Memmert SF450plus – Hot air steriliser for laboratories
The Memmert SF450plus is a hot air steriliser designed to meet the demanding requirements of laboratories and medical facilities that require efficient and safe sterilisation of instruments. Unlike simple disinfection, sterilisation guarantees the complete elimination of microorganisms, thus ensuring optimum protection against contamination. This device stands out thanks to its robust design, precise control technology and strict compliance with the standards applicable to medical devices. Its stainless steel construction, both inside and out, not only guarantees a long service life but also impeccable hygiene.
One of the notable features of the SF450plus is its Setpoint Wait function. This intelligent device ensures that the sterilisation time only starts once the programmed temperature has been reached at all measuring points when external Pt100 probes are used. This precision ensures consistent sterilisation, regardless of the volume or type of load. Combined with HeatBALANCE technology, which optimises heat distribution between the upper and lower heating circuits, this feature ensures consistent thermal performance, even for complex or large loads.
The TwinDISPLAY control, integrated into the ControlCOCKPIT control panel, makes programming and monitoring cycles much easier. The two high-definition colour TFT screens provide quick access to all critical information such as temperature, remaining time and ventilation parameters. The user also benefits from a digital timer that can be set from 1 minute to 99 days, offering flexibility for all types of sterilisation protocols. Adjustable parameters include temperature (in °C or °F), fan speed, air flap position and programme duration.
The SF450plus offers a high-performance ventilation system based on a silent air turbine, adjustable in 10% increments. This forced air circulation ensures optimal thermal uniformity, complemented by a supply of preheated fresh air via an adjustable electronic valve. The vents are equipped with restriction valves to precisely regulate the outgoing air flow. In addition, operational safety is enhanced by a range of features such as mechanical and electronic temperature limiters, an AutoSAFETY system that continuously monitors temperature deviations, and a self-diagnostic system for detecting and analysing faults.
The electropolished stainless steel sterilisation chamber is easy to clean and resistant to heavy loads. Its useful capacity of 449 litres can accommodate up to 8 internal levels, with each shelf supporting up to 30 kg, for a maximum total load of 300 kg. The double-insulated doors, equipped with a two-point compression lock, ensure excellent thermal insulation. To facilitate installation and movement, the unit is mounted on lockable castors.
The SF450plus works with AtmoCONTROL software, allowing programming, management and transfer of programmes via USB port or Ethernet interface. In the event of a power failure, the current programme is saved so that it can be resumed as soon as power is restored. This unit is designed to operate in an ambient temperature range of +5°C to +40°C, up to an altitude of 2,000 m. Its robust design and compliance with regulations make it a reliable piece of equipment for research laboratories, hospitals and any facilities requiring a high level of hygiene and safety in sterilisation.
