Serial to usb on Kunkin KP184 electronic load

[interflexo]

Yes. The KP184 Modbus Software is compatible with Windows 11.

Please check the drivers of your USB to Serial Adapter for any issues regarding Windows 11.

[rallyhard]

Thank you to the forum admins for maintaining this excellent resource.

I bought Interflexo’s software and find it useful, but have a bit of an issue that I was wondering if anyone else has. I tried asking Interflexo/Manuel, but haven’t heard back yet.

We use the KP184 along with the PC software to perform discharge tests on deep cycle lead-acid batteries. It works well except that during the test, the voltage will occasionally dip severely for a very brief moment and then continue normally. The test bench is not being disturbed when this happens. I’ve tried wiggling the wires between the unit and battery during the test to see if there is a bad connection, but the voltage doesn’t change at all when I do that. It happens randomly during tests whether using remote or local sense. The dip in voltage will eventually cause the test to end early as it dips below the test end voltage, so I have to keep restarting it.


Thanks for any input. 

EDIT: Here are the test reports showing the voltage dips:

https://i.postimg.cc/JtC8kjR3/kp184-Report1.png

https://i.postimg.cc/6qvwqMx5/kp184-Report5.png