MU-190 / MU-231 : How to reset the lifetime counter
MU190 MU231 MU190HD Display
To reset the Life Time counter on the MU-190 or MU-231, carry out the following procedure :
* Please first check the display keys are unlocked : How to Unlock Key Operation
1) Turn on the monitor whilst holding the [MENU] key. The following menu will appear :
![](https://static.helpjuice.com/helpjuice_production/uploads/upload/image/9727/direct/1634906058910-1634906058909.png)
2) Select Other using the arrow keys on the Display
![](https://static.helpjuice.com/helpjuice_production/uploads/upload/image/9727/direct/1634906100259-1634906100258.png)
3) Change Elapsed time to "0"