Good value but has its quirks and bugs too.
Functionally this unit works as advertised and is very good value for money. Unfortunately with the current version of firmware it has some significant flaws.
Panel layout is OK although it is odd that the primary functions (LOAD ON/OFF, TRANS, SHORT) are in the midst of a sea of buttons rather then being conveniently located near the output connectors.
The user interface has many issues, some of which can lead to operational problems. For example if you want to set the output current (in CC mode) to 0.5A you MUST enter the leading zero otherwise you will select 5A (the decimal point is ignored without the leading zero). This is not just a matter of inconvenience, it means you can accidentally enter a number if you don't press the first digit correctly.
The PC interface ULTRALOAD (Windows) is clearly a work in progress. It was rushed to market and poorly tested. There are too many issues to put into a short review. The RECORD window would be useful if you could set the vertical scale range. This is sort of set by the RANGE value, but it is buggy and has to be accessed from the CV menu to set voltage, and from CC for current regardless of what mode you are in. Also scaling for the current graph is actually incorrect. For example displaying a current of 4A (which should be full scale on the 4A range( indicates more like 3A). Talk about poor testing! If there was more space I would give a complete review and I would be happy to provide feedback directly to Rigol as fixing the many issues would produce a truly great product.
Having said all of that this is a useful device, and better still if Rigol addresses the many firmware/software issues soon.
Tequipment and Rigol factory Response: Thanks for the detailed feedback. RIGOL works hard to make improvements that make instruments easier to use for our customers. All of your firmware and software comments have actually already been identified. While we can't commit to when a new revision will become available, we do have plans to make some usability improvements in this new device. Feel free to contact us directly with other suggestions as how you use the instrument is important to us. I find the easiest way to utilize the record function on UltraLoad is to record the data to a file and then open it in Excel where the scaling can be optimized for analysis. The UltraLoad graph shows basic visualization, but easy scaling of that graph is something we would like to improve. I'm glad you are enjoying the instrument and please drop us an email directly at RIGOL so that we can let you know when a new version is available.
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