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Operating Manual: ULT25NE 10327.1 | 12.22.2016
1. Safety Precautions
To prevent personal injury, injury to others, or damage to property,
read these safety precautions carefully before use.
1.1 – Injury Prevention
• Do not cut, change or modify the power cable.*
• When removing the plug, hold onto the plug and not the cord.
• An ultra-low temperature freezer is qualitatively different than a home freezer.
At -86ºC frostbite can occur instantly.
• The user should establish and follow a protocol for safe ultra-low temperature
operating procedures. This should include (but not limited to):
— Never handle samples or freezer accessories with bare hands.
— Do not use gloves which become brittle at ultra-low temperatures.
— Nitrile and latex gloves are inadequate.
• Permeable gloves are dangerous because ultra-low temperature materials can
contact skin and cause damage.
— Be especially careful that materials at ultra-low temperature are not spilled
onto skin or clothing.
— Use only sample containers that have been approved or tested for ultra-low
temperature use.
— Some plastics shatter at ultra-low temperatures. Avoid splinter hazards.
— Biological and chemical hazards are still hazardous at ultra-low temperature.
Always wear proper protective equipment and follow appropriate isolation protocols.
— Many types of labels will fall off and/or break at ultra-low temperature. Some types
of ink which stick to glass and/or plastic at room temperature lose adhesion at
ultra-low temperature.
• In addition to the ultra-low temperature hazards above, there are also physical
hazards to consider:
— Be cautious when closing the lid to avoid a pinching hazard.
— Be careful when loading the box with heavy items.
— Always use the handles to carry the freezer.
*Warning: Unauthorized modication to the cabinet, controls or free-piston Stirling engine is prohibited
and will void all warranty provisions.
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