Opps, I hadn’t actually paid attention to the OP script…
Me neither… it is overly complicated and inaccurate… getdata() is called hundreds of times a second from the void loop() thus that count to 60 happens in seconds, not 10 minutes… and thus is running multiple timeouts that each get generated long before the first is close to finishing and thus each one running the functions repeatedly multiples of times quicker then they should… 
Not to mention the final timeout which basically reruns the loop it is already in…
'duinoception 