GE Krautkramer USM 35X, Руководство оператора

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5-18 Issue 01, 04/2005 Krautkramer USM 35X
Operation
Calibrating the USM 35X
Calibration with straight- and
angle-beam probes
Case A: With known material velocity
Calibration process
– Set the known material velocity in MTLVEL (function
group BASE ).
– Couple the probe to the calibration block.
– Set the required display range in RANGE (function
group BASE ). The calibration echo must be dis-
played on the screen.
– Position the gate on one of the calibration echoes
until the sound path of the echo is indicated in the
measurement line.
– After this, change the adjustment of the function
P-DELAY (function group BASE ) until the correct
sound path for the selected calibration echo is
indicated in the measurement line.
Example:
You are carrying out the calibration for the calibration
range of 100 mm/5" via the function group
BASE using
the calibration block V1 (thickness 25 mm/1") which is
laid flatwise.
– Set RANGE to 100 mm/5".
– Set the known material velocity of 5920 m/s
(233 "/ms) in MTLVEL .
– Set the gate so that it is positioned on the first
calibration echo (from 25 mm/1").
– Read the sound path in the measurement line. If this
value is not equal to 25 mm/1", change the adjust-
ment for the function
P-DELAY until it is at 25 mm/1".
This completes the calibration of the USM 35X to the
material velocity of 5920 m/s (233 "/ms) with a calibra-
tion range of 100 mm/5" for the probe used.
5-18 Issue 01, 04/2005 Krautkramer USM 35X
Operation
Calibrating the USM 35X
Calibration with straight- and
angle-beam probes
Case A: With known material velocity
Calibration process
– Set the known material velocity in MTLVEL (function
group BASE ).
– Couple the probe to the calibration block.
– Set the required display range in RANGE (function
group BASE ). The calibration echo must be dis-
played on the screen.
– Position the gate on one of the calibration echoes
until the sound path of the echo is indicated in the
measurement line.
– After this, change the adjustment of the function
P-DELAY (function group BASE ) until the correct
sound path for the selected calibration echo is
indicated in the measurement line.
Example:
You are carrying out the calibration for the calibration
range of 100 mm/5" via the function group
BASE using
the calibration block V1 (thickness 25 mm/1") which is
laid flatwise.
– Set RANGE to 100 mm/5".
– Set the known material velocity of 5920 m/s
(233 "/ms) in MTLVEL .
– Set the gate so that it is positioned on the first
calibration echo (from 25 mm/1").
– Read the sound path in the measurement line. If this
value is not equal to 25 mm/1", change the adjust-
ment for the function
P-DELAY until it is at 25 mm/1".
This completes the calibration of the USM 35X to the
material velocity of 5920 m/s (233 "/ms) with a calibra-
tion range of 100 mm/5" for the probe used.