Agilent Technologies 1147A, Руководство пользователя

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• The maximum continuous input range is based on heat that is internally
generated during measurement. Never input current in excess of this
level. Exceeding the rated level may result in damage to the probe.
• The maximum continuous input range varies according to the frequency
of the current being measured. See figure 2 in “Characteristics and
Specifications”
• If excess current is input, generated heat activates a built- in safety
function that blocks normal output. If this happens, remove the input
immediately (unclamp the sensor from the conductor being measured
or reduce the input current to zero). Wait until the sensor has had
sufficient time to cool before resuming operation.
• Even if the input current does not exceed the rated continuous
maximum, continuous input for an extended period of time may result
in activation of the safety circuit to prevent damage resulting from
heating of the sensor.
• At high ambient temperatures, the built- in safety circuit may activate
at current input levels below the rated continuous maximum.
• Continuous input of current exceeding the rated maximum or repeated
activation of the safety function may result in damage to the unit.
• When opening the sensor head of the probe, be sure to operate with
the opening lever. If an upper core is forced to open when the sensor
head is locked, the open- close mechanism can be damaged.
• Do NOT measure current such that the total probe current consumption
exceeds the allowable AutoProbe interface current consumption. The
excess current consumption causes a temporary shutdown of the
Infiniium power supply for safety. Quit the measurement and cycle
the power of the Infiniium, if the shutdown occurs. The typical probe
current consumption from the AutoProbe interface is shown in figure 4.
WARNING
Do not Press
Upper core
Lock state