TS2229 ifm Temperature Cable Sensor | Class A Pt100 Contact Probe

TS2229 ifm Surface Temperature Sensor — Pt100 Contact Measurement

The ifm TS2229 is a bolt-on surface temperature sensor from the ifm TS temperature cable sensor series. It measures the temperature of solid surfaces through direct thermal contact.

This sensor uses a passive Pt100 resistance element. It connects to an external evaluation unit and does not require a separate power supply. Its compact metal housing supports surface mounting on compatible machine structures.

The TS2229 provides a measuring range of -40 to 90 °C, a 2 m PUR cable, and IP67 protection. It suits applications that require contact-based temperature monitoring without inserting a probe into the process medium.

• Manufacturer: ifm
• Model: TS2229
• Series: TS temperature cable sensor
• Sensor Type: Bolt-on Pt100 surface temperature sensor
• Ordering Description: TS-PT100 CONTACT SENSOR
• Measuring Range: -40 to 90 °C (-40 to 194 °F)
• Protection Rating: IP67

Technical Specifications

Measurement Principle and Engineering Performance

The ifm TS2229 uses the resistance-temperature relationship of a Pt100 element. Its resistance changes with temperature, and a compatible evaluation unit converts that resistance into a temperature value.

• Class A Element: The Pt100 element follows DIN EN 60751 Class A requirements.
• Passive Measurement: The sensor does not generate its own measurement voltage or require an independent supply.
• Contact Measurement: The mounting surface transfers heat to the sensing element.
• Response Behavior: Thermal contact quality affects the time needed to detect temperature changes.
• External Evaluation: The receiving instrument must support the sensor's Pt100 input characteristics.

The stated accuracy formula depends on temperature. At 0 °C, the specified expression gives ±0.15 K. At 50 °C, it gives ±0.25 K. These values describe the stated sensor accuracy expression, not the total uncertainty of the installed measurement system.

Configuration and Connection Requirements

Important: Do not connect the sensor directly to a standard voltage or current input unless a compatible interface supports the Pt100 element. Follow the manufacturer's wiring diagram for terminal assignments.

Installation for Reliable Surface Measurement

1. Select the Measurement Point: Choose a surface that represents the temperature of the equipment or component being monitored.
2. Prepare the Contact Area: Remove dirt, loose coatings, and other material that could reduce thermal contact.
3. Secure the Sensor: Use the specified mounting arrangement and suitable fastening hardware.
4. Improve Thermal Contact: Apply compatible thermal paste when appropriate for the installation.
5. Route the Cable: Keep the PUR cable away from sharp edges, moving parts, and excessive heat.
6. Connect the M12 Interface: Verify connector alignment and the receiving instrument's wiring requirements.
7. Configure the Evaluation Unit: Select Pt100 input mode and the required measurement units.
8. Validate the Reading: Compare the installed reading with a suitable reference measurement.

Surface measurements may differ from internal process temperatures. Consider the material thickness, thermal gradients, ambient conditions, and contact quality when interpreting the reading.

Compatible Equipment and Industrial Applications

The TS2229 is suitable for applications that need surface temperature measurements and a compatible external Pt100 evaluation input.

• Machine Housings: Monitor temperature changes on metal machine surfaces.
• Pump Assemblies: Track surface temperature near bearings or other monitored components where the mounting location is suitable.
• Motor Enclosures: Observe external temperature trends during normal operation.
• Industrial Gearboxes: Monitor selected housing surfaces for abnormal temperature changes.
• Process Equipment: Measure accessible external surfaces on pipes, tanks, and machinery.
• Maintenance Systems: Provide contact temperature measurements to compatible monitoring or evaluation equipment.

These are potential application examples, not a list of certified equipment pairings. Verify the operating range, mounting method, and input compatibility for each installation.

Diagnostic Guidance for Temperature Measurement

The TS2229 is a passive RTD sensor. Diagnostic checks should focus on the sensor element, cable, connector, thermal contact, and receiving instrument.

Field example: A sensor reports a lower temperature than expected on a gearbox housing. Before replacing the sensor, inspect the mounting point and contact pressure. A painted or uneven surface can reduce heat transfer and increase measurement lag.

This example describes a general surface-temperature troubleshooting method. It does not identify a confirmed defect in the TS2229.

Environmental Protection and Approvals

• Ingress Protection: IP67 under the specified product conditions.
• Operating Range: -40 to 90 °C for the stated measuring application.
• Insulation: 2500 V between the sensor housing and internal structure, according to the supplied data.
• Protection Class: III.
• Marine Approval: DNV approval is listed in the supplied specifications.
• Storage Conditions: Confirm the manufacturer's requirements because the supplied data does not state a storage temperature or humidity range.

IP67 does not mean that every installation is suitable for continuous immersion or every chemical environment. Confirm connector sealing, cable routing, and material compatibility for the actual application.

Global PLC Spare HUB's Insight

When selecting the ifm TS2229, engineers should first confirm that the application needs surface temperature measurement rather than direct immersion measurement. This distinction affects sensor mounting, thermal response, and reading interpretation.

The four-contact M12 connection and passive Pt100 element also require a compatible evaluation input. Check the receiver configuration before assuming that an existing temperature input can accept this sensor.

For practical commissioning, compare the sensor reading with a reference instrument at a similar location. Allow the reading to stabilize after mounting. If the values differ, investigate thermal contact and measurement position before adjusting the evaluation system.

For replacement orders, provide the full model number, connector details, and intended mounting location. These details help verify whether the sensor matches the application requirements.

Packaging, Shipping, and 12-Month Warranty

• Product: ifm TS2229 Pt100 surface temperature sensor.
• Packaging: Protective packaging for international transportation.
• Included Accessories: Only items listed in the quotation or order confirmation.
• Warranty: 12 months, subject to the seller's written warranty terms.
• Shipping Methods: DHL, FedEx, or UPS, depending on destination and service availability.
• Dispatch Time: Typically within 24–48 hours after order confirmation, stock verification, and payment clearance.
• Pre-Shipment Checks: Product identification and available visual checks, as applicable.

Contact us to confirm stock, delivery timing, packaging, and warranty coverage before ordering.

Frequently Asked Questions

Q1: Can the TS2229 measure the internal temperature of a liquid?

A1: It is designed for surface mounting on solid bodies. Use a suitable immersion sensor when direct liquid temperature measurement is required.

Q2: Does the sensor need a 24 V DC power supply?

A2: No separate supply is specified because the TS2229 uses a passive Pt100 element. The connected evaluation unit provides the measurement excitation.

Q3: Why can the measured surface temperature differ from the internal machine temperature?

A3: Surface temperature depends on heat transfer, material thickness, ambient conditions, and measurement location. Select a representative point and consider the thermal gradient during interpretation.

Q4: What should I check when replacing an existing surface RTD?

A4: Confirm the Pt100 element, measuring range, connector, cable length, mounting dimensions, and receiver compatibility. Also verify the required accuracy and approval conditions.

Q5: How can I improve response consistency after installation?

A5: Use a clean, suitable contact surface and secure the sensor correctly. Apply compatible thermal paste when permitted, then allow the reading to stabilize before evaluating performance.

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