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A.5    Input/Output Devices 
 Touchscreen 
 Popup keyboard 
 Recorder 
A.6    Interface 
  RS-232: interface between the analyzer and the PC. 
  USB port: interface between the analyzer and the mouse, keyboard or portable 
storage device.   
A.7    Safety Classification 
  Electric shock protection I type equipment powered by external equipment. 
  Overvoltage type: II 
  Pollution level: 2 
  Device type: fixed device 
  Work type: Continuous 
  Protection degree against poisonous liquid: common device 
  Sterilization method recommended by the manufacturer: not applicable 
  Safety degree (classified according to the use in environment where 
combustible, anesthetic gases mixed with air or oxygen mixed with 
nitrogen-monoxide, nitrogen-dioxide): not applicable to places with combustible, 
anesthetic gases