Having new new wheels installed told by wheel installer that he has done a couple of these and on some he gets no air pressure readings when he is done.... Also is there any way to calibrate these sensors?? 

The best way to do this is to have "Tire Pressure Monitoring Diagnostic Tool." I have seen it done by placing a strong magnet next to the tire valve on each wheel and turning the key on and hittinig the reset button in the "DIC."  It has to be done in this order....left front, right front, left rear, and right rear.  You have to repeat these steps for each wheel...turning the key on and off.

Its the same scenario as above but you need to do it on the problem wheel only.  If you switch wheel positions you'll still get the same low reading if its not reset.