STARTER 300 Portable pH Meter EN-15
5.4 Self-diagnosis
Press and hold and simultaneously until the meter displays the full screen. Each
icon blinks one after the other.
This checks whether all icons are correctly shown. The next step is to check that the keys are
functioning correctly. This requires user interaction.
When b blinks, five icons are displayed.
Press the five keys in any order. Each time you press a key an icon disappears from the
screen, continue to press the other keys until all the icons have disappeared.
When the self-diagnosis has been completed successfully, PAS appears. If self-diagnosis fails,
error message Err 1 appears. In this case, repeat the self-diagnosis.
Note: You have to finish pressing all five keys within 2 minutes, otherwise Err 1 appears and you
will have to repeat the procedure.
5.5 Recover factory settings
When the meter is off, press and hold & & together for 3 seconds, the
screen displays “RST” and blinks, press to reset factory settings (MTC, slope and
offset, etc.).
Press to switch off the meter.