Selection Notes
• Confirm the sensor type you will connect, such as radar, ultrasonic or generic 4‑20 mA transmitters.
• Determine whether single point or dual point monitoring is required.
• Choose the required communication protocols, such as HART, Modbus, PROFIBUS or PROFINET.
• Verify the necessary relay count for alarms and pump control.
• In addition, confirm mounting style (wall, panel or remote panel) and required power supply type.
Why Choose the Siemens SITRANS LT500
• Universal Compatibility
The LT500 controller connects with radar transducers, ultrasonic sensors, or any 4‑20 mA level device, making it ideal for many liquid, solids or mixed media applications.
• Flexible Level Applications
It supports single and dual point level monitoring, volume calculations and differential control. As a result, the controller can be used in simple or complex process systems.
• Advanced Pump and Alarm Control
Up to 6 programmable relays can manage pump operation, alarms or interlocks, offering logic control for automation tasks.
• Multiple Communications and Diagnostics
LT500 supports HART, Modbus RTU, Modbus TCP, PROFIBUS DP/PA, PROFINET and EtherNet/IP. Therefore, it integrates easily with SCADA and automation systems.
• User‑Friendly Interface
The controller features an easy‑to‑use HMI with menu navigation and wizard‑based setup. In addition, local display options help operators monitor level and pump status at a glance.
• Data Logging and Process Insights
The LT500 includes on‑board data logging and parameter backup. Consequently, operators can analyze historical level and event data for process optimization.
FAQ
Q: What types of level sensors can the SITRANS LT500 work with?
A: It supports radar, ultrasonic and generic 4‑20 mA level devices, including SITRANS LR110, LR120 and Probe LU240.
Q: Does the LT500 support pump control and alarms?
A: Yes. The controller can manage multiple pumps and alarms using programmable relays.
Q: Can the controller communicate with automation systems?
A: Yes. It supports HART, Modbus, PROFIBUS, PROFINET and EtherNet/IP communication protocols.
Q: Where is the LT500 commonly used?
A: Typical uses include wet well level monitoring, tank control, open channel flow measurement and industrial pump stations.









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