OKTANTA PE4332 User manual
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PEC Flaw Detector PE4332
Operation Manual
Saint Petersburg
2021
PEC Flaw Detector PE4332 Operation Manual
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Contents
PURPOSE ........................................................................................................................................... 3
PRINCIPLE OF OPERATION.................................................................................................................. 5
TECHNICAL CHARACTERISTICS ............................................................................................................ 6
PEC FLAW DETECTOR APPEARANCE .................................................................................................. 7
Device ............................................................................................................................................ 7
Sensor ...........................................................................................................................................10
DEVICE MENU ...................................................................................................................................12
Scanning start/stop/continuation menu. .................................................................................13
Calibration ..............................................................................................................................15
Grid ........................................................................................................................................16
Test item parameters ..............................................................................................................24
Diagrams ................................................................................................................................31
Insulation thickness ................................................................................................................34
Thresholds ..............................................................................................................................35
Averaging................................................................................................................................37
Main menu .............................................................................................................................38
DEVICE OPERATION ..........................................................................................................................44
Sensor Selection............................................................................................................................44
Thickness Measurement ...............................................................................................................48
Scan mode ....................................................................................................................................50
Data Transfer ................................................................................................................................58
MAINTENANCE .................................................................................................................................58
Battery Replacement ....................................................................................................................58
Sensor Replacement .....................................................................................................................59
Encoder Installation and Removal .................................................................................................60
TRANSPORTATION AND STORAGE .....................................................................................................61
SCOPE OF SUPPLY .............................................................................................................................61
MANUFACTURER WARRANTY ...........................................................................................................62
INFORMATION ABOUT REPAIR ..........................................................................................................63
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PURPOSE
The Pulsed Eddy Current Flaw Detector PE4332 (PEC Flaw Detector PE4332) is
designed to detect corrosion under insulation without removal of the latter. The
Device is used to inspect such items as:
Insulated pipelines including pipelines in operation:
Figure 1. Pipelines.
Insulated tanks:
Figure 2. Tanks.
Oil platform supports:
Figure 3. Oil platforms.
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LNG tank supports:
Figure 4. LNG tanks.
Ship hulls with thick paint or epoxy coating:
Figure 5. Ship hull.
The Device allows testing such items without preliminary surface preparation
or insulation removal. The insulation can be represented with any non-conducting
coating, such as polyurethane, mineral wool, plastics, paint, or air. An insulation
casing can be made of aluminum or galvanized steel.
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PRINCIPLE OF OPERATION
The Device operation is based on the pulsed eddy current technique of
nondestructive inspection. A Device sensor generates a pulsed magnet field, which
magnetizes a test item area located beneath it. Time of magnetization and
demagnetization of this area depends on the metal thickness.
The main tool that displays the demagnetization process is A-scan shown in
Figure 6:
Figure 6. A-scan appearance.
The greater is the metal thickness under the sensor, the longer is the
demagnetization process on A-scan and vice versa, the smaller is the metal thickness
under the sensor, the faster the demagnetization occurs. The Device analyses
parameters of the demagnetization process and, based on this analysis, measures the
mean metal thickness under the sensor.
The Device is subject to mandatory calibration at the test item; for correct
operation of the Device, it is necessary to know the nominal thickness of the test
item.
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TECHNICAL CHARACTERISTICS
Measured thickness range for steel (depends on insulation
thickness and sensor, see Sensor Selection)
0 to 60 mm
Average thickness measurement error 10%
Thickness range for insulation coating (depends on insulation
thickness and sensor, see Sensor Selection)
0 to 300 mm
Minimum diameter of tested pipes 50 mm
Temperature of test item metal -100To
to +600С
Temperature of casing surface in place of sensor contact -20 to+60С
Working ambient temperature range -20 to +50C
Time of continuous operation without battery recharging 8 hours
Cable length 1.5 m, 5.5 m
Overall dimensions 246 x 315 x 32
mm
Weight 5 kg
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PEC FLAW DETECTOR APPEARANCE
Figure 7 shows the appearance of the PEC Flaw Detector PE4332. You can see
the Device itself and the sensor connected with the Device using the cable.
Figure 7. PEC Flaw Detector PE4332 appearance.
Device
The Device is incorporated into a plastic impact-resistant housing with
protective rubber inserts. The Device display is protected with a hardened impact-
resistant glass. Figure 8 shows the detailed appearance of the Device.
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Figure 8. Device appearance.
Numbers in the Figure stand for:
1 – Device carrying handle, 2 – Device display, 3 –Device keyboard, 4 –
connector for transducers, 5 – USB-A and USB-B connectors, 6 – recharger connector,
7 – holder for Device installation on flat surfaces
For Device display appearance, see Figure 9.
Figure 9. Device display.
There are five main screen panels. They are numbered and indicated in Figure
9:
Panel 1 This panel contains information on the connected sensor name,
GPS coordinates, current date and time, battery charge level, as well as
different indicators can be found at this panel. The indicators are as
follows:
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Indicator of a switched-on light ,
Indicator of a switched-on encoder ,
Indicator of activated scan mode .
Panel 2 This panel provides information on the test item as well as
displays measured thickness of metal and current thickness of the item
insulation.
Panel 3 This panel displays A-scan of the Device.
Panel 4 This panel displays C-scan of the Device.
Panel 5 This panel displays icons with functional keys.
The Device has the keyboard. The functional keys of the keyboard are
described in Table 1.
Table 1. Keys of Device keyboard
Key
Key assignment
Name
Function
ON/OFF key
Switching on and off the
Device.
Back key
Return to the previous menu
items as well as closing the
menu
Left, Up, Down, Right
navigation keys
Navigation through the Device
menu
OK key
Setting of the selected
parameter in the menu of
electronic module
Menu key Access to and exit from the
main menu of the Device
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MIN key
Display and locking A-scan on
the screen for a point with
minimum metal thickness
detected
Multi-functional keys
Various fu
nctions specified by
the icons
Sensor
Figure 10 shows the appearance of the sensor.
The sensor is made of impact-resistant plastics. Its display is protected with
hardened glass.
Figure 10. Sensor appearance.
Numbers in the Figure stand for:
Table of contents
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