Agilent Technologies 1147A, Руководство пользователя

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5
Safety Considerations
Only trained service personnel who are aware of the hazard involveds
(for example, fire and electric shock) should perform maintenance on the
instrument. When maintenance can be performed without power applied,
the power cord must be disconnected from the instrument.
To ensure safe operation and to obtain maximum performance from the
unit, observe the cautions listed below.
• To avoid short circuits and accidents that could result in injury or
death, use the 1147A only with power lines carrying 300 V or less.
• When conductors being measured carry in excess of the safe voltage
level (SELV- E) and not more than 300 V, to prevent short circuits and
electric shock while the core section is open, make sure that conductors
to be measured are insulated with material conforming to (1)
Overvoltage Category I, (2) Basic Insulation Requirements for Working
Voltages of 300 V, and (3) Pollution Degree 2. Never use this sensor
on bare conductors, the core and shield case are not insulated. If a
bare conductor is inevitable to be measured, make sure that the power
to the wire must be turned off, when opening the jaws of the probe
to insert or remove the bare wire so that 300V CAT I is always satisfied.
• Avoid damaging the cable insulation surfaces while taking
measurements.
• This instrument is only made for use with the Infiniium. Do not plug
the probe into any interface other than the AutoProbe interface, of
which Infiniium has a protective earthing with double- insulation
construction.
• Take the following precautions to ensure that the Infiniium does not
form a bridge between the probe and any hazardous live part.
1
Isolate the AutoProbe interface to which the probe is connected
from other AutoProbe interfaces using basic insulation conforming
to the overvoltage category, working voltage, and pollution degree
requirements of the circuit being tested.
2
If basic insulation requirements cannot be met between the
AutoProbe interface to which this unit is connected and other
AutoProbe interfaces of the measuring instrument, make sure that
the voltage input to the AutoProbe interfaces does not exceed the
safe voltage level (SELV- E).
3
Read and observe all warnings and precautions relating to electrical
safety for the Infiniium.
• Refer to the following standards regarding the meanings of underlined
terms.
IEC61010- 1
IEC61010- 2- 031
IEC61010- 2- 032
WARNING
DANGER