SB 1000/410 bomb timer

[FeuerFliegen]

I just noticed that the bomb timer on the SB 1000/410 does not work.

 

No matter what I set it to; contact, 1 second, 5 seconds, 10 seconds, 15 seconds, it always explodes at the same time, which is about 2 seconds, maybe 3 at the most.