Chapter 5 Trouble Shooting - UNI-T UT8805E Manual

Chapter 5 Trouble Shooting


If the power switch is pressed without any display
1) Check whether the power plug is connected properly.
2) Check whether the main power switch on back panel is turned on.
3) Check whether the input power supply fuse on back panel is fused. If it has been fused, please
replace it as required.
4) Restart the instrument after the above inspections.
5) If you still cannot use this product normally, please contact UNI-T and let us help you.

Reading remains with current signal Inserted
1) Check whether the test leads are inserted into the terminals correctly.
2) Check whether the current scale fuse on back panel is fused.
3) Check whether the scale is correct (DCI or ACI).
4) Check whether the input is ACI and the scale is in DCI.

Abnormal reading with DC power signal connected
1) Check whether the test lead is inserted into the current terminal and terminal LO correctly.
2) Check whether the current scale fuse on back panel is fused.
3) Check whether the measurement scale has been correctly switched to DCI or DCV scale.
4) Check whether the input is DCI and the scale is in ACI.

USB flash drive device cannot be identified
1) Check whether the U-disk device can work normally.
2) Confirm that it is Flash USB drive device. Hard disk type U-disk device is not supported.
3) Confirm whether the capacity of the U-disk is too large. It is recommended to use U-disk below 4GB.
4) Insert U-disk for inspection after restarting the instrument.
5)
Please contact UNI-T if the trouble is unsolved.
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UT8805E Benchtop Digital Multimeter