CH9720 Programmable DC Electronic Load Instructions Chapter III Menu Operation
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Starting voltage
The minimum starting voltage can be applied to four basic load modes: constant voltage,
constant current, constant power, and fixed resistance. If the minimum starting voltage is
turned on, after the load is started, when the input voltage is less than the minimum starting
voltage, the load will be in the waiting process. The status information area is displayed as
“
。
。。
。
” and the load is automatically started once the input voltage exceeds the minimum
start up voltage.
Example: If the minimum starting voltage is set to 1.25V, select menu to minimum
starting voltage, type
【
1
】
【
.
】
【
2
】
【
5
】
, press
【
ENT
】
to confirm, the default
unit is V.
Hint: If the set value is 0 or close to 0, the minimum start voltage is displayed as
“Off”, which means the function is turned off.
Hint: After the start up voltage is set in the list test mode, the power-on self-start
function will be turned on. When the instrument judges that the input voltage is
higher than the set voltage, the list test starts, and the test sequence is stopped
after the completion of the test.
Shutdown voltage
The minimum shutdown voltage can be applied to four basic load modes: constant voltage,
constant current, constant power, and fixed resistance. If the auto-shutdown voltage is
turned on, after the load is started, after the input voltage is less than the auto-shutdown
voltage, the load will be Automatically shut down.
Hint: The setting method is the same as the minimum starting voltage.
Hint: If the set value is 0 or close to 0, the auto-shutdown voltage is displayed as
“Off”, which turns off this function.
Rising rate
Used to set the load climb rate to reduce the overcurrent surge caused by sudden load in
some cases.After inputting the data, press
【
ENT
】
to confirm, the maximum settable current
is 0.600A/uS.
Rate of decline
Used to set the time from normal working state to no load.After inputting the data, press
【
ENT
】
to confirm, the maximum settable current is 0.600A/uS.
Hint: After all menu settings are completed, you can press
【
Enter Test
】
to enter the
main test page directly, or press the
【
Back
】
key to return to the main menu.
3.2.2 Limit Settings Page
