Forma Steri-Cult 200 Model 3033 CO₂ Incubator

Forma Steri-Cult 200 Model 3033 CO₂ Incubator

The Forma Steri-Cult 200 Model 3033 CO₂ Incubator is a large-capacity cell culture incubator designed for laboratories requiring precise temperature, CO₂, and relative humidity control along with HEPA-filtered airflow. With a 10.5 cu. ft. chamber, 0–20% CO₂ range, infrared CO₂ sensing, actively controlled humidity above 95% RH, and vertical laminar airflow, the Forma 3033 provides substantially more culture space and environmental control than a conventional benchtop CO₂ incubator.

Available used and refurbished from American Instrument Exchange, the Forma Steri-Cult 200 Model 3033 remains a capable platform for biotechnology, pharmaceutical, academic, and biomedical research laboratories. Its combination of large chamber capacity, active humidity regulation, rapid environmental recovery, and filtered airflow makes it particularly useful for higher-volume cell culture and long-duration experiments where maintaining consistent chamber conditions is important.

Key Features

• Large 10.5 cu. ft. cell culture chamber

• Temperature range from ambient +4°C to 45°C

• ±0.3°C temperature uniformity at 37°C

• 0–20% CO₂ control range

• Infrared CO₂ sensor with automatic zero calibration

• Actively controlled relative humidity from ambient to greater than 95% RH

• External 1-gallon humidity reservoir

• HEPA-filtered vertical laminar airflow

• Microprocessor temperature, CO₂, and humidity controls

• Digital LCD display

• Independent high- and low-temperature alarms

• 0.2-micron disposable CO₂ inlet filter

• Large chamber for higher-volume cell culture workflows

• Professionally inspected and tested by American Instrument Exchange

• 90-day warranty included

Forma Steri-Cult 200 Model 3033 Overview

The Forma 3033 Steri-Cult 200 was designed for laboratories that need considerably more culture capacity than a conventional 5- to 7-cu.-ft. CO₂ incubator. Its 10.5 cu. ft. chamber provides substantial room for multiple shelves of flasks, dishes, plates, bottles, and other culture vessels while maintaining controlled temperature, CO₂, and humidity throughout the incubation environment.

Temperature is controlled by a microprocessor system using a platinum sensor. The chamber operates from approximately 4°C above ambient to 45°C, with temperature uniformity of approximately ±0.3°C at a typical 37°C cell culture setpoint.

CO₂ concentration is adjustable from 0–20%. Unlike many older CO₂ incubators that rely on thermal conductivity sensing, the Forma 3033 uses an infrared CO₂ sensor with automatic zero calibration. Infrared sensing measures CO₂ concentration independently of changes in temperature and humidity, making it particularly well suited to high-humidity cell culture environments.

The Steri-Cult 200 also incorporates active humidity regulation rather than relying exclusively on passive evaporation from a conventional water pan. Humidity can be controlled from ambient conditions to greater than 95% RH, giving researchers direct control over another important aspect of the culture environment.

Common Applications

The Forma Steri-Cult 200 Model 3033 is well suited for mammalian cell culture, tissue engineering, cancer research, biotechnology, pharmaceutical development, immunology, primary cell research, hybridoma production, vaccine research, biomedical research, and other applications requiring stable temperature, CO₂, and elevated humidity.

Its 10.5 cu. ft. chamber is particularly useful for laboratories maintaining large numbers of culture vessels or several experimental projects simultaneously. The additional interior volume can also make the 3033 a practical choice for specialized experimental apparatus that cannot be accommodated easily inside smaller CO₂ incubators.

In fact, the large Steri-Cult 200 chamber has historically been used in published research to house specialized cell culture and mechanical-stimulation apparatus, illustrating the flexibility that a larger controlled-atmosphere chamber can provide.

Cell culture laboratories may use the Forma 3033 alongside biosafety cabinets for aseptic culture handling and laboratory centrifuges for harvesting, washing, and sample processing. Laboratory refrigerators provide convenient storage for media and reagents, while ultra-low temperature freezers support longer-term preservation of cells and other biological materials.

Cell Types & Culture Recommendations

The Forma 3033 provides the controlled temperature, CO₂, and humidity required for a broad range of conventional cell culture protocols. Its large chamber makes it especially attractive for laboratories performing higher-volume work or maintaining numerous cultures simultaneously.

Common Cell Types

• Mammalian cell lines

• Primary cells

• Fibroblasts

• Epithelial cells

• Immune cells

• Hybridoma cultures

• Cancer cell lines

• Chondrocytes and tissue-engineering cultures

• Common biotechnology and pharmaceutical research cell lines

Typical Culture Vessels & Equipment

• T-flasks

• Multiwell plates

• Cell culture dishes

• Petri dishes

• Suspension culture flasks

• Media bottles

• Larger culture vessels

• Specialized experimental apparatus compatible with the chamber

The additional space provided by the 10.5 cu. ft. chamber can be especially useful when researchers need to maintain numerous cultures under the same conditions. It can also accommodate larger experimental setups that would be difficult or impossible to fit inside a standard benchtop CO₂ incubator.

Environmental Control & Contamination Protection

The environmental-control system is one of the most distinctive aspects of the Forma Steri-Cult 200 Model 3033. Rather than simply controlling temperature and CO₂, the incubator combines microprocessor temperature regulation, infrared CO₂ sensing, active humidity control, and HEPA-filtered vertical laminar airflow.

The vertical laminar airflow system moves chamber air through HEPA filtration to help minimize airborne contamination while distributing conditioned air throughout the large interior. This is particularly important in a 10.5 cu. ft. chamber, where maintaining consistent conditions between samples positioned at different heights and locations can be more challenging than in a smaller incubator.

Humidity is supplied from an external 1-gallon (3.8 L) water reservoir. The system introduces filtered water into the chamber environment without relying on an immersible heater or conventional steam generator. Locating the reservoir outside the chamber also allows it to be refilled without unnecessarily opening the culture environment.

Relative humidity can be actively controlled from ambient conditions to greater than 95% RH at 37°C, with approximately ±2% control. This is an important distinction from incubators that simply generate high humidity through passive evaporation. Researchers can establish a humidity setpoint appropriate for the culture protocol rather than relying on an uncontrolled equilibrium value.

Maintaining high relative humidity helps reduce evaporation from culture media during extended incubation. This is particularly important with multiwell plates and other vessels containing relatively small media volumes, where evaporation can change nutrient, salt, and reagent concentrations over time.

The infrared CO₂ sensor is another important feature for this generation of incubator. Because infrared measurement is not dependent on temperature or humidity in the same way as thermal conductivity sensing, it provides reliable CO₂ measurement within the warm, humidified chamber. Automatic zero calibration further helps maintain measurement accuracy during extended operation.

Independent high- and low-temperature alarms provide additional protection for valuable cultures, while the CO₂ control system incorporates its own alarm functions. Together, the HEPA-filtered airflow, active humidity regulation, IR CO₂ sensing, and independent environmental monitoring make the Forma 3033 a particularly capable older-generation CO₂ incubator.

Forma Steri-Cult 200 Model 3033 Specifications

Specifications can vary according to production date, electrical configuration, and installed options. Confirm dimensions, electrical requirements, shelving, accessories, and other specifications for the individual incubator before purchase.

Forma Steri-Cult 200 Model 3033 Frequently Asked Questions

What is the advantage of the Forma 3033's 10.5 cu. ft. chamber?

The 10.5 cu. ft. chamber provides substantially more culture capacity than a conventional benchtop CO₂ incubator. Laboratories can maintain larger numbers of culture vessels, dedicate different shelves to separate projects, or accommodate specialized experimental equipment that may not fit inside smaller incubators.

Does the Forma 3033 actively control humidity?

Yes. Unlike incubators that simply generate humidity through passive evaporation from a water pan, the Steri-Cult 200 actively measures and controls relative humidity from ambient conditions to greater than 95% RH at 37°C. This provides researchers with more direct control over media evaporation and chamber conditions.

What type of CO₂ sensor does the Forma 3033 use?

The Model 3033 uses an infrared CO₂ sensor with automatic zero calibration. Infrared sensing is particularly useful in humidified cell culture environments because CO₂ measurement is less affected by changes in chamber temperature and humidity than thermal conductivity sensing.

How does the Forma 3033 help reduce contamination?

The Steri-Cult 200 uses HEPA-filtered vertical laminar airflow to continuously distribute filtered conditioned air through the chamber. The external humidity reservoir and filtered water supply also reduce the need to manipulate an open water pan inside the culture environment.

Is the Forma 3033 suitable for higher-volume cell culture?

Yes. Higher-volume cell culture is one of the strongest use cases for this incubator. Its large chamber, adjustable environmental controls, high humidity, and filtered airflow make it suitable for laboratories maintaining numerous cultures or larger experimental setups.

Is this Forma 3033 refurbished?

Used Forma Steri-Cult 200 Model 3033 incubators offered by American Instrument Exchange are inspected, cleaned, and tested prior to shipment. CO₂ incubators are tested to verify temperature control and readout accuracy as well as chamber CO₂ concentration, with humidity and other installed functions evaluated as applicable. Hardware and components are replaced as necessary, and refurbished equipment includes a 90-day warranty.