General purpose RTD sensor
PR 7405
- Interchangeable insert
- Protective tube Ø9 mm
- G ½ process connector
- 4-wire sensor element
- Accuracy, IEC 60751 class A
- Measuring range -50...400°C
Application
- The 7405 is a general purpose RTD temperature transmitter designed for accurate and reliable temperature measurement across a wide range of industrial applications.
- Suitable for use in process systems, chemical and pharmaceutical plants, power generation, and refinery environments.
- Ideal for temperature measurement in gaseous and liquid media with process temperatures up to 400°C.
Technical characteristics
- The 7405 model features an interchangeable class A Pt100 sensor element, providing high precision and repeatability for demanding temperature monitoring tasks.
- The sensor is supplied with a 4-wire connection, eliminating lead resistance effects and ensuring the highest measurement accuracy even over long cable distances.
- The protective tube is manufactured from stainless, acid-proof steel EN 1.4571/1.4404 / AISI 316L/TI, delivering excellent mechanical strength and corrosion resistance.
- A ½" G welded thread nipple offers a secure and robust process connection.
- An optional cooling extension is available, allowing safe operation and long service life in high-temperature applications up to 400°C (class A sensor -30…300°C).
- The sensor is constructed with a Ø9 mm protective tube and a compact configuration ideal for precision low-to-medium temperature installations.
- The terminal head is a standard DIN 43729 form B housing, made of light-alloy metal and finished with durable industrial lacquer for enhanced corrosion protection.
Electrical connection
- Each sensor element is delivered with a 4-wire configuration, enabling full cable resistance compensation and maintaining consistent accuracy across the measurement range.
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
Order form
Environmental Conditions
| Enclosure rating | IP54 |
| Measuring range | -50...400°C |
Mechanical specifications
| Protective tube size Ø | Ø9 mm |
| Cable connection | M20 x 1.5 Nickel-plated brass cable gland |
| Protective tube material (wetted parts) | EN 1.4571/1.4404 / AISI 316Ti/L |
| Sensor head material | Aluminum - red enamel |
| Sensor head type | DIN 43729 form B |
Electrical specifications
| Sensor element | Pt100 |
| Sensor element type / insulation | Interchangeable insert, thin film / magnesium oxide insulation |
| Sensor element wires | 4-wire |
| Accuracy class acc. to IEC 60751 | Class A (-30…300°C) |
| Optional head transmitter | PR5300 / PR 5400 |
Observed authority requirements
| RoHS | 2011/65/EU |
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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