What to do if IPG Photonics Measuring Instruments show High Back Reflection error?
- JJames DixonSep 12, 2025
If the Measuring Instruments by IPG Photonics display a 'High Back Reflection' error, it means the back reflected power has exceeded the pre-installed maximal applicable level. First, check that the focus position is correctly adjusted and that there are no surfaces that could cause high back reflection. Then, reset the error using the RS-232 command (“RERR”) or the touch-screen display on the front panel.