Laboratory freezer Versafreeze VF 75085 C

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Overview
LAUDA Versafreeze VF 75085 C is an ultra-low temperature chest freezer engineered for long-term storage of biological, pharmaceutical and critical laboratory samples. The standard integrated accumulator maintains actual temperature display and alarm functions for up to 35 hours in the event of power loss. Locking options down to individual drawers and internal compartments protect high‑value samples from tampering and unauthorized access.

Key features

• Laboratory chest freezer with reliable monitoring and high-efficiency insulation for long-term sample storage and quality assurance
• Password-protected user management to prevent unauthorized access to setpoints
• Interior fully made of stainless steel for cleanability and corrosion resistance
• IIOT-ready via RJ45 / Ethernet interface and RS485 for data transfer
• Energy-saving, maintenance-free refrigeration with fully hermetic high-performance compressors using natural refrigerants
• Additional insulating cover plates over usable volume and vacuum insulation to maximize storage space
• Side-blown cooling coils for direct cold transfer, fast freezing speed and uniform temperature distribution
• Touchscreen control unit with digital display for entering and recalling safety-relevant values
• Electronic alarm system with potential-free contact for connection to site alarm or central control
• Built-in data logger for storage of temperature and alarm records
• Two standard lead-throughs Ø13 mm for external sensors (e.g. Pt100)
• Magnetic sealing system to prevent door/lid gasket freezing

Operating range

• Minimum working temperature: -86 °C
• Maximum working temperature: -50 °C

Technical data

• Working temperature range: -86 … -50 °C
• Temperature stability: ±2 K
• Ambient temperature range: 15 … 28 °C
• Usable volume: 754 L
• Interior dimensions (W×D×H): 1600 × 620 × 760 mm
• External dimensions (W×D×H): 2102 × 910 × 1056 mm
• Weight: 332 kg
• Cool down time: 20 °C to -86 °C in 5 h
• Thawing time: -86 °C to 0 °C in 19 h (display and alarm maintained up to 35 h via integrated accumulator)
• Power supply: 230 V; 50 Hz
• Power plug: Schuko (EU) plus adapters BS 1363 (UK) and SEV 5934/2, T23 (CH)
• Control / connectivity: Touchscreen control, RJ45 / Ethernet, RS485
• Safety / monitoring: Password-protected user management, adjustable high/low alarm limits, electronic alarm with potential-free contact, built-in data logger
• Construction / refrigeration: Stainless steel interior, side-blown cooling coils, vacuum insulation, magnetic sealing system, hermetic high-performance compressors, natural refrigerants
• Standard pass-throughs: two lead-throughs Ø13 mm for control sensors (e.g. Pt100)
• Part no.: L003340

Accessories (examples)

• Cryo-Box 136 × 136 × 50 mm
• Cryo-Box 136 × 136 × 75 mm
• Cryo-Box 136 × 136 × 130 mm