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General Cautions Advanced
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Osmometer 3250/Cryoscope 4250 Service Manual
General Cautions
• This product should be operated only with the type of power source indicated on the
product’s electrical ratings label. Refer to the installation instructions included with the
product.
• If the power cord provided is replaced for any reason or if an alternate cord is used, the
cord must be approved for use in the local country. The power cord must be approved for
the product’s listed operating voltage and be rated at least 20% greater than the ampere
ratings marked on the product’s electrical ratings label. The cord end that connects to the
product must have an IEC 60320 connector.
• Plug the product into an approved grounded electrical outlet.
• Do not disable the power cord’s grounding pin.
• If an extension cord or power strip is used, make sure that the cord or strip is rated for
the product, and that the total ampere ratings of all products plugged into the extension
cord or strip do not exceed 80% of the cord’s or strip’s rating limit.
• Route power cords so that they will not be walked on, tripped on, or pinched by items
placed upon or against them. Pay particular attention to the plug, electrical outlet, and
the point where the cord exits the product.
• Do not pull on cords and cables. When unplugging cords or cables, grasp the
corresponding connector.
• Do not install or use this product in any area subject to extreme short-term temperature
variations, or locations that exceed the specified operating environment temperatures.
• Never use this product in a wet area.
• To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.
• Do not install or use the product on an unstable, non-level work surface.
• Do not operate this product with the covers removed or unsecured.
Service and Maintenance Cautions
• Unplug the power cord prior to opening or removing covers, or else you may be exposed
to electric shock, excessive temperatures, or mechanical hazards.
• Performing service or maintenance not detailed in the User’s Guide, with or without this
Service Manual, should only be done by a qualified service technician.
• Never restrict airflow into or out of the product. Occasionally, check the air vents for
blockage.
• Wipe the exterior of the product with a soft, damp cloth as needed. Using cleaning
products other than those specified, may discolor or damage the finish.
• If the product requires service for any of the following reasons, unplug the product from
the electrical outlet and refer service to a qualified service technician.
• The power cord, extension cord, power strip or power input module is damaged.
• Liquid has been spilled into the interior of the product.
• A foreign object has fallen into the product.
• The product has been dropped or damaged by a falling object.
• There are noticeable signs of overheating or a burning odor.
• The product does not operate normally when you follow the operating procedures.
• The main supply fuse(s) or any internal fuse(s) continually fail.
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