Preparing For Measurements - GE DMS Go+ Operating Manual

5 Operation

5.5 Preparing for measurements

You can use the DMS Go+ to measure wall thicknesses
or distances and to assess residual wall thicknesses in
a simple way. The measured value is displayed directly.
Depending on the task definition, you can apply one of
the following measuring methods:
● Measurement of residual wall thickness up to the first
echo with dual-element probes, for example in the
event of corrosion.
● Measurement of a multi-echo sequence with good
surfaces on both sides of the test object.
● Wall thickness measurement through coating by
evaluating the multi-echo sequence (DUAL-MULTI).
● Simultaneous measurement of wall thickness and
coating thickness with single echo (TopCOAT, only
with DMS Go+ TC).
● Wall thickness and residual wall thickness measure-
ment with a simultaneous determination of the cur-
rent sound velocity (Auto-V, only with DMS Go+ TC).
N o t e
The functions TopCOAT and Auto-V are de-
scribed in chapter 7 of this manual.
5-20
To prepare for measurements, you have to:
● Select a suitable probe.
● Select the suitable measurement mode.
● Calibrate the A-scan display.
● Calibrate the instrument for the selected probe and
measurement mode.
– Connect a suitable probe (see Section Connecting a
probe, page 3-9).
– Power the instrument on (see Section Starting the
DMS Go+, page 3-11).
The further steps are described in detail in the following.
Edition 4 (05/2014)
Preparing for measurements
DMS Go+