Memmert Steriliser S SN450plus

Memmert Steriliser SN450plus

High-Capacity Hot Air Steriliser with Advanced Dual Display Control

The Memmert SN450plus is a premium-class hot air steriliser designed for efficient, large-volume sterilisation in medical and laboratory environments. As a certified medical device (CE 0197), the SN450plus delivers precise and safe sterilisation with advanced control, monitoring, and safety systems. Its TwinDISPLAY technology enhances usability and operational clarity, while the spacious interior allows for processing larger instrument loads.

Features

• Medical device certification CE 0197 for hospital and laboratory use

• TwinDISPLAY digital PID microprocessor controller with dual high-resolution TFT colour screens

• SetpointWAIT ensures the sterilisation cycle begins only once the target temperature is reached at all sensors

• Dual Pt100 temperature sensors for cross-monitoring and fault redundancy

• HeatBALANCE function for adjusting upper and lower heating zones

• Natural convection with electronically controlled pre-heated fresh air intake

• Programme safety via memory retention in power outages

• AtmoCONTROL software (via USB or Ethernet) for programming and data management

• Visual and acoustic alarms with integrated AutoSAFETY for over/under-temperature protection

• Fully insulated stainless steel double doors with lockable compression lock

• Mounted on lockable castors for flexible placement

Applications

• Sterilisation of surgical tools, metal containers, laboratory glassware, and other reusable medical instruments

• Ideal for hospitals, research institutes, biotechnology labs, and pharmaceutical facilities

• Suitable for high-throughput environments requiring strict temperature control and documentation

Specifications

• Temperature setting range: +20 °C to +250 °C

• Setting accuracy:

  • Up to 99.9 °C: 0.1 °C

  • From 100 °C: 0.5 °C

• Working temperature range: At least 5 °C above ambient up to +250 °C

• Temperature sensors: 2 Pt100 DIN Class A in 4-wire circuit with mutual monitoring

• Control technology:

  • TwinDISPLAY digital PID microprocessor controller

  • Two high-definition TFT colour displays

  • Countdown timer: 1 minute to 99 days

  • HeatBALANCE for heat distribution tuning between upper and lower circuits (-50% to +50%)

  • SetpointWAIT function for controlled sterilisation start

  • Three-point calibration

  • Adjustable parameters: temperature (°C/°F), air flap position, programme time, time zone, daylight saving

• Ventilation:

  • Natural convection system

  • Electronically adjustable air flap for pre-heated fresh air

  • Vent connection with restrictor flap

• Communication:

  • Programme data retained in case of power failure

  • USB stick with AtmoCONTROL software for programming and data export

  • Ethernet interface for software communication

• Safety systems:

  • Mechanical temperature limiter TB (DIN 12880 Class 1)

  • Adjustable overtemperature limiter TWB (Class 2) or monitor TWW (Class 3.1)

  • ASF AutoSAFETY system for following the setpoint range

  • Fault diagnosis system

  • Visual and acoustic alarm signals

• Construction and interior:

  • Interior volume: 449 liters

  • Internal dimensions (W x H x D): 1040 x 720 x 600 mm

  • Max. number of shelves: 8

  • Max. chamber load: 300 kg

  • Max. load per shelf: 30 kg

  • Stainless steel interior with deep-drawn ribbing and integrated large-area heating

  • Fully insulated double stainless steel doors with compression locks

  • Exterior casing: Textured stainless steel

  • Rear panel: Zinc-plated steel

  • Mounted on lockable castors

• Electrical requirements:

  • Voltage: 400 V and 3x 230 V without neutral, 50/60 Hz

  • Power consumption: Approx. 5800 W