Primary Function: The STERIS Amsco Lab 250 (also known as 250LS) is a robust small autoclave designed for efficient high-pressure steam sterilization across diverse laboratory and industrial applications, ensuring aseptic conditions for critical research and production processes. It offers advanced control and multiple sterilization cycles to handle a variety of materials.

Technical Specifications:

1. Manufacturer: STERIS (formerly Amsco)
2. Model: Lab 250 (or 250LS)
3. Chamber Size: 20" W x 20" D x 38" H (508 x 508 x 965 mm)
4. Capacity: 250 liters (66 gallons)
5. Control System: Allen-Bradley MicroLogix™ with user-friendly A-B PanelView Plus™ 600 interface, featuring a touch-sensitive 18-bit color graphic display (320 x 240 resolution) . Supports up to 20 individually programmable cycles .
6. Door Type: Vertical sliding door with manual operation, available in single or double door configurations for open, cabinet enclosed, free-standing, or recessed mounting . Features a non-lubricated, steam-activated door seal .
7. Vessel Design: ASME rated at 50 psig (3.2 Bar), designed for higher operating temperatures up to 141°C (285°F) . Includes a non-clogging chamber drain line .
8. Steam Source Options: Can utilize building steam or an optional electric steam generator (available in 208V, 240V, 480V), including an integral indirect stainless-steel clean steam generator option .
9. Sustainability Features: Equipped with auto utility start-up/shut-down, standby mode, green mode, and compatible with STERI-Green® and STERI-Green Plus® Water Conservation systems, capable of reducing water consumption by 45-99% .
10. Connectivity: RS-232 interface port for data acquisition and can be connected to a building management system for remote monitoring and alerts .

Applications: Ideal for sterilizing small to medium volumes of media, instruments, glassware, and laboratory waste in various biological, chemical, and life sciences research settings. It supports a range of sterilization needs including non-porous heat- and moisture-stable goods, porous materials, heat-sensitive items, and liquids.

Available Cycles:

1. Gravity Cycle: For non-porous heat- and moisture-stable goods, liquids/media in vented borosilicate glass, and decontamination of supplies .
2. Prevacuum Cycle: For fast, efficient sterilization of porous, heat- and moisture-stable materials, including leak test and daily air removal test cycles .
3. Isothermal Cycle: For low-temperature sterilization of heat-sensitive and heat-coagulable materials/solutions .
4. Liquid Cycle: Specifically for liquids and media in vented borosilicate glass or metal containers (100°C to 135°C or 212°F to 275°F), featuring optimal solution cooling .
5. Waste Bag Cycle: Preconfigured for processing lab waste in autoclavable bags with air removal assistance and controlled exhaust .
6. USP 660 Glassware Cycle: A pre-programmed cycle designed to meet USP 660 standards for sterilizing glassware .

Pricing and Availability: New units are typically available directly from STERIS via quote. Used and refurbished STERIS Amsco Lab 250 autoclaves are frequently available from various equipment suppliers, with prices varying based on condition and configuration.