CH9720 Operation Manual
Chapter 3 Menu Operation
12
Note
：
Please refer to the current setting for voltage setting
Note
：
When the source voltage is smaller than set value, the load can’t operate CV.
Note
：
The difference value of source voltage and set value lands on the source and lead
resistance, then the load may consume bigger current!
Constant power mode (CP)
In CP mode, the DC Load consumes a constant power. When the input voltage is changed, the
load adjusts current to maintain the power
V
V1
Input voltage
V2
（
Set power P
）
V3
I1
I2
I3
I
Load current
In other load mode, press
【
More
】
to enter menu to select power mode
，
and use
【
Start
】
to start
or stop working.
When the load is not started, use cursor and knob to set value, or press
【
CP
】
to use number key to
input the new value.
Note
：
Please refer to current setting to set the power
Constant resistance mode (CR)
In CR mode, load is equivalent as an constant resistance, load consumes the changed current as
the change of voltage
I
Slop
（
R set
）
Load current
V
Input voltage
Note
：
Please refer to the current set to set resistance