ifm TM4511 Pt100 Temperature Sensor, G 1/2, 50 mm

ifm TM4511 Pt100 Temperature Sensor, G 1/2, 50 mm

The ifm TM4511 is a temperature sensor with a Pt100 element (class A to DIN EN 60751) for connection to an evaluation unit. It measures from -40 to 150 degrees Celsius in liquids and gases through a G 1/2 external thread with sealing cone, and has a probe length of 50 mm with a diameter of 6 mm. The stainless steel body is electropolished, with a surface roughness of Ra below 0.8 micrometres on the wetted part.

Response time T05/T09 is 1 and 3 seconds, so it follows fast temperature changes. Seven Star LLC supplies the TM4511 in Oman and the GCC as an independent supplier.

TM4511 technical specifications

The table lists the values published by the manufacturer for the TM4511. Where a parameter has several operating modes, the headline value is shown; the full parameter list is in the manufacturer documentation.

How the TM4511 works

The TM4511 contains a platinum resistance element whose resistance rises predictably with temperature. The element sits at the tip of a 6 mm stainless steel probe, so heat from the medium reaches it quickly, and the connected evaluation unit converts the resistance to a temperature reading. This is a sensing element for connection to an evaluation unit, not a transmitter with its own output; the accuracy of the measuring chain therefore depends on the evaluation electronics as well as on the probe.

Where the TM4511 fits and related parts

The TM4511 is a sensing element; the TA2105 in this range is a transmitter with 4 to 20 mA or IO-Link output, which does not need an additional evaluation unit. Use the TM4511 where your PLC temperature card or a ifm evaluation unit reads Pt100 directly, or where the sensor must be exchanged without recalibrating the transmitter electronics.

Selection and ordering checklist for the TM4511

Work through the points below before you confirm the order, so that the TM4511 you receive is the one your machine or plant needs.

• Confirm the measuring range -40 to 150 degrees Celsius is enough
• Check installation depth: minimum 15 mm, with a 50 mm probe
• Match the G 1/2 sealing cone connection or adapter
• Verify the evaluation unit supports Pt100 (1 x Pt100, class A)
• Select cordset with M12 connector

The manufacturer lists this article under the type designation Temperature sensor with process connection, TM-050KFER12- /US/. The article number TM4511 is the reference to quote when ordering, and the type designation is useful for technicians who compare the label on an installed unit.

Installation, commissioning and maintenance

Fit the probe directly in the process connection using the cone seal, tighten within the stated torque and make sure the minimum installation depth is reached so that the element sees the true medium temperature rather than the pipe wall. Route the cable away from power cables and connect the M12 plug to an evaluation unit that matches the element. For commissioning, check the reading at a known reference temperature, such as an ice bath, and compare with the displayed value. In service, inspect the probe for scaling or corrosion and replace it if the response becomes slow.

Make sure the probe reaches at least the minimum depth into the flow so heat conduction through the pipe wall does not falsify the reading. Tighten with a torque of 30 to 50 Nm. When pressure rating matters, check the adapter used, since the sensor data refers to the sensor alone. Check the reading against a reference at commissioning.

Typical applications in Oman and the GCC

Pipe and tank temperature for hot water, steam condensate and cooling circuits, heat-exchanger inlet and outlet monitoring, and hygienic process lines. In the GCC it supports monitoring of chilled water, seawater cooling and lubricating oil temperature.

Temperature sensors in utilities and cooling loops see wide swings between night and afternoon. Good thermal contact with the medium and a sealed connector are what keep the readings stable over years of service.

TM4511 compared with related ifm types

The table places the TM4511 next to neighbouring types in the same application group, so you can see whether a sibling would suit the job better.

Information to send with an RFQ for the TM4511

To prepare an accurate offer for the TM4511, please include the following with your enquiry:

• Temperature range and medium
• Process connection, thread and installation length
• Evaluation unit and wiring (element type)
• Cable or connector requirement
• Quantity and delivery location

Documents and quotation

No datasheet is attached to this page. Send us the part number TM4511 and we will confirm which documents are available, such as the datasheet and operating instructions, and for IO-Link devices the device description file.

Seven Star LLC is an independent supplier in Muscat serving Oman and the GCC and is not affiliated with the manufacturer; the name ifm is used only to identify the product. Prices are not shown on the page, so send the part number, the quantity and the delivery location to receive a quotation.