Memmert Steriliser S SN450

Memmert Steriliser SN450

Large-Capacity Hot Air Sterilisation with Precise Temperature Control

The Memmert SN450 is a professional-grade hot air steriliser offering exceptional capacity and consistent, reliable sterilisation for laboratories, hospitals, and medical facilities. Certified as a medical device (CE 0197), it is engineered to meet the highest standards of safety and performance. Designed for large-scale operations, the SN450 ensures that instruments are sterilised with absolute precision using dry heat technology.

Features

• Certified medical device according to CE 0197

• SetpointWAIT function ensures sterilisation only begins when the set temperature is reached at all probe points

• SingleDISPLAY control with high-definition TFT display and intuitive digital PID controller

• Adjustable parameters including temperature, program time, and air flap position

• Natural convection heating with large-area heaters for uniform temperature distribution

• Durable stainless steel chamber with easy-to-clean surfaces and reinforced ribbing

• Electronically controlled air flap for pre-heated fresh air admixture

• AtmoCONTROL software for programming and data management via Ethernet

• Autodiagnostic system and alarms for maximum operational safety

• Lockable stainless steel doors with two-point compression locking

• Mobile installation on lockable castors for flexibility

Applications

• Sterilisation of medical and laboratory instruments such as glassware, metal tools, and containers

• Suitable for use in hospitals, clinics, biotech companies, and research facilities

• Ideal for environments requiring large-capacity, dry-heat sterilisation with precise control and traceability

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: At least 5 °C above ambient to +250 °C

• Temperature sensor: 1 Pt100 sensor, DIN Class A, 4-wire circuit

• Control system:

  • SingleDISPLAY adaptive digital PID microprocessor controller

  • High-resolution TFT colour screen

  • Countdown timer adjustable from 1 minute to 99 days

  • SetpointWAIT function for precise sterilisation timing

  • Calibration at three user-defined temperature points

  • Adjustable parameters: temperature (°C/°F), air flap, program time, time zones, daylight saving time

• Ventilation:

  • Natural convection

  • Electronically controlled air flap for pre-heated air admixture

  • Vent connection with restrictor flap

• Communication:

  • Programme saved in case of power failure

  • AtmoCONTROL software via Ethernet (USB stick optional)

• Safety:

  • Adjustable electronic overtemperature monitor

  • Mechanical temperature limiter TB, protection class 1 (DIN 12880)

  • Autodiagnostic system for fault detection

  • Visual and acoustic alarms

• Construction & interior:

  • Interior volume: 449 liters

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

  • Max. number of shelves: 8

  • Max. load capacity: 300 kg total

  • Max. load per shelf: 30 kg

  • Interior: Stainless steel with deep drawn ribbing and large-area heating on four sides

  • Doors: Fully insulated stainless steel with 2-point lock, lockable

  • Exterior: Textured stainless steel casing

  • Overall dimensions (W x H x D): 1224 x 1247 x 784 mm (including 56 mm door handle)

  • Rear housing: Zinc-plated steel

  • Installation: On lockable castors

• Electrical data:

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

  • Electrical load: approx. 5800 W

• Ambient requirements:

  • Minimum clearance: Rear 15 cm, ceiling 20 cm, sides 5 cm

  • Installation altitude: Up to 2,000 m

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

  • Relative humidity: Max. 80%, non-condensing

  • Overvoltage category: II

  • Pollution degree: 2