Adjusting Dc Offset; Table 4-12 Setting Range Of Dc Offset Adjustment Value - NF DP420LS Instruction Manual

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 system, 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
AC
ACDC, DC
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 system» In the [Target Phs] item, specify the phase to perform the DC
offset adjustment.
DP420LS/DP480LS
Minimum Maximum
value value
50.0
+50.0
250
+250

4.14 Adjusting DC Offset

Resolution Initial value
0.1 0.0
1 0
Unit
mV
mV
157