Developed for the most critical material storage, Ultima II represents the finest, most enhanced cryogenic freezer anywhere.
Product Detail
Cryogenic Temperatures Without Liquid Nitrogen
REVCO Ultima II cryogenic freezers are designed for long-term storage of biologicals at uniform temperatures of -140°C and -150°C, safely below the -130°C glass transition temperature of water
Cell viability is improved because biologically relevant, thermally driven reactions are not known to occur
Safer, More Convenient Than LN2
REVCO cryogenic freezers include all features, control and performance attributes of the Ultima II Series freezers, plus many important advantages not available when using LN2
Stable cryogenic temperature of -140°C and -150°C without LN2 as a cooling medium
Patented, single compressor, orbital refrigeration system
Top-to-bottom temperature uniformity dramatically improved when compared to LN2 vapor
Lower operating costs than LN2 freezers of similar capacity
100% of interior space is usable, with stored samples maintained below critical temperature
Ample interior volume with capacity of up to 21,600 samples in Model ULT-10140 and up to 14,400 samples in Model ULT-7150 (2 ml vials in boxes)
Uses standard REVCO inventory racks and fiberboard boxes
High-capacity, Air-cooled Refrigeration System
Exclusive mixed refrigerant autocascade with a single, orbital refrigeration compressor
CFC-free refrigerants
Downfeed evaporator for most efficient refrigerant flow
High-capacity air-cooled condenser with dual condenser fans, aerodynamically shaped fan blades
Washable condenser filter keeps fins free of dust to maintain peak cooling efficiency; no tools required for removal
Dependable, Exclusive Microprocessor Control System
IntrLogic™ system with touchpad data entry and digital display of all functions
Setpoint security system with key-operated switch for main power and alarm
Independent operating temperature and high/low limit alarm functions with factory-set defaults for quick start-up, all setpoints adjustable in 1°C increments
Electrical System Protects Against Surges
Automatic voltage boost compensates for low voltage and brownout conditions
On-board power monitoring with digital readout of incoming line voltage
Built-in surge suppressor minimizes effect of voltage spikes from incoming electrical service
Sophisticated Alarm System Gives You Peace-of-Mind
A.I.M. (Automatic Incident Monitor) identifies any temperature deviation beyond alarm setpoints, with rapid flash for current event, slow flash if event was self corrected; A.I.M. archives most deviated temperature
Adjustable safety alarm with automatic, continuous charge battery backup provides full function in case of power failure
Power failure or temperature deviation triggers audible and visual warning
Digital batter indicator displays battery capacity; flashing low battery indicator advises when to replace battery
Touchpad alarm test function physically warms internal probe to simulate alarm condition
RS-232 data port with system software package
Exterior alarm contacts for connection to remote monitoring system
Convenient Monitoring System Reminds You When to Take Action
Lifeguard compressor protection monitors performance and automatically adjusts to internal and external conditions, extending compressor life
Extreme ambient alert warns if room temperature may affect performance
Voltage boost indicator advises of low source voltage below safe parameters and indicates voltage boost system is activated
Surge suppressor indicator advises to check intercept fuse
Clean filter indicator light advises when to remove and wash condenser filter
Low-Profile Chest Cabinet Construction for Easier Access to Inventory
Heavy duty counterbalanced lid with integrated keyed lid lock for security
Double seal lid gaskets to minimize frost buildup
Independent sub-lids provide additional protection
Minimum 5" (127 mm) foamed-in-place urethane insulation, closed-cell, CFC-free, to protect product against high ambient conditions
Heavy-gauge steel cabinet with high-impact powder paint finish
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