Get them too low and you won’t get the coverage you need as they will be spraying the soil.
Get them too high and the mower will hit them.
If in doubt go for too low as it’s much easier to raise them up than to lower them.
I saw two jobs today where the height was wrong and it will be a problem down the line for sure
Typically sprinklers should sit 10-20ml below the finished level and turf should sit flush with paving / concrete.