
3-5
Safety and Regulatory Information
Safety Information
Before Applying Power
CAUTION
Install the instrument so that the ON/OFF switch is readily identifiable
and is easily reached by the operator. The ON/OFF switch or the detachable
power cord is the instrument disconnecting device. It disconnects the mains
circuits from the mains supply before other parts of the instrument.
Alternately, an externally installed switch or circuit breaker (which is
readily identifiable and is easily reached by the operator) may be used as a
disconnecting device.
CAUTION
Before switching on this instrument, make sure that the correct fuse is
installed and the supply voltage is in the specified range.
Servicing
WARNING
No operator serviceable parts inside. Refer servicing to qualified
personnel. To prevent electrical shock, do not remove covers.
WARNING
These servicing instructions are for use by qualified personnel
only. To avoid electrical shock, do not perform any servicing unless
you are qualified to do so.
WARNING
The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the instrument from all voltage
sources while it is being opened.
WARNING
The power cord is connected to internal capacitors that may
remain live for 5 seconds after disconnecting the plug from its
power supply.
WARNING
For continued protection against fire hazard replace line fuse only
with same type and rating (115V and 230V operation: T2.5A 250V).
The use of other fuses or material is prohibited.
Содержание N4419B
Страница 6: ...Contents vi Service Guide N5242 90001 Contents...
Страница 7: ...1 1 1 Installing the Test Set...
Страница 33: ...2 1 2 Specifications and Characteristics...
Страница 37: ...3 1 3 Safety and Regulatory Information...
Страница 44: ...3 8 Safety and Regulatory Information Regulatory Information...