Ceyear 4041 Series, Руководство пользователя

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Chapter II User Guide
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2.2.2 Selection of power line
The 4041 series spectrum analyzer uses three-core power line complying with international safety standards.
When the power line is used, insert it into a suitable power outlet with protection ground so that the power line
can ground the instrument housing. It is recommended to use the attached power line of the instrument. When
replacing the power line, it is recommended to use the same type of 250 V/10 A power line.
2.2.3 Power requirements
AC power
In the case of AC power, the attached power line or the same type, with AC power of 100 V~120 V or 200 V~240
V and frequency of 47 Hz~440 Hz, must be used. The allowable range of steady-state voltage is 10% of the rated
value, and of steady-state frequency is 5% of the rated value.
2.2.4 Electrostatic discharge (ESD) protection
Electrostatic discharge is extremely destructive to electronic components and equipment, so the powered
instrument must be operated on a workbench with ESD protection. So please pay attention to ensuring ESD
protection when using the instrument. The following ESD protection measures can be taken if conditions are met:
a) Ensure that all instruments are properly grounded to prevent ESD.
b) Operator must wear wrist straps with ESD protection before touching connectors and core wires or
assembling any part.
c) Before connecting the cable to the instrument for testing, be sure to ground the center conductor of the cable
first. The following steps can be used: Connect a short-circuiter at one end of the cable to short the center
conductor and outer conductor of the cable. Wearing wrist straps with ESD protection, grasp the cable
connector housing, connect the other end of the cable, and then remove the short-circuiter.
2.2.5 Input/output port protection
The standard impedance of RF ports for the 4041 series spectrum analyzer is 50 Ω, so add test signals or connect
appropriate load impedance in strict accordance with the port requirements to prevent damaging power amplifying
circuit.
2.2.6 Cleaning of instrument front display panel
After using for a period of time, if you want to clean the instrument display panel, follow the steps below:
a) Turn off the instrument and unplug the power line.
b) Clean the display panel gently with a piece of clean and soft cotton cloth dipped with cleaning agent.
c) Then dry the display panel with a piece of clean and soft cotton cloth.
d) Do not connect the power line until the cleaning agent dries out.
The RF input port of the spectrum analyzer has the allowable maximum input level,
so it is forbidden to add signals beyond the limit, otherwise the instrument will be
damaged.
WARNING
!