RIGOL M300 - Manual (Page 119)

RIGOL
© 2007 RIGOL Technologies, Inc.
User’s Guide for DM3000 Series
4-3
Troubleshooting
1. When press the power switch, the multimeter has blank screen with
nothing displaying:
(1). Check if the power is correctly connected.
(2). Check if the main power switch on the back panel has been turn on.
(3). Check if the safety fuse has been blown, replace with a new one if necessary.
(4). Having done with the above steps, restart the instrument.
(5). If it still cannot work properly, please contact the local RIGOL Support center,
let’s serve for you.
2. When connecting a current signal, the reading has any change:
(1). Check if the test lead is correctly connected to current jack or the LO jack.
(2). Check if the safety fuse in the current location on the back panel has been
blown.
(3). Check if the measure location has switched to the DCI or ACI place correctly.
(4). Check whether the input is ACI but the shelves location is DCI.
3. When connecting a DC signal, the reading display is abnormality:
(1). Check if the test lead is correctly connected with the current jack or the LO jack.
(2). Check if the safety fuse in the current location on the back panel has been
blown.
(3). Check the measure location has switched to the DCI or DCV place correctly.
(4). Check whether the input is DCI but the shelves location is ACI.