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Universal oven UN55Plus

Standard delivery Universal oven

The universally applicable lab oven U is Memmert’s classic appliance for temperature control in science, research and material tests in industry. The technologically perfected masterpiece made of high-quality, hygienic, easy-to-clean stainless steel leaves nothing to be desired in terms of ventilation and control technology, overtemperature protection and precisely tuned heating technology.

On this page, you can find all the essential technical data on the universal Memmert lab 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 [email protected].

Working temperature range

at least 5 (UN/UNplus/UNm/UNmplus) or 10 (UF/UFplus/UFm/UFmplus) above ambient temperature to +300 °C

Setting accuracy temperature

up to 99.9 °C: 0.1 / from 100 °C: 0.5

Setting temperature range

+20 to +300°C

Temperature sensor

2 Pt100 sensors DIN Class A in 4-wire-circuit for mutual monitoring, taking over functions in case of an error

ControlCOCKPIT

TwinDISPLAY. Adaptive multifunctional digital PID-microprocessor controller with 2 high-definition TFT-colour displays.

Language setting

German, English, Spanish, French, Polish, Czech, Hungarian

Timer

Digital backwards counter with target time setting, adjustable from 1 minute to 99 days

Function HeatBALANCE

adapting the distribution of the heating performance of the upper and lower heating circuit from -50 % to +50 %

Function SetpointWAIT

the process time does not start until the set temperature is reached

Calibration

three freely selectable temperature values

adjustable parameters

temperature (Celsius or Fahrenheit), air flap position, programme time, time zones, summertime/wintertime

Convection

natural convection

Fresh air

Admixture of pre-heated fresh air by electronically adjustable air flap

Vent

vent connection with restrictor flap

Documentation

programme stored in case of power failure

Programming

AtmoCONTROL software on a USB stick for programming, managing and transferring programmes via Ethernet interface or USB port

Temperature control

mechanical temperature limiter TB, protection class 1 according to DIN 12880 to switch off the heating approx. 20°C above nominal temperature

Temperature control

overtemperature monitor TWW, protection class 3.1 or adjustable temperature limiter TWB, protection class 2, selectable on display

AutoSAFETY

additionally integrated over- and undertemperature monitor "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

Alarm

visual and acoustic

Door

fully insulated stainless steel door with 2-point locking (compression door lock)

Internals

1 stainless steel grid(s), electropolished

Works calibration certificate

Calibration at +160°C

Interior

easy-to-clean interior,made of stainless steel, reinforced by deep drawn ribbing with integrated and protected large-area heating on four sides

Volume

53 l

Dimensions

w_(A) x h_(B) x d_(C): 400 x 400 x 330 mm

Max. number of internals

4

Max. loading of chamber

80 kg

Max. loading per internal

20 kg

Dimensions

w_(D) x h_(E) x d_(F): 585 x 784 x 514 mm (d +56mm door handle)

Housing

rear zinc-plated steel

Voltage Electrical load

230 V, 50/60 Hz 
approx. 2000 W

Voltage Electrical load

115 V, 50/60 Hz 
approx. 1700 W

Set Up

The distance between the wall and the rear of the appliance must be at least 15 cm. The clearance from the ceiling must not be less than 20 cm and the side clearance from walls or nearby appliances must not be less than 5 cm.

Altitude of installation

max. 2,000 m above sea level

Ambient temperature

+5 °C to +40 °C

Humidity rh

max. 80 %, non-condensing

Overvoltage category

II

Pollution degree

2

Transport information

Customs tariff number

Country of origin

Federal Republic of Germany

WEEE-Reg.-No.

Dimensions approx incl. carton

w x h x d: 730 x 950 x 670 mm

Net weight

approx. 57 kg

Gross weight carton

approx. 76 kg