The Leuze 50142877 GSU14E/16T.3-M12 is an ultrasonic fork sensor designed for reliable label detection in automated production and packaging processes. Its ultrasonic operating principle allows it to detect both transparent and non-transparent labels, making it a useful option for applications where conventional optical detection may require additional evaluation.

This model belongs to the Leuze 14 series and combines a fork-shaped sensing design, adjustable switching threshold, teach input and IO-Link communication. The integrated fork arrangement provides a defined detection area for labels moving through the sensor opening.

Product Identification

Manufacturer: Leuze
Part Number: 50142877
Model: GSU14E/16T.3-M12
Product Type: Ultrasonic Fork Sensor
Main Application: Transparent and non-transparent label detection

Technical Specifications

The following technical information is based on the manufacturer's published product data. Verify the current datasheet and installation requirements before ordering or integrating the sensor into an existing machine.

Specifications are provided for product identification and preliminary selection. Confirm the latest manufacturer's documentation, electrical wiring and configuration for your specific application.

How the Ultrasonic Fork Sensor Works

An ultrasonic fork sensor uses an ultrasonic sensing arrangement across a defined fork opening to identify changes caused by a label passing through the sensing area. The sensor can distinguish label material from the gap between labels, including applications involving transparent label stock.

Compared with selecting a sensor based only on the appearance or color of a label, ultrasonic detection evaluates the acoustic response of the material. This makes the operating principle relevant to label-handling processes where transparent films or similar materials are used.

The GSU14E/16T.3-M12 also provides a teach input and manual fine adjustment of the switching threshold. These functions support adjustment during commissioning, but the actual detection performance should be tested using the label material, backing paper, gap size and conveyor speed used in production.

Typical Industrial Applications

Labeling MachinesDetecting label edges and gaps as labels move through an automated dispensing or application process.

Packaging EquipmentSupporting label detection on packaging lines where repeatable positioning is required.

Transparent Film LabelsProviding an ultrasonic sensing option for transparent label materials that need to be detected independently of their visual contrast.

Automated Production LinesSupplying label state information to compatible control systems for process monitoring and sequencing.

Key Features and Selection Benefits

1. Detection of Transparent and Non-Transparent Labels

The manufacturer's stated application includes both transparent and non-transparent labels. This makes the model worth evaluating for packaging and labeling systems that process different label materials.

2. Defined Fork Geometry

The 4 mm fork opening and 80 mm opening depth provide a defined passage for the label material. Check the mechanical arrangement and label path to ensure the sensor can be mounted without obstructing the production process.

3. IO-Link Communication

IO-Link support provides a communication option for compatible automation architectures. Before integration, confirm the IO-Link master, device configuration, process data and controller requirements.

4. Teach Input and Threshold Adjustment

The teach input and manual fine adjustment can assist with setup. For demanding applications, validate detection stability at the actual line speed and with the exact label and backing material.

5. M12 Connection

The model uses an M12 5-pin A-coded connector. Confirm the mating cable, pin assignment, connector orientation and available mounting space before placing an order.

Installation and Compatibility Checklist

When selecting a sensor for an existing labeling machine, matching the model name alone is not sufficient. Review the following items before replacing an installed device:

Part number: Check that the complete code is 50142877 GSU14E/16T.3-M12 and compare it with the existing nameplate.

Label material: Confirm the sensor is suitable for the actual transparent or non-transparent label and backing combination.

Mechanical fit: Check the fork opening, mounting method, dimensions and label path.

Electrical requirements: Verify the 18 to 30 V DC supply, output configuration and control-system interface.

Communication: If IO-Link is used, confirm device configuration and compatibility with the installed IO-Link master.

Operating conditions: Check ambient temperature, environmental exposure and protection requirements.

Related Leuze Models and Part Numbers

The following related part numbers are provided as additional sourcing references for Leuze sensors, safety products, accessories and other automation components. They are not all equivalent to the GSU14E/16T.3-M12. Confirm each model's function and compatibility independently before ordering.

50134279 PRK25C/4P-M12

50106090 HRTR 318M/66-120

50129886 IS 112 MM/4NO-8N0-M12

66500201 MLD-XM03

50114202 KRTM 20M/P-20-3320-S12

50112109 HRTR 2/42-15F

50112121 HRTR 2/42-50F

560342 BT-SET-240BCS

50124982 BPS 348i SM 100 D

50129867 IS 112 MM/4NC-4E0

520151 AC-SCM5U-BT

50109685 ISS 212MM/4NO-4E0-S12

50121910 SLS46C-40.K28

50117379 RK18B.T2/4P-M12

50148927 PRK25C.XA2/6G-200-M12

50134447 PRK49C.1/4P-TB

50133640 PRK3C.BA3/4P-M8

50137817 ODS9L2.8/LAK-650-M12

66500100 MLD-M002

50133022 MSI-SR-ES31-01

50040097 KD 01-5-BA

50127033 LE46C/4P-M12

50106974 IPRK 18/V L.03

50116346 BCL 304i SF 100

50034119 IPRK 18/A.1 L.4

50129384 HT3C.XL/4P

50109646 IS 208MM/4NO-2N5-S8.3

63000501 ERS200-M1C3-M20-HLR

50129879 IS 112 MM/4NC-4E0-M12

66537200 MLD510-RT3

50137594 AMS 3007I 120

50116467 MK 348

50131020 HTU418B-700/4TX-M12

50130658 KD U-M12-4A-P1-100

50038539 TS 02-4-SA

50134464 HT49CI/4P-TB

50108361 ODSL 8/C66-500-S12

50038538 KD-02-5-BA

50109702 IS 218MM/4NC-8E0-S12

50025118 HRT 96M/P-1610-1200-41

50136521 LCS-2M12B-F03PNO-K020V

50133860 KD S-M12-5A-P1-050

50133614 HT3CL1.B/4P-M8

50133006 MSI-SR-LC31MR-01

63001026 MC388-S2M8-A

50143910 GS 63B/66.3-S8

50117706 PRK5/4P-M8

50137066 ISS 108MM/4NO-2E0-M12

63000101 S20-P1C1-M20-FH

50124983 BPS 348i SM 100

50036352 HRTR 8/66-350-S12

50143277 HT3CI.X/4P-M8

50127046 LS46CI-M12

50141749 PRK3CL1.A3/6-M8.3

50117361 PRK18B.T2/PX-M12

50117704 PRK5/4P-200-M12

50151487 BT-2T-E100

50144190 BCB G40 H25 L010

50123066 CML730i-R05-1280.A/PB-M12

50118591 CML730i-T05-1280.A-M12

424417 BT-2P40

50116339 BCL 304i R1 M 102

50109000 DB 112 UP.1-20,2500

50132925 DDLS 508 40.3 L

50106026 DDLS 200/200.2-10-M12

50148176 HT53CL1.X/LG-M8

50025126 HRT 96M/P-1640-800-41

50139647 HT25CL2/4P-M12

50106085 HRTR 318K/66-120-S12

50142874 IGSU14E/LWT.3SD-M12

50148202 HT55C/LG-M8

50134349 HT15/4X-200-M12

50131549 HT46CI.E/4P-M12

50136245 HT3C.V/2N

50148002 HT5B/4

50133861 KD S-M12-5A-P1-100

50136146 KD S-M12-5A-P1-250

50032003 LSE 96M/R-176W-25

50129977 IS 118MM/4NO-16N

50032004 LSS 96M-175W-26

50129928 IS 108 MM/4NO-2E0

50137383 KF-L-420

68000409 MLC500T40-900

50127042 LS46C-M12

50135135 KD S-M12-8W-P1-150

50109649 IS 208MM/2NO-2N5

50133016 MSI-SR-2H21-01

BCB G40 H47 L050

BCB G40 H47 L070

MSI-SR5B-01

MSI-SR5B-02

MSI-TRMB-01

MSI-TRMB-02

GS 63B/6D.3-S8

GS 61/6D

GS 61 6D.2

Frequently Asked Questions

1. What is the Leuze 50142877 GSU14E/16T.3-M12?

It is an ultrasonic fork sensor designed for detecting transparent and non-transparent labels in industrial automation applications.

2. Can this sensor detect transparent labels?

Yes. The manufacturer's product data lists transparent and non-transparent label detection as applications. Actual performance should be validated with the specific label and backing materials used in the machine.

3. What is the minimum label width?

The published minimum label width is 4 mm, with a minimum label gap of 2 mm. Check the application conditions and current datasheet before final selection.

4. Does the GSU14E/16T.3-M12 support IO-Link?

Yes. The product data specifies IO-Link support, including COM3 and specification V1.1. Confirm compatibility with the installed IO-Link master and control system.

5. What power supply does this model require?

The published supply voltage range is 18 to 30 V DC. Verify the wiring and electrical requirements against the manufacturer's documentation.

6. Is this sensor a direct replacement for another Leuze model?

Not automatically. Replacement suitability depends on the sensing principle, dimensions, connector, output configuration, communication interface and application. Compare the full specifications before substituting another model.

7. How can I request a quotation for this part?

Provide the complete part number 50142877, model GSU14E/16T.3-M12, required quantity and destination country. Availability and sourcing options can then be checked for your order.