High temperature TC K sensor
PR 7451
- Interchangeable insert
- Protective tube Ø8 mm
- G ½ or R ½ process connector
- TC type K, class 2
- Measuring range -50...850°C
Application
- The 7451 is a general purpose thermocouple temperature transmitter designed for high-temperature measurement in demanding industrial environments.
- Ideal for use in chemical plants, refineries, power generation, marine environments and heat treatment processes requiring accurate and stable temperature monitoring up to 850°C.
- Suitable for temperature measurement in both gaseous and liquid media.
- Marine certifications: DNV, BV, LR, ClassNK, RINA
Technical characteristics
- The 7451 model is equipped with an interchangeable Type K, class 2 thermocouple insert, allowing for easy replacement or calibration without removing the entire sensor assembly from the process.
- The design ensures minimal downtime and consistent measurement accuracy in high-temperature applications.
- The protective tube is manufactured from acid-proof stainless steel AISI 316Ti, providing excellent resistance to heat, oxidation, and corrosion.
- A ½" R or ½" G welded thread nipple offers flexible and reliable process connection options.
- The protective tube has an outer diameter of 8 mm, combining durability with a fast thermal response.
- The terminal head is a DIN 43729 form B aluminum housing, finished with a robust industrial-grade lacquer to ensure long-term corrosion protection in harsh operating environments.
Electrical connection
- Delivered with a 2-wire thermocouple connection, ensuring dependable signal transmission and stable performance across the full temperature range up to 850°C.
Options
- Combine with the PR 5300 / PR 5400 series transmitter - we can deliver the transmitter pre-mounted to the sensor.
- Optional ceramic socket available for connection to externally installed transmitters.
- Material certificate, certificate of origin, certificate of conformity and calibration reports can be supplied when ordered together with the sensor.
Data sheet & Manuals
Supplementary documentation
Approvals & Certificates
Order form
Environmental Conditions
| Enclosure rating | IP65 |
| Measuring range | -50...850°C |
Mechanical specifications
| Protective tube size Ø | Ø8 mm |
| Cable connection | M20 x 1.5 Nickel-plated brass cable gland |
| Protective tube material (wetted parts) | EN 1.4571 / AISI 316Ti |
| Sensor head material | Aluminum - red enamel |
| Sensor head type | DIN 43729 form B |
Electrical specifications
| Sensor element | TC K |
| Sensor element type / insulation | Interchangeable insert |
| Accuracy class acc. to IEC 60584 | Class 2 |
| Optional head transmitter | PR5300 / PR 5400 |
Observed authority requirements
| RoHS | 2011/65/EU |
Approvals
| Marine approvals | DNV, BV, LR, ClassNK, RINA |
Do you need help choosing the right device?Our sales engineers are ready to guide you to the device that best fits your application. How to contact us?You can use our quote function or contact form with no obligation. With the quote function, you simply add the devices you are interested in and receive a quote. We will get back to you within 24 hours on business days.
After you orderWhen your order is placed, you will receive a confirmed delivery date within two business days. As soon as your package has been shipped, you will receive an email with tracking details, so you always know where your delivery is. |
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State-of-the-art manufacturing Our 8,500 sqm integrated and automated manufacturing campus in Denmark covers the entire value-chain from design and development to manufacturing. It allows us to design and optimize for testing and manufacturing thereby constantly driving quality up and costs down. |
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