Chapter 2 Front Panel Operations RIGOL
DP800 User’s Guide 2-13
Sense Working Mode
When the output current of the power supply is high, the voltage drop on the load
lead cannot be ignored. To ensure that the load can acquire the correct voltage drop,
CH2 of DP821 and DP811 (both provide 10A output current) provide the Sense
(remote sense) working mode. In this mode, the instrument detects the voltage at
the load terminal instead of the voltage at the output terminal of the power supply;
in this way, the instrument can automatically compensate for the voltage drop
caused by the load lead to ensure that the power supply output value set by users is
consistent with the voltage acquired by the load.
The Sense connecting method at the front panel is as shown in the figure below.
Operation Procedures:
1. Connect the channel output terminals and Sense terminals at the front panel of
the instrument to the two ends of the load respectively, as shown in the figure
above. Pay attention to the polarity when making connections.
2. For DP821: after you select CH2 (8V/10A), press Sense to turn on the Sense
function.
For DP811: after you select the desired range, press Sense turn on the Sense
function.
In addition, the output interface at the rear panel of DP811 can also be used for the
When the output current is high, to acquire the best output characteristics,
the load leads should be as short as possible and it is recommended that you
twist the load leads together.
Twisted pairs are recommended for the Sense leads and do not twist the
Sense leads and load leads together.
Lead Equivalent
Resistance
Sense Lead
Load Lead
Sense Lead
Load Lead
Lead Equivalent
Resistance
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