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User's Manual
Chapter 5 Troubleshooting
1.
If the multimeter remains black without any display when the power switch is pressed.
(1) Check if the power plug is properly connected.
(2) Check if the power switch on the rear panel is turned on.
(3) Check if the fuse of the power input on the rear panel is fusing. If it is fusing, replace
the fuse as required.
(4) After making the above checks, restart the instrument.
(5) If the product still does not work properly, contact the UNI-T Service Center for
assistance.
2.
When connect a current signal, no change in reading.
(1) Check if the probe is properly inserted into the current jack and LO jack.
(2) Check if the current fuse on the rear panel probe is fusing.
(3) Check if the measurement scale is correctly switched to DCI or ACI.
(4) Check if the input is ACI but the scale is in DCI.
3. When a DC power signal is connected, the reading display is not normal.
(1) Check if the probe is correctly inserted into the current jack and LO jack.
(2) Check if the current fuse on the rear panel probe is fusing.
(3) Check if the measurement scale is correctly switched to DCI or DCV.
(4) Check if the input is DCI but the scale is in ACI.
4.
USB cannot be recognized.
(1) Check if the USB can work normally.
(2) Make sure the USB is USB Flash, this instrument does not support hard disk type
USB.
(3) Make sure the capacity of the USB is too large, the multimeter recommends using a
USB not more than 128GB.
(4) After restarting the instrument, insert the USB again for checking.
(5) If the USB still does not work properly, contact the UNI-T Service Center for
assistance.
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