3-1
IM 2553A-01EN
Preparation
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App
Index
3.1 Handling Precautions
Safety Precautions
If you are using the 2553A for the first time, make sure to read “Safety Precautions,” on pages iv and
vi.
Do Not Remove the Case
Do not remove the case from the instrument. Some parts of the instrument use high voltages and
are extremely dangerous. For internal inspection and adjustment, contact your nearest YOKOGAWA
dealer.
Unplug If Abnormal Behavior Occurs
If you notice smoke or unusual odors coming from the instrument, immediately turn off the power and
unplug the power cord. Also, turn off the power to the target device that are connected to the output
terminals. Then, contact your nearest YOKOGAWA dealer.
Do Not Damage the Power Cord
Nothing should be placed on top of the power cord. The power cord should also be kept away from
any heat sources. When removing the plug from the power outlet, do not pull on the cord. Pull from
the plug. If the power cord is damaged or if you are using the instrument in a location where the power
supply specifications are different, purchase a power cord that matches the specifications of the region
that the instrument will be used in.
Correct the Problem If Output Is Automatically Turned Off
If an abnormality is detected in the internal circuit due to a voltage or current overloading, voltage or
current output oscillation, and so on, the 2553A will automatically turn off the output and display a
warning message (No. 032 to 035) on the output display. For details on the messages, see section
13.3.
In the case of voltage output, remove the cause of the problem, such as the external load, and turn the
output on again.
In the case of current output, remove the cause of the problem, such as the external load, short the
current terminals, and turn the output on again.
If the output still turns off after you have corrected the problem, the 2553A may be malfunctioning.
Contact your nearest YOKOGAWA dealer.
Operating Environment and Conditions
This instrument complies with the EMC standard under specific operating environment and operating
conditions. If the installation, wiring, and so on are not appropriate, the compliance conditions of the
EMC standard may not be met. In such cases, the user will be required to take appropriate measures.
Chapter 3
Preparation
