Ceyear 4456 Series, Руководство пользователя

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Chapter I Operation Guide
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that the enclosure can be grounded by the power cord. The power cord provided together with the instrument is
recommended. If the power cord shall be replaced, it is recommended to use the same type of 250 V/ 2.5 A power
cord.
1.2.3 Power supply requirements
The 4456 series digital phosphor oscilloscope adopts AC power supply, with the output of 100 ~ 240 V and 50 ~
60 Hz AC power supply and max. power of 150 W. In order to prevent or decrease mutual interference due to
multiple devices by the power supply, especially internal hardware damage of the oscilloscope due to peak pulse
interference of the high power equipment, it is recommended to use AC regulated power supply for the
oscilloscope to ensure that the supply voltage is within the range specified in 0.
Table 1.1 Power requirement
Power Supply Parameter Applicable Scope
Input voltage 100 V ~ 240 V
AC
Rated input current 1.5A
Working frequency 50 Hz ~ 60 Hz
1.2.4 Electrostatic protection (ESD)
The electrostatic protection is often neglected. The accumulated electrostatic discharge of human body is easy to
damage the sensitive circuit components of the instrument, greatly reduce the test reliability of the instrument, and
even small electrostatic discharge that can
’
t be directly observed may cause permanent damage to the sensitive
device. Therefore, the following electrostatic protection measures shall be taken as much as possible when
conditions allow:
1) Ensure that all instruments are correctly grounded to prevent electrostatic generation.
2) The staff shall wear anti-static wrist straps or adopt other anti-static measures before contacting joints and
core wires or carrying out any assembly operation.
1.3 After-sales maintenance
China Electronics Technology Instruments Co., Ltd has nationwide outlets and offices, and the technical support
personnel in each outlet and office can quickly reach the user
’
s premise for technical exchanges, training and
maintenance service, and provide you with comprehensive and convenient technical support and after-sales
service. In addition, you can log in www.ceyear.com website, and get online consulting help through QQ online
customer service.
All the instruments supplied by us have passed the inspection by the quality department, and we make following
commitments: The instrument will have an 18-month warranty period after its delivery and have a long-term
maintenance, and the probe will have a 3-month warranty period. If the instrument has any fault not due to
man-made fault within the warranty period, we will provide repair free of charge; we will solve your problems by
telephone or door-to-door maintenance according to different faults of the instrument.
In addition, if the instrument has any fault, please contact us timely, and we will provide you with the necessary
help and return it to the factory for repair if necessary. The user is not allowed to disassemble the machine without
permission to avoid the damage of internal circuit and device due to wrong operation.
1.4 Identification in the Manual
During the compilation of the User Manual, some additional instructions, warnings and precautions are given in
form of identifications. Try to operate and use the instrument according to the warnings and attentions, so as to
avoid permanent damage to the oscilloscope due to improper behavior. The main identification is as shown in 0:
Table 1.2 Identification in the Manual
Identification in the Manual Explanation
It is intended to explain the operation, precautions and safety instructions of
the instrument, and remind the user of general operation information or
instructions.