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ET1301/1302/1303/1304 Programmable DC Electronic Load User Manual
2.4.4 Constant power mode
In constant power mode, the load consumes a constant power. When the input voltage changes, the
load will adjust the current accordingly to keep the consumed power at the set power value.
Operating instructions: 1 Select the action item by turning the knob. 2. For parameter settings, please
refer to 1.4 numeric parameter settings. 3. Press the corresponding【On/Off】 to turn on the load..
2.4.5 Constant current to constant voltage mode
The constant current to constant voltage mode is to prevent the
damaged by overcurrent discharge. In this mode, when the source to be measured cannot output the
current value set by the load, it will automatically switch from constant current mode to constant voltage
mode.
Operating instructions: 1 Select the action item by turning the knob. 2. For parameter settings, please
refer to 1.4 Numeric Parameter Setting for details. 3. Press the corresponding【On/Off】 to turn on the
load.
2.4.6 Constant resistance to constant voltage mode
The constant resistance to constant voltage mode is to prevent the source to be measured from being
damaged by overcurrent discharge. In this mode, when the source to be measured cannot output enough
current to maintain the set resistance, the load will switch from constant resistance mode to constant
voltage mode.
Hangzhou Zhongchuang Electronics Co., Ltd.
Figure 2.4.4 Constant power mode
Figure 2.4.5 Constant current to constant voltage mode
source to be measured
6
from being
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