34
13912-101 Rev. B
Classification
The AT555 is classified as Class 1 Equipment.
Class 1 Equipment is equipment in which protection against electric shock does not rely on basic insulation only, but which includes
an additional safety precaution in that means are provided for the connection of the equipment to a protective earth conductor
in the fixed wiring of the installation in such a way which accessible metal parts cannot become live in the event of a failure of
the basic insulation.
The AT555 is classified as Class B Equipment.
Class B Equipment provides an adequate degree of protection against electrical shock, particularly regarding allowable leakage
currents and reliability of the protective earth connection.
The AT555 is classified as IPX0 Equipment.
IPX0 Equipment is ordinary equipment enclosed without protection against ingress of water.
The AT555 is not suitable for use in the presence of flammable anesthetic mixtures with air or with oxygen or nitrous oxide.
According to the mode of operation, the AT555 is a Continuous Operation instrument.
Appendix A - General Specifications (Continued)
Symbol Information
The following symbols appear on the instrument.
Caution symbol indicating important operating and maintenance instructions that are included in
this User’s Guide.
Type B Product Classification
Class 1 Equipment, Continuous Operation
Alternating Current Power
Protective Earth Connection
CompliancetoMedicalDeviceDirective93/42/EEC
ON/OFF
Date of Manufacture
Authorized to mark given by Intertek ETL Semko for conformance with electrical standards
Catalog Number
Waste of Eletrical and Electronic Equipment
[REF]
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