LAUDA Universa MAX cooling thermostat

LAUDA Universa MAX refrigerated thermostat

This advanced refrigerated thermostat is specially designed to perform reliable and high-precision temperature control processes in laboratory and industrial environments. With a wide operating temperature range and remarkable control accuracy, it offers precise results for demanding applications. Compared to conventional solutions, this system impresses with its energy-efficient refrigeration technology, intuitive controls and comprehensive safety functions, making it the preferred choice for many professional users.

Innovative technology and modular design

The thermostat system impresses with an innovative combination of speed-controlled inverter compressor, electronically controlled expansion valves and variable fans. This synergy ensures minimised switch-on and switch-off cycles and reduces wear on sensitive components. At the same time, energy consumption is reduced, which translates into lower operating costs and more sustainable utilisation in the long term.

A key advantage is the modular design: thanks to the interchangeable control head and various heating and cooling subsections, the system can be adapted precisely to changing requirements. This means that the system remains future-proof even as requirements increase. The improved pump technology, known as the Varioflex pump, offers up to eight selectable performance levels and enables fine adjustment of the flow rate between internal and external circulation. A ball-bearing pump variant is also available for particularly viscous media or applications with impurities in the temperature control bath.

The device has extensive connectivity for smooth integration into existing processes. Ethernet and USB interfaces are installed as standard to ensure flexible data transfer. Up to eleven additional interface modules can be added as an option, including a connection for an external Pt100 sensor. An integrated web server allows convenient remote maintenance and control - securely encrypted and with 2-factor authentication. The Wi-Fi function is certified for numerous regions and enables connection to a PC, tablet or smartphone.

A special safety feature is the adaptive bath edge ventilation (patent application). It prevents water or vapours from penetrating important components, thus minimising the risk of damage. In addition, the cooling thermostat offers reliable sensors for level measurement, acoustic and visual alarm messages and individually adjustable overtemperature protection. The solid user interface consists of a 5-inch colour TFT display with sensibly arranged softkeys and clearly displays all values.

Important technical data at a glance

- Working temperature range: -90 to 200 °C (depending on model)
- Temperature stability: ±0.01 K for high-precision results
- Bath volume: up to 47 litres (depending on model and version)
- Pump pressure: up to 1.1 bar, suction up to 0.4 bar (depending on model)
- Max. flow rate: up to 32 litres/min for fast throughflow
- Power consumption: typically 16 A, mains supply 200-240 V, 50/60 Hz
- DIN 12876-compliant design for safe working

In addition, the appliance uses natural refrigerants for environmentally friendly temperature control. The safety mode and calibration options enable flexible, reproducible process control - whether in pharmaceutical research, food technology or material testing. A weekly schedule function and intuitive remote control options round off the range and relieve the burden on specialised personnel for recurring processes.

Certifications and standards

The entire design complies with DIN 12876 and therefore fulfils high safety and quality standards for liquid bath thermostats. The robust design, combined with CE-compliant electronics, also ensures a high level of protection against over- and under-temperature risks. In addition to the integrated overtemperature protection, an audible signal sounds if limit values are exceeded. Automatic system diagnostics at start-up and detailed error messages enable users to react immediately.

Application examples

- Precise temperature tests in chemical research, for example when synthesising with ethanol as a reaction medium
- Use in biotechnology for stable incubation and fermentation processes
- Material testing at high and low temperatures, for example to determine the load limits of plastics
- Long-term tests in the pharmaceutical and food industries for the precise control of thermal processes

FAQs

How can the pump performance be adjusted?

Up to eight pump stages can be selected via an easily accessible front switch. This allows the flow rate to be optimised for internal or external circulation.

Which temperature control media are particularly suitable

The systems are compatible with various fluids. Thermal oil is used for higher temperatures, ethanol for lower minus ranges. Glycol-water mixtures are also possible, depending on the application.

Is operation via networks possible?

Yes. Thanks to the standard Ethernet and USB interfaces and the integrated web server, monitoring and operation via PC or tablet is easy to realise. WLAN is authorised in many regions and enables wireless control.

What safety functions are available

In addition to over- and under-level protection, an acoustic alarm and freely adjustable overtemperature protection are integrated. The automatic system diagnosis recognises irregularities at an early stage and warns the user.

How does the cooling work at low temperatures?

The appliance uses environmentally friendly, natural refrigerants. The speed-controlled inverter technology allows precise ramping up and down and rapid achievement of the desired set temperature.

Conclusion

The system described here impresses with a sophisticated combination of precision, performance and modern connectivity. The modular design, flexible pump technology and high energy efficiency make it a convincing solution for a wide range of temperature control applications. A multitude of intelligent safety functions and certifications in accordance with DIN 12876 ensure reliable handling. It is an excellent choice for professional users looking for a durable and adaptable temperature control solution.

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