Important Information — Please Read Before Use
7
MAJ-2301 INSTRUCTION MANUAL
NOTE
Startup display icons are displayed on four corners of the observation monitor
screen for ten to twenty seconds after the power is turned ON on the surgical
microscope. Afterwards the icons will disappear. These icons are displayed until
the setup of the surgical microscope has completed and does not mean
malfunction.
Figure 1
EMC
• For safety, always use this instrument in combination with equipment compliant to the EMC
standard. Otherwise, interference from or to other equipment may result.
• The foot switch and wireless unit radiate RF energy to achieve their intended use (control of
the surgical microscope). This means that they could produce electromagnetic interferences
when they are placed in the proximity of equipment carrying the symbol marking below or
mobile and portable RF communications equipment such as a cellphone. If an
electromagnetic interference occurs, a relief measure such as displacement of interfered
equipment will be required.
• The foot switch and wireless unit incorporate the radio communication function as shown in
the following table. Consequently, they may be affected by electromagnetic interference from
nearby equipment that uses the same frequency band as them. Before using them, make
sure that there is no risk of electromagnetic interference from nearby equipment.
Table 1
Frequency band with potential risk of
extraneous interference
2400 – 2483.5 MHz
Modulation method
Primary modulation: FSK
Secondary modulation: FHSS
Antenna power
1.0 mW
