Safety
All users of the device must read and understand all safety information presented in this manual before using or repairing the device.
United States federal law restricts this device to sale, distribution, or use by or on the order of a licensed medical practitioner.
General warnings and cautions
WARNING Read and understand the instructions before using this product.
Failure to understand the operating requirements for this product can result in injury to you or the patient and can damage the product.
WARNING Explosion hazard. Do not operate this product in the presence of flammable anesthetics or other flammable substances in combination with air, oxygen-enriched environments, or nitrous oxide.
WARNING Electric shock hazard. Do not simultaneously touch the patient and the center metal contact of the handle.
WARNING Do not modify this equipment. Any modification of this equipment can lead to patient injury. Any modification of this equipment voids the product warranty.
WARNING Welch Allyn is not responsible for the integrity of any mounting installation. Welch Allyn recommends that customers contact their Biomedical
Engineering Department or maintenance service to ensure professional installation for safety and reliability of any mounting accessory.
Caution As a precaution, avoid using this product in close proximity to other equipment. The product complies with current required standards for electromagnetic interference and should not present problems to other equipment or be affected by other devices.
Caution Only authorized Welch Allyn Service Centers can perform service on this product.
Caution To make sure that the transformer can be unplugged from the AC power source, never block access to the wall socket.
Caution Rx only (for professional use).
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4 Safety Welch Allyn GS 777 Wall Transformer
Caution Do not autoclave the system. Autoclave accessories only if the manufacturer’s instructions clearly approve it.
General safety considerations
• To ensure patient safety, use only accessories recommended or supplied by Welch Allyn.
Always use accessories according to your facility’s standards and according to the manufacturer’s recommendations and instructions. Always follow the manufacturer’s directions for use.
• Welch Allyn recommends that only Welch Allyn service personnel or an authorized repair center perform warranty service. Performing unauthorized service on a device that is within warranty may void the warranty.
Electrostatic discharge (ESD)
Caution Electrostatic discharge (ESD) can damage or destroy electronic components. Handle static-sensitive components only at static-safe workstation.
Caution Assume that all electrical and electronic components of the device are static-sensitive.
Electrostatic discharge is a sudden current flowing from a charged object to another object or to ground. Electrostatic charges can accumulate on common items such as foam drinking cups, cellophane tape, synthetic clothing, untreated foam packaging material, and untreated plastic bags and work folders, to name only a few.
Electronic components and assemblies, if not properly protected against ESD, can be permanently damaged or destroyed when near or in contact with electrostatically charged objects. When you handle components or assemblies that are not in protective bags and you are not sure whether they are static-sensitive, assume that they are static-sensitive and handle them accordingly.
• Perform all service procedures in a static-protected environment. Always use techniques and equipment designed to protect personnel and equipment from electrostatic discharge.
• Remove static-sensitive components and assemblies from their static-shielding bags only at static-safe workstations—a properly grounded table and grounded floor mat—and only when you are wearing a grounded wrist strap (with a resistor of at least 1 megohm in series) or other grounding device.
• Use only grounded tools when inserting, adjusting, or removing static-sensitive components and assemblies.
• Remove or insert static-sensitive components and assemblies only with device power turned off.
• Insert and seal static-sensitive components and assemblies into their original static-shielding bags before removing them from static-protected areas.
• Always test your ground strap, bench mat, conductive work surface, and ground cord before removing components and assemblies from their protective bags and before beginning any disassembly or assembly procedures.
