R&S RT-ZC20 Manual De Usario página 41

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R&S RT-ZC20
Risk of instrument damage due to continuous input current
● The maximum continuous input range is based on heat that is internally
generated during measurement. Always keep the input current below 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. Refer to the data sheet "R&S RT-Zxx
Oscilloscope Probes, Specifications"
● If the input current exceeds a certain level, generated heat activates a
built-in safety function that blocks normal output. If this happens, remove
the input immediately (remove the sensor from the conductor being mea-
sured, 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
current, continuous input for an extended period of time may result in acti-
vation 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 current.
● Continuous input of current exceeding the rated maximum or repeated
activation of the safety function may result in damage to the device.
● Do not place any unclamped conductor with an electric current of a fre-
quency of 10 kHz or more near the sensor head. Current flowing in the
conductor nearby may heat up the sensor head and cause its temperature
to rise, leading to damage to the sensor. For example, when one side of
a go-and-return conductor is clamped and the other side is also placed
near the sensor head as shown in the diagram, even if the electric current
is lower than the consecutive maximum current, electric currents in both
sides will heat up the sensor and raise the temperature, thereby causing
damage to the sensor.
User Manual 1409.7814.02 ─ 01
Putting into Operation
Connecting the Probe to the DUT
24