Forma™ Environmental Chamber Model 3940, 821.2 L, Stainless Steel

Perform a variety of applications withThermo Scientific™ Forma™ environmental chambers, which can be configured for a variety of purposes and are available in multiple capacities. With a wide range of accessories and years of experience in constructing cabinets, we can construct units to match your most stringent applications.

Broad Range of Features and Controls:

• Wide temperature range of 0° to 60°C that enhances the flexibility of the unit
• Relative humidity control via steam generator from above ambient to 95% at 37°C (not available w/Cat. No. 3920)
• Sophisticated digital controls
• Programmable ramp and soak cycles for temperature and RH†
• Durable cabinets with true laminar airflow through side plenums for extremely tight uniformity
• Phenolic-coated evaporator for use in applications that create corrosive byproducts
• Manual control of defrost and refrigeration cycles
• Visible/audible safety alarms alert to over- and undertemperature conditions, deviation of humidity from set parameters (except Model 3920)

Durable Construction:

• Cold-rolled steel, powder-coated cabinet
• 2″ (5.1cm) thick, CFC-free, foamed-in-place polyurethane insulation
• Stainless-steel interior with solid stainless-steel adjustable shelves
• Directed horizontal airflow system for excellent uniformity
• Locking swivel casters for easy mobility during installation and cleaning
• Leveling feet for stability and added safety in the lab

Broad Range of Options:

• Interior lighting for Models 3920, 3940 and 3949 (Optional)
• Reinforced shelving and flooring for heavy loads
• Heatless dryer for lower humidity levels
• Access ports for probes, sensors
• Interior convenience receptacles
• CO₂ (IR sensor)
• 6″ and 12″ temperature chart recorder
• Other custom options available

Compatible with:

• Recorders (197075, 198036, 198039, 198042, 201144, 201145, 201146, 201147)
• Reach-In/Environmental Chamber Solid Stainless-steel Shelf (224139)
• Reach-In/Environmental Chamber Perforated Stainless-steel Shelf (224155)
• Reinforced Stainless-steel Shelf (224161)
• Fixed Reinforced Stainless-steel Shelf for two shakers (1900005)
• Stainless-steel Door Glass Cover, factory installed (190591)

Recommended for:

Ideal for growth, stability and shelf-life testing applications

Ordering Information

† Humidity controller available on 3940/3949, 3911/3913 only