Select™ ULT Compact Chest Freezers offer an adjustable temperature control range of –50 to –86°C (factory preset at –80°C). The advanced PLC (Programmable Logic) microprocessor controller is top-mounted on the right front face of the unit, with display and interface easily accessible. Power on/off switch is located in a protected area on the back of cabinet. Real time clock, event logging, alarm history, advanced alarms, alarm-test, and memory functions are standard functions. Password protection (2 levels, set points, and parameters) provide added security for power, temperature, and alarm settings. A multifunction, menu-driven keypad with LCD display enables trouble-free access for monitoring of all control features. Temperature is adjustable in 0.1°C increments, and displayed to 0.1°C increments. A control probe located on the rear, bottom right corner provides optimal and accurate temperature measurement and control. Units offer automatic voltage fluctuation compensation with low voltage boost and high voltage buck. Incoming voltage is monitored and displayed digitally. Additional standard features include a built-in surge suppressor with indicator, a power failure alarm (audible and visual), a time selectable alarm test, and an ambient temperature alarm and indicator to indicate room temperature conditions. Condenser/compressor protection monitors performance and automatically adjusts to internal and external conditions. Audible and visual Hi/Lo temperature alarms are user settable via controller keypad. Set point and controller access security are programmable via key or password. Additional alarm features include a clean filter alarm and indicator, event logging alarm history, a lid ajar indicator (audible and visual), and remote alarm contacts located on the back of the cabinet for easy installation and access. The exclusive voltage boost/buck system ensures proper operating voltage to the operating system. This reduces incoming line voltage if too high and boosts line voltage if too low. Solid state relay and circuit breaker. Automatic delay restart (time programmable) delays freezer restart after power interruption. Units offer manual defrost. Surge protection minimizes voltage spikes and protects system electrical components. Units also feature a continuous recharging 24-hour battery backup for controller system functions, with low battery indicator.
The exclusive refrigeration system is powered by an advanced, low-noise, high-performance cascade refrigeration system using two next generation 1HP hermetically sealed compressors
Select™ Chest Freezer construction features CFC-free, closed-cell urethane foam insulation (4" thick) on cabinet front, back, sides, and floor. The lid is 2" thick foam insulation, and includes removable 2" thick sublid. Units feature a high-impact, smooth, scratch- and corrosion-resistant painted white exterior and smooth white painted interior. The finish ensures attractive appearance and easy to clean surfaces. Cabinet base, lid handle, and control bezel are painted in gray. Combination cabinet mounted multi-bulb and lid perimeter gaskets provide multiple points of lid sealing. Two 1" diameter access ports in the chamber ensure reliable frost-resistant performance, and enhance energy efficient cold performance for long term sample security and storage. Large, internal, full-capacity storage compartment is compatible with optional stainless steel storage racks, fiberboard boxes, and dividers for multiple storage needs. Holds up to 12 vertical racks. The cold wall evaporator design provides superior refrigerant flow and maximizes cooling power by ensuring the evaporator is always 100% in contact with the outer freezer chamber wall. This maximizes cold transfer heat removal. The easy open integrated lid latch and handle allows one handed opening and closing. Key lockable outer lid for sample security.
An exclusively engineered super capacity capillary tube system (patent pending) delivers refrigerant on demand. This, matched with an advanced heat exchanger design provides optimal heat removal and superior low temperature performance. The evaporator design enhances refrigerant flow, increasing the overall efficiency, temperature uniformity, and recovery performance. The high-capacity, air cooled condenser has a large surface area. Washable condenser filter maintains optimal efficiency and performance. A clean filter indicator advises when to remove and clean. CFC-free, commercially available refrigerants are used (R-404a in first stage, R-508b in second stage).
Certifications: UL and C-UL listed.
Ordering information: Accessories not included. Domestic warranty: 18-month parts and labor (total 5-year compressor). International warranty: 18-month parts warranty.