© PCE Instruments
20
Eng
li
s
h
Frame setup is carried out in special item of ALARM settings -
from
"TEST" menu. To change the type of the alarm frame operator should press
or
key on
“ALARM” position (if the icon
is displayed, the
frames are switched off). To enter in alarm frame setup operator should
press
key.
Note
. An operator is offered to set up the frame according to the
frequency, he plans to work with.
Automatic measurement of the signal amplitude and phase provides a
possibility to evaluate the defect size in analyzing the data. The measured
values of the voltage phase or amplitude are required for estimating the
defect size in conformity with the selected calibration curve. Such curve
compares the parameters of signal amplitude or phase with the defect
parameters in millimeters or percent from the wall thickness. The flaw
detector interface allows calibration curves plotting both by the phase and
amplitude.
The flaw detector connectors for the eddy current probes connection (see
Fig. 4) provide the possibility of ECP connection of various constructions
(see Fig. 11):
differential ECP, connection by the bridge circuit;
single transformer ECP;
differential ECP, connection by the bridge circuit;
differential transformer ECP with center-point ground;
single (parametric) ECP;
differential transformer ECP.