Retrieve AHRS values for given run(s) (optionally CLBs) and detector

def ahrs(self, run, maxrun=None, clbupi=None, det_id='D_ARCA001'):
        "Retrieve AHRS values for given run(s) (optionally CLBs) and detector"
        if maxrun is None:
            maxrun = run
        with Timer('Database lookup'):
            return self._ahrs(run, maxrun, clbupi, det_id)