Ultra Low Temperature Freezer NULF-700 provides a 778-liter storage capacity for storing large volumes of sensitive materials. It maintains a precise temperature range from -20°C to -40°C. This unit is built with high-performance vacuum insulation material on all six sides to ensure thermal efficiency. It offers two Ø25 mm access test ports for convenient connection of monitoring devices. Our freezer includes a digital display for clear and accurate temperature readings.
| Capacity |
778L |
| Temperature range |
-20 to -40°C |
| Ambient temperature range |
16 to 32°C |
| Cooling performance |
-40°C |
| Climate class |
N |
| Cooling method |
Direct cooling |
| Defrost mode |
Manual |
| Refrigerant |
R290 |
| No. Of shelves |
3 |
| No. Of compressors |
2 |
| Internal material |
Stainless steel |
| External material |
Cold-rolled steel sheet |
| Insulation thickness |
D:100, L/R:130, B:130 |
| Access test port |
2pcs. Ø 25 mm |
| Caster |
4+2 |
| Controller |
Microprocessor |
| Display |
Digital |
| Data logging/ interval /recording time |
USB/record every 10 minutes/100,000 data |
| Interface |
Remote alarm contact, RS-485 |
| Backup battery |
Yes |
| Temperature alarm |
High/low temperature, high ambient temperature, condenser overheating alarm |
| Electrical alarm |
Power failure, low battery, data logger failure |
| System alarm |
Sensor error, data communication failure, door ajar |
| Current |
9.7A |
| Power supply |
220 to 230V/50Hz |
| Internal dimension |
865×696×1286 mm |
| External dimension |
1205×1025×1955 mm |
| Packaging dimension |
1227×1100×2127 mm |
| Net weight |
286 kg |
| Gross weight |
378 kg |
FAQ for Ultra Low Temperature Freezer NULF-700
1: Can the Ultra Low Temperature Freezer NULF-700 store data or connect to external systems?
Our Ultra Low Temperature Freezer includes USB data logging that records temperature every 10 minutes, storing up to 100,000 data points. It also features RS-485 and remote alarm contacts for system integration.
2: Is this Ultra Low Temperature Freezer NULF-700 energy efficient?
Our Ultra Low Temperature Freezer uses R290 refrigerant and a dual-compressor system combined with EBM fans, making it both powerful and energy-efficient. You benefit from faster cooling and lower environmental impact.
3: How is overheat protection handled in the Ultra Low Temperature Freezer NULF-700?
The Ultra Low Temperature Freezer has built-in condenser overheating alarms and poor heat dissipation warnings. These features help prevent damage to the cooling system and ensure long-term reliability.
4: How often should the Ultra Low Temperature Freezer NULF-700 be defrosted?
Our Ultra Low Temperature Freezer uses a manual defrost system, so regular defrosting is recommended based on frost buildup. You should monitor ice accumulation and defrost when it starts affecting storage space or airflow.
5: What’s the best way to clean the interior?
It is best to use a soft cloth and mild disinfectant to clean the stainless steel interior. You should avoid harsh chemicals or abrasive tools that may damage the surface or insulation.
