Overview

The ultimate protection for your samples is ensured by placing the cooling coils inside the shelves to provide the most efficient heat extraction. No reliance on air convection to transfer energy to the walls of the freezer but transfer by conduction with DirectFREEZE™.

When the DF series are used according to instructions, occasionally wiping away the ‘snow’, no ice will form on the door, maintaining efficient cooling.

The chamber of the DF series is designed around the sizes of the most commonly used cryoboxes that account for over 80% of all usage. This means that the maximum numbers of samples are stored in the minimum footprint.

The DF series Ultra Low Temperature Freezers are powered by N-SmArt™ which has internal memory storing temperatures records up to ten years with one hour intervals as digitally and graphically. By means of NuveCloser™ software, The DF series can be controlled via internet. Sample safety is given top priority with audible and visual alarm system and optional NuveWarn™ remote alarm system, plus an optional AlerText™ text message to multiple mobile phones. Sending e-mail up to five e-mail addresses in case of any failure is offered as standard Alarms are independently powered by a permanently recharged battery. The units can be placed in corridors as the door, power switch and optional chart recorder are all key lock protected.

• Maximum information with highly visible 4,3’’ colorful LCD display
• Massive data storage with internal memory that stores the records up to ten years with one hour intervals as digitally and graphically
• Ethernet port for remote access through internet
• Optional NuveCloser™ software to access the operating parameters, failure history, memory and other technical parameters
• Four independent compartments with insulated doors for decreasing air entry
• Compartment dimensions match commonly used cryoboxes
• Washable air filter for simple maintenance and top performance
• Perfect air tightness with soft gasket
• Heated contact surface of gasket to virtually eliminate icing-up.
• Chamber made of stainless steel for longer life and shelves made of aluminum for faster heat transfer
• Epoxy-polyester powder coated stainless steel outer body
• Foamed-in-place high density polyurethane insulation
• Door handle with key lock
• Key operated mains power switch to protect your samples
• Audible and visual alarm system
• Alarm system fed by a permanently recharged battery
• Display of actual temperature even at power failure
• Standard remote and central alarm ports
• Optional battery-operated 7- day chart recorder
• Optional AlerText™ SMS alarm system for ultimate security
• Optional NuveWarn™ remote alarm system
• Optional CO₂ back-up system to extend protection in case of failure
• Equipped with Wi-Fi connection for N-Mobile™
   

  Specifications

  Model Nos.	DF 290	DF 490	DF 590
  Capacity (lt.)	261	461	560
  Minimum Temperature	-86 °C*
  Control System	Programmable Microprocessor N-Smart™
  Data Memory	10 years
  Safety System	Lockable ON-OFF Switch
  Temperature Display	4,3” Colourful TFT LCD display (Unaffected by power failure)
  Temperature Set Range	-45/-90°C
  Temperature Limit	-55 / -86°C
  Temperature Reading and Setting Sensitivity	1°C
  Temperature Sensor	PT -100
  Cooling System	DirectFREEZE™ direct cooling
  Temperature Alarm Range	Set Point +5°C/+25°C
  Power Failure Alarm	Audible and visual
  Door Open Alarm	Audible and visual
  Alarm Feeding System	12 hour battery with automatic charging
  Independent Cell / Inner insulation door (pcs)	3/3	4/4	4/4
  Noise Level	<65>
  Isolation ( CFC free)	High density injected polyurethane (130 mm)
  Gasket Structure	Heated sealing surface
  Refrigerant gas	R507a-R 508b
  Circular temperature recorder	Optional
  Central Alarm Output	Standard
  Remote Alarm Output	Standard
  Internal Surface Material	Stainless Steel
  External Surface Material	Electrostatic powder coated stainless steel sheet
  Wheel System	4 wheel, 2 fixation foot
  Power Supply	1600
  Power Ratings	230 V - 50 Hz
  Internal Dimensions (W x D x H)	420 x 630 x 995	555 x 630 x 1320	555 x 770 x 1320
  External Dimensions (W x D x H)	680 x 975 x 1715	820 x 975 x 2035	820 x 1120 x 2035

   

  Accessories

  FACTORY FITTED OPTIONS
  DF XXX Y	Weekly temperature chart recorder 0ºC / -100ºC	Each
  OPTIONS		Each
  A 08 191	AlerText™ GSM alarm module	Each
  K 13 009	NuveWarn™ remote alarm system with 10 m cable	Each
  A 08 195	NuveCloser™ software for PC (operates through internet)	Each
  A 08 231	NuveCloser™ multi software (connection up to 15 devices)	Each
  ACCESSORIES		Each
  A 08 135	CO2 back up unit	Each
  A 08 138	PP Cryobox 52X133X133 mm capacity 9x9 tubes	Each
  A 08 165	PP Cryobox 75X133X133 mm capacity 9x9 tubes	Each
  A 08 171	Cryobox 137x137x50 mm	Each
  A 08 172	10x10 Divider for up to Ø 12 mm tubes. Divider height: 30 mm	Each
  A 08 173	9x9 Divider for up to Ø 13,6 mm tubes. Divider height: 30 mm	Each
  A 08 160	Diagram paper for chart recorder 0ºC / -100ºC (Pack of 100)	Each
  A 08 070	Spare pen for chart recorder	Each