Unisteri

Compact Swing Door Laboratory Sterilizers

Unisteri swing door sterilizers are available in three sizes all providing a compact footprint to help optimize available floorspace in your laboratory. The Unisteri is ideal for sterilizing a range of laboratory materials, such as instruments, textiles, rubber goods, liquids agars, and animal diet and cages. With a range of options, including recessed wall mounting, EN285 compliant air detectors, and effluent sterilization cycles, Unisteri sterilizers can be configured to match your exact requirements while providing exceptional value.

Safe & effective sterilization of laboratory media & equipment

Chamber Construction

Unisteri sterilizers are equipped with a 316L stainless steel chamber for superior durability. The chamber is constructed in accordance with ASME Section VIII, Division 1, for unfired pressure vessels and stamped for 45 psig/144°C design temperature and full vacuum. The chamber is rectangular in design and jacketed. Steam baffles are equipped in the chamber to minimize wetting by condensate and ensure proper steam distribution within the chamber. The chamber floor is slopped to drain to ensure complete drainage of condensate.

The chamber jacket is constructed of 316Ti stainless steel for superior corrosion resistance to plant steam. The jacket is used for preheating the chamber prior to sterilization to ensure temperate uniformity and eliminate condensation. The heated jacket also helps during the drying phase of the cycle for textiles or other porous loads. As an option, the jacket can be utilized to aid in cooling liquid loads by filling with cooling water.

Hinged Doors

Unisteri sterilizers can be equipped with one or two doors. The doors are constructed of 316L stainless steel and swing open to either the left or to the right depending on customer choice at time of order. The doors have a motor driven locking system that automatically locks the door when placed in the closed position. Double door units for pass-through operation are interlocked so that only one door can be opened at one time. The doors are locked whenever pressure is present and cannot be unlocked until the chamber reaches atmospheric pressure.

Piping System

Unisteri steam sterilizers come equipped with copper and brass chamber piping. Valves are industrial grade for reliability and constructed from brass as standard. Stainless steel piping and valves with either threaded fittings or sanitary clamp fittings are available as an option. All piping is insulated and color coded for hot and cold services.

Double Microprocessor Controls

The heart of the Unisteri control system is the double microprocessor that independently monitors itself to ensure accurate process data and double control for safety. The control system is equipped with a RS232 port for connection to a PC or network and can be equipped with a SD memory card for cycle data storage. (20) programmable cycles can be stored with a wide range of programmable parameters. Alarms are announced audibly and indicated in clear text. Cycle parameters and calibration are password protected from unauthorized access. Automatic system diagnosis ensures trouble free operation and easy trouble shooting in case of error.

Double microprocessor control system

8.4” Color touch screen operator interface

(20) Programmable cycles with a wide range of parameters

4.5” Wide printer with digital and graphic printout

RS232 Port for connection to PC or network

Optional chip card system for storage of individual cycles

Automatic start-up and shut-down of utilities

Automatic diagnostic system displayed on OIT and printed on report print out

Alarms are announced audibly and indicated in clear text

21 CFR, Part 11 compliant password protection built-in

Dual temperature sensors provides precise control, evaluation and regulation of temperature inside the chamber

PC software for electronic cycle data storage

Dual absolute pressure sensors are equipped for precise control of pressure and vacuum inside the chamber and pressure inside the jacket

Custom Loading Equipment

BMT USA manufactures stainless steel loading equipment in standard or custom designs to accommodate loads of any size, shape or weight. Our smaller chamber sizes can be equipped with wire or perforated shelves and loading racks, while larger chambers can be equipped with carts and transfer trolleys.

Large pit-mounted chambers include options for tracks and rub rails that can be designed to work with the wheel configuration of your existing equipment. Carts with drop down wheels are available for rooms with limited space.

Unisteri Optional Equipment

4.5″ printer and chip card reader for individual program storage

Operator interface added to the unload side of the sterilizer

<10 Ra mirror finish chamber

Recessed into a wall with sealing frame

Stainless steel piping and valves with threaded or tri-clamp fittings

Air detector to meet EN285 requirements

Air compressor for when facility air is not available

Effluent sterilization cycle and BSL-3 bio containment seal for biohazardous waste

Compact Footprint

Space saving design – less floor space required. Single-door or double-door pass-through versions available.

Stainless Steel Chamber

316L stainless steel chamber and piping with a 316Ti jacket for corrosion free operation.

Energy Efficient

The chamber and piping are fully insulated to help reduce utility consumption. Equipped water recirculation system reduces water consumption by up to 75%

Microprocessor Controls

Double microprocessor controls and instrumentation with a 8.4″ color touch screen.

Door Locking System

Automatic motor driven door locking system. Double pressure sensors ensure the chamber is equalized to atmosphere before the door(s) can be unlocked.

Unisteri Sterilization Cycles

Unisteri sterilizers can be programmed with any combination of dry goods and solution sterilization cycles, with configurable parameters for each cycle phase. The programmed cycle recipes are securely stored in the control system memory and can be effortlessly retrieved and initiated via the touchscreen operator interface. Unauthorized modifications are prevented through a multi-level authentication system, ensuring recipe integrity and operational compliance.

Dry Goods Cycle - Vacuum Drying

Effective sterilization of hard goods, filters, linens, porous materials, wrapped goods, and products that are unaffected by vacuum.

Dry Goods Cycle - Vacuum Drying with Air Pulses

Effective sterilization of rubber stoppers, hoses, and other material where trapped moisture can be difficult to remove.

The load is preconditioned with alternating vacuum and steam pulses, then heated to an exposure temperature between 110°C and 135°C. The exposure temperature is maintained for a specified period, after which drying begins by fast exhaust, vacuum and air pulses which are highly effective in removing moisture from the load. The air pulses can also be heated to further aid the drying process.

Solution Cycle - Gravity Air Removal with Ramped Exhaust

Sterilization of liquids in vented or sealed glass containers

The load is preconditioned with steam pulses before heating to an exposure temperature between 110°C up to 135°C. The exposure temperature is held for a specified time period followed by a gradual exhaust ramping to cool the load back to ambient temperature.

Solution Cycle - Air Over-Pressure with Jacket Water Cooling

Sterilization of liquids in heat or pressure-sensitive containers

The load is preconditioned with steam pulses, then heated to an exposure temperature between 110°C and 135°C. The exposure temperature is maintained for a specified period, after which the cooling phase begins by injecting air at a pressure equal to that inside the product container to prevent damage or deformation. To accelerate cooling, cold water is introduced into the chamber jacket.

Unisteri Chamber Sizes

Unisteri

Compact Swing Door Laboratory Sterilizers

Safe & effective sterilization of laboratory media & equipment

Chamber Construction

Compact Footprint

Stainless Steel Chamber

Energy Efficient

Microprocessor Controls

Door Locking System

Unisteri Sterilization Cycles

Dry Goods Cycle - Vacuum Drying

Dry Goods Cycle - Vacuum Drying with Air Pulses

Solution Cycle - Gravity Air Removal with Ramped Exhaust

Solution Cycle - Air Over-Pressure with Jacket Water Cooling

Unisteri Chamber Sizes

Model

Chamber Dimensions

External Dimensions

Chamber Volume

Doors

Chamber Dimensions

External Dimensions

Chamber Volume

Door Slide Direction

Chamber Dimensions

External Dimensions

Chamber Volume

Door Slide Direction

Chamber Dimensions

External Dimensions

Chamber Volume

Door Slide Direction

Chamber Dimensions

External Dimensions

Chamber Volume

Door Slide Direction

Chamber Dimensions

External Dimensions

Chamber Volume

Door Slide Direction

Chamber Dimensions

External Dimensions

Chamber Volume

Door Slide Direction

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