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The Siemens SITRANS LT500 is a versatile level monitor and controller designed to work with ultrasonic level transmitters and transducers, providing advanced level measurement, pump control, alarm management, and open channel flow monitoring for one or two measurement points. Compatible with devices such as Siemens EchoMax transducers, the LT500 delivers reliable process control for municipal and industrial applications.
Ideal for wet wells, flumes, weirs, chemical storage tanks, liquid storage, and dry bulk solids, the LT500 combines flexible I/O, advanced relay logic, and multiple communication options in a rugged polycarbonate enclosure. It supports single- and dual-point level monitoring, differential level control, volume conversion, pump alternation, and alarm functions, making it well suited for demanding level control applications.
The intuitive four-button HMI with menu-driven programming and built-in application wizards simplifies commissioning and operation, while automatic false echo suppression improves measurement reliability by filtering signals from fixed obstructions. Removable terminal blocks further streamline installation and maintenance.
The LT500 receives level data from one or two compatible ultrasonic transmitters or transducers via 4-20 mA or HART communication. It processes the incoming measurements to calculate level, volume, differential level, or open channel flow, then uses programmable outputs and relays to control pumps, activate alarms, or communicate process data with PLCs and SCADA systems.
Key Features
- Designed for use with Siemens ultrasonic level transmitters and transducers
- Single- or dual-point level monitoring and control
- Supports one or two 4-20 mA/HART sensor inputs
- Open channel flow measurement and volume conversion
- Advanced pump control with pump alternation and scheduling functions
- Differential level control and programmable alarm functions
- Two discrete inputs for backup level override using point level devices
- Two 0/4-20 mA analog outputs
- Up to six independently programmable relays for pump control, alarms, and remote totalization
- Automatic false echo suppression for improved measurement reliability
- Easy-to-use HMI with four-button programming and application setup wizards
- Removable terminal blocks for simplified wiring
- Available communication options include HART, Modbus RTU, PROFIBUS PA, PROFIBUS DP, and PROFINET
- Wall or panel mounting options
- Remote configuration using SIMATIC PDM or SITRANS DTM
