PHCbi MDF-DU702VHS1-PJ 729 L Ultra-Low Temperature Freezer, -85 °C, 100 V

The PHCbi MDF-DU702VHS1-PJ is a 729 L upright ultra-low temperature freezer for long-term preservation of biological materials, research samples, clinical specimens, and biotechnology inventory. The freezer provides cooling performance down to -85 °C using a cascade refrigeration system and operates from a single-phase 100 V, 50/60 Hz supply.

Key specifications

• Effective capacity: 729 L
• Temperature control range: -85 °C to -50 °C
• Cooling performance: -85 °C at 30 °C ambient temperature, no load
• Refrigeration: Cascade circuit with natural convection cooling
• Compressor rated output: 750 W high stage and 750 W low stage
• Refrigerants: Non-fluorocarbon HC refrigerant in both refrigeration stages
• Control system: Microcomputer-controlled operation
• Display: LCD touchscreen
• Power consumption: 530 W at 50 Hz / 540 W at 60 Hz
• Power capacity: 15 A at 50 Hz / 15 A at 60 Hz
• Maximum heat rejection: 3672 kJ/h at 50 Hz / 3600 kJ/h at 60 Hz
• Power supply: Single-phase 100 V, 50/60 Hz

Construction and storage

• External dimensions: W1030 × D882 × H1993 mm
• Internal dimensions: W870 × D600 × H1400 mm
• Painted-steel exterior and interior
• One painted-steel external door with an integrated cylinder lock
• Two vertical inner doors
• Three stainless-steel shelves rated for 50 kg per shelf
• Rigid polyurethane foam insulation with a 20 mm VIP PLUS vacuum insulation panel
• Three measurement ports, each Φ17 mm
• One automatic opening port and one manual opening port
• Four casters with two leveling bolts
• Product weight: 279 kg

Monitoring and safety functions

• High-temperature alarm adjustable from setpoint +5 °C to +40 °C, with an initial setting of +10 °C
• Low-temperature alarm adjustable from setpoint -5 °C to -40 °C, with an initial setting of -10 °C
• Door alarm with a 2-minute delay, adjustable from 0 to 15 minutes
• Filter status alarm without buzzer or remote alarm output
• Remote alarm contact capacity: DC30 V, 2 A
• STATUS monitoring for abnormal ambient temperature and overload operation
• Self-diagnostics for sensor faults
• Power failure alarm and battery alarm
• Nonvolatile memory backup

This PHCbi ULT freezer is suitable for biobanking, molecular biology, cell biology, pharmaceutical research, clinical diagnostics, bioprocessing, gene editing workflows, synthetic biology research, and long-term sample storage. The unit is used and has dents and scratches; it is offered as-is with no accessories included.