Cooled vacuum oven VO400cool

For gentle drying of bacteria and starter cultures or simulation of intercontinental flights.


Cooled vacuum oven VO400cool

Standard delivery Cooled vacuum oven

The direct contact between the load and the heatable thermoshelves in the chamber of the vacuum oven ensures rapid and uniform temperature control of food, cosmetics, watches, books, PCBs or injection moulds, without the loss of heat.

On this page, you can find all the essential technical data on our vacuum drying oven. Our customer relations team will be pleased to help if you want further information. If you should require a customised special solution, please contact our technical specialists at



Temperature range from +5°C up to +90°C
resolution of display for actual values 0.1°C
resolution of display for setpoint values 0,1°C
resolution of display/setting accuracy 0.5°C

Control of standard components

Temperature temperature measured through 4-wire Pt100 sensor
Vacuum digital electronic pressure control through solenoid valves
Vacuum setting accuracy 1 mbar
Vacuum adjustment range from 5 mbar to 1100 mbar - digital (LED)
Vacuum rapid air intake for door opening (door is blocked under vacuum ) - programme reactivation at stored values
Vacuum vacuum drying process (vacuum cycles) is continued after power failure
Vacuum one programmable, digitally controlled inlet for air
Controller digital display of all set parameters, such as temperature, weekdays, time, pressure, programe status and set-up values
Controller LED-symbol for thermoshelf in operation
Controller digital display of actual temperature
Timer integrated timer for tempering and pressure (vacum) profiles of up to 40 ramps, parameters time, pressure and temperature (setpoint dependent) individually adjustable for each segment from 1 min. up to 99 hrs

Control technology

Calibration three freely selectable temperature and pressure values


Interface USB-interface incl. Memmert software "Celsius" for programming and documentation of temperature and pressure
Documentation integrated ring memory as data logger for GLP-conforming long-term documentation of all relevant parameters - 1024 kB
Documentation programme stored in case of power failure
Programming chip-card control incl. 1 MEMoryCard XL with 32 kB storage capacity (max. 40 ramps)
Programming multifunctional programming via menu on 8-digit alphanumeric digital display (language to be chosen via set-up)


Temperature control automatic overtemperature protection following the setpoint-value and switching the heating off at about 3°C above setpoint value in case of failure
Temperature control additional digitally adjustable, electronic micro-processor overtemperature monitor TWW, protection class 3.3 - (max-value for overtemperature, min-value for undertemperature)
Temperature control mechanical temperature limiter TB, protection class 1 according to DIN 12880 to switch off the heating approx. 20°C above nominal temperature
AutoSAFETY additionally integrated over- and undertemperature protection "ASF", automatically following the setpoint value at a preset tolerance range, alarm in case of over- or undertemperature, heating is switched off in case of overtemperature
Autodiagnostic system for fault analysis

Heating concept

VO direct heating fuzzy-supported MLC (Multi-Level-Controlling) microprocessor controller adapting its performance to the volume (local temperature sensing)

Standard equipment

Scope of delivery incl. works calibration certificate for +50°C/20 mbar
Door full-sight glass door, inside spring-loaded, 15 mm thick glazed panel in safety glass, outside with anti-splitter screen
Interior hermetically welded stainless steel interior of extremely corrosion-resistant stainless steel, material 1.4404
Interior additional interior mountings of stainless steel, material 1.4404. consisting of mounting at the sides with guide bars for thermoshelves and on top (diffusor) to avoid turbulences when aerating
Interior all tubings made of stainless steel, material no. 1.4571
Internals 1 thermoshelf of aluminim, material 3.3547 (ASTM B209) with integrated large-area heating and cooling, in lowest position (cannot be removed)

Stainless steel interior

Volume 49 l
Dimensions W x H x D in mm w(A) x h(B) x d(C): 385 x 385 x 330 mm
Max. number of internals 0
Max. loading of chamber 20 kg
Max. loading per internal 0 kg

Textured stainless steel casing

Dimensions w(D) x h(E) x d(F): 550 x 680 x 730 mm
Housing rear zinc-plated steel

Electrical data

Voltage Electrical load 230 V, 50/60 Hz
approx. 500 W

Packing/shipping data

the appliances must be transported upright
Customs tariff number 8419 8998
Country of origin Federal Republic of Germany
WEEE-Reg.-No. DE 66812464
Dimensions approx incl. carton B x H x T: 830 x 1050 x 800 mm
Net weight approx. 89 kg
Gross weight carton approx. 112 kg

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