Sanyo MDF-U731M -30C Upright Biomedical Freezer
Temperature Range
-20°C to -30°C
Volume
24.3 cu. ft. (690L)
Defrost Method
Manual
Features
- Direct cooling system with full cold wall design for uniform temperature distribution
- High-capacity upright design accommodates large sample volumes efficiently
- Front-mounted microprocessor control panel with digital temperature display and calibration access
- Adjustable wire shelves provide flexible storage configurations for various container sizes
- Sturdy insulated steel cabinet construction enhances energy efficiency and durability
- Lockable door latch and balance hinge design for convenient and secure access
- Access ports allow for external monitoring or equipment integration
- Self-diagnostic function and breaker switch protect against electrical abnormalities
Built with durability and security in mind, the Sanyo MDF-U731M features a sturdy steel cabinet with superior insulation for energy-efficient operation and dependable thermal performance. The manual defrost system maintains constant chamber temperatures without introducing temporary fluctuations, making it well-suited for applications requiring strict stability, such as GMP-compliant processes or the preservation of highly temperature-sensitive materials. A front-mounted microprocessor control panel provides easy access to real-time monitoring, memory backup, and user calibration functions, while integrated safety features include high/low temperature alarms, power failure alerts, a breaker switch, and a remote alarm contact. The freezer’s lockable door, balance hinge, and adjustable wire shelving add convenience and security, while built-in casters and leveling feet ensure mobility and stability. With its advanced temperature control, reliable performance, and flexible storage configuration, the Sanyo MDF-U731M offers an efficient, long-lasting solution for laboratories that demand precision and sample integrity.
All of our equipment is fully tested to perform at factory specifications before being shipped.
INCLUDED:
The Sanyo MDF-U731M -30C Upright Biomedical Freezer includes:
The Sanyo MDF-U731M -30C Upright Biomedical Freezer includes:
- > Key
- > 4 x Shelves
- > NIST Calibration and Preventative Maintenance Report
- > Power Cord
- > Operator's Manual
- > Full 180 Day Parts and Labor Warranty
Sanyo MDF-U731M -30C Upright Biomedical Freezer Specifications
| Temperature Range | -20°C to -30°C |
| Volume | 24.3 cu. ft. (690L) |
| Refrigerant | R404A |
| Defrost Method | Manual |
| Internal Dimensions (H x D x W) | 25.6 x 27.6 x 59.8 in. (65 x 70 x 152 cm) |
| External Dimensions (H x D x W) | 30.3 x 32.7 x 77 in. (77 x 83 x 195.5 cm) |
| Weight | 335.1 lb. (152 kg.) |
| Electrical Requirements | 115V, 60Hz, 2.2A, 235W |
Recertification Inspection Protocol
- Inspect the display for pixel clarity and brightness, replacing any dim or dead pixels.
- Test all buttons for responsiveness, resistance, and durability; replace any that don’t meet standards.
- Check the door seal and lock for airtightness, replacing any compromised components.
- Run diagnostics on PCB test points for voltage and current accuracy, replacing faulty components.
- Verify compressor output and airflow, ensuring all internal fans function properly.
- Cross-check internal temperature probe accuracy with a NIST-traceable probe, recalibrating if needed.
- Inspect wiring for frays or tears, replacing compromised sections as necessary.
- Test the start capacitor's capacitance and replace if it’s outside the specified range.
- Replace all internal filters and thoroughly clean condenser fins for efficient heat dissipation.
- Verify the alarm battery holds a full charge and replace if there is any degradation.
- Operate the unit for 72 hours to confirm stable temperatures and operational consistency.
- Perform a final cosmetic check, repairing or touching up surfaces as needed for a professional appearance.
Technician Inspection and Recertification Checklist
The Following Checklist Is to Be Performed on All Incoming and Outgoing Equipment| Task | Completed? | Remarks? |
| Inspect display for pixel issues and replace if needed | Completed | |
| Test button functionality and replace any defective buttons | Completed | |
| Examine door seal and lock functionality; replace if compromised | Completed | |
| Conduct PCB test point diagnostics and replace as needed | Completed | |
| Verify compressor and internal fan functionality | Completed | |
| Confirm temperature probe accuracy with NIST-traceable probe | Completed | |
| Inspect all wiring for frays, tears, or breakages | Completed | |
| Test start capacitor capacitance range; replace if needed | Completed | |
| Replace all internal filters and clean condenser fins | Completed | |
| Test alarm battery for full functionality | Completed | |
| Run 72-hour test with data recorder to confirm stable temperatures | Completed | |
| Conduct cosmetic inspection and address any issues | Completed |
102 Tide Mill Road, Hampton NH 03842
customerservice@marshallscientific.com | (603) 601-8511 |
www.marshallscientific.com
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