Keysight Technologies 8480 Series, Operating And Service Manual

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1 Introduction
18 Keysight 8480 Series Operating and Service Manual
Safety Considerations
The warning that follows is related to possible personal injury.
8480 series, Options
8485A and 8485D option 033
The 8485A and 8485D power sensors with option 033 are calibrated to measure
power levels in the 50 MHz to 33 GHz frequency range. In all other respects, they
are the same as their respective standard power sensor.
Accessories Supplied
Accessories are required to connect various power sensors to the power meter's
50 ohm, Power Reference (1 mW, 50 MHz) output connector (Type-N (f)).
8483A 75 ohm sensor
The 8483A sensor is supplied with an adapter, shown in . This accessory is a
mechanical adapter only, not an impedance transformer, therefore an impedance
mismatch exists that must be taken into consideration when calibrating the power
meter and sensor. The REF CAL FACTOR, on the power sensor label, has been
adjusted for the impedance mismatch. This REF CAL FACTOR, when used to
calibrate any power meter, will allow calibration to 1.000 mW. The CAL FACTOR,
CAUTION
Removal of the D-ring that is on the sensor assembly WILL VOID THE
WARRANTY. The input connector on the sensor has a D-ring to prevent the
sensor from being connected to a high power source when its attenuator is
not attached. The sensor must only be connected to the power meter for
calibration or to the high power attenuator for RF measurement.
WARNING
The high power attenuator contains a substrate of beryllium oxide. Beryllium
oxide in a powder form is a hazardous material and may be injurious to your
health if inhaled. Do not perform any operation on the beryllium oxide that
might generate dust. Defective attenuator should be returned to Keysight
Technologies for proper disposal.