IGT247 IFM Full-Metal Sensor | M18 5 mm PNP Normally Open Proximity Switch

IGT247 | IFM Inductive Full-Metal Proximity Sensor

The IFM IGT247 is an M18 inductive proximity sensor designed for non-contact detection of metal targets in industrial environments exposed to frequent washdown and aggressive cleaning agents. Its full-metal construction uses 316L stainless steel (1.4404) for the housing and sensing face, while IP68 and IP69K protection support demanding cleaning and moisture-exposure conditions.

The sensor uses a 5 mm nominal sensing range, a PNP normally open switching output, and a 10–30 V DC supply. Gold-plated M12 connector contacts provide the specified electrical interface. With a listed pressure rating of 100 bar at the sensing face and an operating temperature range of 0 to 100 °C, the device is intended for applications where mechanical durability, hygienic cleaning routines, and reliable metal detection are important.

Model identification note: The supplied product information identifies the type designation as IGK3005-BPKG/AM/US-104 and the document/model reference as IGT247-01. Verify the exact ordering code on the product label and manufacturer documentation before purchasing. This page uses IGT247 as the requested product reference.

01 | The Engineering Snapshot

02 | Designed for Aggressive Cleaning Environments

The full-metal construction is a key selection factor for machinery exposed to regular cleaning. Stainless steel 316L is used for the housing and sensing face, while the listed IP68 and IP69K ratings address protection against water ingress under their applicable test conditions.

• Frequent washdown: Suitable for evaluation in production areas where equipment is regularly cleaned with water or approved cleaning agents.
• Corrosion-resistant construction: The 316L stainless-steel surfaces are intended for demanding industrial environments. Actual chemical compatibility still depends on the cleaning agent, concentration, temperature, and exposure duration.
• Pressure-resistant sensing face: The specified 100 bar pressure rating applies to the sensing face, not automatically to the entire sensor assembly, connector, cable, or installation.
• Four-direction status indication: Four yellow LEDs positioned at 90° intervals improve visibility of the switching state from different viewing angles.
• Gold-plated contacts: The M12 connection uses gold-plated contacts as specified, helping provide the intended connector interface.

IP69K does not mean unlimited resistance to every chemical or cleaning procedure. Confirm compatibility with the actual washdown chemicals and the connector/cable assembly, and follow the manufacturer's mounting and cleaning instructions.

03 | Detection Performance and Target-Material Effects

The nominal sensing range is 5 mm, with a listed operating distance of 0–4.05 mm. The actual switching point depends on target material, target geometry, mounting conditions, and installation tolerances. The supplied correction factors show why target composition matters when setting a detection gap.

The listed hysteresis is 1–20% of the nominal sensing range (Sr). For reliable commissioning, test the actual target material and dimensions rather than assuming that every metal object will be detected at 5 mm.

Practical setup: Start within the specified operating distance, confirm repeatable switching as the target approaches and moves away, and then establish a margin for vibration, mechanical tolerances, and target variation. Copper targets in particular may require a much shorter gap than steel because the listed correction factor is lower.

04 | Electrical Interface and Output Protection

Before connecting the sensor to a PLC, verify that the receiving input supports PNP switching and that the common wiring is correct. Do not connect the sensor output directly to a load that exceeds its current rating.

05 | Where the IGT247 Can Be Applied

• Food and beverage machinery: Detecting metal machine components or product-handling mechanisms in areas subject to routine washdown, where the installation and material compatibility requirements are met.
• Pharmaceutical and personal-care equipment: Position and presence detection on compatible stainless-steel machinery exposed to frequent cleaning.
• Packaging lines: Detecting metal carriers, mechanical stops, indexing parts, and moving machine elements.
• Filling and conveying systems: Confirming the position of actuators, fixtures, and metal components in wet production environments.
• Industrial process equipment: Non-contact position detection in installations where stainless-steel construction and moisture protection are important.

These are representative applications for a full-metal inductive sensor. The sensor detects suitable metal targets; it is not a general-purpose detector for plastic, glass, or other non-metallic objects. Confirm that the required sensing distance and target material are suitable before specifying it.

06 | Mechanical Installation and Commissioning

1. Confirm the ordering code. Compare the product label with the purchasing specification, especially because the supplied information lists both IGT247 and IGK3005-BPKG/AM/US-104.
2. Check mounting clearance. Verify the M18 × 1 threaded mounting dimensions, 70 mm overall length, and flush-mounting conditions against the machine design.
3. Apply the specified tightening torque. The supplied value is 50 Nm. Confirm that this value applies to the intended mounting arrangement and follow the manufacturer's instructions to avoid damaging the sensor or mounting surface.
4. Connect the M12 interface. Use a compatible connector and cable assembly rated for the environment. Verify pin assignment and supply polarity from the correct wiring diagram.
5. Set the target gap. Adjust the sensor relative to the target material, accounting for the listed correction factor and expected mechanical movement.
6. Test switching behavior. Move the target through the detection zone and confirm repeatable switching and LED indication. Test under representative operating conditions.
7. Validate the PLC input. Confirm that the PNP output is correctly recognized by the connected controller input and that the signal remains stable during machine operation and cleaning cycles.

07 | Diagnostic Guide for Field Engineers

The four yellow LEDs indicate switching status. The supplied data does not establish a dedicated onboard diagnostic interface that identifies every sensor or wiring fault, so troubleshooting should combine LED observation, electrical measurements, target checks, and PLC input status.

Field diagnostic method: First confirm the supply voltage, then observe the LED response as a known metal target approaches, and finally measure the output and check the PLC input state. This sequence helps separate power, sensing, output-wiring, and controller-interface issues without unnecessary component replacement.

08 | Global PLC Spare HUB's Insight

When a proximity sensor is used in a washdown zone, selection should account for both the sensing task and the cleaning environment. A sensor may have an appropriate ingress-protection rating yet still require verification of chemical compatibility, connector sealing, and the pressure rating applicable to the sensing face.

For this model, engineers should pay particular attention to the target-material correction factor. A 5 mm nominal range does not guarantee the same operating distance for steel, stainless steel, aluminium, or copper. Confirm the real target material during commissioning and leave adequate distance margin for vibration and mechanical tolerance.

Before ordering a replacement, check the exact type designation, M18 × 1 mounting, M12 connector, PNP normally open output, and required sensing distance. Because the supplied information contains both an IGT247 reference and an IGK3005-BPKG/AM/US-104 type designation, matching the label to the intended part is especially important.

09 | Product Condition, Warranty, and Shipping

• Product reference: IFM IGT247 inductive full-metal sensor.
• Warranty: 12-month warranty, subject to the seller's warranty terms and conditions.
• Shipping methods: FedEx, UPS, and DHL, subject to destination and service availability.
• Dispatch estimate: Target dispatch within 24–48 hours after order confirmation, subject to stock availability, payment clearance, and order processing.
• Pack quantity: 1 piece; the supplied specification lists two lock nuts.
• Quotation support: Provide the exact type designation, required quantity, and delivery destination to request pricing and verify the correct variant.

10 | Frequently Asked Questions

Q1. Is the 5 mm sensing range guaranteed for stainless-steel targets?

No. The nominal range is 5 mm, but the supplied correction factor for stainless steel is 0.7. Actual switching distance also depends on target dimensions, mounting, and installation tolerances. Validate the sensor against the real target rather than designing around the nominal figure alone.

Q2. Can I connect the sensor directly to a PLC input designed for NPN sensors?

Not without verifying electrical compatibility. This sensor is specified as PNP, normally open. Check the PLC input type, common arrangement, and wiring diagram. If the input requires NPN signaling, an appropriate interface may be needed.

Q3. Does IP69K mean the sensor can withstand every cleaning chemical and pressure-washing procedure?

No. IP69K describes protection under defined ingress testing conditions; it does not establish universal chemical resistance or unlimited pressure tolerance. Confirm the cleaning chemical, temperature, exposure duration, connector sealing, and applicable pressure rating with the manufacturer's instructions.

Q4. What should I inspect if the sensor works before cleaning but fails afterward?

Check the M12 connector and mating cable, seals, cable routing, mounting interface, and exposure to cleaning chemicals. Also verify supply voltage and output switching after the area is safe to access. Do not assume the sensing element has failed until the complete connection and installation have been inspected.

Q5. How do I verify that I am ordering the correct IFM variant?

Compare the complete type designation printed on the label with the required part number, and confirm the output type, sensing range, thread size, connector, temperature range, and pressure requirements. The supplied data references both IGT247 and IGK3005-BPKG/AM/US-104, so request confirmation against the actual product label before placing the order.

Technical Summary

The IFM IGT247 is described as a full-metal inductive proximity sensor with a 5 mm nominal sensing range, PNP normally open output, M18 × 1 threaded housing, M12 connection, and IP68/IP69K protection. It is intended for metal-target detection in demanding industrial environments, including applications with frequent cleaning. Verify the exact ordering code, target-material effects, electrical interface, and installation conditions before purchase.

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