ACS A1214 Expert, Operation Manual, Page: 24 / 64

Ultrasonic flaw detector А1214 EXPERT
Operation Manual
24
ACOUSTIC
CONTROL
SYSTEMS
2
Reference level, dB
Off / from 0 to 200
with step 1
Sensitivity level being set by the signal from the reference reflec-
tor. Setting the reference level by means of the
key
Correction by standard, dB
(if the reference level is On)
from - 40 to + 40
Difference between acceptance and reference levels (specified in
the documentation).
It shows how much less/more shall the acceptance level be
shifted relative to the reference level
Correction for roughness, dB
(if the reference level is On)
from 0 to + 12
Correction of the sensitivity level, considering the difference
between roughness and undulation of the surface
Acceptance, dB
(if the reference level is On)
from – 40 to + 252
Not available for manual correction. It is determined automatically
as a sum of values of the reference level, sensitivity standard and
correction for roughness
Multilevel strobe On/Off
Three levels of the strobe will be displayed on the screen: search,
reference and acceptance
Reference, dB from – 12 to 0 Setting the actual sensitivity level relative to the acceptance level
Search AFAS, dB from – 12 to 0 Setting the searched sensitivity level relative to the acceptance level
▼
Table 9
1 stage: preparing for setting
Set the sweep in the FLAW DETECTOR so that the screen displays the signals from all the flaws in the suggested inspection area.
2 stage: adjustment of the reference level
Enter the SETTING mode.
Do the following to adjust the reference level at switched On multilevel strobe:
- select the “Multilevel strobe” parameter and activate it by pressing the
key;
- select the “Reference level” parameter and activate it by pressing the key. A configuration window of the reference
level will be opened (Figure 17);
Parameter name Value Description