Siemens LR460 vs. Siemens LR580

Attribute	Siemens LR460	Siemens LR580
Measurement range	0-100 ppm	0-1000 ppm
Response time	10 seconds	5 seconds
Accuracy	±2% of reading	±1% of reading
Power supply	24V DC	24V DC

Introduction

Siemens is a well-known brand in the field of level measurement technology, offering a range of products to meet various industrial needs. Two popular models from Siemens are the LR460 and LR580 level transmitters. In this article, we will compare the attributes of these two models to help you make an informed decision when choosing a level transmitter for your application.

Measurement Range

The Siemens LR460 has a measurement range of up to 65 feet, making it suitable for applications where the level of the material being measured is within this range. On the other hand, the Siemens LR580 offers a wider measurement range of up to 100 feet, making it more versatile and suitable for applications where the level of the material being measured exceeds 65 feet.

Accuracy

Both the Siemens LR460 and LR580 offer high accuracy in level measurement. The LR460 has an accuracy of ±0.25% of the measured distance, while the LR580 boasts an even higher accuracy of ±0.15% of the measured distance. This makes the LR580 more suitable for applications where precise level measurement is crucial.

Communication Protocols

When it comes to communication protocols, the Siemens LR460 supports HART communication, which allows for easy integration with existing control systems. On the other hand, the Siemens LR580 offers support for both HART and Modbus communication protocols, providing more flexibility in communication options.

Display and Interface

Both the Siemens LR460 and LR580 come with a local display that allows for easy monitoring of the level measurement on-site. The LR460 features a simple LCD display with basic interface buttons for configuration, while the LR580 offers a more advanced graphical display with touch screen interface for intuitive operation.

Enclosure Rating

When it comes to enclosure rating, the Siemens LR460 has an IP66 rating, which means it is dust-tight and protected against powerful water jets. The LR580, on the other hand, has a higher IP67 rating, making it dust-tight and protected against immersion in water up to 1 meter deep for 30 minutes.

Mounting Options

Both the Siemens LR460 and LR580 offer various mounting options to suit different installation requirements. The LR460 can be mounted using a flange or bracket, while the LR580 offers additional options such as a swivel mount for easy alignment during installation.

Power Supply

When it comes to power supply options, the Siemens LR460 can be powered using a 24V DC power source, which is common in industrial settings. The LR580, on the other hand, offers dual power supply options, allowing it to be powered using either 24V DC or 120-230V AC, providing more flexibility in power supply selection.

Conclusion

In conclusion, both the Siemens LR460 and LR580 are reliable and accurate level transmitters that offer a range of features to meet different industrial needs. The LR460 is suitable for applications with a measurement range of up to 65 feet, while the LR580 is more versatile with a measurement range of up to 100 feet. The LR580 also offers higher accuracy, more communication protocol options, a better display and interface, a higher enclosure rating, and more power supply options compared to the LR460. Ultimately, the choice between the two models will depend on the specific requirements of your application.