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Laboratory Freezer ZLN-T 125

POL-EKO Laboratory Freezer ZLN-T 125 The ZLN-T 125 is a compact, 122-liter laboratory freezer designed for stable long-term storage of samples at temperatures as low as -25?C. Featuring a natural air circulation system and a high-quality acid-proof stainless steel interior, it ensures a frost-resistant environment for sensitive materials. Controlled by the Smart 4.3-inch color touchscreen, it provides precise temperature management, integrated data logging via USB/LAN, and a comprehensive alarm system. Its tabletop design and energy-efficient cooling make it an ideal choice for medical, research, and industrial laboratories requiring localized cold storage.

SKU: ZLN-T 125 Categories: , Brand: Product ID: 21682

Description

The POL-EKO ZLN-T 125 is engineered to provide a stable thermal environment for samples that require sub-zero storage without the fluctuations typical of domestic units. Its 122-liter capacity is housed in a compact frame, allowing it to be placed on or under a laboratory bench. Unlike standard commercial freezers, the ZLN-T series is built with industrial-grade components designed for the frequent door openings and high-duty cycles of a research facility.

Advanced Control & Sample Security: The ZLN-T 125 utilizes the Smart controller to offer more than just cooling:

Intuitive Monitoring: The 4.3-inch touchscreen displays current temperature and history. It features the “Alarm Bar” for instant visual status?glowing green for stable operation and red for alarms (such as door open or temperature deviation).

Data Documentation: All temperature data is logged to internal memory. This data can be exported via a USB port or monitored remotely through a LAN connection, making it compliant with GLP standards for audit-ready documentation.
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Access Control: To protect valuable samples, the unit includes a physical door lock and the ability to password-protect the controller settings.

Superior Construction for Longevity: The interior is made of acid-proof stainless steel (DIN 1.4301), which is easy to decontaminate and highly resistant to chemicals. The freezer uses high-density polyurethane foam insulation to maintain temperature stability and minimize energy consumption. The cooling system is based on natural air circulation, which reduces the risk of sample dehydration and prevents the excessive frost buildup often caused by high-velocity fans.

Primary Applications:

Life Sciences: Storage of enzymes, DNA/RNA samples, and proteins.

Clinical Labs: Preservation of serum, plasma, and other biological fluids.

Pharmaceuticals: Stability testing and storage of temperature-sensitive reagents.

Industry: Storage of specialized chemicals and materials requiring a constant -25?C environment.

Specifications

POL-EKO Laboratory Freezer ZLN-T 125 Full Specifications

  • Chamber Capacity (Gross): 130 Liters

  • Working Capacity: 109 Liters

  • Temperature Range: $-40°C$ to $0°C$

  • Temperature Resolution: $0.1°C$

  • Temperature Fluctuation (at -20°C): $pm 0.5°C$

  • Temperature Variation (at -20°C): $pm 2.0°C$

  • Air Convection: Natural (Gravity)

  • External Width: 720 mm

  • External Height: 1190 mm

  • External Depth: 810 mm (excludes 50 mm power cable)

  • Internal Width: 370 mm (max 420 mm)

  • Internal Height: 600 mm

  • Internal Depth: 520 mm (max 530 mm / 550 mm depending on model)

  • Net Weight: 105 kg

  • Standard Shelves: 2 (Stainless steel with hole)

  • Maximum Shelves: 3

  • Max Shelf Workload: 10 kg

  • Max Unit Workload: 50 kg

  • Reinforced Shelf Version (Optional): 50 kg

  • Reinforced Unit Version (Optional): 100 kg

  • Door Type: Solid, lockable

  • Interior Material (Premium): Acid-proof stainless steel to DIN 1.4301

  • Housing Material: Powder-coated sheet or polished stainless steel

  • Insulation Type: Polyurethane foam

  • Access Port: Ø20 mm (left side)

  • Refrigerant: R290 (GWP = 3)

  • Nominal Power: 450 W

  • Voltage: 230V 50/60Hz (115V option available)

  • Defrosting: Manual

  • Controller Type: Microprocessor PID (Smart or Smart PRO)

  • Smart Controller Display: 4.3″ Full-color touch screen

  • Smart PRO Controller Display: 7.0″ Full-color touch screen

  • Connectivity (Smart): LAN, USB

  • Connectivity (Smart PRO): LAN, USB, WiFi

  • User Accounts (Smart PRO): Up to 5 users (Admin/Super-Admin)

  • Programs (Smart): 5 programs, 6 segments each

  • Programs (Smart PRO): 40 programs, 100 segments each

  • Safety Protection (Smart): Class 2.0 (DIN 12880)

  • Safety Protection (Smart PRO): Class 3.2 (DIN 12880)

  • Alarms: Acoustic and visual (Open door, sensor failure, temperature deviation)

  • Warranty: 24 months

Datasheet