Memmert Steriliser S SF450plus

Memmert Steriliser SF450plus

Precision Hot Air Sterilisation with Advanced Control and Safety Features

The Memmert SF450plus is a high-capacity, CE-certified medical hot air steriliser designed to deliver reliable and reproducible sterilisation results. Engineered for laboratories and medical facilities, it ensures that instruments are sterilised only after reaching the exact target temperature throughout the chamber—thanks to its SetpointWAIT function. With its advanced control technology, custom programming options, and powerful safety systems, the SF450plus is ideal for the most demanding sterilisation tasks.

Features

• Certified medical device (CE 0197)

• TwinDISPLAY high-definition TFT colour screens for precise digital control

• Adaptive PID-microprocessor controller for consistent heating

• SetpointWAIT function ensures sterilisation begins only when all target temperatures are met

• HeatBALANCE function allows fine-tuned upper/lower heat distribution (±50%)

• Two Pt100 sensors (DIN Class A) with 4-wire circuitry for redundant temperature monitoring

• Natural convection airflow with adjustable air flap for fresh air intake

• Adjustable parameters: temperature (°C/°F), fan speed, air flap, programme time, timezone settings

• Calibration at three user-defined temperature points

• Programme memory retention in case of power failure

• Delivered with AtmoCONTROL software for programme management via USB or Ethernet

• Lockable double stainless steel doors with two-point compression locking

• Durable, hygienic stainless steel interior with four-sided heating and easy cleaning

• Quiet forced-air turbine with adjustable segment control (in 10% steps)

• Mounted on lockable castors for mobility

Applications

• Sterilisation of surgical tools, laboratory instruments, glassware, and containers

• Suitable for hospitals, research labs, pharmaceutical environments, and industrial applications

• Ideal for environments where validated sterilisation at specific chamber-wide temperatures is required

Specifications

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

• Temperature accuracy:

  • Up to 99.9 °C: ±0.1 °C

  • From 100 °C: ±0.5 °C

• Working temperature: At least 10 °C above ambient up to +250 °C

• Temperature sensor: 2 Pt100 sensors, DIN Class A, 4-wire circuit

• Control system:

  • TwinDISPLAY PID digital microprocessor

  • Adjustable timer: 1 minute to 99 days

  • Three-point calibration

  • Adjustable fan speed, air flap, programme time, and daylight saving settings

• Ventilation:

  • Forced air circulation by quiet turbine, adjustable per segment (10% increments)

  • Electronically adjustable pre-heated fresh air flap

  • Vent connection with restrictor flap

• Communication and documentation:

  • Programme memory retained in case of power loss

  • AtmoCONTROL software on USB stick included

  • Interfaces: USB and Ethernet

• Safety:

  • Mechanical temperature limiter TB (DIN 12880 Class 1)

  • Overtemperature monitors: TWW (Class 3.1) or TWB (Class 2), selectable on display

  • AutoSAFETY system for over/under-temperature protection with automatic shutdown

  • Visual and audible alarms

  • Autodiagnostic fault detection

• Interior:

  • Stainless steel, electropolished, easy to clean

  • Dimensions: 1040 x 720 x 600 mm (W x H x D), excluding 39 mm fan clearance

  • Volume: 449 liters

  • Max number of shelves: 8

  • Max chamber load: 300 kg

  • Max load per shelf: 30 kg

• Exterior:

  • Textured stainless steel casing

  • Dimensions: 1224 x 1247 x 784 mm (plus 56 mm for handle)

  • Rear housing: zinc-plated steel

  • Mounted on lockable wheels

• Electrical requirements:

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

  • Power consumption: approx. 5800 W

• Ambient and installation:

  • Min. distance from rear wall: 15 cm

  • Min. ceiling clearance: 20 cm

  • Side clearance: at least 5 cm

  • Max installation altitude: 2,000 m above sea level

  • Operating temperature: +5 °C to +40 °C

  • Max humidity: 80% RH, non-condensing

  • Overvoltage category: II

  • Pollution degree: 2