If an error occurs, the error code is displayed in the main loop. All windows can still be accessed by pressing the button. If the button is not pressed for approximately 4 minutes, the error code is automatically displayed again.
The error message automatically disappears as soon as the source of the error is corrected. The error memory saves all errors which exist for more than 6 minutes.
Error codes
| Error code | Description | Notes |
|---|---|---|
| C - 1 | Basic parameters saved in flash or RAM have been lost | |
| E 1 | Temperature range outside [-19.9 °C ... 199.9 °C], e.g. sensor short-circuit or sensor break | |
| E 3 | Flow and return sensors interchanged | |
| E 4 | Hardware error US measurement, e.g. transducer or control defective or short circuit | |
| E 5 | Communication not possible (too many frequent read-outs) | Optional |
| E 6 | Flow direction of flow meter incorrect | |
| E 7 | No plausible ultrasound receiver signal, e.g. air in the measuring path | Application dependent |
| E 8 | No primary power supply (only with power supply unit); supply via backup battery | |
| E 9 | Battery nearly discharged, end of lifetime reached | |
| E A | Leak: Pipe break detection | |
| E b | Leak: Energy meter leak detection | |
| E C | Leak: Leak pulse input 1 | |
| E d | Leak: Leak pulse input 2 |