RIGOL DS1000B - Manual (Page 68)

RIGOL Command Systems
Programming Guide for DS1000B Series 2-56
Example:
:CHAN2:VERN ON
Set the fine adjustment function of channel 2 on.
:CHAN2:VERN? Return 1.
11. :CHANnel:UNITs
Command Format:
:CHANnel:UNITs
:CHANnel:UNITs?
Function:
The command sets the unit as VOLTs (V), AMPeres (A), WATTs (W) or UNKNown.
The may be 1, 2, 3 or 4.
Returned Format:
The query returns VOLTs or AMPeres, WATTs, UNKNown.
Example:
:CHAN1:UNIT VOLT Set the unit of channel 1 as V.
:CHAN1:UNIT? Return VOLTs.