Use a high-quality external thermocouple for secondary verification.
If you are struggling with the factory-provided software, the community generally recommends two main paths: 1. ProwerMaster (The Professional Choice) achi ir6500 software patched
Before running a full reflow, ensure the software is reading the temperature correctly. A common bug in unpatched versions is a temperature offset where the software reads 20°C higher or lower than the physical display on the machine. Safety Warning achi ir6500 software patched