I found that no matter how well sealed my loop was, the settings selected by the LEAKSHIELD wizard caused it to endlessly give false alarms.
For the last few days, I have been running the following settings without any alarms getting triggered. My loop has a single D5 Next as the pump. You can find these settings in LEAKSHIELD -> Settings -> Edit current settings.
- Maximum negative pressure: 475mbar
- Set point negative pressure: 440mbar
- Minimum negative pressure: 375mbar
- Use adaptive pressure preset: No
In the Alarms page, I have the Warning threshold set to 150ml/h and the Fill Level warning set to 30%.
My loop has significant swings in TDP that it dissipates (~100w at idle to ~950w at full load), but I use temperature setpoint controllers so the coolant temp is always between 37C and 40C with a target of 38C. Thus, the pressure changes due to fluid expansion are minimal despite the significant swings in thermal load. The pump is configured to run at a fixed RPM. If you do not already have your loop configured this way, you may want to give it a try.