
PRO Circulation Cooling Thermostats
The LAUDA PRO series by LAUDA represents a new generation of professional circulation and process thermostats, designed for demanding laboratory and industrial applications requiring precise and reliable external temperature control.
The PRO series is engineered to deliver high heating and cooling performance, powerful pump capacity, and maximum process stability — making it suitable for reactors, jacketed vessels, analytical systems, and pilot plant applications.
The LAUDA PRO thermostats are compact, high-performance units optimized for:
• External temperature control of closed circuits
• Continuous operation in laboratory and industrial environments
• High thermal loads and demanding process applications
They combine robust industrial construction with advanced digital control technology and flexible communication interfaces.
Technical Specifications
(Specifications vary depending on the specific PRO model variant.)
Temperature Range
• Working temperature range: approx. –90 °C to +250 °C (model dependent)
• Designed for precise external temperature control
Temperature Stability
• High-precision electronic control
• Stability up to ±0.01 to ±0.1 K depending on operating conditions
Heating Capacity
• High-performance heating system
• Heating output up to approx. 3.6 kW or higher (model dependent)
Cooling Capacity
• Powerful refrigeration systems for low-temperature models
• Optimized cooling output across wide temperature ranges
• Rapid temperature pull-down performance
Pump Performance
• Strong pressure/suction pump
• Adjustable pump levels
• Suitable for high-resistance external circuits
• Stable flow for demanding process requirements
Electrical Specifications
• Available in various voltage configurations
• Designed for laboratory and industrial electrical standards
Control & Interface
• Modern digital control unit
• High-resolution display
• Clear visualization of:
– Set temperature
– Actual temperature
– Pump status
– Operating mode
• Intuitive menu navigation
• Integrated programmer functionality (model dependent)
Communication Interfaces
Depending on configuration, PRO models may include:
• USB interface
• Ethernet (LAN)
• RS232 / RS485
• Analog interfaces
• External Pt100 sensor connection
These interfaces allow integration into automation systems and laboratory networks.
Safety Features
• Overtemperature protection
• Low liquid level monitoring
• Self-diagnostic system
• Visual and acoustic alarms
• Compliance with international safety standards
Mechanical & Design Features
• Compact footprint
• Robust industrial housing
• Front-access service components
• Low-noise refrigeration system
• Designed for continuous 24/7 operation
Typical Applications
• Reactor temperature control
• Jacketed glass reactor systems
• Pilot plant temperature regulation
• Process simulation
• Material testing
• Analytical instrumentation
• Semiconductor and chemical processes
The PRO series is particularly suited for applications requiring:
• Wide temperature ranges
• High cooling capacity
• Precise process stability
• Long-term continuous operation
Advantages of LAUDA PRO
• Very wide operating temperature range
• High temperature precision
• Powerful pump performance
• Flexible communication interfaces
• Industrial-grade reliability


