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The Thermo Scientific Forma 3110 Water Jacketed CO2 Incubator (Dual Stack) provides accurate CO2 control using either TC or IR sensors, temperature stability, and parameter recovery characteristics, with continuous contamination control technology. 

Specifications (Based on nominal voltages of 115V or 230V in ambients of 22°C to 25°C):

- Temperature:
   Control: +/-0.1°C
   Range: +5°C above ambient to +55°C (131°F)
   Uniformity: +/-0.2°C @ +37°C
   Tracking Alarm User programmable high/low
- Temperature Safety:
   Sensor: Precision thermistor
   Controller: Independent analog electronic
   Setability: 0.1°C
- CO2/O2
   CO2/O2 Control: Better than +/-0.1%
   CO2 Range 0-20%
   O2 Range: 1-20%
   Inlet Pressure: 15 PSIG (1.034 bars), m+/-5 PSIG
   CO2 Sensor: T/C or IR
   O2 Sensor: Fuel Cell
   Readability: 0.1%
   Setability: 0.1%
   Tracking Alarm: User programmable
- Humidity:
   RH: Ambient to 95% @ +37°C (98.6°F)
   Humidity Pan: 0.8 gal. (3 liters) standard
   Optional: Display in 1% increments
- Fittings
  Fill Port: 3/8” barbed
  Drain Port: 1/4” barbed
  Access Port 1-1/4” (3.18cm) removable neoprene plug
  CO2 Inlet: 1/4” hose barbed
- Unit Heat Load: 115V/230V 344 BTUH (100 Watt)
- Shelves: 
  Dimensions: 18.5” x 18.5” (47.0cm x 47.0cm)
  Construction: Stainless steel, perforated, electropolished
  Surface area: 2.4 sq. ft. (0.22 sq. m) per shelf
  Max. per Chamber: 38.4 sq.ft. 3.6 sq. m)
  Loading: 35 lbs (16kg) slide in and out, 50 lbs (23kg) stationary
  Standard: 4
  Maximum: 16
- Construction:
   Water Jacket Volume: 11.7 gal. (43.5 liters)
   Interior Volume: 6.5 cu. ft. (184.1 liters)
   Interior: Type 304, mirror finish, stainless steel
   Exterior: 18 gauge, cold rolled steel, powder coated
   Outer Door Gasket: Four-sided, molded magnetic vinyl
   Inner Door Gasket: Removable, cleanable, feather-edged, silicone
- Electrical:
  115V Models: 90-125VAC, 50/60 Hz, 1 PH, 3.6 FLA
  230V Models: 180-250VAC, 50/60 Hz, I PH, 2.0 FLA
  Circuit Breaker/Power Switch: 6 Amp/2 Pole
  Convenience Receptacle 75 Watts max. (one per chamber)
  Alarm Contacts: Power interruption, deviation of temp., CO2, O2, and RH, customer connections through jack on back of unit. 30V, 1A max.
  Optional Data Outputs: RS-485, 0-1V, 0-5V, 4-20mA
  Installation Category: Overvoltage Category II;  Pollution Degree 2
  Maximum Leakage: Current With ground disconnected, 0.65mA; Maximum permissible leakage, 3.5mA
- Dimensions:
  Interior (W x H x F-B): 21.3” x 26.8” x 20.0” (54.1cm x 68.1cm x 50.8cm)
  Exterior (W x H x F-B): 26.3” x 39.5” x 25.0” (66.8cm x 100.3cm x 63.5cm)
- Weight (per unit):
  Net: 265 lb. (120.2 kg)
  Net Operational: 365 lb. (165.6 kg)
  Shipping: 324 lb. (147.0 kg)
- Safety Specifications:
  Altitude: 2000 meters
  Temperature: 5°C to 40°C
  Humidity 80% RH at or below 31°C, decreasing linearly to 50% RH at 40°C
  Mains Supply Fluctuations: Operating Voltage Range
  Installation Category: 2
  Pollution Degree: 2