Check-line TI-007X Manual de usuario
MODEL TI-007X
ULTRASONIC THICKNESS GAUGE
Operating Manual
Distributed by: ABQ Industrial LP USA
Tel: +1 (281) 516-9292 / (888) 275-5772 eFax: +1 (866) 234-0451
Web: https://www.abqindustrial.net E-mail: [email protected]
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TABLE OF CONTENTS
1.0 Introduction .......................................................................................................................... 03
1.1 Disclaimer......................................................................................................................
2.0 Keypad, Menu, Display & Connectors............................................................................... 04
2.1 ON/OFF/ENTER Key
2.2 PRB 0 Key
2.3 CAL Key
2.4 GAIN Key
2.5 SCAN Key
2.6 +/- INCREMENT/DECREMENT Keys
2.7 MODE Key
2.8 MENU Key
2.9 The Display
2.10 The Transducer
2.11 Top & Bottom End Caps
3.0 Principals of Ultrasonic Measurement ............................................................................... 11
3.1 Time versus thickness relationship
3.2 Suitability of materials
3.3 Range of measurement and accuracy
3.4 Couplant
3.5 Temperature
3.6 Measurement modes
4.0 Selecting the measurement mode........................................................................................ 14
4.1 Which Mode and Transducer do I use for my applications?
5.0 Making measurements ......................................................................................................... 16
5.1 Probe Zero
5.2 Material Calibration
6.0 Through Pain Measurement - Multimode.......................................................................... 22
6.1 Introduction
6.2 Multimode Transducers
7.0 Velocity Gauge ...................................................................................................................... 23
6.1 Velocity Gauge (VX)
6.2 Calibration to a known thickness
6.3 Calibration to a known velocity
8.0 Additional features ............................................................................................................... 26
8.1 GAIN
8.2 Hight-speed Scan
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8.3 Alarm
8.4 Differential
8.5 Units
8.6 Lite
8.7 Beep
8.8 Probe Type
8.9 Velocity (VX)
8.10 Lock
8.11 Factory Defaults
9.0 Data Transfer a& Power Options ....................................................................................... 33
9.1 Connectivity
9.2 Installing Serial Driver (CDC)
9.3 Line Power
10.0 Appendix A - Velocity Table................................................................................................. 36
11.0 Appendix B - Application Notes .......................................................................................... 37
12.0 Warranty ............................................................................................................................... 30
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1.0 INTRODUCTION
The Checkline model TI-007X is a precision ultrasonic micrometer. Based on the same
operating principles as SONAR, the TI-007X is capable of measuring the thickness of
various materials with accuracy as high as ±0.0001 inches, or ±0.001 millimeters. The
principle advantage of ultrasonic measurement over traditional
methods is that ultrasonic measurements can be performed with access to only one
side of the material being measured.
1.1 Disclaimer
While the TI-007X is a basic digital instrument, it is equipped with a number of
measurement modes and transducer options for additional versatility. It is strongly
recommended that the contents of this manual be read in its entirety to avoid erroneous
measurements based on operator error. The user is solely responsible for proper use,
setup and interpretation of the measurements acquired.
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2.0 KEYPAD, MENU, DISPLAY & CONNECTORS
The Keypad
2.1 ON/OFF/ENTER Key
The ON/OFF/ENTER key powers the unit ON or OFF. Since the same key is
also used as an ENTER key, the gauge is powered off by pressing and holding
down the key until the unit powers off.
Once the gauge is initially powered on, this key will function as the ENTER key, similar
to a computer keyboard. This key will be used to select or set a menu option.
NOTE: Unit will automatically power off when idle for 5 minutes. All current settings
are automatically saved prior to powering off.
2.2 PRB 0 Key
The PRB 0 key is used to “zero” the TI-007X in much the same way that a
mechanical micrometer is zeroed. If the gauge is not zeroed correctly, all of the
measurements that the gauge makes may be in error by some xed value. Refer
to section 5.1 for a further explanation of this important feature.
2.3 CAL Key
The CAL key is used to enter and exit the TI-007X ’s calibration mode. This
mode is used to adjust the sound velocity value that the TI-007X will use when
calculating thickness. The tool will either calculate the sound-velocity from a
sample of the material being measured, or allow a known velocity value to be entered
directly. This provides increased linearity between transducers. Refer to section 5.2 for
an explanation on the various calibration options.
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2.4 GAIN Key
The TI-007X has an adjustable gain feature for additional versatility to control
the overall output of the gauge, to compensate for various materials and
applications. There are ve gain settings (VLOW, LOW, MED, HIGH, VHI)
when pulse-echo or thin PLAS mode is selected, and three gain settings (LOW,
MED, HIGH) for all other modes where automatic gain control is used. Refer to
8.1 for details regarding the gain feature..
2.5 SCAN Key
Th offers a high speed scan feature. This feature allows for scanning larger areas
on a given test material, while still offering reasonable representation of
thickness.
2.6 +/- Increment/Decrement Key’s
The +/- Keys are used to increment/decrement values,
navigate menus, and select menu options.
2.7 MODE Key
The MODE key toggles the measurement modes. If a delay line transducer (dLY)
is selected from the PROB menu option, echo-echo (E-E) and interface-echo (I-E)
modes will be toggled. If a contact transducer (Con) is selected, pulse-echo (P-E) and
echo-echo (E-E) modes will be toggled. Finally, if the plastic transducer (PLAS) option
is selected, the thickness options thin (thin) and thick (thK) will be toggled. The
measurement modes and transducer styles offer the exibility to address specic
application scenarios. Refer to section 7.0 for an explanation on the various calibration
options.
2.8 MENU Key
The MENU key is used to access and set all of the additional features of the
TI-007X that are not at the top level of the keypad with a dedicated key. The
features and setting are outlined in the table below:
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Here’s a quick overview of navigating through the features in MENU:
1. Press the MENU key once to enter the sub menu items
2. Press the +and –keys to toggle through the features.
3. To enable or edit the status of any feature, press the ENTER key.
4. The edit icon will start blinking to indicate that the TI-007X is currently in EDIT
mode.
5. Press the +and –keys to toggle through the setting options.
6. Press the ENTER key to accept changes and return to the top level of features, or
the MENU key at any time to abort changes and return the measurement screen.
2.9 The Display
The TI-007X uses a custom glass
LCD backlit low temperature
display for use in a variety of
climate conditions. It contains
graphic icons, as well as both 7 and
14 segment display areas. Let’s take
a closer look and what all these
things are telling us:
A. Edit: This icon will be
displayed, and blinking, to let a user
know when they are in an edit
mode to change a value or setting.
Menu Feature Items
Matl Scan Alarm Diff Unit Lite Beep Probe VX
Aluminum On On On English On On Manual On
Steel Off Off Off Metric Off Off Auto Off
Stainless Options Options Options Options Contact
Iron Set Lo Set
Nominal
Low Lo Options
Plexiglass Set Hi High Med .125
PVC High .250
Plastic .375
Poly Urea .500
User 1
User 2
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B. Large 7 segment: The thickness measurement, velocity or alpha message will be
displayed in this area.
C. Measurement Modes: This group of icons indicates which measurement mode the
TI-007X is currently using. The modes are pulse-echo, echo-echo, interface-echo,
and plastics (PLAS).
D. Stability/Repeatability Indicator: This is used in conjunction with the thickness
measurement as a reference for the validity of the measurement. The TI-007X
takes multiple measurements per second, and when all the vertical bars are
illuminated, it’s a reference that the same thickness value is reliably being measured
multiple times per second.
E. Battery: Indicates the amount of battery life the TI-007X has remaining.
F. Backlight: When this icon is illuminated, it indicates the backlight is on.
G. Small 7 Segment: The material velocity, speed the sound wave travels through a
given medium/material, is displayed in this area, informing the user what material
the TI-007X is currently calibrated too. This area is also used for alpha messages
in the menu and edit modes.
H. Units: This combination of icons are illuminated in different sequences to inform
the user what measurement units are currently being displayed in the small 7
segment area.
I. Small 14 Segment: Displays the current gain setting of the TI-007X DL. In P-E
mode the options are VLOW, LOW, MED, HIGH, VHI, and LOW, MED, HIGH
with modes E-E, I-E, and PLAS. MED is the default setting
J. Units: This combination of icons are illuminated in different sequences to inform
the user what measurement units are currently being displayed in the large 7
segment area. The plus/minus icon is illuminated when the DIFF (differential)
feature is activated.
K. Small 14 Segment: The material type is displayed in this area. If it is set to a
value of one of the materials in our material list, it will be displayed in alpha
characters indicating the material type. Otherwise it will be set to CUST, indicating
custom material type.
L. Features: The icons illuminated in this row across the bottom of the LCD display
which features are currently enabled. For a complete list of the menu features in
the TI-007X , Refer to section 2.0 for a list. The TI-007X can be locked once
calibrated, to avoid accidently changing the calibration. When this icon is
illuminated, the TI-007X is in lock mode. Refer section 8.10 for an explanation on
locking the TI-007X .
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2.10 The Transducer
The transducer is the “business end” of the TI-007X. It transmits and receives ultrasonic
sound waves that the TI-007X uses to calculate the thickness of the material being
measured. The transducer connects to the TI-007X via a single shielded coaxial cabale
with microdot connectors.
Delay Line Transducer
The single element delay line transducer is commonly used with the TI-007X for
materials with an approximate range of 0.006” to 1.00” in steel. The measurement
modes used with this style of transducer are echo-echo (E-E) and interface-echo (IE).
Echo-echo mode will be used for the lower end of the measurement range, while
interface-echo for the upper end of the measurement range. Interface-echo mode
measures from the end of the delay line to the rst return echo from the back wall of
the material, while echo-echo measurements are made between the rst and second
return echoes from the back wall of the material. The frequency range for the versions
Electromatic commonly supply are from 10MHz to 20MHz.
The Delay line is fastened to the transducer with a retaining ring. A drop of couplant is
applied between the delay line and transducer body. Refer to the diagram above. The
couplant should be checked on a regular basis to keep it from drying out. To replenish,
unscrew the retaining ring counterclockwise, separate the delay line from the body,
‘clean both surfaces’, apply a drop of couplant, and reassemble.
Delay Line Graphite Tip (for use with Plastics Mode)
The TI-007X has a special “PLAS” mode that uses the standard delay line transducer, as
described above, but with a replaceable graphite delay tip. This mode and tip should be
used when the velocity of the plastic material measured is similar to the velocity of the
standard acrylic delay tip, and not achieving any signal/measurement. The graphite tip
creates a ‘mismatch’ between the tip material and the plastic material measured.
The Delay line is fastened to the transducer with a retaining ring. A drop of couplant is
applied between the delay line and transducer body. Refer to the diagram above. The
couplant should be checked on a regular basis to keep it from drying out. To replenish,
unscrew the retaining ring counterclockwise, separate the delay line from the body,
‘clean both surfaces’, apply a drop of couplant, and reassemble.
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Contact Transducer
The single element contact style transducers are commonly used for materials with
an approximate range of 0.040” to the maximum range of the TI-007X rated in steel
and depending on the transducers diameter and frequency. The frequency range is
5.0 to 10 MHz, with diameters available at 0.125, 0.250, 0.375 and 0.500 inches. The
measurement modes used with this style of transducer are pulse-echo (P-E) and echo-
echo (E-E).
Measuring
In order for the transducer to do its job, there must be no air gaps between the wear-
face and the surface of the material being measured. This is accomplished with the use
of a “coupling” uid, commonly called “couplant”. This uid serves to “couple”, or
transfer, the ultrasonic sound waves from the transducer, into the material, and back
again. Before attempting to make a measurement, a small amount of couplant should
be applied to the surface of the material being measured. Typically, a single droplet of
couplant is sufcient.
After applying couplant, press the transducer (wear face down) rmly against the area
to be measured. The Stability Indicator should have six or seven bars darkened, and a
number should appear in the display. If the TI-007X has been properly “zeroed” (see
page 16) and set to the correct sound velocity (see page 17), the number in the display
will indicate the actual thickness of the material directly beneath the transducer.
If the Stability Indicator has fewer than ve bars darkened, or the numbers on the
display seem erratic, rst check to make sure that there is an adequate lm of couplant
beneath the transducer, and that the transducer is seated at against the material. If the
condition persists, it may be necessary to select a different transducer (size or frequency)
for the material being measured. See page 8 for information on transducer selection.
While the transducer is in contact with the material that is being measured, the
TI-007X will perform four measurements every second, updating its display as it does
so. When the transducer is removed from the surface, the display will hold the last
measurement made.
2.11 Top and Bottom End Caps
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