Bench-Top Autoclaves Available in Seven Sizes

The Systec D-Series are front-loading, bench-top autoclaves that are available in seven sizes. They are compact on the outside, but with adequate chamber capacities inside, ranging from 23 to 200 l. Each size has an ideal loading capacity for most standard media bottles and Erlenmeyer flasks.

Standard Features

  • Separate but integrated steam generator
  • Autoclave chamber containing internal heating elements
  • Housing, pressure vessel, and support frame made of corrosion-resistant stainless steel
  • Temperature and pressure range 140 °C, 4 bar (excluding for Systec D-23)
  • Completely automatic microprocessor control and LCD display
  • Many sterilization programs
  • Safety-applicable intervention including code-secured access rights for changing parameters
  • Internal memory capacity for storing up to 500 sterilization cycles
  • Timer for starting programs
  • Autofill: Automatic demineralized water feed for steam generation
  • Flexible PT-100 temperature sensor
  • Additional temperature sensor in condense exhaust
  • Temperature-holding operation for liquids after program finishes
  • Calculation of F0 value
  • Unique program for Durham tubes
  • Dedicated program for waste sterilization with pulsed heat-up allowing efficient air exhaust
  • Water-cooled steam exhaust, thermostatically controlled
  • Programmable automatic door-opening when a program has been completed  
  • RS-232 and RS-485 interfaces for external data transmission (network-compatible)

State-of-the-Art Engineering

The Systec autoclaves are advanced, both in their electrical and mechanical components; guaranteeing a higher standard of laboratory sterilization processes. The improved components enable laboratories to match the current sterilization demands while also preparing for the future.

All-Round Quality

The pressure vessel is composed of corrosion-resistant, easy-to-clean stainless steel (1.4571 (V4A) AISI 316 Ti), as well as the autoclave support framework and housing. The autoclave comes with an approved safety valve for excess pressure, and the superior-quality, high-efficiency Hanno-Tect insulation material does not release any particles; Systec autoclaves can, therefore, be used under cleanroom conditions.

Dual Sensors as Standard

The electronic pressure sensor regulates both temperature and pressure along with a flexible temperature sensor in the chamber or in a reference vessel (with liquids). The Systec DX autoclaves feature an extra temperature sensor in the floor drain.

Systec D-23 and D-45 with Feed Water Reservoir

A feed water reservoir enhances the flexibility and mobility of autoclaves. They can be used flexibly in various locations, because of the lack of requirement for a fixed water connection. They can also be assigned directly to a specific work station on a provisional basis.

Meeting all Regulations and Sterilization Standards

The Systec autoclaves are produced as standard for sterilization temperatures up to 140 °C and a steam pressure of 4 bar.

Exception: For Systec D-23 and Systec D-45 systems, extension of temperature and pressure to 150 °C/5 bar is not available.

Designed for future developments, the Systec D-Series are the first to supply the capability for higher pressures and temperatures. The pressure vessel is built to handle operations at 150 °C and 5 bar. Optional accessories for expanding temperature and pressure ranges adapt all safety elements and control components for the higher range of pressure and temperature levels. This option can be retrofitted.

Exception: Systec D-23 autoclaves are equipped only for 136 °C and 3.8 bar.

Steam Generation by Steam Generator DX

A separate steam generator is integrated into the housing. This has various benefits:

  • The system does not require heating elements and there is no reservoir for dirty water in the chamber
  • With the stand-by pre-heating function, an empty chamber can be heated to 121 °C in just 10 minutes
  • Accuracy better than ± 0.3 K with empty chamber
  • Gravity suctions the air downwards, enhancing ventilation
  • Faster cooling as neither the hot water in the chamber nor the separate steam generator require cooling
  • After cooling, steam is directly available for reuse in the following sterilization run

Conventional Steam Generation DE DB

In this system, robust heating elements are combined directly at the bottom of the sterilization chamber. Water can be fed in manually as needed or in models DE, demineralized water can be fed in automatically using the DI-Water connection.

Condensation of Steam Instead of Removal DE DX

Exhaust steam can be condensed automatically via a PT-100-regulated cooling system. This prevents the development of odors, and safeguards plastic waste-water piping.

Operation via Display

In all Systec D-Series autoclaves, control is facilitated via a membrane keypad with acoustic confirmation of input. The display is clear and easy to read, with a logical and ergonomic design. Menu operation is in text form, with selectable languages of English, German, Spanish, French, and Italian ‐ other languages can be requested.

All control operations are performed by a specifically-developed microprocessor. Together with steam pressure, temperature, and sterilization time, it also regulates all options such as fast cooling, pre- and post-vacuum and drying.

Novel Automatic Door-Opening System

Using a circumferential ring system*, the doors of Systec autoclave chambers are automatically locked when shut. A secure lip seal composed of heat-resistant silicone offers reliable tightness; an increase in steam pressure prompts tightening of the seal, without the requirement for extra compressed air or other media.

*Exceptions: In the case of the model D-23, a hook mechanism is used instead of a locking ring system. In the model SystecD-45, the door is closed by means of a bolt.

The door-locking system is temperature-dependent and complies with pressure vessel regulation DIN EN (IEC) 61010-2-040. As long as there is excess pressure in the chamber, the door stays locked. Composed of stainless steel, the door and other parts of the pressure vessel and housing are clad in a nicely designed front cover.

This includes the control panel, display, and parts of the control processing system, and is composed of heat-resistant, insulating plastic. This prevents the operator from touching hot components.

Automatic Door-Opening

The autoclave door operates automatically—either by pressing a button or for model ranges DX and DE automatically at the end of a program. This simple system offers a highly practical and efficient technique for maneuvering the door. Residual heat is used to dry the items being sterilized during the last short phase in the autoclave, and the residual steam is automatically exhausted without intermission.

As the automatic door opening function prevents the door from opening more than an angle of approximately 15 degrees, potential contamination from the outside environment can be restricted. This is mainly useful for items that must stay within the autoclave chamber to cool or dry, as the whole process can be accelerated. After cooling or drying, the door can then be completely opened manually.