Instructions

4.Panel Operation
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clock source, and then press the soft key to switch. Internal/External
Warning:
The clock source defaults to the internal clock source. When an external clock source is required,
this function is switched to the outside. At this time, the clock source forcibly outputs the output.
When the clock source output selection is turned on, the clock source must be switched to
internal, and the frequency meter function stops after the clock output is turned on.
Clock Output
Press the Utility function key, select System Settings, select the Clock Output soft key, press the
Clock Output menu, and then press the soft key to toggle on/off.
Firmware update
Press the Utility softkey to select System Setup.
Plug the USB storage device into the USB connector on the front panel of the
instrument. (Note: If the USB storage device is not plugged in, the Firmware Upgrade
menu will be disabled)
Select the Firmware Upgrade softkey, press the firmware upgrade menu, use the
front panel knob to select USBDEVICE, press to enter the softkey, and enter the USB
storage device to browse the file.
Use the front panel knob to select the downloaded firmware file and press the
Execute softkey to perform the firmware upgrade.
Note: The firmware file name is as follows: xxx model _Vx.x.x version.upp.
Note: If the firmware update fails, an error code will be displayed on the screen. The
error message corresponding to the error code can be found in Schedule 2.
Error Code
Error Information
2
File too large
3
Error reading firmware file
4
Verify firmware file error
5
Firmware type flag error
6
Instrument version cannot be upgraded to
firmware file version
7
Instrument model does not match firmware file
model
Table 2
Restore to factory setting
Press the Preset function key, press the reset soft key, and then press the Enter to
restore the instrument's settings to the factory default values (Note: “Reset Settings”