Speedometer Graph

Dear Friends,

I have tried to plot a speedometer graph based on taking help from http://www.brainbell.com website. I have attached the file which consists of the graph. But the problem I am facing is, even though the input data (cell F3) is zero, the dial is still showing at 11 (or not equal to 0).
How should I make sure that the dial is showing as per Input data.
Would appreciate if someone could help on this.

With Regards,
venu.