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 CO 2 (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
Forma™ Environmental Chamber Model 3940, 821.2 L, Stainless Steel
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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.
Сatalog number:
3940
Category: Environmental Chambers
Description
Additional information
Capacity (English) |
29 cu. ft. |
---|---|
Humidity Accuracy |
±5.0% |
Temperature Accuracy |
±0.1 at 25° to 37°C |
Refrigerant |
CFC-free, R134A |
Programmability |
Temperature ramp and soak, up to 24 steps |
Input Water Pressure |
Water Inlet Gravity to 40psi |
Humidity Sensor |
Bulk polymer |
Humidity Resolution |
0.01 |
Humidity Display |
Digital, dual LED (direct set and read in % RH) |
Humidity Control |
Microprocessor, PID |
Display |
Digital Dual LED |
Certifications/Compliance |
ICH, FDA, TAPPI, ASTM™ |
Type |
Environmental Chamber |
Temperature Range (Metric) |
0°C to 60°C |
Relative Humidity |
95% |
No. of Shelves |
6 supplied/19 max. |
Material |
Powder-coated Cold Rolled Steel |
Lighting |
No Lighting |
CO2 Sensor Technology |
IR Sensor |
Chamber Material |
Stainless Steel |
Capacity (Metric) |
821.2 L |
Temperature Resolution |
0.1°C |
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