NF DP060LM, Instruction Manual, Page: 186 / 307

4. Advanced Operation
PROGRAMMABLE AC POWER SOURCE 168
4.14 Adjusting DC Offset
Even when the output voltage is set to 0 V, the DC offset voltage from several mV to several tens
mV may exist in the output. The DC offset adjustment function can reduce such DC voltage close to
zero.
For the DC offset adjustment, four types of values are retained for each output voltage range and
AC/DC mode. For the polyphase model and polyphase output, the values need to be set for each
phase. The setting range of the DC offset adjustment value is shown in Table 4-12.
Table 4-12 Setting Range of DC Offset Adjustment Value
AC/DC mode Minimum
value
Maximum
value
Resolution Initial value Unit
AC

50.0
+50.0 0.1 0.0 mV
ACDC, DC

250
+250 1 0 mV
Note: The setting range is common to 100 V range and 200 V range.
 Operation procedure
1. Press the [Misc] soft-key and select [2:DC Adjust]. The DC offset adjustment window opens.
2. «Only for the polyphase output» In the [Target Phs] item, specify the phase to perform the DC
offset adjustment.