5. Making Conventional Measurements
Page
66
PHASOR
XS
Operating
Manual
Defining Gate-Alarm Logic
(GATES-GATE MODE-GATE A or B LOGIC)
Each gate’s alarm can be triggered under one of two cir-
cumstances. Gate alarms can be set to trigger when an
A-Scan echo crosses the gate or when
no
echo crosses
the gate. Use the following procedure to specify gate
LOGIC settings:
Step 1:
Activate the
GATE
MODE Submenu (in the
GATES Menu).
Step 2:
Select the GATE LOGIC function you wish to
specify.
Step 3:
Choose the gate-alarm triggering logic:
• POSITIVE—An A-Scan signal crosses the gate
• NEGATIVE—No A-Scan signal crosses the gate
• OFF—No alarm will be connected to the selected
gate
Step 4:
Note that A- and B-Gates can be configured so
that either triggers the alarm.
Assigning Outputs / Alarm Indication Lights to
Gates (GATES-GATE MODE-OUTPUT SELECT)
A warning light appears on the front of the instrument (see
Figure 4-2
for light location). This light corresponds to an
OUTPUT, which is in-turn assigned to a gate alarm. When
an alarm is triggered, a warning light illuminates (except
when the GATE LOGIC is set to OFF). Use the following
procedure to indicate which gate activates the light:
Step 1:
Activate the
GATE MODE Submenu (in the
GATES Menu).
Step 2:
Select the OUTPUT SELECT Function.
Step 3:
Choose one of the following selections:
• A-GATE—Alarm light indicates when A-Gate’s
alarm triggers
• B-GATE—Alarm light indicates when B-Gate’s
alarm triggers
• A or B—Alarm light indicates when either A or B
Gate’s alarm triggers
Select Gate to Be Magnified when BVIEW Is
Pressed (EVAL-EVAL MODE-MAGNIFY GATE)
Pressing
magnifies the A-Scan display so the assigned
gate spans the entire displayed range. To specify the gate
that should be magnified on demand:
Step 1:
Activate the EVAL MODE Submenu (in the EVAL
Menu).
Step 2:
Choose the MAGNIFY GATE function.
Step 3:
Select GATE A or GATE B.
Step 4:
Note that pressing BVIEW magnifies the display
so the selected gate spans the entire displayed range.
5.2
Using Angle Beam Probes and
the
TRIG
Menu
When connecting an angle beam probe to the instrument,
adjustments must be made for probe characteristics as
well as test-piece geometry. These features are shown
in
Figure 5-4
and include
• Probe
Angle
• Probe’s X value (distance from the probe’s Beam
Index Point (BIP) to the front edge of its wedge.)
• Test-piece
thickness
FIGURE 5-4—Angle Beam Flaw Detection
Summary of Contents for Phasor 16/16
Page 6: ...Contents Page 4 PHASOR XS Operating Manual ...
Page 16: ...1 Phased Array Operation Keypad Menus and Displays Page 14 PHASOR XS Operating Manual ...
Page 24: ...2 Setting Up for Phased Array Measurement Page 22 PHASOR XS Operating Manual ...
Page 86: ...5 Making Conventional Measurements Page 84 PHASOR XS Operating Manual ...
Page 92: ...6 Storing Data Sets and Generating Reports Page 90 PHASOR XS Operating Manual ...
Page 96: ...7 Technical Specifications Page 94 PHASOR XS Operating Manual ...
