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In our search, we identified three models of large Ultralow temperature freezer -86 C that are above the basic laboratory standards, but not of pharmaceutical grade. They were compared for characteristics available from manufacturer websites, or communicated by the companies representative.
| Specifications | Innova New Brunswick Scientific model U725 | Premium New Brunswick Scientific modele U700 | Thermo Forma; Fisher FOR990 | Thermo Forma; Fisher FOR956 |
|---|---|---|---|---|
| Capacity litre | 725 l (25.6 pi cu) | 700 l (25 pi cu) | 651.3L (23 pi cu) | 651.3L (23 pi cu) |
| Insulation | “Ultra-thin (3.15”“ 88mm thick) vacuum insulation panel encapsulated between a metallic polymer film barrier bonded to polyurethane foam” | polyurethane foam 130 mm thick | non-CFC foamed-in-place polyurethane insulation in the cabinet; 12.7 cm thick in cabinet; 11.4 cm in the door. | non-CFC foamed-in-place polyurethane insulation in the cabinet; 12.7 cm thick in cabinet; 11.4 cm in the door. |
| Temperature control | Microprocessor Temperature Control System | Microprocessor Temperature Control System | Patented refrigerated system improves temperature control for more consistent temperature cycling | Patented refrigerated system improves temperature control for more consistent temperature cycling |
| Air filter | Air filter front-mounted easily accessed | Air filter front-mounted easily accessed | Convenient hinged air filter grill allows easy access for inspection cleaning and/or changing. | Convenient hinged air filter grill allows easy access for inspection cleaning and/or changing. |
| Access port | “Two pass-through ports 3/4”“ 20mm diameter” | “Two access ports ; pass-through ports 3/4”“ 20mm diameter (pour mettre une sonde externe et un pour mettre le systeme backup ln2 ou co2)” | Unknown | Unknown |
| Battery back up | Battery back-up system activate alarms and displays temperature | Battery back-up system activate alarms and displays temperature | Battery back-up system is standard | Battery back-up system is standard |
| Refrigerant | Non-CFC Non-HCFC | Non-CFC Non-HCFC | non-CFC refrigerants | non-CFC refrigerants |
| Refrigeration | cascade refrigeration: Hermetically-sealed two-stage casdace system | cascade refrigeration: Hermetically-sealed two-stage casdace system | cascade refrigeration: | cascade refrigeration: |
| Temperature range | From +32 down to -86 in 1C increment | From +32 down to -86 in 1C increment | range -50 to -86 | range -50 to -86 |
| Handle | Molded handle with removable lock. One handed operation easy to open. Can be reopened as frequent as desired due to vent | Molded handle with removable lock. One handed operation easy to open. Can be reopened as frequent as desired due to vent | New ergonomically designed door latch/handle | New ergonomically designed door latch/handle |
| Lock | Removable keyed lock | Removable keyed lock | Locakble | Locakble |
| Air circulation | Requires just one fan. | Requires just one fan. | front-to-back air circulation system | front-to-back air circulation system |
| Voltage stabilizer or compensator | Internal voltage stabilizer optional | OPTIONAL | Automatic Voltage Compensator | Automatic Voltage Compensator |
| Compressor | Low-noise heavy duty commercially available | Low-noise heavy duty commercially available Embraco | Leading compressors 1 HP (horse power) by Copland. | Leading compressors 1 HP (horse power) by Copland. |
| Exterior | 18 gauge steel 1.2 mm thick. Powder coated scratch and rust resistant. | 18 gauge steel 1.2 mm thick. Powder coated scratch and rust resistant. | Heavy gauge cold-rolled steel cabinets with powder coat paint finish. Uniform exterior surface resists chipping and rust | Heavy gauge cold-rolled steel cabinets with powder coat paint finish. Uniform exterior surface resists chipping and rust |
| Outer door | One outer door | One outer door | Two outer doors (double doors model) | One outer door |
| Outer door sealing | Insulated with high-efficiency silicone seals. | Insulated with high-efficiency silicone seals. | Triplepoint silicone gasket with one bulb and two feathered edges | Triplepoint silicone gasket with one bulb and two feathered edges |
| Outer door hinges | Heavy-duty Epoxy coated steel door hinges ensure proper alignment. | Heavy-duty Epoxy coated steel door hinges ensure proper alignment. | Heavy-duty stainless steel door hinges ensure proper alignment | Heavy-duty stainless steel door hinges ensure proper alignment |
| Outer door latch | Molded handle with removable lock. One handed operation easy to open. Can be reopened as frequent as desired due to vent | cam-action reverse cam-action for easy one-handed opening | new latch/handle design ensure a snug door seal | new latch/handle design ensure a snug door seal |
| Pressure release | Heated Vent with spring-assisted plunger to break icing prevents vacuum formation allows to re-open door quickly | Heated Vent with spring-assisted plunger to break icing prevents vacuum formation allows to re-open door quickly | Vacuum relief port allows pressure to equalize quickly | Vacuum relief port allows pressure to equalize quickly |
| Compartment | Three compartment with two adjustable-height stainless-steel shelves. | Five compartment with four adjustable-height stainless-steel shelves. |
stainless steel shelves |Four interior compartment doors complete with sliding latches; three fully adjustable solid stainless steel shelves |
| Inner doors | Three inner doors insulated and gasketed with high quality seals. Push-oull latch. | Five inner doors insulated and gasketed with high quality seals. Push-oull latch. | four inner doors | four inner doors |
|---|---|---|---|---|
| Interior | Stainless-steel interior polished 304L | Stainless-steel interior polished 304L | Stainless steel | Stainless steel |
| Noise level (Decibel) | 59 db | 61.8 db | Acoustical mufflers designed into the base and sound absorbing foam reduce noise level 58 db | Acoustical mufflers designed into the base and sound absorbing foam reduce noise level 58 db |
| Casters | Heavy-duty lockable casters with leveling feet | Heavy-duty lockable casters with leveling feet | lockable casters | lockable casters |
| “Max vial (2”“ boxes) capacity” | 50400 | 48000 | 38000 | 44000 |
| Racks per freezer | 18 | 30 | 10+10 | 10+10 |
| Electrical requirement | 208/230V 60 Hz | 120V ou 208/230V 60hz | 120V 50/60 Hz 16/20 (P2) | 120V 50/60Hz 1P |
| Exterior size | 195mm H X 102.5mm W X 86.7mm D | 1958 mm H X 1125 mm W X 871 mm D | 1976 x 1036 x 940 | 1976 x 1036 x 940 ; 5-20P |
| Internal size | 1355mm H x 865mmW x 615mm D | 1355mm H x 865 mmW x 615mm D | 1308 x 777 x 643 | 1308 x 777 x 643 |
| Shipping weight | 315 kg | 315 kg | 408.2 kg | 408.2 kg |
| Heat release (dégagement de chaleur) | 2559.10 btu/hr | 750 Watts or 2560 Btu/h | Unknown | Unknown |
| Power consumption kilowatts per 24 hours | 16.4 (a t208V) 15.8 (at 220V) | 14.9 | probably 18 | probably 18 |
| Pull down time (from 20 C to -80) | Unknown | 5.3 hours | Unknown | Unknown |
| Warm up time (from -80 to -50) | Unknown | Unknown | approx 200 hours | approx 200 hours |
| BTU absorption per hou | Unknown | Unknown | 450 par heure | 450 par heure |
| Warranty | 5 year on all componants parts and labour | 5 year on all componants parts and labour | 1 year warranty on all componants parts and labour | 1 year warranty on all componants parts and labour |
| Backup system | Optional CO2 and LN2 safety back-up systems | Optional CO2 and LN2 safety back-up systems | Optional CO2 and LN2 safety back-up systems | Optional CO2 and LN2 safety back-up systems |
| Data logger | remote Accense data logger optionnal | remote Accense data logger optionnal | Optional digital datalogger or Sensaphone | Optional digital datalogger or Sensaphone |
| Listing and certifications | CE listed cUL listed meets WEEE directives cUL also meets CSA | CE listed cUL listed meets WEEE directives cUL also meets CSA | CSA approved; cUL | CSA approved; cUL |
