Terra Part # 3615-38
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Incubator; Reach In, 29 cu. ft., Large Capacity, Thermo Fisher, 120 V
  • Directed horizontal laminar airflow system creates ideal growth environment
  • Temperature uniformity ensures ideal culturing environment even when chamber is full
  • Three customizable settings for RH system: off, medium, and high
  • Three convenient water fill options: automatic, semi-automatic, and ergonomic manual
  • Heated triple-pane glass door minimizes condensation
  • CO2 Concentration Range: 0 to 20%
  • CO2 Concentration Control: Better than ± 0.1%
  • Humidity system: 15.1 L pan
  • Relative Humidity Range: Off, med.  >80%, high >90%
  • Temperature Control: ± 0.1°C
  • Temperature Uniformity: ± 0.3°C at 37°C
  • Convenient access ports and interior outlet for probes, sensors and power without altering the cabinet.  
  • Includes five adjustable shelves
  • Elevated RH prevents product desiccation in medium-term cultures
  • Enviro-Scan Microprocessor Message Center allows for simple parameter control
  • Selectable temperature, overtemperature, CO2, humidity
  • Audible/visual alarm and alarm silence; Remote alarm contacts
  • Data outputs help meet internal and regulatory documentation requirements

Temperature Range: Ambient +5°C to 50°C

Type: Reach In

Manufactured by: Thermo Fisher

Model: Large Capacity

Capacity: 29 cu. ft.

Convection Type: Forced Air

Sensor Type: Thermocoupler (TC)

Manufacturer SKU: 3950

Exterior Material: Stainless Steel

Maximum Temperature: 60°C

Capacity Range: >20 cubic feet

Unit of Measure: EA

Marks & Listings: cUL

Electrical Specifications: 120 V, 60 Hz

Weight, Product: 500 lb

Dimensions, Product: 38" W x 33" D x 80" H

Weight, Shipping: 660 lb

Dimensions, Shipping: 44" W x 39" D x 86" H

Package Type: Crate

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  1. Shelves, Fixed, Reinforced, Two
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  2. Dual Pen, 115V, 1 probe, Temp/RH
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  3. Additional Thru-Wall Access Port, 2.4" (6.1cm) I.D Factory Installed
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  4. Built-In CO2 Gas Guard, factory installed
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  5. Chart Recorder, 6", 7 Day, 115v, 50/60hz, for Model 3960
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  6. Stainless Steel and powder-coated steel stands adjust to fit cabinets, desiccators and cleanroom equipment of any size. | 1609-20 displayed
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  7. Small 4"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
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  8. Equipment Testing
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  9. Extended Product Warranty
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  • Forma 11 Cubic-Foot Environmental Chamber Ideal for Drug Stability Studies, Biological Research

Features and Benefits

Features, Applications and Cell Roll System

More Information

  • Leveling feet provides stability and added safety
  • Airflow prevents product desiccation
  • Easy to configure and use; audible/visual alarm and alarm silence; remote alarm contacts and available data outputs connects to in-house monitor/alarm to track chamber conditions (helps with meeting internal and regulatory documentation requirements)
  • Data outputs help meet internal and regulatory documentation requirements
  • Built-in features eliminate need for expensive add-ons
  • Interior Dimensions (W x D x H): 31 x 27 x 60 in. (787 x 686 x 1524 mm)
  • Exterior Dimensions (W x L x H): 38 x 33 x 80 in. (965 x 838 x 2032 mm)
  • Available accessories, built-in gas guards, factory-installed data outputs, 2-stage gas regulators and shelves
  • Humidity System: 15.1L pan
  • Relative Humidity Range: Off, med. >80%, high >90%
  • Temperature Control: ± 0.1°C
  • Temperature Uniformity: ± 0.3°C at 37°C
  • Temperature Range: + 5°C above ambient to 60°C
Cell Roll System

The optional cell roll system (shown installed within the incubator chamber) allows extensive production of monolayer cell cultures in standard roller culture vessels.

  • Improves oxygenation and exposure of the cells to the media growth area
  • Increases culture yields by the uniform temperature control and cellroller system's continuous, gentle rotation
  • Accommodates a cell roller up to 7 decks high with 5 positions per deck—maximum total of 35 positions or bottles.
  • Requires three tier models 4862 or 4868 to achieve maximum capacity:
  • three tier cell roller base (15 positions)
  • four add-on tiers (20 positions)
  • and a reinforced floor/ramp to achieve

Directed Horizontal Laminar Airflow System

  • Promotes ideal growth environment by releasing positive pressure feed plenum on the left side of the chamber and a negative pressure return plenum on the right side
  • The combination of airflow directs air across the surface of each solid shelf
  • Each shelf receives a consistent flow of conditioned air when filled with samples or equipment
  • Chamber contents will not block feed plenum
  • Minimizes risk of product desiccation and loss
  • The directed airflow saves time and money by minimizing the risk of product desiccation and loss

Applications for Heratherm Advanced Protocol Security Microbiological Incubators
  • Clinical and Medical labs: microbiological diagnostic testing
  • Pharmaceutical: quality control testing, safety and testing efficacy of manufactured products
  • Food: screening for bacterial contamination
  • Research and biotech labs: bacterial growth, gene expression studies, production of recombinant proteins


Directed airflow passes over the surface if each shelf, ensuring temperature uniformity throughout the chamber.

Forma Environmental Chamber Airflow Diagram

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