CH9720 Operation Manual
Chapter 3 Menu Operation
22
Step 1
：
select DISCHAG MOD
，
press
【
ENT
】
to select CC or CR
；
Step 2
：
set the discharge current and end voltage, input number to press
【
ENT
】
to confirm
；
Step 3
：
press key to enter test, now the load is in discharge mode, press START to run, in
display, discharge voltage, current, power, resistance, capacity, discharge time are displayed, after
discharge, press FOAM to display the discharge curve.
Note
：
the discharge parameter can be saved in U disk simultaneously, insert U disk in testing,
then press
【
SAVE
】
to select the data, now all discharge data is recorded in U disk, and the discharge
curve can be saved in the form of picture.
Note
：
The foam can only be displayed after discharge, now press foam to check the complete
discharge curve
3.2.6 Tran test (Dynamic Test)
In tran test, the load can switch 2 kinds of voltage or current, which can test the dynamic feature of
power supply.
Tran test procedure
：
Step 1
：
Select tran load, press
【
ENT
】
to select CC or CV
：
Step 2
：
Select tran mode
，
input number key to press
【
ENT
】
to confirm
；
CONT
：
load switches automatically after delay time
；
TRIG
：
pulse is unavailable, load switches in trigger signal
PULS
：
load works by value A
，
after triggering, switch to value B, delay pulse B back
to value A
；
Step 3
：
set the value of point A
，
after entering menu A, input number directly to press
【
Ent
】，
unit is depended on the load type is A or A or V.
Step 4
：
set the pulse of point A
，
after entering pulse A, input number directly to press
【
Ent
】
to
confirm
，
the unit is 1ms.
Step 5
：
set the value and pulse of point B
Step 6
：
set the edge AB and BA
，
set the load time from point A to B, press
【
Ent
】
to confirm,
the unit is ms.
Step 7
：
when the set is over, press ENTRY TEST to test page and press Start to test
When the tran test is started, load will switch from value A and B, and hold the pule width of A
and B.
