DeFelsko PosiTector UTG User manual

Quick Guide v. 3.4
Ultrasonic Thickness Gage
Advanced model

Introduction
1. Remove the protective rubber cap from the probe.
2. Power-up Gage by pressing the center navigation button.
3. Zero the probe (see pg. 7)
4. Select the correct velocity of sound (see pg. 8)
5. Measure the part (see pg. 4)
Quick tart
Current Measurement
Currently
selected
material or
velocity of
material
Unit of Measurement
The Coupled Symbol appears when the probe
is ultrasonically connected with a surface.
inch
Steel
Battery
con
Measurement Mode
currently set to multiple-echo
(UTG M / UTG P robes only)
1
The PosiTector UTG is a hand-held Ultrasonic Thickness Gage that
uses the non-destructive ultrasonic pulse-echo principle to measure
the wall thickness of a wide variety of materials. t consists of a body
(Standard or Advanced) and probe.
This Quick Guide summarizes the basic functions of the instrument.
Download the full instruction manual at: www.defelsko.com/manuals
The PosiTector UTG powers-up when the center navigation button
is pressed. To preserve battery life, the Gage powers down after
approximately 5 minutes of no activity. All settings are retained.
To navigate, use the Up and Down buttons to scroll vertically and
to ELECT.
Menu Operation
Gage functions are menu controlled. To access the Menu,
power-up the gage, then press the center navigation button.
Press the (+) button to switch
pages in a multipage menu.
Press the (
-
)button to return to
the previous menu or page.
Select Exit to exit from any menu.
Typical Display
0.200
Previous Page
(Exit) Up Next Page
Access the Menu
(Center/Select)
Down

2
When powered-up the PosiTector automatically
determines what type of probe is attached and does a
self-check.
To disconnect a probe from a body, slide the plastic probe
connector horizontally (in the direction of the arrow) away
from the body. Reverse these steps to attach a new probe.
t is not necessary to power-down the Gage when
switching probes.
Additionally, the PosiTector gage body accepts a wide variety of
probe types including magnetic, eddy-current and ultrasonic
coating thickness, surface profile, environmental, hardness, salt
contamination and ultrasonic wall thickness probes. See
www.defelsko.com/probes
Probes
•PosiTector UTG CA / UTG C – dual element, single-echo
probe ideal for measuring severely corroded/eroded materials.
PosiTector UTG CA models feature a built-in probe, while
PosiTector UTG C models feature a probe mounted on a 1m
(3ft) cable.
•PosiTector UTG CX - same specifications as UTG C above,
but includes a braided stainless steel cable jacket and
reinforced strain reliefs for protection in demanding
environments.
•PosiTector UTG CLF – dual element, single-echo probe
designed for measuring thick and/or attenuative materials such
as cast iron.
•PosiTector UTG M – single element, multiple-echo probe
features Thru-Paint capability designed to quickly and
accurately measure the metal thickness of a painted structure
without having to remove the coating.
•PosiTector UTG P – single element probe with automatic
multiple-echo or single-echo mode depending on material type
and thickness, can be used for Thru-Paint applications. deal
for high-resolution measurements on thin plastics and metals.
PosiTector UTG probes are available for a
variety of wall thickness applications:

3
PosiTector UTG probes transmit an ultrasonic pulse into the material
to be measured. This pulse travels through the material towards the
other side. When it encounters an interface such as air (back wall) or
another material, the pulse is reflected back to the probe. The time
required for the pulse to propagate through the material is measured
by the gage, represented as t1 and t2 below.
All PosiTector UTG probes determine thickness by measuring t1
(uncoated) or t2 (coated), dividing it by two and then multiplying by
the velocity of sound for that material (steel). [UTG M and UTG P
single-echo mode only] See Figure 1.
For uncoated materials t1relates directly to material thickness.
When a material is coated the propagation time is increased and
is shown above as t2.
Coatings such as paint have a slower velocity of sound than that
of metal. Thus the single-echo technique will produce a thickness
result greater than the actual combined coating+metal thickness.
Ultrasonic Thickness Probes –
Theory of Operation
>
Figure 1
Probe
Probe
t1
t1
t2
t2
teel
teel
Coating

4
n the figure above, multiple-echo mode measures only the time
between echoes. Regardless of whether the steel is coated or not,
all times between echoes are the same. n multiple-echo mode the
gage determines thickness by measuring t1+t2+t3, dividing it by
six and then multiplying by the velocity of sound for that material.
The resultant thickness calculation made by the instrument is
therefore an accurate measurement of the steel thickness only,
disregarding the coating thickness.
PosiTector UTG P (Precision) probes automatically switch
between multiple echo and single echo operation depending upon
the type and thickness of the material being measured.
The velocity of sound is expressed in inches per microsecond or
meters per second. t is different for all materials. For example,
sound travels through steel faster (~0.233 in/µs) than it travels
through plastic (~0.086 in/µs).
1. Remove rubber cap from probe.
Couplant (glycol gel - included) must
be applied to the surface to be tested to
eliminate air gaps between the wear face
and the surface. A single drop of couplant is
sufficient when taking a spot measurement.
The PosiTector UTG M and UTG P in multiple-echo mode
determines thickness by measuring the time between at least
three consecutive back wall echoes.
How to Measure
1
t2
t3
t
Figure 2
Probe
Probe
teel
Coating
1
t2
t3
t

5
urface Conditions
Ultrasonic measurements are affected by the condition,
roughness and contour of the surface to be tested.
Measurement results may vary on coarse surfaces. Where
possible, it is recommended to seat the transducer on a smooth
flat surface that is parallel to the opposite side of the material.
On rough surfaces, the use of a generous amount of couplant
minimizes the surface effects and serves to protect the transducer
from wear, particularly when dragging the probe across a surface.
When the probe senses echoed ultrasound, a coupled symbol
will appear and thickness values will be displayed. While the
probe is coupled, the PosiTector UTG continually updates the
display. The Gage will emit a “tick” sound every time the probe
takes a measurement. The Reading Tick option can be disabled
in the etup menu (see pg. 10).
3. When the probe is removed from the surface, the last
measurement will remain on the display.
Occasionally, excess couplant will remain on the probe when
the probe is lifted from the surface. This may cause the
PosiTector UTG to display a final measurement value
different from those observed when the probe was on the
surface.
Discard this value and repeat the measurement.
2. Place the probe flat on the surface. Use moderate pressure to
press against the top of the probe with the thumb or index
finger when measuring with cabled probes.
On smooth, uncoated metal surfaces PosiTector UTG M
and UTG P probes (in multiple-echo mode) may occasionally be
unable to give a measurement result even when the "coupled"
symbol appears. Use additional couplant and lighter pressure on
the probe when measuring.
Alternatively, laying a plastic shim on the surface with couplant
applied to both sides to simulate a painted surface will help
produce a steel-only thickness measurement (multiple-echo
NOTE:

6
Calibration, Verification and Adjustment
Three steps ensure best accuracy…
1. Calibration - typically performed by the manufacturer or a
qualified lab. All probes include a Certificate of Calibration.
2. Verification of Accuracy - as performed by the user on
known reference standards such as calibration step blocks.
3. Adjustment - to a known thickness or sound velocity for the
material to be measured.
Calibration
Calibration is the controlled and documented process of measuring
traceable calibration standards and verifying that the results are
within the stated accuracy of the Gage. Calibrations are typically
performed by the Gage manufacturer or by a certified calibration
laboratory in a controlled environment using a documented process.
Verification
Gage accuracy can and should be verified using known reference
standards of the material to be tested.
Verification is an accuracy check performed by the user using
known reference standards. A successful verification requires the
Gage to read within the combined accuracy of the Gage and the
reference standards.
Adjustment
Adjustment, or Calibration Adjustment is the act of aligning the
Gage's thickness readings to match that of a known reference
sample. See Calibration Adjustment pg. 7.
mode). Switching the Gage to single-echo E Mode (see pg. 10)
will also help produce a steel-only thickness measurement (UTG
Monly).

7
Cal ettings Menu
The PosiTector UTG is factory calibrated. n order for it to take
accurate thickness measurements of a particular material it must
be set to the correct sound velocity for that material. Be aware that
material composition (and thus its sound velocity) can vary from
stated tables and even between lots from a manufacturer.
Adjustment to a sample of known thickness of the material to be
measured ensures that the Gage is adjusted as close as possible
to the sound velocity of that specific material. Samples should be
flat, smooth and as thick as the maximum expected thickness of
the piece to be tested.
The PosiTector UTG allows four simple adjustment choices. All
four methods are based on the simple premise of adjusting the
Zero
PosiTector UTG probes must be “zeroed” after a reset and
periodically during use. The Zero process compensates for probe
wear and temperature. To maintain the best accuracy, perform a
Zero when the ambient temperature changes.
PosiTector UTG C, UTG CA, UTG CX,
UTG CLF and UTG M probes:
1. Make sure the Gage is ON and the probe is wiped clean.
2. Apply a single drop of couplant nt the included zer bl ck
(UTG CA nly) r built-in zer plate located on the
underside of the probe connector. DO NOT apply couplant
directly onto the probe face.
3. Open the Gage menu, navigate to Cal ettings and select
the Zero menu option and follow the on-screen prompts.
4. When complete, the Gage will double-beep and display “----”.
PosiTector UTG P probe only:
1. Make sure the Gage is ON and the probe is wiped clean.
2. Hold the probe in the air away from all objects.
3. Open the Gage menu, navigate to Cal ettings and select
the Zero menu option and follow the on-screen prompts.
4. When complete, the Gage will double-beep and display “----”.
Calibration Adjustment

8
Cal Lock
The most common method of adjustment is to measure a sample
of known thickness. Select a reference standard of material as
close as possible in composition to the intended application. For
best results, the thickness of the reference standard should be
equal to or slightly greater than the thickness of the part to be
measured.
Material
f a known thickness of the material is not available, but the
material is known, this quick adjustment allows the user to load
one of several preprogrammed material velocities.
Velocity
f the sound velocity for the test material is known, the Gage
can be adjusted to that specific sound velocity.
2 Pt Adjust
A 2-Point adjustment allows for greater accuracy while
simultaneously adjusting probe Zero. Select two reference
standards as close as possible in composition to the intended
application. For best results, the thickness of the thicker reference
standard should be equal to, or slightly greater than the thickest
part to be measured. The thickness of the thinner reference
standard should be equal to, or slightly less than the thinnest part
to be measured.
When checked, the icon appears and the current Cal ettings
are “locked” to prevent further user adjustments.
Thickness
C
sound velocity. The first three adjustment methods make
1-point calibration adjustments to optimize the linearity of the
PosiTector UTG over small ranges. The fourth method makes a 2-
point calibration adjustment to allow for greater accuracy over
a large range.

9
Min can
Normally, the PosiTector UTG continuously takes spot
measurements while in contact with a surface. When the probe is
lifted, the last reading will remain on the display. However, it is
sometimes necessary to examine a larger region to locate the
thinnest point. When Min can is selected, the PosiTector UTG
will take continuous readings and record min/max thicknesses
Date,Time and WiFi settings are not affected by either Reset.
etup Menu
NOTE:
Reset (menu reset) restores factory settings and returns the
Gage to a known condition. The following occurs:
- All batches, stored measurements, batch names and screen
captures are erased.
- All calibration adjustments are cleared and returned to the
Gage’s factory calibration settings.
- Menu settings are returned to the following:
Memory = OFF
tatistics = OFF
Hi Lo Alarm = OFF
Min can = OFF
Reading Tick = ON
Auto Dim = ON
Converts the display from millimeters to inch and vice versa.
A can = OFF
B can = OFF
Cal Lock = OFF
E Mode = OFF
U B tream = OFF
Display = None
martCouple = OFF
Bluetooth & tream = OFF
WiFi & Access Point = OFF
U B Keyboard = OFF
Perform a more thorough Hard Reset as follows:
1. Power down the Gage and wait 5 seconds.
2. Simultaneously press and hold the (+)and center
buttons until the Reset symbol appears.
This returns the Gage to a known, “out-of-the-box” condition.
t performs the same function as a menu Reset with the addition of:
- Bluetooth Pairing info is cleared.
- Menu settings are returned to the following:
Units = millimeter
Flip Display = Normal
Auto ync .net = ON
ound = ON
Language = English
Battery Type = Alkaline
Backlight = Normal
Bluetooth mart = OFF
U B Drive = ON
Reset
Units

10
(Advanced models only)
A can
A display in which a cross sectional profile
of the test material is represented.
martCouple
When selected, the probe, once coupled, will remain coupled
until the (+)button is pressed. Eliminates unintentional decoupling.
A display in which the received pulse
amplitude is represented along the y axis
and the travel distance of the ultrasonic
pulse is represented along the x axis.
PosiTector UTG M and PosiTector UTG
Pprobes provide two cursors (vertical
green lines) which allow the user to
measure the difference between echoes
shown in the graphic display.
Coupled Smart Coupled
(Advanced models only)
B can
E Mode (PosiTector UTG M multi le-echo robe only)
Switches from multiple-echo to single-echo mode:
- To detect pits and flaws
- To increase the measurement range
- To obtain thickness measurements in
circumstances where multiple-echo can not
Reading Tick
When selected (default), the Gage will emit a “tick” sound
every time the probe takes a measurement.
Selects the type of batteries used in the Gage from a choice of
“Alkaline”, “Lithium” or “NiMH” (nickel-metal hydride rechargeable).
f “NiMH” is selected, the Gage will trickle charge the batteries
while connected via USB to a PC or optional AC power supply
(USBAC). The battery state indicator symbol is calibrated for the
selected battery type. No damage will occur if the battery type
used in the Gage does not match the selected battery type.
Battery Type
when the probe is lifted from the surface – ideal for quick
inspection over a large area.

11
tatistics Mode
HiLo Alarm
Allows the Gage to visibly and audibly alert the user when
measurements exceed user-specified limits.
A statistical summary will appear on the display. Remove the last
measurement bypressing the(
- )button.Press(+)to clear statistics.
–Average
–Maximum Value
–Standard Deviation
–Minimum Value
tatistics
X
X
Memory Management
Advanced m dels store 100,000 readings in up to1,000
batches. “New Batch”closes any currently opened batch and
creates a new batch name using the lowest available number.
New batch names are date-stamped when they are created.
The PosiTector UTG has internal memory storage for recording
measurement data. Stored measurements can be reviewed on-
screen or accessed via computers, tablets and smart phones. All
stored measurements are date and time-stamped.The symbol
appears when the Gage is set to store measurement data.
Standard m dels store up to 250 readings in one batch.
Create a new batch
(Advanced only)
Restore brightness
after dimming
Scroll through display
modes (Advanced only)
Delete last reading
Access the Menu
creen Capture
Press both the ( - ) and (+)buttons at any time to capture and save
an image copy of the current display. The last 10 screen captures
are stored in memory and can be accessed when connected to a
computer (see Posi oft U B Drive, pg. 12).

12
Accessing tored Measurement Data
DeFelsko offers the following free solutions for viewing, analyzing
and reporting data:
Posi oft U B Drive - Connect the Gage to a PC/Mac using the
supplied USB cable. View and print readings and graphs using
universal PC/Mac web browsers or file explorers. No software or
internet connection required. U B Drive must be selected in the
Gage’s “Connect > U B” menu (see below).
Posi oft Desktop - Powerful desktop software (PC/Mac) for
downloading, viewing, printing and storing measurement data.
ncludes a customizable, templated PDF Report Generator.
No internet connection required.
Posi oft.net - Web-based application offering secure, centralized
storage of measurement data. Access your data from any web-
connected device.
PosiTector App - (Advanced models only, serial numbers 784000+)
App for compatible iOS and Android smart devices. Permits users
to create, save and share professional PDF reports. Add images
and notes using the smart device’s camera and keyboard. For
more information on our PosiSoft solutions,
see: www.defelsko.com/posisoft
Connect Menu
Allows connection to your local wireless network or mobile
hot spot. deal for using your network’s internet connection
for synchronizing stored measurements with P siS ft.net.
See www.defelsko.com/wifi
WiFi (Advanced models only)
When U B Drive is checked , the P siTect r gage uses a USB
mass storage device class which provides users with a simple
interface to retrieve stored data in a manner similar to USB flash
drives, digital cameras and digital audio players. U B Drive is also
required to import stored measurements into P siS ft Deskt p
software.
U B

13
The above WiFi, U B and Bluetooth menus contain a ync .net
Now option. When selected, the Gage immediately synchronizes
stored measurement data via its respective communication
method (internet connection required).
Alternatively, select Auto ync .net from within the U B connect
menu to automatically synchronize upon connection to a PC.
Additional measurements added to memory while connected are
synchronized only when the USB cable is disconnected and
reconnected, or when the ync .net Now option is selected. WiFi
connected gages automatically attempt synchronization upon
power up.
ync .net Now
When connected, power is supplied through the USB
cable. The batteries are not used and the body will not
automatically power down. f rechargeable (NiMH) batteries are
installed, the Gage will trickle charge the batteries.
NOTE:
When enabled and connected to a computer, the PosiTector will be
recognized as a Keyboard. Readings are sent to the computer as
they are taken, emulating keystrokes, followed by a carriage return.
Keyboard
tream
NOTE:
(Advanced models only,
serial numbers 784000 and greater)
(Advanced models only,
serial numbers 784000 and greater)
Stream readings via USB Serial Port to SPC data collection
software, drones, ROVs, PLCs, and robotic devices.
For more information on USB Keyboard and
Streaming visit: www.defelsko.com/usb/stream/
P siS ft Deskt p is required when using USB
connections to synchronize measurements with P siS ft.net.
NOTE:

14
end Batches
Transfers selected batches to the PosiTector App (useful
when switching between devices). The end Batches option is
visible in the menu when the Gage is connected to a smart
device running the PosiTector App.
f Bluetooth mart is disabled, data from batches
selected in the ync Batches menu are held in a queue until
communication with the PosiTector App is re-established.
NOTE:
ync Batches
Select batches to flag them for synchronization to the
P siTect r App. New batches created while Bluetooth mart is
enabled are automatically selected.
With Bluetooth mart enabled, select ync Batches to transfer
selected batches to the PosiTector App. Only readings and
batches that have yet to be synchronized with any smart device
are synchronized automatically.
Bluetooth mart
When enabled, allows communication with a smart device
running the PosiTector App (pg.12) via auto-pairing Bluetooth
mart (BLE) wireless technology.
(Advanced models with serial numbers 784000+ only)
Allows individual readings to be sent to a computer, printer or
compatible device as they are taken using Bluetooth wireless
technology. See www.defelsko.com/bluetooth
Bluetooth (Advanced models only)
The Gage will perform a Hard Reset after an
update. (see pg. 9)
Updates
Determines if a software update is available for your Gage.
See www.defelsko.com/update
WARN NG:

15
Limited Warranty, ole Remedy
and Limited Liability
www.defelsko.com
© 2019 DeFelsko Corporation USA
All Rights Reserved
This manual is copyrighted with all rights reserved and may not be reproduced or transmitted,
in whole or part, by any means, without written permission from DeFelsko Corporation.
DeFelsko, PosiSoft and PosiTector are trademarks of DeFelsko Corporation registered in
the U.S. and in other countries. Other brand or product names are trademarks or registered
trademarks of their respective holders.
Every effort has been made to ensure that the information in this manual is accurate.
DeFelsko is not responsible for printing or clerical errors.
Before returning the Gage for service…
1. nstall new or newly recharged batteries in the proper
alignment as shown within battery compartment.
2. Examine the probe tip for dirt or damage.
3. Perform a Hard Reset (pg. 9) and a Zero (pg. 7).
4. f issue is not resolved, Update (pg. 14) your PosiTector
gage body and re-attempt measurements.
IMPORTANT:
f you must return the Gage for service, describe the problem
fully and include measurement results, if any. Be sure to also
include the probe, your company name, company contact,
telephone number and fax number or email address.
Website: www.defelsko.com/support
DeFelsko's sole warranty, remedy, and liability are the express
limited warranty, remedy, and limited liability that are set forth on
its website: www.defelsko.com/terms
Returning for ervice

Guía rápida v. 3.4
Ultrasonic Thickness Gage
los modelos Advanced

Las funciones del instrumento son controladas en base a menús.
Para accesar al Menú, encienda el equipo, luego presione el
botón de navegación central. Para navegar las opciones, utilice
las teclas arriba y abajo del boton central para moverse
verticalmente y luego para SELECCIONAR.
Presione el botón (+) para
cambiar página en un menu
de paginas mútiples.
Presione el botón (-) para
retornar al menú o a la
página anterior.
Seleccione Salir para
abandonar desde cualquier
menú.
Introducción
Introducción
El PosiTector UTG es un medidor de espesores ultrasónico
portátil que utiliza un principio no destructivo impulso/eco para
medir el espesor de paredes de una amplia variedad de
materiales. Está formado por un cuerpo (Standard o Advanced) y
una sonda.
Esta guía rápida resume las funciones básicas del equipo.
Descargue el manual de instrucciones en:
www.defelsko.com/manuals
El PosiTector UTG se enciende al pulsar el botón central .
Para ahorrar energía, el equipo se apagará tras unos 5 minutos
de inactividad. Se conservarán todas las configuraciones.
1. Retire el tapón protector de goma de la sonda.
2. Encienda el Medidor pulsando el botón central .
3. Ajuste a cero la sonda (consulte pág. 8)
4. Seleccione la velocidad correcta de sonido (consulte pág. 9)
5. Mida la pieza (consulte pág. 5)
Inicio rápido
Inicio rápido
1
Operacion del Menú
Operacion del Menú
Página Anterior
(Salir) Arriba Siguiente Página
Acceso al Menú
(Centro/Seleccione)
Abajo

2
Pantalla típica
Medida
actual
Selección de
material
actual o la
velocidad del
material
Unidad de
medida
El símbolo de acoplamiento aparecerá
cuando la sonda esté correctamente
colocada y sea posible la medición por
ultrasonido.
Icono
batería
Modo de medición
actualmente
configurado como
multieco
(Solo para sondas
UTG M / UTG P)
Cuando se enciende el Posi ector, éste determinará
automáticamente el tipo de sonda que está conectada
realizando enseguida una verificación interna.
Para desconectar la sonda del cuerpo del equipo,
deslice el conector de plástico de la sonda (siguiendo la
dirección de las flechas) separándola del cuerpo. Para
ensamblar una nueva sonda simplemente siga estos
mismos pasos en el orden inverso. o es necesario
apagar el instrumento durante el cambio de sondas.
Adicionalmente, el cuerpo del Posi ector es compatible
con una amplia variedad de sondas de tipo magnético,
eddy current, ultrasónica para espesor de película de
recubrimiento, perfil de superficie, condiciones
ambientales, dureza, contaminación por cloruros y
ultrasónicas para espesor de pared. Ver
www.defelsko.com/probes
Sondas
Sondas
pulgadas
Acero
0.200

3
•Posi ector UTG CA / UTG C – Sonda de elemento dual y eco
simple ideal para mediciones en materiales severamente
corroidos y erosionados. Los modelos PosiTector UTG CA
cuentan con un sensor integrado al cuerpo del equipo mientras
que los modelos PosiTector UTG C se caracterizan por tener el
sensor montado en el extremo de un cable de 1m (3ft).
•Posi ector UTG CX – Cuenta con las mismas especificaicnes
del sensor UTG C antes mencionado, pero además incluye un
cable resguardado con una manga de malla de acero inoxidable
trenzado y reforzado con liberadores de tensión para protección
en ambientes demandante.
•Posi ector UTG CLF – Sonda de elemento dual, eco simple
diseñada para medir materiales de alto espesor o atenuativos
como la fundición de hierro.
•Posi ector UTG M – Sonda de elemento simple, Eco Múltiple
con capacidad de medición Thru-Paint diseñado para medir
rápidamente y con precision el espesor de la pared metálica de
una estructura pintada sin retirar el recubrimiento.
•Posi ector UTG P – Sonda de element sencillo con selección
automática de modo de Eco Simple o Eco Múltiple dependiendo
del tipo y del espesor de material. Puede ser usado para medir
espesor de placa a través del recubrimiento (Thru-Paint). Ideal
para mediciones de alta resolución en plásticos y metals muy
delgados.
Las sondas Posi ector UTG estan disponibles
para una variedad de aplicaciones:
Las sondas Posi ector UTG transmiten un impulso ultrasónico al
material que va a medirse. Este impulso viaja a través del material
hacia su otra cara. Cuando encuentra una superficie como el aire
(cara posterior) u otro material, el impulso se refleja hacia la sonda.
La sonda mide el tiempo que requiere la propagación en el material,
representado por
t1 y t2 más abajo.
Sensores de espesor ultrasónico –
eoría de Operación