TR 420 thermoreactor: a reliable system for thermal digestion in the laboratory
The Spectroquant® TR 420 Thermoreactor from Millipore is an essential solution for laboratories that perform chemical analyses using spectrophotometry. This device enables the thermal digestion of samples under controlled, safe and reproducible conditions, thereby optimising analytical results. Used mainly with commercial test kits for photometric determination, the TR 420 is designed to meet the rigorous requirements of research, environmental and industrial laboratories.
The TR 420 operates on the principle of dry heating, eliminating the risks associated with conventional heating baths and offering simplified cleaning. It is equipped with a thermal block capable of accommodating up to 24 reaction cells (2 rows of 12), each with a standard diameter of 16 ± 0.2 mm. This system guarantees optimal thermal homogeneity, ensuring that all cells reach and maintain the programmed temperature uniformly.
This model offers 8 pre-installed temperature programmes covering commonly used ranges (e.g. 120 °C for 60 minutes or 148 °C for 20 minutes), as well as 8 freely configurable programmes, allowing great flexibility for customised applications. Users can adjust the temperature from 20 to 170 °C and set a reaction time of up to 180 minutes, catering to a wide range of analytical methods.
The control panel is easy to use, with a clear digital display and six control keys for smooth navigation between the various menus. Programme management is accompanied by LED indicators showing the operating status: heating, holding or end of reaction. These indicators allow real-time monitoring of the process progress without opening the lid, enhancing safety and efficiency.
To guarantee consistent performance, the TR 420 also includes a temperature test programme, which allows the temperature control to be checked using an external sensor (optional). This test ensures that the actual temperature closely matches the programmed value, within a tolerance of ± 2 °C, thus validating the reliability of the appliance.
In terms of safety, the TR 420 complies with international standards (CE, cETLus, EN 61010), with protection against overheating (at 190°C ± 5°C) and a housing that remains below 30°C even during prolonged operation at high temperatures. The user is protected by a safety cover, and the device is designed to accept only compatible cells with screw caps to prevent any risk of leakage or explosion.
Maintenance is minimal thanks to a robust, maintenance-free design, limited to periodic cleaning of the housing and thermal block.
The TR 420 integrates seamlessly into modern laboratory protocols, offering precision, reliability and safety. It is the first choice for professionals looking for a high-performance, durable and easy-to-use thermal digestion device.
