Deep freezer (- 50 C)
Deep freezerGENERAL OVER VIEW

Thalheimer has innovated the new technology and production of Deep, Ultra Low Temperature, Freezer and Shock freezer down to – 85ºC in cooperation with specialist in the field s of electronics and thermodynamics.
All units are complied with UNI EN 61010-1/A2 (CEI 66-5), CEI EN 61326-1, R egulations on safety for laboratory equipment and ISO 9001:2008 certified manufacturer.
Different models and sizes have been pre-designed and considered as standard models offered by Thalheimer.
We have three models within the range of Deep and Ultra Low Temperature Freezers: horizontal, vertical and under counter units. Thalheimer produce different sizes from the above models and those are in the range of 85L for the under counter till 800 L which is considered as the biggest standard model.
For Shock freezer, Thalheimer offers very wide range of models starting from 100 Lit till 800 Lit for different applications of laboratory and Hospital/Medical use as well as for Research and Development institutes and Pharmaceutical industries.
Thalheimer always offer custom made design with different sizes and model based on our client’s requirement and expectation.
In general the time required to cool down the inner chamber of the ULT freezer from ambient temperatures to the selected set temperature of -80°C to -85°C is mainly depending on the
type of insulation, the efficiency of the compressor system as well as the installed metal shelves within the freezer. Thalheimer’s unit CRYO Series and Shock freezers are able to cool down within 2.5 to 3.5 hours.

STRUCTURE
– External cabinet made of zinc-plated and/or enameled steel sheets, o r, upon request, SI 304 stainless steel satin finish.
– Insulation in non-CFC, non-HCFC foamed polyurethane
– Internal casing in AISI 304 (or AISI 316 upon r equest) stainless steel, with polished exter nal BA finish for maximum resistance and cleanliness; LIFETIME WARRANTY ON STEEL PARTS
– Triple-step seal in silicone rubber for greatest prevention against air loss and ice formation; gaskets with almost unlimited durability.
– Gasket heating by means of the r efrigerant pipes on the overheated-steam side; the safest solution against ice formation, more reliable and with greater energy saving (in fact, it does not use additional sources of heat like electric resistances, etc.)
– Complete reheating compensation valve to equalize inter nal and external pressure after opening and closing the door: greatly facilitates being able to open the door after it has been opened not long ago.
– Four internal stainless steel shelves, standard in vertical models
– Insulated counter doors (in vertical models) with 20-mm. poly urethane foam, to minimize cold loss when the external door is opened;
– Insulation panels (in horizontal models) with 20-mm. polyur ethane foam, to minimize cold loss when the external door is opened;
– Highly ergonomic closing handle (in vertical models) to facilitate closi ng: just one hand and minimum force applied
– Locking handle with self-raising hinges (in horizontal models ) for maximum ease when closing and maximum operator safety.
– Lock and key for all locks
– Pivoting wheels for maximum freezer maneuverability inside the laboratory
– Insulation with CFC- and HCFC-free polyurethane resin foamed on site, with an average thickness above 140 mm
– Lock with transponder/badge available (optional); the PK (Per sonal Key) device comes complete with badge reader, management electronics, stabilized power supply at 12 Vdc 3 A and microelectronic security pistons. It is integrated with the closing system.

Techinical features:
INTERNAL FRAME: AISI 304 stainless steel
(AISI 316 on request) with polished external BA
finish for best resistance and cleanliness;
EXTERNAL FRAME: zinc-plated and prepainted
steel sheet (AISI 304 stainless steel on r equest)
satin finish;
THERMAL INSULATION: non-CFC, non-HCFC
PU foam, thickness 140 mm;
SEALING GASKET: Triple silicone rubber
(prevention against air leaks);
GASKET HEATING: frost formation prevention
by means of the “hot gas” recirculation coils;
high reliability and energy saving (it does not
use additional power by electric heaters);
COMPENSATION VALVE: for internal/external
pressure compensation, to facilitate door
open/close;
REFRIGERATION: The cooling system is completely sealed, using single with one hermetic compressor noise (<60 dB (A)), high cooling capacity, equipped with magneto-thermal protection and maximum pressure of condensation, the surfaces of aircooled condensers are very large with running tubeless heat exchangers to meet the most severe environmental conditions and work. The expansion of refrigerants is obtained through capillary tubes and takes place in fixed exchangers. The refrigerants used are non-toxic, non-flammable, nonexplosive and ecological (maximum respect for the environment) HC free, CFC free, HCFC free (ODP = 0 Ozone Depletion POTENTIAL).

Options:

  • Internal AISI 316 surfaces
  • External AISI 304 o AISI 316 surfaces
  • Rack/Cak/COS
  • Additional shelves
  • Kit back up CO2 (24Vac/50Hz)
  • Kit back up LN2 (24Vac/50Hz)
  • Emergency plant CO2 (12Vac/25Hz)
  • with temperature independent regulator
  • Opening door by transponder personal key
  • Electrical key
  • Temperature recorder
  • Printer (Strip Chart)
  • Additional PT100 probe
  • GSM Port
  • Data logger wireless software/hardware
  • (temperature management Spy KW)
  • Voltage stabilizer ± 35V (±15%)
  • IQ/QQ/ecc.
  • Internal – external hole
VERTICAL MODELS NADEE-N Series NADEE-N 85-UC NADEE-N 125 NADEE-N 250 NADEE-N 350
External dimensions (W x D x H ) cm 97 x 58 x 78 cm 80 x 79 x 132 cm 80 x 79 x 188 cm 85 x 78 x 199
Internal dimensions (W x D x H ) cm 42 x 35 x 58 cm 50 x 45 x 54 cm 50 x 45 x 111 cm 60 x 45 x 128
Set Point -40°C -40°C -40°C -40°C
Working range -30°C -50°C -30°C -50°C -30°C -50°C -30°C -50°C
Capacity (litres) 85 125 250 351
Pre painted steel closed doors 1 1 1 1
Shelves/inner doors 2/1 2/2 4/4 4/4
Weight Kg 100 200 260 260
Internal surfaces standard AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet
External surfaces standard Prepainted steel Prepainted steel Prepainted steel Prepainted steel
Insulation thickness 130 mm 150 mm 140 mm 140 mm
Key Lock Yes Yes Yes Yes
4 wheels (2 with brake) Yes Yes Yes Yes
Controller (Touch panel) Yes Yes Yes Yes
N°2 PT100 probe (-40°C/-130°C Class A) Yes Yes Yes Yes
RS485, USB Port and SD Card Yes Yes Yes Yes
V.I.P. (vacuum insulation panel) Yes Yes Yes Yes
N.° inox drawers H 100 mm NO (Yes) 4 (Yes) 8 (Yes) 8
N.° inox drawers H 200 mm NO (Yes) 2 (Yes) 4 (Yes) 4
Water condenser NO NO Yes Yes
VERTICAL MODELS NADEE-N Series NADEE-N 500 NADEE-N 600 NADEE-N 700 NADEE-N 800
External dimensions (W x D x H ) cm 97 x 96 x 184 cm 106 x 90 x 199 cm 106 x 100 x 199 cm 110 x 103 x 199
Internal dimensions (W x D x H ) cm 70 x 65 x 111 cm 80 x 59 x 128 cm 80 x 69 x 128 cm 85 x 73 x 130
Set Point -40°C -40°C -40°C -40°C
Working range -30°C -50°C -30°C -50°C -30°C -50°C -30°C -50°C
Capacity (litres) 505 604 706 806
Pre painted steel closed doors 1 1 1 1
Shelves/inner doors 4/4 4/4 4/4 4/4
Weight Kg 300 300 310 400
Internal surfaces standard AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet
External surfaces standard Prepainted steel Prepainted steel Prepainted steel Prepainted steel
Insulation thickness 140 mm 140 mm 140 mm 140 mm
Key Lock Yes Yes Yes Yes
4 wheels (2 with brake) Yes Yes Yes Yes
Controller (Touch panel) Yes Yes Yes Yes
N°2 PT100 probe Yes Yes Yes Yes
RS485, USB Port and SD Card (Yes) 8 Yes Yes Yes
N.° inox drawers H 100 mm (Yes) 4 (Yes) 8 (Yes) 8 (Yes) 8
N.° inox drawers H 200 mm Yes (Yes) 4 (Yes) 4 (Yes) 4

VERTICAL MODELS NADEE-N Series NADEE-N 350-2D NADEE-N 500-2D NADEE-N600-2D NADEE-N 700-2D
External dimensions (W x D x H ) cm 97 x 80 x 199 cm 97 x 97 x 199 cm 106 x 100 x 199 cm110x103x199
Internal dimensions (W x D x H ) cm 72 x 46 x 109 cm 72 x 65 x 109 cm 82 x 69 x 109 cm 85 x 73 x 130
Set Point -40°C -40°C -40°C -40°C
Working range -30°C -50°C -30°C -50°C -30°C -50°C -30°C -50°C
Capacity (litres) 354 505 604 704
Pre painted steel closed doors 2 2 2 2
Shelves/inner doors 4/4 4/4 4/4 4/4
Weight Kg 290 320 330 450
Internal surfaces standard AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet
External surfaces standard Prepainted steel Prepainted steel Prepainted steel Prepainted steel
Insulation thickness 140 mm 140 mm 140 mm 140 mm
Key Lock Yes Yes Yes Yes
4 wheels (2 with brake) Yes Yes Yes Yes
Controller (Touch panel) Yes Yes Yes Yes
N°2 PT100 probe Yes Yes Yes Yes
RS485, USB Port and SD Card Yes Yes Yes Yes
N.° inox drawers H 100 mm (Yes) 8 (Yes) 8 (Yes) 8 (Yes) 8
N.° inox drawers H 200 mm (Yes) 4 (Yes) 4 (Yes) 4 (Yes) 4

HORIZONTAL MODELS NADEE-N Series NADEE-N 110/H NADEE-N 170/H NADEE-N 230/H
External dimensions (W x D x H ) cm 90 x 75 x 124 cm 90 X 75 X 124 cm 150 x 75 x 124
Internal dimensions (W x D x H ) cm 50 x 40 x 50 cm 63 X 48 X 55 cm 115 x 40 x 50
Set Point -40°C -40°C -40°C
Working range -30°C -50°C -30°C -50°C -30°C -50°C
Capacity (litres) 110 170 230
Pre painted steel closed doors 1 1 1
Shelves/inner doors
Weight Kg 130 140 290
Internal surfaces standard AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet
External surfaces standard Pre-painted steel Pre-painted steel Pre-painted steel
Insulation thickness 175 mm 140 mm 175 mm
Key Lock Yes Yes Yes
4 wheels (2 with brake) Yes Yes Yes
Controller (Touch panel) Yes Yes Yes
N°2 PT100 probe (-40°C/-130°C Class A) Yes Yes Yes
RS485, USB Port and SD Card Yes Yes Yes
Water condenser NO NO Yes
HORIZONTAL MODELS NADEE-N Series NADEE-N 330/H NADEE-N 480/H NADEE-N 700/H
External dimensions (W x D x H ) cm 150 x 75 x 124 cm 195 x 88 x 112 cm 256 X 86 X 117
Internal dimensions (W x D x H ) cm 124 x 49 x 55 cm 122 x 52 x 75 cm 180 X 50 X 78
Set Point -40°C -40°C -40°C
Working range -30°C -50°C -30°C -50°C -30°C -50°C
Capacity (litres) 330 480 702
Pre painted steel closed doors 1 1 1
Shelves/inner doors
Weight Kg 300 350 440
Internal surfaces standard AISI 304 stainless sheet AISI 304 stainless sheet AISI 304 stainless sheet
External surfaces standard Pre-painted steel Pre-painted steel Pre-painted steel
Insulation thickness 140 mm 140 mm 140 mm
Key Lock Yes Yes Yes
4 wheels (2 with brake) Yes Yes Yes
Controller (Touch panel) Yes Yes Yes
N°2 PT100 probe (-40°C/-130°C Class A) Yes Yes Yes
RS485, USB Port and SD Card Yes Yes Yes
Water condenser Yes Yes Yes

CONTROL SYSTEM

All our controllers (with touch panel), are developed, programed and produced in-house. Thalheimer Soft Engineering division which is a member of Thalheimer group of companies is specialized in electronic and program research, development and production of all PLCs and controllers.
All controllers are designed with a technology based on microprocessor ARM9, Dual Core, similar to those applied in smart-phones.
The system is designed to control, record, supervise with full traceability of all requested parameters and events. It features full connectivity to the environmental and very safe during the operational process with an easy access.
The system consist of 2 monitoring kit with two independent R TD Pt 100 Ω (class A) sensors; one for the regulation and one for the temperature alarm and for automatic recording of the temperature and the alarms; The recording is being done in real time for all functions which are being automatically recorded on the SD card and USB port.
The SD Card and USP port are located in the front panel near to the touch screen, and the user can easily download the required data of thermal recording as well as updating the software whenever needed.
The controller works with operative system Linux and it’s a true on – board computer. It has a graphic interface with touch screen TFT display The microprocessor has significant high capacity of memory RAM, with a frie ndly used interface having full access on reading and managing the operation by means of USB, SIM, Wi-Fi, Ethernet wired, and RS485 port with ModBus protocol.
Above all, the Wi-Fi connection makes the unit visible thr ough the LAN line of the hospital or of the industrial laboratory.
Using any PC work station that is connected in the same network where the freezer unit is linked, you can easily browse and get connected to the freezer control system. This can be accessed by typing the IP address of the unit which is a unique IP for each freezer. Moreover you can access the controller through the internet by accessing the static IP address of the institute network in which the controller of the freezer is connected any recording requirement are being designed and managed through our updated controller with which you can have the possibilities to scan bar codes for inventory purposes as well as detect and record the identification of the operator using the unit at each acti on. All data can be transferred from the controller to any PC using windows software.
The data recording system and software of our controller has been developed to be complied with most evolved standards as, GMP, JACIE, FACT etc.

ACCESS CONTROL / MAINTENANCE

The controller of our units has an access code. It is designed with the possibility to use an electronic key (alphanumerical code customized by the user) to put togethe r with an electrical lock for a controlled door opening, or as optional equipment, to use a badge or transponder (or finger pass, with the finger print storage).
The easily designed software management of the controller makes it very simple and friendly to the user with self-explanatory process and guidance.
All data in the controller can be safely accessed remotely through the IP address which enables the user to download all data related to the status of the unit, the authorized maintenance technician can also change or modify the parameters remotely.

ALARMS

The alarm system is managed totally with an independent microprocessor and electronic board.
Usually the user get visual and acoustic alarm during the following faults:
– Power failure
– Door opening for a long time, total opening time ar e all recorded in the memory
– High condenser pressure
– Low Battery
– Damaged probe
– Long working time of the compressors
– High condenser’s temperature
– Blocked / dirty condenser ventilation
– Low temperature / High temperature in the inner chamber
– In case of Shock freezer / alarm for product reching temperature

ENVIRONMENTAL ADAPTABILITY

The condenser ventilation system is being managed separately by means of a sensor; having such advance feature, it allows the condenser fan to change the mode of operation speed based on the ambient condition.

GSM MODULE

This is an optional feature which enables the alarm system to send trouble shooting SMS to a pre-defined mobile phone number. It is also possible to have dif ferent phone number for different levels of trouble shooting and messages.

 

BAR CODE READER

This is an optional feature which can be incorporated in the control system to scan a bar code of the product for inventory use.

 

ENERGY SAVING CONTROL

ECO MODE allows raising the temperature set during night.
ENERGEY SAVING MODE raise, automatically and for a temporarily period, the temp set point once the compressors usage has reached its pre-defined limit. This automatic activation of energy saving operation maintains the energy consumption and usage of the compressors to the minimum and in a most economical way. The set point will be re-set back automatically after a defined period of time so as the unit will work in a normal energy mode.
It has been calculated that we can save an energy consumption of 15% compared to the normal freezers working without the above features.
All our controllers are made to accept future updating in software as well as modification of its features to match and get complied to all standard and requirement in health sector.

Deep Freezer -50°C Models :
 
Model NADEE-N125:
For Detailed Description and Technical Specification Please Visit Pdf Cover NADEE-N125.PDF

 
Model NADEE-N250:
For Detailed Description and Technical Specification Please Visit Pdf Cover NADEE-N250.PDF

 
Model NADEE-N350:
For Detailed Description and Technical Specification Please Visit Pdf Cover NADEE-N350.PDF

 
Model NADEE-N500:
For Detailed Description and Technical Specification Please Visit Pdf Cover NADEE-N500.PDF

 
Model NADEE-N700:
For Detailed Description and Technical Specification Please Visit Pdf Cover NADEE-N700.PDF

 
Model NADEE-N800:
For Detailed Description and Technical Specification Please Visit Pdf Cover NADEE-N800.PDF

 

User Manual:
Deep freezer (- 50 C) User Manual

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