Thermo Scientific ULT7150-9-V and ULT10140-9-V Ultra-Low Temperature Horizontal Freezers

Overview

The Thermo Scientific™ ULT7150-9-V and ULT10140-9-V ultra-low temperature (ULT) horizontal freezers are engineered for long-term, stable cryopreservation of sensitive biological materials—including primary cells, stem cell lines, tissue samples, mRNA constructs, and archival biospecimens—at sustained operating temperatures of –140 °C and –150 °C. These units operate below the glass transition temperature of water (–130 °C), effectively halting molecular mobility and enzymatic degradation while avoiding the phase-change risks associated with liquid nitrogen (LN₂) vapor-phase storage. Unlike LN₂-based systems, these mechanical ULT freezers deliver superior vertical temperature uniformity (< ±2.5 °C across full chamber depth), minimizing thermal gradients that compromise sample integrity during retrieval or prolonged storage. The design eliminates cryogenic handling hazards, eliminates routine LN₂ refills, and reduces dependency on infrastructure-grade dewars or venting systems—making them suitable for ISO 13485-certified biobanks, GLP-compliant toxicology labs, and FDA-regulated clinical trial sample repositories.

Key Features

• Self-contained cascade refrigeration system using proprietary mixed-refrigerant blends, enabling reliable operation down to –150 °C without LN₂ supplementation
• Downward-directed airflow via high-efficiency evaporator and dual condenser fans ensures consistent thermal distribution from lid to base
• IntrLogic™ microprocessor controller with touchscreen interface, 1 °C setpoint resolution, independent high/low temperature alarm thresholds, and password-protected parameter lockout
• Integrated Lifeguard™ compressor protection system continuously monitors ambient temperature, voltage stability, and internal performance metrics—automatically adjusting fan speed and defrost cycles to maintain setpoint fidelity
• Acoustic-optical alarm system with battery-backed backup (auto-recharging NiMH), digital battery status indicator, and RS-232 port for external alarm relay and remote monitoring integration
• Robust structural design: 16-gauge cold-rolled steel cabinet with impact-resistant powder coating; dual-gasketed hinged lid with integrated key-lock and auxiliary latch; 12.7 cm CFC-free polyurethane insulation (R-value > 35)
• User-accessible condenser filter with “Filter Clean” indicator; front-access service ports; adjustable leveling casters with locking mechanism

Sample Compatibility & Compliance

These ULT freezers support standard cryogenic storage formats including 2D barcoded冻存盒 (e.g., Thermo Scientific™ Nunc™ CryoBoxes), 1.8 mL external-thread vials, and custom rack configurations compatible with automated sample management systems. Units comply with IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and meet electromagnetic compatibility (EMC) requirements per IEC 61326-1. Data logging functionality supports 21 CFR Part 11 compliance when paired with validated third-party software platforms (e.g., Thermo Fisher’s SampleManager LIMS or LabArchives ELN). Temperature mapping reports per ISO/IEC 17025-accredited protocols are supported through built-in event logging and external data export via RS-232.

Software & Data Management

The IntrLogic™ controller logs timestamped temperature events, alarm triggers, power interruptions, and user-initiated actions (e.g., door openings, setpoint changes) in non-volatile memory. Raw data exports in CSV format via RS-232 enable integration with laboratory information management systems (LIMS), electronic lab notebooks (ELN), and enterprise-wide environmental monitoring platforms. Optional firmware upgrades provide enhanced audit trail capabilities—including operator ID tagging, configurable retention periods, and cryptographic hash verification for exported logs—facilitating GxP-aligned review processes. Remote monitoring is achievable via optional Ethernet gateway modules (sold separately), enabling SNMP-based alerts and centralized dashboard visualization.

Applications

• Long-term archiving of human biospecimens in biorepositories accredited by the International Society for Biological and Environmental Repositories (ISBER)
• Cryostorage of induced pluripotent stem cells (iPSCs) and organoid cultures requiring strict thermal stability to preserve epigenetic fidelity
• Stabilization of thermolabile nucleic acid therapeutics (e.g., lipid nanoparticle-formulated mRNA) prior to analytical characterization or formulation development
• Backup storage for critical reference standards used in clinical chemistry assay validation under CLIA and CAP guidelines
• Supporting ISO 15189-accredited medical laboratories in maintaining traceable cold chain continuity for proficiency testing materials

FAQ

What is the recommended ambient operating environment?
Units are rated for continuous operation in rooms maintained between 10–30 °C and ≤80% RH (non-condensing). Ambient temperatures exceeding 32 °C trigger an “Extreme Room Temp” warning and may reduce compressor lifespan if sustained.

Is manual defrost required?
Yes—these models feature a user-initiated manual defrost cycle to prevent ice accumulation on the evaporator surface. Defrost frequency depends on door-open duration, ambient humidity, and usage patterns; typical intervals range from 3–12 months.

Can the unit be integrated into a building management system (BMS)?
Yes—via the RS-232 serial port using Modbus RTU protocol (with appropriate converter), enabling real-time temperature telemetry and alarm state reporting to centralized HVAC or facility monitoring networks.

Are replacement parts and service support available globally?
Thermo Fisher Scientific maintains certified field service engineers and authorized spare parts distribution centers across North America, EMEA, and APAC regions. All compressors, controllers, and sensor assemblies are covered under Thermo’s global warranty program (standard 2-year parts/labor, extendable).

Does the freezer meet energy efficiency standards for laboratory equipment?
Both models comply with ENERGY STAR® criteria for ultra-low temperature freezers (v3.0), achieving ≥25% energy reduction versus baseline models. Annual kWh consumption is documented in the product datasheet and varies by model capacity and ambient conditions.