IFM LW2720 - continuous level sensor NON-CONTACT LEVEL TRANSMITTER

80 GHz frequency enables level measurement with millimetre precision of up to 10 metres.
Non-contact measuring principle: no malfunctions due to deposits or wear.
Certified for use in hygienic areas.
Simple installation and maintenance-free operation

Number of inputs and outputs	Number of digital outputs: 1; Number of analogue outputs: 1
Process connection	G 1 Aseptoflex Vario

Special feature	Gold-plated contacts
Dielectric constant of the medium	≥ 2
Recommended media	water; hydrous media
Medium temperature [°C]	-40...150;(see diagram:)
Maximum speed of the change of level [mm/s]	200
Pressure rating [bar]	8
Note on pressure rating	0 barat medium temperature < - 20 C
Vacuum resistance [mbar]	-1000
MAWP (for applications according to CRN) [bar]	8
Radio approval for	EU/RED; United Kingdom; South Korea; USA; Canada; Australia; New Zealand; Vietnam; Singapore
Note on radio approval	The list of countries applying the European Radio Equipment Directive 2014/53/EU (RED) can be found under “Downloads”.

Operating voltage [V]	18...30 DC
Current consumption [mA]	< 80
Protection class	III
Reverse polarity protection	yes
Power-on delay time [s]	< 15
Measuring principle	FMCW (80 GHz technology); frequency range 77 - 81 Hz

Inputs / outputs

Number of inputs and outputs	Number of digital outputs: 1; Number of analogue outputs: 1

Outputs

Total number of outputs	2
Output signal	switching signal; analogue signal; IO-Link
Electrical design	PNP/NPN
Number of digital outputs	1;(2 parameterisable)
Output function	normally open / normally closed;(parameterisable)
Max. voltage drop switching output DC [V]	2.5
Permanent current rating of switching output DC [mA]	50
Number of analogue outputs	1
Analogue current output [mA]	4...20, invertible; (scalable)
Max. load [Ω]	43,5 * (Ub – 18) + 600 Ω
Short-circuit protection	yes
Type of short-circuit protection	pulsed
Overload protection	yes

Measuring/setting range

Measuring range [m]	10;(see diagram:)
Sampling rate [Hz]	> 3

Accuracy / deviations

Accuracy	± 2 mm
Resolution [mm]	1
Zero signal (current) [mA]	3.8
Full signal (current) [mA]	20.5
Temperature drift per 10 K	± 1 mm

Response times

Response time [ms]	330

Interfaces

Communication interface	IO-Link
Transmission type	COM2 (38,4 kBaud)
IO-Link revision	1.1
SDCI standard	IEC 61131-9
Profiles	Smart Sensor ED2: SSCs (0x8001), Measuring Sensor (0x000A)
SIO mode	yes
Required master port type	A
Process data analogue	1
Process data binary	2
Min. process cycle time [ms]	6
Supported DeviceIDs	Type of operation DeviceID default 1324

Operating conditions

Ambient temperature [°C]	-40...80
Note on ambient temperature	see diagram:
Storage temperature [°C]	-40...90
Protection	IP 68; IP 69K

Tests / approvals

EMC	DIN EN 61326-1 group 1: Class A (IO-Link active); B (IO-Link not active, with analogue and switching outputs)
Shock resistance	DIN EN 60068-2-27 50 g (11 ms) / 20 g (6 ms)
Vibration resistance	IEC 61298-3 2 g (10...1000 Hz)
MTTF [years]	330

Weight [g]	727.15
Materials	stainless steel (1.4404 / 316L); PA; FKM; FVMQ
Materials (wetted parts)	PTFE; EPDM
Process connection	G 1 Aseptoflex Vario
Surface characteristics Ra/Rz of the wetted parts	< 0.76

Notes	An IO-Link master and a parameter setting software (e.g. moneo or LR DEVICE) are required for initial set-up.
Pack quantity	1 pcs.

Electrical connection

Connection	Connector: 1 x M12; coding: A; Contacts: gold-plated

Diagrams and graphs

Angle of radiation	Angle of radiation (α): 10° distance (D) 2 m- Beam width (W) 0.4 m distance (D) 4 m- Beam width (W) 0.7 m distance (D) 6 m- Beam width (W) 1.1 m distance (D) 8 m- Beam width (W) 1.4 m distance (D) 10 m- Beam width (W) 1.8 m

	X process temperature °C Y Ambient temperature °C

	1 AdapterexampleE33208 A accuracy B distance

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — LW2720-00 — 27.03.2024 —