Memmert Steriliser S SF55plus

Memmert Steriliser SF55plus

High-Performance Hot Air Sterilisation with Maximum Safety

The Memmert SF55plus steriliser provides reliable hot air sterilisation for laboratories requiring precision, safety, and compliance with medical standards. With TwinDISPLAY technology and advanced control functions, it ensures sterilisation only begins once the desired conditions are fully met, guaranteeing consistent and accurate results every time.

Key Features

• TwinDISPLAY with two high-resolution TFT color screens

• Digital PID microprocessor controller for precise temperature regulation

• SetpointWAIT ensures sterilisation starts only once the correct temperature is reached at all points

• HeatBALANCE function adjusts upper and lower heating distribution for uniformity

• Adjustable fan speed and fresh air admixture

• USB and Ethernet ports with AtmoCONTROL software for easy programming

• Visual and acoustic alarm system for temperature deviations

Applications

• Sterilisation of surgical instruments, containers, and glassware

• Ideal for use in clinical, pharmaceutical, biological, and chemical laboratories

• Suitable for any setting that requires high-temperature, dry air sterilisation

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 range: minimum 10 °C above ambient up to +250 °C

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

• Control system:

  • TwinDISPLAY PID controller

  • SetpointWAIT function delays start until setpoint is reached

  • HeatBALANCE for adjusting heating zones (-50% to +50%)

  • Timer range: 1 minute to 99 days

  • Adjustable parameters: temperature, air flap, fan speed, program time

• Ventilation system:

  • Quiet turbine fan, adjustable in 10% steps per segment

  • Electronically controlled pre-heated fresh air

  • Ventilation outlet with restrictor flap

• Communication and software:

  • USB and Ethernet interface

  • Data saved in the event of power loss

  • Includes AtmoCONTROL software for programme management

• Safety systems:

  • Mechanical temperature limiter (TB) to cut off heat at +20 °C above nominal

  • Overtemperature monitor (TWW) or adjustable limiter (TWB)

  • AutoSAFETY function for over/under temperature alarm and shutoff

  • Self-diagnostic fault system

  • Visual and acoustic alarms

• Internal chamber:

  • Volume: 53 litres

  • Dimensions: 400 x 400 x 330 mm (depth less 39 mm for fan)

  • Stainless steel interior, easy to clean with large-area heating

  • Includes 1 electropolished stainless steel grid

  • Max. number of internals: 4

  • Max. load per shelf: 20 kg

  • Max. total load: 80 kg

• External construction:

  • Dimensions: 585 x 784 x 514 mm (plus 56 mm for door handle)

  • Textured stainless steel housing

  • Rear panel made from zinc-plated steel

• Electrical requirements:

  • 230 V, 50/60 Hz, approx. 2000 W

  • 115 V, 50/60 Hz, approx. 1700 W

• Installation environment:

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

  • Maximum humidity: 80%, non-condensing

  • Maximum altitude: 2,000 m

  • Clearance: rear 15 cm, top 20 cm, sides 5 cm

  • Overvoltage category II, pollution degree 2