fastener: SUS304, NBRCable glands: Nickel-plated brass, PPS PC PA Internal potting agent: Epoxy resin(when using an Isolated barrier) Barrier: PC(when using a Zener barrier) Barrier: PC(when using a Zener barrier with a flameproof enclosure) Explosion-proo

Connection diameter

G1-1/2 (40A)

Output

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

Analog output accuracy

±0.1 mA (zero point = 4 mA) *4, ±0.2 mA (full scale = 20 mA) *4, 1 mm 0.04"*4

Power supply

18.3 to 35 VDC.(when using an Isolated barrier) 24 VDC +25%/-10%(when using a Zener barrier) 20.1 to 28 VDC(when using a Zener barrier with a flameproof enclosure) 20.1 to 28 VDC, 752.5 mW or less (including analogue output; excluding load current)(when using an Isolated barrier) 3 W or less(when using a Zener barrier) 602 mW or less(when using a Zener barrier with a flameproof

Environmental resistance

-30 to +60°C -22 to 140°F (no freezing)(when using an Isolated barrier) Barrier: -30 to +60°C -22 to 140°F (no freezing)(when using a Zener barrier) Barrier: -30 to +60°C -22 to 140°F (no freezing)(wh, -30 to +85°C -22 to 185°F (no freezing), 10 to 500 Hz; Power spectral density: 0.816 G2 X, 100 m/s2 (10 G), 1000 times each in X, 16 ms pulses, Up to 85% RH (no condensation), Y and Z directions

IECEx

-30°C -22°F ≤ Ta ≤ 60°C 140°F / -30°C -22°F ≤ Tp ≤ 85°C 185°F(when using an Isolated barrier) ─(when using a Zener barrier) ─(when using a Zener barrier with a flameproof enclosure) Explosion-proof en, Ex ia IIC T4 Ga or Ex ia IIB T4 Ga Ex ia IIIC T135°C Da(when using an Isolated barrier) [Ex ia Ga] IIC or [Ex ia Ga] IIB [Ex ia Da] IIIC(when using a Zener barrier) [Ex ia Ga] IIB [Ex ia Da] IIIC(when, Ui: 35 VDC / Ii: 142.4 mA / Pi: 1000 mW / Li: 26.2 nH / Ci: 79 nF(when using an Isolated barrier) Um: 250 VRMS / Uo: 26.78 VDC / Io: 115.307 mA / Po: 772 mW / Lo (IIC): 0.2 mH / Co (IIC): 0.092 μF / L, Zone 0/20(when using an Isolated barrier) Do not install in a hazardous location (associated apparatus*5)(when using a Zener barrier) Do not install in a hazardous location (associated apparatus*5)(wh

ATEX and UKEX

-30°C -22°F ≤ Ta ≤ 60°C 140°F / -30°C -22°F ≤ Tp ≤ 85°C 185°F(when using an Isolated barrier) ─(when using a Zener barrier) ─(when using a Zener barrier with a flameproof enclosure) Explosion-proof en, II 1 G Ex ia IIC T4 Ga or II 1 G Ex ia IIB T4 Ga II 1 D Ex ia IIIC T135°C Da(when using an Isolated barrier) II (1) G [Ex ia Ga] IIC or II (1) G [Ex ia Ga] IIB II (1) D [Ex ia Da] IIIC(when using a Ze, Ui: 35 VDC / Ii: 142.4 mA / Pi: 1000 mW / Li: 26.2 nH / Ci: 79 nF(when using an Isolated barrier) Um: 250 VRMS / Uo: 26.78 VDC / Io: 115.307 mA / Po: 772 mW / Lo (IIC): 0.2 mH / Co (IIC): 0.092 μF / L, Zone 0/20(when using an Isolated barrier) Do not install in a hazardous location (associated apparatus*5)(when using a Zener barrier) Do not install in a hazardous location (associated apparatus*5)(wh

Type Approval of Electrical Equipment for Use in Explosive Atmospheres

-30°C -22°F ≤ Ta ≤ 60°C 140°F / -30°C -22°F ≤ Tp ≤ 85°C 185°F(when using an Isolated barrier) ─(when using a Zener barrier) ─(when using a Zener barrier with a flameproof enclosure) Explosion-proof en, Ex ia IIC T4 Ga or Ex ia IIB T4 Ga Ex ia IIIC T135°C Da(when using an Isolated barrier) [Ex ia Ga] IIC or [Ex ia Ga] IIB [Ex ia Da] IIIC(when using a Zener barrier) [Ex ia Ga] IIB [Ex ia Da] IIIC(when, Ui: 35 VDC / Ii: 142.4 mA / Pi: 1000 mW / Li: 26.2 nH / Ci: 79 nF(when using an Isolated barrier) Um: 250 VRMS / Uo: 26.78 VDC / Io: 115.307 mA / Po: 772 mW / Lo (IIC): 0.2 mH / Co (IIC): 0.092 μF / L, Zone 0/20(when using an Isolated barrier) Do not install in a hazardous location (associated apparatus*5)(when using a Zener barrier) Do not install in a hazardous location (associated apparatus*5)(wh

NRTL/ACO

-30°C -22°F ≤ Ta ≤ 60°C 140°F / -30°C -22°F ≤ Tp ≤ 85°C 185°F(when using an Isolated barrier) ─(when using a Zener barrier) ─(when using a Zener barrier with a flameproof enclosure) Explosion-proof en, AEx db [ia Ga] IIB T4 Gb/Zone 21, AEx ia IIB T4 Ga/Zone 20, AEx ia IIC T4 Ga/Zone 20, AEx ia IIIC T135°C Da/Class I, AEx tb [ia Da] IIIC T135°C Db/Class I, B, C, Class I, D, D or Class I, D/Class II, Division 1, Division 1 or Class I, Division 1(when using a Zener barrier with a flameproof enclosure) Class I, Division 1(when using a Zener barrier) [AEx ia Ga] IIB/[AEx ia Da] IIIC Intrinsically safe circuit for Class I, Division 1(when using an Isolated barrier) [AEx ia Ga] IIC or [AEx ia Ga] IIB/[AEx ia Da] IIIC Intrinsically safe circuit for Class I, F, G, G/Class III, Groups A, Groups C, Groups E, T135°C /Class III, T135°C/Class III, T4/Class II, Ui: 35 VDC / Ii: 142.4 mA / Pi: 1000 mW / Li: 26.2 nH / Ci: 79 nF(when using an Isolated barrier) Um: 250 VRMS / Uo: 26.78 VDC / Io: 115.307 mA / Po: 772 mW / Lo (IIC): 0.2 mH / Co (IIC): 0.092 μF / L, Zone 0, Zone 0/20 Division 1(when using an Isolated barrier) Do not install in a hazardous location (associated apparatus*5)(when using a Zener barrier) Do not install in a hazardous location (associated appa, Zone 1

enclosure rating

Enclosure Type 4X (NEMA250)(when using an Isolated barrier) Barrier: Not specified(when using a Zener barrier) Barrier: Not specified(when using a Zener barrier with a flameproof enclosure) Explosion-, IP67 (IEC60529)

Protection Circuit

power supply surge protection, Reverse power connection protection

Weight

Approx. 920 g 32.45 oz(when using an Isolated barrier) Barrier: Approx. 320 g 11.28 oz(when using a Zener barrier) Barrier: Approx. 100 g 3.52 oz(when using a Zener barrier with a flameproof enclosure

Brand

Keyence

Description

Keyence FR-LEX20 Radar Level Sensor

The Keyence FR-LEX20 Radar Level Sensor offers accurate measurements with a measuring range of up to 20 meters, providing crucial data for monitoring various applications. With a response time as low as 1 second, this sensor ensures timely information for efficient decision-making. The explosion-proof design enhances safety in hazardous environments, offering peace of mind during operation.

Equipped with high precision and resistance to environmental factors, the FR-LEX20 sensor delivers reliable performance in challenging conditions. The IP67 rating and Enclosure Type 4X provide durability and protection against dust and water, ensuring long-term functionality. The sensor’s reverse power connection protection and power supply surge protection further enhance its reliability.

Accurate measurements up to 20 meters
1-second response time for timely data
Explosion-proof design for safety in hazardous areas
Precision and environmental resistance for reliable performance
IP67 rating and Enclosure Type 4X for durability and protection
Reverse power connection protection and surge protection for enhanced reliability