4 Maintenance Instructions
32 Keysight 11683A Operating and Service Manual
Maintenance Instructions
Use a soft clean damp cloth to clean the front panel and side covers.
Maintenance by the operator consists of changing the fuse (refer to Figure 2-1), and line switch
lamp replacement (refer to Figure 4-1).
Power requirements
Operating voltage range: 100/120/230/240 V
Operating frequency range:
48-66Hz/360-440 Hz at 100/120 Vac.
48-66 Hz at 230/240 Vac
Power dissapation: 12 VA (maximum)
Before switching on this instrument, make sure that the line voltage selector PCB board is
set to the voltage of the power supply and the correct fuse installed. Assure the power
supply voltage is in the specified range.
Mains supply voltage fluctuations should not exceed ±10% of the nominal selected line
voltage.
Appliance coupler (mains input power cord) is the power disconnect device. Do not position
the instrument such that access to the coupler is impaired.
For continued protection against fire hazard. replace the line fuse only with the same type
and line rating (F125 mA 250 V at 100 V and 120 V, or F62 mA 250 V at 230 V and 240 V).
The use of other fuses or materials is prohibited.
If this instrument is not used as specified, the protection provided by the equipment could
be impaired. This instrument must be used in a normal condition only (in which all means for
protection are intact).
No operator serviceable parts inside. Refer servicing to qualified personnel. To prevent
electrical shock do not remove covers.
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