GE DMS Go+, Operating Manual

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5 Operation Preparing for measurements
5-22 Edition 4 (05/2014) DMS Go+
Choosing the measurement mode
You have to choose the suitable measurement mode for
the task. By doing so, you define the method for operat-
ing the instrument or the data used for determining the
measurement result.
You have a choice between the following measurement
modes:
S-IP
The measurement mode S-IP is available for single-el-
ement probes.
The wall thickness is determined on the basis of the ul-
trasonic time of flight from zero up to the last zero cross-
ing before the first flank crossing detected in gate A. The
ultrasonic time of flight is corrected by the probe delay
line which is calculated during the probe zero offset (see
Section
Probe zero offset , page 5-25).
This measurement mode is suitable for non-coated ma-
terials with smooth, parallel surfaces.
S-PEAK
The measurement mode S-PEAK is available for single-
element probes.
The wall thickness is determined on the basis of the ul-
trasonic time of flight from the last zero crossing before
the amplitude peak in gate A up to the last zero crossing
before the peak echo in gate B.
This measurement mode is suitable for non-coated ma-
terials with smooth, parallel surfaces.
S-FLANK
The measurement mode S-FLANK is available for sin-
gle-element probes.
The wall thickness is determined on the basis of the ul-
trasonic time of flight from the last zero crossing before
the first flank detected in gate A up to the last zero
crossing before the first flank crossing detected in
gate B.
This measurement mode is suitable for coated materials
with smooth, parallel surfaces.