Bruker 600B

600B Field drift checked and fixed

The Bruker 600 field seemed to drift upfield at about 18Hz/hr. The background drift correction was set to -61 field units per hour. Resetting it to zero (or just -1) corrected the issue. It was reset by doing a 'ha' and then going into BSMS control and lock and then field control panel and editing the appropriate field value.