Settings mode is for setting the unit into time-clock operation.
When you select this option you will be asked if you wish to use the clock feature (CLK? ON/OFF).
If you select OFF then the controller will not work as a time-clock model and will prevent starting the pump to sample at night based on a sequence of events.
If you select ON you will be prompted to set the time of day, the controller will work in time-clock mode and the solar pump is prevented from starting outside of the set hours (unless tropical mode is selected). Set the time of day in 24 hour format, note there is an AM/PM indication to avoid incorrect settings. Seconds are automatically set to zero.
Once the time is set select the START hour from 6am till 12 noon, default is 9am which means the solar pump cannot start before 9am.
Now select the END hour from 15:00 (3pm) until 21:00 (9pm), default is 19:00 (7pm) which means the solar pump will stop at 7pm.
You can also download your controller manual for step by step instructions on our solar controllers page