Ceyear 87230 Series, Quick Start Manual

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2 Preparation before use
2.2 Routine Maintenance
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6) Wear an anti-static wrist strap and work on a grounded conductive workbench mat to protect the
analyzer and connector against electrostatic discharge.
6) Cleaning of connectors
It is necessary to wear an anti-static wrist strap when cleaning the connectors as per the following steps:
1) Use clean low-pressure air to remove the loose particles on the thread and joint surface of the
connector and check the connectors thoroughly. If further cleaning is required, proceed as follows;
2) Wet (but not soak) a lint-free cotton swab with isopropyl alcohol;
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.
7) 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.
8) 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.
Fig. 2.7 Calibration Surface
2.2 Routine Maintenance
This section introduces the daily maintenance method of the 87230 series USB CW power sensor.
2.2.1 Cleaning method
Clean the instrument surface as per the following steps:
Step 1. Power it off, and disconnect the power cord;
Step 2. Gently wipe off the surface with a piece of dry or slightly moist soft cloth, and it is not allowed to
Joint surface
N type (female) N type (male)