If your tests are very long like this it is typically due to the Trident getting unexpected results that are different than the last test,- so it is making sure they are correct. This can occur due for a couple of different reasons:
One reason is the possibility of additive getting pulled into the sample tube during testing. Another reason could be due to the possibility of micro-bubbles being introduced to the sample line. It's also possible, that there is a kink/restriction in the sample or reagent lines causing an inconsistent delivery of the liquids. Finally, it's possible you could be experiencing fairly large swings.
So, double check your sample line placement, make sure it isn't pulling sample near additive or where microbubbles could be introduced.
Double check there is not restriction on the sample line- like going around a tight corner.
Try running a test with the reagent drawer open instead of closed.
If after doing all those things you are still getting double tests, then please reach out to our support team to investigate further.
