Radar Level Sensor

FR series

Catalogues View Catalogue

Specs Radar Level Sensor FR series

Sensor Unit

Model

FR-S01

FR-SH01

FR-LM20L

FR-LP20L

FR-LS20L

FR-LW20L

Image

Type

Short range Standard model

Short range Compact liquid chemical model

Long range Standard model

Long range Liquid chemical model

Long range Sanitary model

2-wire standard model

Measuring range

Up to 1.5 m *1

Up to 15 m *1

Up to 15 m *7

Display range

Up to 2 m *1

Up to 25 m *1

Up to 25 m *7

Measurable dielectric constant of medium

2 or higher *2

2 or more *8

Resolution

1 mm

Precision

Up to 0.1 m: ±20 mm;
0.1 to 0.3 m: ±5 mm;
0.3 to 1.5 m: ±1 mm
*3

Up to 0.1 m: ±10 mm;
0.1 to 10 m: ±1 mm;
10 to 20 m: ±2 mm
*3

Up to 0.1 m: ±10 mm;
0.1 to 10 m: ±1 mm;
10 to 20 m: ±2 mm
*9

Response time

0.4 s, 1.5 s, 4 s (default value), 10 s

1 s, 4 s (default value), 10 s, 25 s

Tank pressure

-0.1 to +1 MPa

-0.1 to +0.1 MPa

-0.1 to +1 MPa

-0.1 to +0.1 MPa

-0.1 to +1 MPa

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

Material

Tank interior

Lens: PTFE
Internal packing: FKM
Joint: SUS304

Lens: PTFE
Internal packing: FKM
Joint: PPS

Lens: PTFE
Internal packing: FKM
Joint: SUS304

Lens: PTFE
Internal packing: FKM
Joint: PPS

Lens: PTFE
Ferrule Internal Packing: EPDM (when using OP-88920)
Ferrule: SUS316L (when using OP-88888/88889)

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

Housing

PBT PAR

PPS PPSU

PPS PET PAR

PPS PPSU

SUS304

PPS PC PA

Connection diameter

G3/4 (20 A)

G1-1/2 (40 A)

2S ferrule (when using the OP-88888/88889)

G1-1/2 (40A)

Output

No. of control outputs

Maximum 5

─

Maximum 5

1

Control output/auxiliary output

NPN/PNP open collector (switching type)
30 VDC or less, max 50 mA for each
Residual voltage of 1.4 V or less (50 mA or less)
N.O./N.C. Switching type
IO2 used in combination with IO-Link
IO5 used in combination with external input

NPN/PNP open collector (switching type)
30 VDC or less, max 50 mA for each
Residual voltage of 1.4 V or less (50 mA or less)
N.O./N.C. Switching type
IO2 used in combination with IO-Link

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

Analogue output

0–20 mA/4–20 mA maximum load resistance 260 Ω
(Response time: 0.2 s after judgment output is confirmed [90% response])

0–20 mA/4–20 mA maximum load resistance 260 Ω
(Response time: 0.2 s after judgment output is confirmed [90% response])

4 to 20 mA (Response time: 3.0 s after internal value is confirmed [90% response])

External input

Short-circuit current: 1.5 mA or less
Input time 500 ms or more

─

Network compatibility

IO-Link v1.1/COM2

─

IO-Link v1.1/COM2

Analogue output Precision

Resolution

1 mm *4

1 mm *4

1 mm *10

Zero accuracy

±0.1 mA (zero point = 4 mA) *4

±0.1 mA (zero point = 4 mA) *4

±0.1 mA (zero point = 4 mA) *10

Analogue output accuracy

F.S. accuracy

±0.2 mA (full-scale = 20 mA) *4

±0.2 mA (full-scale = 20 mA) *4

±0.2 mA (full scale = 20 mA) *10

Power supply

Power voltage

24 VDC + 25%/–20%
Including ripple Class 2 or LPS

24 VDC + 25%/–20%
Including ripple Class 2 or LPS

18.3 to 35 VDC.

Current consumption

80 mA or less (Excluding Load Current)

106 mA or less (Excluding Load Current)

98 mA or less (Excluding Load Current)

106 mA or less (Excluding Load Current)

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

Environmental resistance

Ambient temperature

−20°C to +55°C *5 *6
(no freezing)

–10 to +70°C *5 *6
(No freezing)

Display part when combined and separated: –20 to +50°C (no freezing) *5 *6
Head when separated: –20 to +60°C (no freezing) *5 *6

Display part when combined and separated: –10 to +50°C (no freezing) *5 *6
Head when separated: –10 to +60°C (no freezing) *5 *6

−20°C to +60°C *5 *6
(no freezing)

-30 to +60°C (no freezing)

Relative humidity

Up to 85% RH (no condensation)

Temperature of coupling used

–20 to +85°C (no freezing) *5 *6

–10 to +85°C (no freezing) *5 *6

–20 to +85°C (no freezing) *5 *6

–10 to +85°C (no freezing) *5 *6

–20 to +100°C (no freezing) *5 *6

-30 to +85°C (no freezing)

Vibration resistance

10–500 Hz Power spectral density: 0.816 G2; X, Y and Z directions

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 for X, Y and Z directions

100 m/s2 (10 G), 16 ms pulses, 1000 times each in X, Y and Z directions

Enclosure rating

IP67 (IEC60529)

IP67 (IEC60529), Enclosure Type 4X (NEMA250)

IP67 (IEC60529),
IP69K (ISO20653)

IP67 (IEC60529), Enclosure Type 4X (NEMA250)

Protection circuit

Protection against reverse power connection, power supply surges, output overcurrent protection, and output surges

Reverse power connection protection, power supply surge protection, output short-circuit protection, output surge protection

Weight

Approx. 170 g

Approx. 140 g

Approx. 600 g

Approx. 400 g

Approx. 900 g

Approx. 920 g

*1 Guaranteed value in water with the recommended installation. Static water can be measured up to the edge of the lens. An undetectable area on the short-range side is created owing to the environment and measurement medium. The maximum measuring distance is also shortened.
*2 Measurement may not be possible depending on the shape and environment of the target.
*3 This is the guaranteed value from verification performed at KEYENCE inspection facilities. Measurement errors may occur depending on the customer’s environment.
*4 This is the 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.
*5 Details of the operating temperature range of each model are shown below. The FR-S01 and FR-LM20/LP20 can be used up to an ambient temperature setpoint of 10°C by selecting “Off when not in Operation” under “Screen Brightness.”
*6 When performing SIP with FR-S01/FR-LM20/LP20/LS20, be sure to turn off the power and perform at an ambient temperature of 40°C or less and an internal temperature of 130°C or less for up to one hour. In addition, always install the KEYENCE optional ferrule mounting bracket and internal gasket.
*7 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.
*8 Measurement may not be possible depending on the environment and shape of the target.
*9 Guaranteed value from verification performed at KEYENCE inspection facilities. Measurement errors may occur depending on the customer’s environment.
*10 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.

Back to top

Sensor Unit

Model

FR-LEX20L

Image

Type

2-wire explosion-proof model

Measuring range

Up to 15 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;
0.1 to 10 m: ±1 mm;
10 to 20 m: ±2 mm
*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)

Material

Tank interior

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

Housing

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) Flameproof enclosure: Aluminium die casting, NBR
Cable glands: Nickel-plated brass, chloroprene

Connection diameter

G1-1/2 (40A)

Output

No. of control outputs

─

Control output/auxiliary output

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.
(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

Current consumption

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 enclosure) 602 mW or less

Environmental resistance

Ambient temperature

-30 to +60°C (no freezing)
(when using an Isolated barrier) Barrier: -30 to +60°C (no freezing)
(when using a Zener barrier) Barrier: -30 to +60°C (no freezing)
(when using a Zener barrier with a flameproof enclosure) Barrier: -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

IECEx

Explosion-proof performance

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 using a Zener barrier with a flameproof enclosure) Ex db [ia Ga] IIB T4 Gb Ex tb [ia Da] IIIC T135°C Db

Zone

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)
(when using a Zener barrier with a flameproof enclosure) Zone 1/21

Electrical ratings

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 / Lo (IIB): 0.2 mH / Co (IIB): 0.72 μF
(when using a Zener barrier) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF
(when using a Zener barrier with a flameproof enclosure) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF

Temperature

-30°C ≤ Ta ≤ 60°C / -30°C ≤ Tp ≤ 85°C
(when using an Isolated barrier) ─
(when using a Zener barrier) ─
(when using a Zener barrier with a flameproof enclosure) Flameproof enclosure: -30°C ≤ Ta ≤ 60°C

ATEX and UKEX

Explosion-proof performance

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 Zener barrier) II (1) G [Ex ia Ga] IIB II (1) D [Ex ia Da] IIIC
(when using a Zener barrier with a flameproof enclosure) II 2 (1) G Ex db [ia Ga] IIB T4 Gb II 2 (1) D Ex tb [ia Da] IIIC T135°C Db

Zone

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)
(when using a Zener barrier with a flameproof enclosure) Zone 1/21

Electrical ratings

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 / Lo (IIB): 0.2 mH / Co (IIB): 0.72 μF
(when using a Zener barrier) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF
(when using a Zener barrier with a flameproof enclosure) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF

Temperature

-30°C ≤ Ta ≤ 60°C / -30°C ≤ Tp ≤ 85°C
(when using an Isolated barrier) ─
(when using a Zener barrier) ─
(when using a Zener barrier with a flameproof enclosure) Flameproof enclosure: -30°C ≤ Ta ≤ 60°C

Type Approval of Electrical Equipment for Use in Explosive Atmospheres

Explosion-proof performance

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 using a Zener barrier with a flameproof enclosure) Ex db [ia Ga] IIB T4 Gb Ex tb [ia Da] IIIC T135°C Db

Zone

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)
(when using a Zener barrier with a flameproof enclosure) Zone 1/21

Electrical ratings

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 / Lo (IIB): 0.2 mH / Co (IIB): 0.72 μF
(when using a Zener barrier) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF
(when using a Zener barrier with a flameproof enclosure) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF

Temperature

-30°C ≤ Ta ≤ 60°C / -30°C ≤ Tp ≤ 85°C
(when using an Isolated barrier) ─
(when using a Zener barrier) ─
(when using a Zener barrier with a flameproof enclosure) Flameproof enclosure: -30°C ≤ Ta ≤ 60°C

NRTL/ACO

Explosion-proof performance

Class I, Zone 0, AEx ia IIC T4 Ga/Zone 20, AEx ia IIIC T135°C Da/Class I, Division 1, Groups A, B, C, D, T4/Class II, Division 1, Groups E, F, G, T135°C/Class III, Division 1 or Class I, Zone 0, AEx ia IIB T4 Ga/Zone 20, AEx ia IIIC T135°C Da/Class I, Division 1, Groups C, D, T4/Class II, Division 1, Groups E, F, G, T135°C/Class III, 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, Division 1, Groups A, B, C, D or Class I, Division 1, Groups C, D/Class II, Division 1, Groups E, F, G/Class III, Division 1
(when using a Zener barrier) [AEx ia Ga] IIB/[AEx ia Da] IIIC Intrinsically safe circuit for Class I, Division 1, Groups C, D/Class II, Division 1, Groups E, F, G/Class III, Division 1
(when using a Zener barrier with a flameproof enclosure) Class I, Zone 1, AEx db [ia Ga] IIB T4 Gb/Zone 21, AEx tb [ia Da] IIIC T135°C Db/Class I, Division 1, Groups C, D, T4/Class II, Division 1, Groups E, F, G, T135°C/Class III, Division 1

Zone/Division

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 apparatus*5)
(when using a Zener barrier with a flameproof enclosure) Zone 1/21 Division 1

Electrical ratings

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 / Lo (IIB): 0.2 mH / Co (IIB): 0.72 μF
(when using a Zener barrier) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF
(when using a Zener barrier with a flameproof enclosure) Um: 250 VRMS / Uo: 34.33 VDC / Io: 112.007 mA / Po: 961.3 mW / Lo: 1.0 mH / Co: 0.37 μF

Temperature

-30°C ≤ Ta ≤ 60°C / -30°C ≤ Tp ≤ 85°C
(when using an Isolated barrier) ─
(when using a Zener barrier) ─
(when using a Zener barrier with a flameproof enclosure) Flameproof enclosure: -30°C ≤ Ta ≤ 60°C

Enclosure rating

IP67 (IEC60529), 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) Flameproof enclosure : IP67 (IEC60529) Enclosure Type 4X (NEMA250)

Protection circuit

Reverse power connection protection, power supply surge protection

Weight

Approx. 920 g
(when using an Isolated barrier) Barrier: Approx. 320 g
(when using a Zener barrier) Barrier: Approx. 100 g
(when using a Zener barrier with a flameproof enclosure) Flameproof enclosure + barrier (without cable glands): Approx. 1300 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.
*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.
*5 Associated apparatus are devices that comprise both intrinsically safe and non-intrinsically safe circuits. The FR-LEX20L meets the requirements for intrinsically safe construction when used in conjunction with associated apparatus.

Back to top

Amplifier unit

Model

FR-SA1

FR-SA2

FR-SA1C

FR-SA0

Image

Type

Short Separated Amplifier Unit Cable Main Unit

Short Separated Amplifier Unit Cable Expansion Unit

Short Separated Amplifier Unit M8 connector Main Unit

Short Separated Amplifier Unit Zero line Expansion unit

Response time

0.4 s, 1.5 s, 4 s (default value), 10 s

Output

No. of control outputs

Maximum 5

Maximum 2

0

Control output/auxiliary output

NPN/PNP open collector (switchable) up to 30 VDC or less, max 50 mA for each
Total 750 mA or less for the entire amplifier when adding five or more expansion units
Residual voltage 1.4 V or less (50 mA or less)
N.O./N.C. switchable
IO5 used in combination with external input

NPN/PNP open collector (switchable)
Up to 30 VDC or less, max 50 mA for each
Residual voltage of 1.4 V or less (50 mA or less)
N.O./N.C. Switching type
IO1 used in combination with IO-Link
IO2 is used in conjunction with analogue output/external input

─

Analogue output

0–20 mA/4-20 mA
Maximum load resistance 260 Ω
(Response time: 0.2 s (90% response) after control output is confirmed)

─

0–20 mA/4–20 mA
Maximum load resistance 260 Ω
(Response time: 0.2 s (90% response) after control output is confirmed)

External input

Short circuit current: 1.5 mA or less Input time: 500 ms or more

External communication

—

NU Series

IO-Link v1.1/COM2

NU Series

Analogue output Precision

Resolution

1 mm *1

—

1 mm *1

─

Zero accuracy

±0.1 mA (zero point = 4 mA) *1

±0.1 mA (zero point = 4 mA) *1

Full-scale accuracy

±0.2 mA (full-scale = 20 mA) *1

±0.2 mA (full-scale = 20 mA) *1

Expansion

When added to FR-SA1 (FR-S01 connection): Up to 8 units
(9 units including the parent machine) *2
When added to FR-SA1 (FR-SH01 connection): Up to 12 units
(13 units including the parent machine) *2
When FR-SA2 is added to the NU Series: Up to 16 units *3

—

When connected with NU Series:
Up to 16 units *7

Power supply

Power voltage

24 VDC +25%/−20%*4*5 including ripple, Class2 or LPS

Power consumption

When FR-S01 is connected: up to 1940 mW or less (72 mA or less at 24 V)
When FR-SH01 is connected: up to 1560 mW or less (56 mA or less at 24 V)
(Excluding Load Current)

When FR-S01 is connected: up to 1690 mW or less (60 mA or less at 24 V)
When FR-SH01 is connected: up to 1310 mW or less (48 mA or less at 24 V)
(Excluding Load Current)

1880 mW or less (63 mA or less at 24 V) (Excluding Load Current)

1620 mW max. (53 mA max. at 24V) (Excluding Load Current)

Environmental resistance

Ambient temperature

–20°C to +55°C (no freezing) *6

Relative humidity

Up to 85% RH (no condensation)

Protection circuit

Protection against reverse power connection, power supply surges, output overcurrent protection, and output surges

Material

PC

Weight

Approx. 100 g

Approx. 90 g

Approx. 20 g

*1 This is the 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.
*2 The number of expansion units can be increased by making the output current less than 750 mA in total. Contact your local KEYENCE representative for more details.
*3 Contact your local KEYENCE representative when adding more than the aforementioned number of units. When FR-S01 is connected: 6 units. When FR-SH01 is connected: 8 units.
*4 When expanding the FR-SA2 with the number of units indicated on the right or more, use a power voltage of 21.6 V or higher. When FR-S01 is connected: 1 unit; when FR-SH01 is connected: 8 units.
*5 When expanding the system by four or more FR-SA0 units with the FR-S01 connected or by ten or more FR-SA0 units with the FR-SH01 connected, use a power voltage of 21.6 V or higher.
*6 If the number of expansion units is one, the ambient temperature must be 50°C or less, and if the number of expansion units is two or more, the ambient temperature must be 45°C or less.
*7 Contact your local KEYENCE representative when adding more than the aforementioned number of units. When FR-SH01 is connected: 13 units.

Back to top