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3) Use a cotton swab to remove dirt and debris from the joint surface and thread of the connector. When cleaning the
inner surface, be careful not to apply an external force to the central inner conductor or leave the cotton swab fibers on
the central conductor of the connector;
4) Evaporate the alcohol and then blow the surface clean with compressed air;
5) Check the connectors to confirm that they are free of particles and residues;
6) If the connector still has visible defects after cleaning, it indicates that the connector may be damaged. Never use a
damaged connector, and confirm the causes of damage before measurement and connection.
(5) Use of adapter
When the measuring port of analyzer is different from the type of connector used, an adapter must be adopted for
measurement connection. In addition, even if the measurement port of the analyzer is the same as the type of connector
for the port of tested part, it is also a good idea to use an adapter. Under these two conditions, the measuring port can be
protected, thus extending its service life and reducing the maintenance cost. Before connecting the adapter to the
measuring port of analyzer, it should be carefully checked and cleaned. A high-quality adapter should be used to reduce
the impact of mismatch on the measurement accuracy.
(6) Joint surface of connector
An important concept in microwave measurement is the reference surface for all measurement. In the case of calibration,
the reference surface is defined as the surface on which the measuring port and the calibration standard are jointed.
Proper connection and calibration depend on whether the connectors can be completely and straightly contact with each
other at each point of the joint surface, so as to ensure minimum power standing-wave ratio, achieve the minimum power
loss, and ensure the measurement accuracy.
Joint surface
N type (female)
N type (male)
Fig.3.7 Calibration surface
2.1.1.5 User checks
After the initial power-up of the S2438 series microwave power meter, it is necessary to check whether the instrument is
functioning properly in order to continue measurements.
Instructions on using the hard keys on the front panel and the soft menu keys.
