Safety Precautions 1-1 
1  Safety Precautions 
1.1 Safety Classification 
  According to the type of protection against electric shock: 
Class I equipment powered by outer power & equipment powered by inner batteries 
  According to the degree of protection against electric shock: 
Type-BF applied part 
  According to the degree of protection against harmful ingress of water: 
Main unit: IPX0 
Probes: IPX7 
Footswitch: FS-81-SP-2 (one-pedal) belongs to IPX8.
 
971-SWNOM (2-pedal or 3-pedal) belongs to IP68. 
  According to the degree of safety of application in the presence of a FLAMMABLE 
ANESTHETIC MIXTURE WITH AIR or WITH OXYGEN OR NITROUS OXIDE: 
EQUIPMENT not suitable for use in the presence of a FLAMMABLE ANESTHETIC 
MIXTURE WITH AIR or WITH OXYGEN OR NITROUS OXIDE 
  According to the mode of operation: 
CONTINUOUS OPERATION 
  According to the installation and use: 
MOBILE EQUIPMENT