Double-door/pass-through autoclaves Systec H-Series 2D

State-of-the-art engineering
Systec autoclaves ensuring a high quality of laboratory sterilization processes.

Available with four chamber diameter
Available with four chamber diameter: 400 mm, 500 mm, 740 mm and 1000 mm. 1000 mm diameter chamber provides the usable chamber dimension of a 6 x 6 square chamber autoclave.

All-round quality
The sterilization chamber is not only made of robust and corrosion-resistant 316L stainless steel (1.4404), it has also been electropolished and is therefore particularly easy to clean. In addition, all connections on the chamber are designed as tri-clamps. The housing trim and the support frame are made of stainless steel as well. The high-quality Hanno-Tect insulation prevents the separation of particles, allowing Systec autoclaves to be used reliably under clean-room conditions.

Dual sensors
Systec H-Series autoclaves include both a flexible temperature sensor (PT-100) and an integrated pressure sensor. The PT-100 sensor can be placed in fluids to provide a reference point. In addition, the Systec H-Series also feature a second temperature sensor. This one is located in the floor drain.

Triple safety aspects:

• One door only can be opened at a time. If one door is open, the other is automatically locked.
• If the autoclave is switched off or of no current is available (e.g. power failure), booth doors remains locked.
• If the door at the non-sterile side is opened, a sterilization program hast to be performed before the door at the sterile side can be opened.

For use under the most stringent clean room and safety conditions:

• For biological safety laboratories. Fitting as a sterilization an pass-through lock for protecting the external environment.
• For clean rooms in laboratories and production facilities as a sterilization and pass-through lock separating sterile and non-sterile areas.

Systec autoclaves are fitted with the following connections at the rear:

All according to norms and regulations
Systec H-Series autoclaves are specifically designed to withstand higher temperatures and pressure ranges. With their advanced pressure vessels, these autoclaves can operate at temperatures of up to 170 °C and pressures of up to 5 bar (absolute pressure). To retrofit older models, control and safety components can be adapted to higher temperatures and pressures via optional pressure and temperature extension accessories.

Steam generation by steam generator HX

A separate steam generator is incorporated in the housing.

This has numerous advantages:

• No heating elements and no reservoir for dirty water in the chamber.
• In conjunction with the stand-by pre-heating function, only 10 min. heating time to 121 °C with an empty chamber is required.
• Improved air removal by suppressing the air to the bottom with its natural gravitation.
• Quicker cooling as neither the hot water in the chamber nor the separate steam generator need to be cooled.
• After cooling, steam is immediately available for the next sterilization run.

Condensation of steam instead of removal HX

Exhaust steam is condensed automatically via a PT-100-regulated cooling system. This prevents odors and protects waste water piping that may be made of plastic.

Touch-Screen technology
The autoclave is operated quickly and easily via a 5.7-inch, perfectly legible touch display. This offers a high degree of flexibility and many options when using the laboratory autoclave. For example, all data relevant to the process can be displayed both numerically and graphically. Also, 5 helpful programs are already predefined. The user also has the option of creating, changing or deleting up to 100 programs himself. To make the creation of new programs particularly easy for the user, he is guided through the entire process in an easy-to-understand dialog. Newly created programs are automatically assigned a fixed identifier, though an individual name can be chosen as well. The process parameters can be changed as desired.

Pre-defined programs
1 Solids
2 Waste bags
3 Liquid waste
4 Liquids
5 Cleaning
6 Vacuum test*
7 Bowie-Dick test*

These can be expanded to 100 sterilization programs.
* Only in combination with a vacuum device.

Automatic closing and opening system

Safe and smooth-running – a circumferential locking ring automatically closes the door of the autoclave after it is pressed down. A special heat-resistant silicone lip seal ensures reliable sealing. One highlight of this technology: the higher the pressure inside the sterilization chamber, the tighter the lip seal seals – no additional compressed air or other pressure aides are required. In addition, the quick-release door lock is particularly temperature-resistant in accordance with DIN EN (IEC) 61010-2-040. The door stays locked until all excess pressure has been cleared from the sterilization chamber. This effectively prevents contact with hot parts.

Automatic door system

The door opens automatically at the end of the program. This can happen either automatically or by pressing a button – depending on the selected setting. This self-opening function is extremely useful for the workflow, especially when materials still need to cool down or dry after they have been autoclaved. The residual steam can thus escape without further intervention and without interrupting the work. The residual heat supports rapid drying of the items to be sterilized. The automatic door opening is limited to an angle of about 15°. This means that there is no risk of contamination from the outside. To remove the sterilized materials, the door is then opened further by hand.

Systec autoclaves comply with the following standards and regulations:

Pressure vessel:

• 2014/68/EU Pressure Equipment Directive
• ASME Boiler & Pressure Vessel Code, Section VIII, Division 1
• China Stamp

Other guidelines:

• 2014 / 35 / EU Low Voltage Directive
• 2014 /30 / EU on Electromagnetic Compatibility

All autoclaves are CE marked.
We will be happy to provide a complete list of standards and summary of regulations on request.

Select the right process for every sterilization application 
Several options are available that are necessary to obtain correct and validatable results and rapid cooling times. The Options depend on the items to be sterilized. The autoclave can be optimally configured for the necessary tasks.

The table below provides help in establishing the desired configuration. Please obtain additional advice from our experts.

+ Recommended procedure       ? Possibly acceptable         – Not possible

Heating up
The actual sterilization time of e.g. 15 minutes at 121 °C is only a fraction of the total time involved for an autoclave procedure. Especially in the case of sterilizing liquids, the heating up and cooling down phases are considerably longer.

Up to 50 % shorter heat-up times as standard
Due to the combined temperature and pressure regulation, the chamber pressure is increased during the heat-up phase. The result: more rapid temperature equilibrium in the liquids and a shorter heat-up time.

Cooling
The cooling process for liquids is also very slow; this is because, without active rapid cooling, the heat can only be reduced to below 100°C by dissipating the heat via the chamber insulation by radiation (see diagram: conventional cooling).
New system- and process technology make it possible to substantially reduce the overall time required for the sterilization process (see diagram: rapid cooling).

Systec offers many functions for its autoclaves guaranteeing safe liquid sterilization processes at higher productivity.

In addition to conventional cooling by regulated steam exhaust down to 100 °C and subsequent very slow self-cooling down to 80 °C, optional cooling systems for rapid cooling are available.

• Cooling with ambient air ventilation
• Mantle cooling with cooling water
• Mantle cooling with cooling water and support pressure
• Radial ventilator for air circulation and accelerated heat removal from the chamber
• Ultracooler
• Spray cooling with recirculated and recooled sterile water and support pressure

Mantle cooling with cooling water and support pressure HX

During the entire sterilization process a flexible PT-100 temperature sensor monitors the temperature in a reference vessel. It is guaranteed that the sterilization period begins only once the sterilization temperature has been attained in the liquid to be sterilized.

The cooling temperature is also constantly monitored. In accordance with relevant standards to prevent delayed boiling, the lid can only be opened once the temperature of the liquid has been reduced to at least 80 °C.

The use of support pressure in the form of sterile-filtered compressed air during the cooling phase reliably prevents the culture medium from boiling.

Advantages:

• No loss of liquid due to boiling of the culture media
• Improved productivity from reduced cycle times and the full utilization of the filling volume in each bottle
• Prevention of delayed and over-boiling
• Prevention of the risk of bottles bursting during or after sterilization
• Prevention of re-contamination by the use of hermetically sealed bottles during sterilization
• Reduction of cooling time by up to 60 %

Radial Ventilator HX
In conjunction with optional mantle cooling with cooling water and support pressure, the radial ventilator ensures accelerated removal of heat from the sterilization items to the cooled chamber mantle.

• The radial ventilator is placed in the lid of the chamber so that the usable space in the autoclave is not reduced!
• Ventilation performance 250 m3/h
• Reduction of cooling time by up to 70 %

Ultracooler HX
In conjunction with optional mantle cooling with cooling water, support pressure and radial ventilator, it is possible to significantly reduce the recooling time and the entire sterilization process by integrating of the additional ultracooler heat exchanger.

• The ultracooler is placed in the lid of the chamber near the radial Ventilator. The usable space in the autoclave is not reduced!
• Reduction of cooling time by up to 90 %
• Depending on the load, cooling times between 15 and 60 minutes can be achieved

Vacuum system HX
Typical solids are pipette tips (in boxes), empty glassware and waste in bags as wall as porous materials such as filters or fabrics.  The vacuum device effectively removes the air from solids, tubing, porous materials, fabrics and disposal bags, allowing the steam to penetrate completely. The process includes a fractionated pre-vacuum phase in combination with the standard steam generator.

Superdry – for drying solids HX
This optional accessory increases the drying efficiency for solids and porous materials such as filters and fabrics. Deep-vacuum drying using the optional vacuum device in conjuction with Superdry avoids the necessity for subsequent drying in a separate drying cabinet.

Vacuum system HX
Typical solids are pipette tips (in boxes), empty glassware and waste in bags as wall as porous materials such as filters or fabrics. The vacuum device effectively removes the air from solids, tubing, porous materials, fabrics and disposal bags, allowing the steam to penetrate completely.

Exhaust air filtration with condensate inactivation
For the sterilization of hazardous biological substances, Systec autoclaves can be fitted with an optional air exhaust filtration system. The autoclavable sterile filter, consisting of a filter cartridge with PTFE membrane of pore size 0.2 μm, is installed in a presure-proof housing and can be quickly

changed at any time. The filter is also automatically sterilized inline during the sterilization process, monitored by the PT-100 temperature sensor. The condensate is retained inside the pressure vessel during the heating and sterilization phases and thus also sterilized. Through air exhaust filtration and condensate inactivation, it is ensured that no microorganisms can escape before end of the sterilization phase.