Meling Biomedical
DW-YL270 Biomedical Freezer
DW-YL270 Biomedical Freezer
- 270 L (9.53 cu. ft.)
- −10°C to −25°C
- Upright
UL/cUL listed for the United States and Canada. CE marked.
The Meling Biomedical DW-YL270 provides 270 L (9.53 cu. ft.) of frozen storage within an upright cabinet. Its −10°C to −25°C temperature range, microprocessor controller, temperature logging, and multiple alarm functions support temperature-controlled storage in laboratory and biomedical environments.
Seven ABS drawers help organize stored materials. The cabinet measures 700 × 640 × 1,792 mm (W × D × H) and features a foam-insulated door, safety lock, and spray-coated aluminum interior.
Certifications
- UL/cUL listed for the United States and Canada
- CE marked
Temperature Control and Refrigeration
The DW-YL270 combines a microprocessor temperature controller with a digital display that shows temperature in 0.1°C increments. Its refrigeration system uses direct cooling, manual defrosting, and R600a hydrocarbon refrigerant.
Manufacturer internal testing reports the following typical performance:
- Temperature fluctuation: 1.1°C
- Pull-down time to −25°C: 1.9 hours
- Temperature recovery after a one-minute door opening: 0.5 hours, equivalent to 30 minutes
Typical freezer data based on internal testing with freezer set point at -23°C and ambient temperature at 22°C.
Temperature Logging and Monitoring
The built-in data logger records temperature every 10 minutes and stores up to 100,000 temperature records. Recorded data can be exported through the USB port.
An RS485 interface and remote alarm contact provide additional connection options. The freezer also includes a backup battery and one 25 mm-diameter access port.
Alarm Functions
The DW-YL270 provides alarms for:
- High and low storage temperatures
- High ambient temperature
- Power failure
- Low battery
- Data logger failure
- Sensor error
- Door ajar
- Data communication failure
Cabinet Features
- Seven ABS storage drawers
- Foam-insulated door
- Safety lock
- Spray-coated aluminum interior
- PCM exterior
- One 25 mm-diameter access port
- Circuit breaker for electrical protection
- Two casters and two levelling feet
Electrical Specifications
The manufacturer’s brochure lists the following paired power supply and rated current values:
| Power supply (V/Hz) | Rated current (A) |
|---|---|
| 220–230 V / 50 Hz | 1.53 A |
| 220–240 V / 60 Hz | 1.05 A |
| 110 V / 60 Hz | 2.51 A |
Main Specifications
| Specification | DW-YL270 |
|---|---|
| Capacity | 270 L / 9.53 cu. ft. |
| Temperature range | −10°C to −25°C |
| Ambient temperature range | 16°C to 32°C |
| Cooling performance listed in brochure | −25°C |
| Pull-down time to −25°C | 1.9 hours |
| Climate class | N |
| Controller | Microprocessor |
| Display | Digital, with 0.1°C display increments |
| Cooling method | Direct cooling |
| Defrost mode | Manual |
| Number of compressors | 1 |
| Refrigerant | R600a |
| Insulation thickness, brochure notation (mm) | D: 90; L/R: 100; B: 100 |
| Exterior material | PCM |
| Interior material | Sprayed aluminum plate |
| Storage drawers | 7, ABS |
| Door | Foam-insulated |
| External dimensions, W × D × H | 700 × 640 × 1,792 mm |
| Internal dimensions, W × D × H | 500 × 460 × 1,235 mm |
| Package dimensions, W × D × H | 835 × 775 × 1,910 mm |
| Net weight | 96 kg |
| Gross weight | 113 kg |
| Access port | 1, diameter 25 mm |
| Mobility | 2 casters and 2 levelling feet |
| Temperature recording interval | Every 10 minutes |
| Data logging capacity | Up to 100,000 records |
| Data export | USB |
| Interfaces | RS485 and remote alarm contact |
| Backup battery | Included |
| Certifications and markings | UL/cUL listed; CE marked |
