Waygate Technologies Krautkramer USM 10, Operating Manual

Page: 123 / 242

UT Setup 5 Operation
Krautkrämer USM 100 Rev. - (09/2021) 123
5.11 UT Setup
In this function group you will find the settings for gain
control, alarms and output signals.
Gain
This is the same function as in the function group
Gain (see page 107).
AGC Mode
Even smaller variations of the echo amplitude can lead
to incorrect measurement results in wall thickness mea-
surements. In these cases, the exact monitoring of the
amplitude is therefore highly important. The automatic
gain control (AGC) offers practical help for this purpose.
The automatic gain control of the USM 100 keeps the
echo amplitude fully automatically at a specified screen
height and, in this way, compensates for the amplitude
variations of the signal received. This enables to clearly
improve especially the wall thickness measurement and
to make it easier.
The AGC can also be used during calibration in order to
to keep the reference amplitude of 80 % screen height
constant at ±1 % (setting
AGC Max Amp = 81 %, AGC
Min Amp = 79 %).