Thermo Scientific™

Forma™ Environmental Chamber Model 3911, 311.5 L, Stainless Steel

Catalog number: 3911
Thermo Scientific™

Forma™ Environmental Chamber Model 3911, 311.5 L, Stainless Steel

Catalog number: 3911
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.
 
Catalog Number
3911
also known as 3911-11
Unit Size
Each
Price (USD)
Full specifications
No. of Shelves3 supplied/11 max.
Voltage208/220 V
Amperage15 A
Capacity (English)11 cu. ft.
Certifications/ComplianceICH, FDA, TAPPI, ASTM™
Depth (English) Interior27 in.
Depth (English)32 in.
Depth (Metric)81.3 cm
Depth (Metric) Interior68.6 cm
Capacity (Metric)311.5 L
Chamber MaterialStainless Steel
Dimensions (D x W x H) Interior27 x 31 x 24 in. (68.6 x 78.7 x 60.9 cm)
Temperature Range (Metric)0°C to 60°C
Relative Humidity95%
MaterialPowder-coated Cold Rolled Steel
DisplayDigital Dual LED
Electrical Requirements208/220 V, 60 Hz
Frequency60 Hz
Height (English)51.5 in.
Height (English) Interior24 in.
Height (Metric)130.8 cm
Height (Metric) Interior60.9 cm
Humidity ControlMicroprocessor, PID
Humidity DisplayDigital, dual LED (direct set and read in % RH)
Humidity Accuracy±5.0%
Humidity Resolution0.01
Humidity SensorBulk polymer
Humidity SourceSteam generator; initial fill approx. 1 qt. (1L)
Input Water PressureWater Inlet Gravity to 40psi
ProgrammabilityTemperature ramp and soak, up to 24 steps
RefrigerantCFC-free, R134A
Temperature Accuracy±0.1 at 25° to 37°C
Temperature Resolution0.1°C
Temperature SensorRTD
Temperature Uniformity±0.3 at 25° to 37°C
Water Consumption0.25 gal./hr. input water volume
Water Resistivity50kilohm to 1megohm resistance
Width (English)38 in.
Width (English) Interior31 in.
Width (Metric)96.5 cm
Width (Metric) Interior78.7 cm
CO2 Sensor TechnologyIR Sensor
LightingOptional Interior Lighting
TypeEnvironmental Chamber
Unit SizeEach
Showing 1 of 1
Catalog NumberSpecificationsUnit SizePrice (USD)
3911
also known as 3911-11
Full specifications
EachRequest A Quote
No. of Shelves3 supplied/11 max.
Voltage208/220 V
Amperage15 A
Capacity (English)11 cu. ft.
Certifications/ComplianceICH, FDA, TAPPI, ASTM™
Depth (English) Interior27 in.
Depth (English)32 in.
Depth (Metric)81.3 cm
Depth (Metric) Interior68.6 cm
Capacity (Metric)311.5 L
Chamber MaterialStainless Steel
Dimensions (D x W x H) Interior27 x 31 x 24 in. (68.6 x 78.7 x 60.9 cm)
Temperature Range (Metric)0°C to 60°C
Relative Humidity95%
MaterialPowder-coated Cold Rolled Steel
DisplayDigital Dual LED
Electrical Requirements208/220 V, 60 Hz
Frequency60 Hz
Height (English)51.5 in.
Height (English) Interior24 in.
Height (Metric)130.8 cm
Height (Metric) Interior60.9 cm
Humidity ControlMicroprocessor, PID
Humidity DisplayDigital, dual LED (direct set and read in % RH)
Humidity Accuracy±5.0%
Humidity Resolution0.01
Humidity SensorBulk polymer
Humidity SourceSteam generator; initial fill approx. 1 qt. (1L)
Input Water PressureWater Inlet Gravity to 40psi
ProgrammabilityTemperature ramp and soak, up to 24 steps
RefrigerantCFC-free, R134A
Temperature Accuracy±0.1 at 25° to 37°C
Temperature Resolution0.1°C
Temperature SensorRTD
Temperature Uniformity±0.3 at 25° to 37°C
Water Consumption0.25 gal./hr. input water volume
Water Resistivity50kilohm to 1megohm resistance
Width (English)38 in.
Width (English) Interior31 in.
Width (Metric)96.5 cm
Width (Metric) Interior78.7 cm
CO2 Sensor TechnologyIR Sensor
LightingOptional Interior Lighting
TypeEnvironmental Chamber
Unit SizeEach
Showing 1 of 1

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



 

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