Thermo 3920, Operating And Maintenance Manual

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Section 6 – Specifications
Temperature
Control ±0.3°C @ +25°C to +37°C
Range 0°C (32°F) to +60°C (140°F)
Sensor RTD
Controller Digital electronic proportional
Setpoint Digital
Display Digital LED
Readability 0.1°C
Setability 0.1°C
Uniformity ±0.3°C at 25°C to 37°C with
six shelves installed*
Shelves
Standard 6
Maximum 19
Dimensions 30.62”W x 25.81”F-B
(77.78 cm x 65.56 cm)
Construction Solid stainless steel reinforced
Surface Area 5.4 sq. ft. (.51 sq. m) per shelf
Max. Per Chamber 104.3 sq. ft. (9.69 sq. m)
Clearance Adjustable on 3” (7.62 cm)
centers
Loading 35 lbs. (16 Kg) (slide in and out)
50 lbs. (23 Kg) (stationary)
Construction
Volume 29 cu. ft. (823 liters)
Interior 304 2B stainless steel
Exterior Cold rolled steel
Insulation 2” (5.1cm) Foamed urethane
Outer Door Gasket Four sided vinyl compression
Finish Powder coated. Salt spray tests
exceed 1000 hrs. per ASTM
Standard B117-85.
Weights
Net 700 lbs.
Shipping
Motor 850 lbs.
Temperature Alarm
Sensor Thermostat
Controller Thermostat
Setpoint Analog reference dial
Alarm Audible/visual
Fittings
Drain Port 3/8” OD Copper
Unit Heat Load
115V 5500 BTUH (1600W)
220V 6000 BTUH (1750W)
Refrigeration
Compressor 1/4 Horsepower, air-cooled
R-134A
Electrical
120V, 1 PH, 2W, 60Hz, 16 FLA
Power Switch 1 Pole
Line Cord None (lockable disconnect
provided)
Dimensions
Exterior 38.0”W x 87.5”H x 32.0”F-B
(96.5cm x 222.3cm x 81.3cm)
Interior 31.0”W x 60.0”H x 27.0”F-B
(78.7cm x 152.4cm x 68.6cm)
Continuing research and improvements may result in specification
changes at any time. Performance plus or minus the least significant
digit unless otherwise specified.
* Better than ±0.5°C uniformity at all other temperature parameters.
Model 3920 _________________________________________________________________________Specifications
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