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

Temperature Range: 0°C to 60°C; Relative Humidity (RH): Ambient to 95% at 37°C; Light: No Lighting

Supplier:  Thermo Scientific™ 3940

Catalog No. 13-067-066

Description

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

 

Specifications

• Capacity (English): 29 cu. ft.
• Capacity (Metric): 821.2 L
• CO2 Sensor Technology: IR Sensor
• Material: Powder-coated Cold Rolled Steel
• Relative Humidity: 95%
• Type: Environmental Chamber
• Humidity Accuracy: ±5.0%
• Humidity Display: Digital, dual LED (direct set and read in % RH)
• Humidity Sensor: Bulk polymer
• Input Water Pressure: Water Inlet Gravity to 40psi
• Refrigerant: CFC-free, R134A
• Temperature Resolution: 0.1°C
• Temperature Uniformity: ±0.3 at 25° to 37°C
• Water Resistivity: 50kilohm to 1megohm resistance
• Width (English): 38 in.
• Width (Metric): 96.5 cm
• Height (English): 88.5 in.
• Height (Metric): 224.8 cm
• Depth (English): 32 in.
• Depth (Metric): 81.3 cm
• Electrical Requirements: 208/220 V, 60 Hz
• Amperage: 15 A

• Certifications/Compliance: ICH, FDA, TAPPI, ASTM™
• Chamber Material: Stainless Steel
• Lighting: No Lighting
• No. of Shelves: 6 supplied/19 max.
• Temperature Range (Metric): 0°C to 60°C
• Display: Digital Dual LED
• Humidity Control: Microprocessor, PID
• Humidity Resolution: 0.01
• Humidity Source: Steam generator; initial fill approx. 1 qt. (1L)
• Programmability: Temperature ramp and soak, up to 24 steps
• Temperature Accuracy: ±0.1 at 25° to 37°C
• Temperature Sensor: RTD
• Water Consumption: 0.25 gal./hr. input water volume
• Dimensions (D x W x H) Interior: 27 x 31 x 60 in. (68.6 x 78.7 x 152.4 cm)
• Width (English) Interior: 31 in.
• Width (Metric) Interior: 78.7 cm
• Height (English) Interior: 60 in.
• Height (Metric) Interior: 152.4 cm
• Depth (English) Interior: 27 in.
• Depth (Metric) Interior: 68.6 cm
• Voltage: 208/220 V
• Frequency: 60 Hz