New HFS-1 system not working

[blk01s4]

Hi everyone, first post here so be gentle
I purchased an HFS-1 system awhile ago and never had time to install it. This recent holiday I got everything in and it seems to be working in test mode. I tried to following the directions '5 easy steps to set it up' and Im stuck at one part.

It says to activate the system manually (I used the TST jumper to do this) and dial the 'SC' until it reads about 6 bars. .. Awesome, I tried doing that no matter which way I turn the SC dial it reads the same the entire time. What could be causing this not to work correctly? I am seeing the bars move across when its in test mode so this seems pretty simple and I can't see why its not working. Any guesses?