GE DMS Go+ Operating Manual page 179

Basics
A T T E N T I O N
An absolute prerequisite for both functions or
measurement methods is the calibration of
the DMS Go+ with the probe to be used.
The calibration enables to determine the
sound path of the first pair of transducer ele-
ments, forming the basis for all subsequent
calculations.
The calibration also includes the entry of the sound ve-
locity of the velocity reference block used made of cop-
per in the DMS Go+.
The calibration is described below for both functions.
DMS Go+ Edition 4 (05/2014)
7 Special functions of the DMS Go+ TC
7-5