Instruction manual

iv
 High-frequency noises from other devices through the electrical outlet
 Locates the noise source and eliminate its route using adequate measures such as a noise
elimination device.
 Turn off the device that serves as a noise source, if possible.
 Use another electrical outlet.
 Static electricity discharged by the instrument or the environment
 Discharge static electricity fully from the operator and the patient before use.
 Humidify the room.
 Lightening
Lightening occurring nearby may induce great amount of voltage to the instrument. Under such a
condition, operate the instrument as follows:
 Disconnect the power cable from the electrical outlet and use the battery.
 Use the uninterruptible power system that complies with IEC60601-1.
 When using the instrument cause noise to the receiver such as a TV or radio, locate those
receivers away from the instrument.
Environmental protection
 Remove the built-in lithium battery from the instrument when the instrument is to be disposed of.