Memmert Universal Oven Laboratorium UN750plus

Memmert Universal Oven UN750plus

The Memmert UN750plus Universal Laboratory Oven is a high-performance thermal chamber engineered for precise drying, heating, ageing, burn-in, and hardening processes in scientific, industrial, and quality control environments. With natural convection heating, advanced TwinDISPLAY control, and comprehensive safety features, this 749-liter oven is an ideal solution for demanding laboratory tasks requiring reliability, uniformity, and flexibility.

Features

• TwinDISPLAY with two high-definition TFT screens for clear parameter monitoring and advanced control

• HeatBALANCE function allows flexible distribution of heating power between top and bottom heating circuits

• Natural convection system ensures gentle, uniform heating ideal for sensitive materials

• Dual Pt100 temperature sensors for mutual monitoring and backup, enhancing reliability

• AutoSAFETY system with visual/acoustic alarms and automatic shutdown in case of overtemperature or fault

• AtmoCONTROL software (included via USB) for intuitive programming and secure data handling via Ethernet or USB

Applications

• Research laboratories: Thermal conditioning of biological, chemical, or material samples

• Industrial QA/QC: Uniform drying and curing processes in electronics, polymers, coatings, and adhesives

• Pharmaceutical sector: Controlled environment for compound testing and product stability studies

• Electronics: Burn-in testing of sensitive components in static environments

• Education and training: Reliable oven for academic and technical institutions conducting heat-based experiments

• Material development: Ageing and performance tests of composite materials, plastics, and ceramics

Specifications

• Temperature range: +20 °C to +300 °C (min. 5 °C above ambient)

• Accuracy: 0.1 °C (up to 99.9 °C), 0.5 °C (from 100 °C)

• Sensors: 2 Pt100 sensors (Class A, 4-wire circuit)

• Internal volume: 749 liters

• Internal dimensions (W x H x D): 1040 x 1200 x 600 mm

• Max chamber load: 300 kg

• Max load per shelf: 30 kg

• Number of internals: Up to 14 (2 included)

Technical Highlights

• Ventilation: Natural convection with adjustable pre-heated fresh air and restrictor vent flap

• Control system: PID microprocessor with TwinDISPLAY for adaptive control

• Timer: 1 min to 99 days, countdown mode

• SetpointWAIT: Timer starts once target temperature is reached

• Calibration: 3 freely selectable temperature points

• Adjustable parameters: Temperature, air flap position, program time, time zone, seasonal time settings

Safety and Build

• Safety systems:

  • Mechanical limiter TB (DIN 12880 Class 1)

  • Electronic overtemperature monitor TWW (Class 3.1) or TWB (Class 2)

  • ASF over-/undertemperature protection

  • Autodiagnostic system with fault alerts

• Construction:

  • Stainless steel chamber with easy-to-clean, electropolished surfaces

  • Reinforced with ribbed walls and large-area heating

  • Fully insulated stainless steel door with 2-point locking

  • Mounted on lockable castors for mobility

Electrical and Installation

• Electrical load: 400 V and 3x 230 V (without neutral), 50/60 Hz, approx. 7000 W

• External dimensions (W x H x D): 1224 x 1720 x 784 mm (+56 mm for handle)

• Ambient conditions:

  • Temperature: +5 °C to +40 °C

  • Humidity: max. 80%, non-condensing

  • Installation altitude: up to 2,000 m

• Installation clearances:

  • Rear: 15 cm

  • Top: 20 cm

  • Sides: 5 cm