ESCO Lexicon® II Ultra-low Temperature Freezer-Silver Controller

Product Introduction
Esco Lexicon® II Ultra‑Low Temperature (ULT) Freezer series provides reliable long‑term storage at ‑50 °C to ‑86 °C for critical biological samples. Built with proven, energy‑efficient refrigeration components and robust construction, these ULT freezers deliver fast cool‑down, rapid temperature recovery, excellent uniformity and extended warm‑up time during power interruptions to protect sample integrity over years of continuous operation.

Applications

• Long‑term storage of biological samples
• DNA, RNA and protein extracts
• Enzymes, reagents and vaccines
• Viral specimens and human cells
• Tissue samples and other blood products

Features

• Superior sample protection — fast cool‑down, fast temperature recovery, excellent uniformity and extended warm‑up time during power failure.
• Modern refrigeration components — high‑performance, reliable compressors engineered for efficiency under extreme ambient conditions.
• Energy saving — low power consumption for reduced operating cost.
• High‑quality construction — stainless steel interior, electrogalvanized steel exterior, rounded corners for easy cleaning and a triple‑gasket door seal.
• Isocide™ antimicrobial powder coating — eliminates 99.9% of surface bacteria within 24 hours.
• Silver Controller (basic) — microprocessor controller with 7‑segment LED display; records and monitors temperature data and events; displays actual chamber temperature; audible and visual alarms.

General Specifications

• Models: UUS‑363A‑1‑SS; UUS‑480A‑1‑SS; UUS‑597A‑1‑SS; UUS‑714A‑1‑SS.
• Temperature range: ‑50 °C to ‑86 °C.
• Ambient operating range: 15 °C to 32 °C (59–90 °F).
• Capacities: 363 L; 480 L; 597 L; 714 L.
• Energy consumption (approx.): 10.08 kWh/day; 11 kWh/day; 11.52 kWh/day; 13.92 kWh/day (by model).
• Temperature recovery time after 1 minute door opening: 24 min; 36 min; 36 min; 36 min (by model).
• Average uniformity of cycle at ‑80 °C: 8–9 °C; 7 °C; 7 °C; 7 °C (by model).
• Warm‑up time from ‑80 °C to ‑50 °C (minutes): 199; 260; 261; 300 (by model).
• Reserve capacity (by model) at various heat loads:
  • 0 W: 87.1; 89.2; 87.8; 91
  • 40 W: 85.1; 86.5; 85.8; 88
  • 60 W: 82.8; 80.9; 83.1; 86
  • 90 W: 77.9; 77.5; 80.1; 83
  • 120 W: 73.2; 74.2; 76.4; 79
• Noise level (dBA): 55.9; 56.3; 56.1; 59.1 (by model).
• External dimensions (W × D × H):
  • UUS‑363A: 797 × 1060 × 1984 mm (31.4” × 41.7” × 78.1”)
  • UUS‑480A: 942 × 1060 × 1984 mm (37.0” × 41.7” × 78.1”)
  • UUS‑597A: 1087 × 1060 × 1984 mm (42.8” × 41.7” × 78.1”)
  • UUS‑714A: 1232 × 1060 × 1984 mm (48.5” × 41.7” × 78.1”)
• Internal dimensions (W × D × H):
  • UUS‑363A: 450 × 620 × 1300 mm (17.7” × 24.4” × 51.2”)
  • UUS‑480A: 595 × 620 × 1300 mm (23.4” × 24.4” × 51.2”)
  • UUS‑597A: 740 × 620 × 1300 mm (29.1” × 24.4” × 51.2”)
  • UUS‑714A: 885 × 620 × 1300 mm (34.8” × 24.4” × 51.2”)