Instructions

5 | The product at a glance DO-400
12 / 29 B-H86.0.21.DB214-1.0
Up / Down button
Press briefly Display of the min/max value
Change value of the selected parameter
Long press Reset the min/max value of the current measure-
ment
Both simultaneously Rotate display, overhead display
Function key
Press briefly Freeze measurement
Return to measurement display
Call up next parameter
Long press, 2s
Start menu configuration, (ONF appears in the dis-
play
Long press, 4s
Start automatic calibration, (AL appears in the dis-
play