- Ensure that the Switch Heaters are connected
- Press the Toggle button shown by the mouse-pointer in the above screenshot.
Then the screen will show "SWITCH HEATER CHANGING STATE, PLEASE WAIT" (see the following screenshot). - Press the "Hold" button and wait for 3 seconds.
- Click "To Zero" button and wait until the "Output Current (A)" reaches Zero.
Once the "Output Current (A)" reaches Zero, then it will be similar to the following screenshot.