ET5301/5302/5303/5304 Programmable DC Electronic Load User Manual
Hangzhou Zhongchuang Electronics Co., Ltd.
15
Operating instructions for parameter setting interface: 1.Select the action item by rotating the knob; 2.
Press
【
Enter
】
to switch set options for non-numeric parameters.
3. As for the setting of numeric parameters,
please refer to 1.4 Numeric Parameter Setting for details. 4. Press
【
Esc
】
to return to the previous interface.
QUALI F SET
Qual Test :
OFF
Vol t Hi gh:
Vol t Low:
Cur r Hi gh:
Cur r Low:
Pow Hi gh:
Pow Low:
19. 999 V
3. 000 A
120. 00 W
1. 000 V
1. 000 A
20. 00 W
Figure 2.14.1
Qualification test setting interface
Figure 2.14.2
Interface displayed when the
qualification test is being started
2.15 Other system settings
2.15.1 Key-Lock Function
The load also added the lock function to prevent user misoperations. The title bar will display the
lock identifier. In the lock-out state, all the other keys including the knob are locked except [On/Off],
[Enter] and [Local] keys. In addition, a lock icon will appear in the icon bar in the lock-out state and
disappear when unlocking. Long press [Enter] for 3s to switch between locking and unlocking state.
2.16 Communication port and External expansion port
ET53 series is equipped with USB, RS232 and optional RS485 three communication modes. The
following picture shows the settings related to communication. Users can press [Utility] to enter the
system menu interface and select communication settings to enter the setting interface.
COMM SET
Local Addr :
000
Baud Rat e: 115200
Figure 2.15.2 Communication setting interface
2.16.1
Communication port
