If you have multiple pumps on your controller you have additional settings in Outputs Control.
Here is a video - iDoser Nutrient Controller Outputs Control Setup
Now to program hit Enter/Menu->iDoser Programming -> Outputs Control
Once in Outputs Control you want to get to the 2nd screen so you want to hit the NEXT button till you have the Start Delay Field Highlighted.
first we have a start delay that can be set in minutes and in seconds
Pump Injection which can be set as Concurrent or Sequential
Here is an example of how 3 pumps would run.
1st being EC1 Ref | 2nd being EC1 Slave | 3rd being EC2 Ref
You can also set a sequential Pump Delay in minutes and in seconds
You can also set Advance Triggers by Enabling this feature (which is only available in Peristaltic BATCH mode)
Now here is a view of how you would set up your Outputs control Pump Settings with LinkConn 1800 Software which provides a simpler control view.