Laboratory freezer MDF-DU703VHE-PE

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Overview
The MDF-DU703VHE-PE VIP SMART Ultra-Low Temperature Freezer provides energy-efficient sample storage with controlled access and reliable temperature performance. Internal volume 729 L; operating range -86°C to -40°C. Natural hydrocarbon refrigerants and inverter compressor technology improve efficiency, ambient tolerance and recovery after door openings.

Key features

• VIP SMART design with inverter-driven compressors and SMART control for temperature uniformity and reduced energy consumption.
• Natural hydrocarbon (HC) refrigerants combined with inverter compressors to limit energy use and heat output while maintaining cooling capacity.
• High-capacity storage: 729 L internal volume, up to 576 2-inch boxes; three shelves (max 50 kg per shelf).
• Door-mounted 10.1-inch high-resolution LCD touchscreen for monitoring and control; USB port for data export.
• Integrated access management with multiple authentication options and electric lock support.
• VAC insulation panels and rigid polyurethane foam to minimize heat ingress and maximise usable volume.

Energy-saving performance
Designed to lower operating costs for ULT storage. Typical energy consumption examples:

• 5.4 kWh/day at -80°C
• 4.4 kWh/day at -70°C

Natural refrigerants, inverter compressors and integrated electronics balance temperature performance with energy management.

Security control and monitoring

• Access logging: monitor and record user access and door-open durations.
• Four locking methods: Facial recognition (optional), Keypad, Proximity card / NFC (optional), Key.
• Electric lock supports password protection and optional biometric/NFC authentication.

Intuitive touchscreen monitoring
The 10.1-inch door-mounted LCD provides access to controls and performance data. Internal temperature logs can be displayed graphically and exported via USB.

Natural refrigerants
Uses hydrocarbon (HC) refrigerants with inverter technology to improve efficiency without compromising cooling performance, ambient tolerance or recovery speed after door openings.

High-capacity sample storage

• Internal volume: 729 L
• Capacity: up to 576 2-inch boxes
• Shelves: 3; max load 50 kg per shelf
• Rigid polyurethane foam insulation combined with Vacuum Insulation Panels (VIP)

Alarms and reliability

• Power failure alarm
• High-temperature alarm
• Low-temperature alarm
• Door-open monitoring
• Filter monitoring

Technical specifications

• External Dimensions (W x D x H): 1030 x 882 x 1988 mm
• Internal Dimensions (W x D x H): 870 x 600 x 1400 mm
• Volume: 729 liter
• Net Weight: 276 kg
• Capacity (Stainless Steel Racks 2” Box): 576
• Cooling Performance: -86 to -40 °C
• Temperature Setting Range: -90 to -40 °C
• Temperature Control Range: -86 to -40 °C
• Controller: Microcomputer control system
• Display: LCD Digital display (10.1-inch touchscreen)
• Temperature Sensor: Platinum resistance (Pt 1,000 Ω)
• Refrigeration System: Cascade
• Compressors: High stage side; Hermetic type, Output: 750 W · Low stage side; Hermetic type, Output: 750 W
• Refrigerant: HC (hydrocarbon)
• Insulation Material: Rigid polyurethane foamed-in-place + Vacuum insulation panel
• Exterior Material: Painted Steel
• Interior Material: Painted Steel
• Outer Doors/Lid: 1
• Outer Door Lock: Yes
• Inner Doors/Lid: 2
• Shelves: 3
• Max. Load - Per Shelf: 50 kg
• Vacuum Release Port: 1 (automatic)
• Access Port: 3 (position: back x1, bottom x2)
• Access Port Diameter: 17 mm
• Casters: 4 (2 leveling feet)
• Alarms: Power failure (V-B-M-R), High temperature (V-B-M-R), Low temperature (V-B-M-R), Filter (V-M), Door open (V-B-M)
• Power Supply: 220/230/240, 220/230 V
• Frequency: 50 / 60 Hz
• Noise Level: 52 dB (A)
• Interface - Modbus: MTR-MODB1-PW
• Interface - Analog: MTR-420MA-PW