Chapter 1 Quick Start RIGOL
DL3000 User’s Guide 1-11
When the switch lever is located at a different position, it indicates that a
different voltage rating is selected. When the switch lever is at the left, it
indicates that 230 V is selected. When the switch lever is at the right, it indicates
that 115 V is selected.
5. AC Power Cord Connector
AC power input interface. Plug the specified power cord available in the
accessories into the AC power cord connector of the instrument, and then
connect the instrument to the AC power.
Before connecting the AC power, please select the proper voltage
scale by using the AC selector.
6. Fuse
When leaving the factory, the instrument has installed a fuse that conforms to
the local standard. For fuse replacement, refer to "Fuse Replacement".
CAUTION
To avoid electric shock or fire disaster, please use the specified fuse
and ensure that no short circuit occurs to the fuse holder.
7. Fuse Rating
The required fuse rating is related to the actual input voltage, please refer to the
"fuse rating" on the rear panel of the load or refer to Table 1-2.
8. RS232 Interface
Serial communication interface. Use the 9-pin RS232 cable to build
communication with the PC to realize remote control.
9. USB Device
The instrument can be regarded as the "standby device" to connect to the
external USB device (e.g. PC) to realize remote control.
10. Voltage Monitoring Output Terminal
The voltage monitoring output terminal outputs the signal in analog quantity.
You can connect a device such as a digital oscilloscope through the terminal to
display the voltage output from the output terminal, so as to monitor the
changes of input voltage of the load.
11. Current Monitoring Output Terminal
The current monitoring output terminal outputs the signal in analog quantity.
You can connect a device such as a digital oscilloscope through the terminal to
display the current output from the output terminal, so as to monitor the
changes of input current of the load.
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