ACS A1212 MASTER - Page 26

Ultrasonic flaw detector А1212 MASTER
Operation Manual
26
ACOUSTIC
CONTROL
SYSTEMS
2
But since a single-level strobe is used in this case, then only one sensitivity level can be set. E.g., acceptance. At that the second
strobe can be used to set the reporting level; and the search level shall be set by increasing the amplification.
Note:if the reference level is On, then the level of the strobe will be changed at changing the amplification value.
3 stage: TCG configuration
Do the following to configure the TCG:
- press the
key to enter the TCG settings;
Note: the strobe is centered on the screen in vertical direction. The strobe can be moved in horizontal direction; its size
is editable.
- find the maximal signal from the first reference reflector and adjust the amplification and position of the strobe conse-
quently, so that to make the signal to cross the strobe and to make the cursor to measure this the signal;
- automatically generated envelope of the signal will remember the level of the signal. To “reset” the envelope, change the
amplification by pressing the or key;
- measuring cursor will be automatically set to the maximum;
- create an anchor point by means of the key.
Note: an anchor point moves in vertical direction when the amplification (gain) is changed.
- repeat the creation procedure of the anchor point for the distant reflector.
- if the sample has more than two reference reflectors, then create anchor points from each of them using the above-de-
scribed algorithm.
To delete the anchor point, press the key F6.
Note: Several anchor points will be deleted according to their creation sequence.
- press the key.
- confirm or cancel the received TCG curve.
To save the settings, press the key. Press the key to exit the configuration window not saving the settings.
The following will appear on the display upon exiting the SETTING mode aer TCG is adjusted.
The functions of the keys applicable for TCG configuration are presented in the Table 10.