DeFelsko PosiTest AT-A User manual

Full Guide v. 5.0
PosiTest AT-A
(
automatic
)
PosiTest AT-M
(
manual
)
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4
Analysis of Test Results
Glue failures typically occur when the glue is improperly mixed or
the coated surface has not been adequately prepared (see pg.2).
Upon completion of the pull-off test, the dolly and coated surface
should be examined. In addition to pull-off force, many National
and International standards such as ASTM D4541 and ISO 4624
require the nature of the fracture to be recorded.
The PosiTest AT-A model provides an interface to document the
nature of the fracture for each pull-off test (see pg. 11). Fracture
results are included in test reports.
Glue failure: visible separation of the glue from itself,
the coating or dolly (no coating visible on the dolly face).
Dolly Face Coated Surface
Dolly
Glue
Cohesive fracture
(within a layer)
Adhesive fracture
(between layers)
Glue failure
(coating/glue)
Substrate
Adhesive fracture:
fracture occurs at the interface
between layers (coating on
dolly face differs from surface).
Cohesive fracture:
fracture occurs within a coating
layer (same coating on dolly
face and coated surface).
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5
Pump Handle
Display
USB Data Transfer /Power Port
Actuator Handle
Quick Coupling
Actuator
Assembly
Hose
Pump
Quick Guide
(1) Open pressure relief valve completely (turn counter clockwise)
(2) Connect the actuator to the dolly
(3) Close the pressure relief valve completely (turn clockwise)
(4) Zero - Press the button
(5) Pump pressure into the system until the dolly pulls
The PosiTest AT-M powers-up and displays dashes when the
button is pressed. To preserve battery life, the instrument
powers-down after 5 minutes of no activity.
1. Ensure the pressure relief
valve is completely open.
(turn counter clockwise)
OPEN
2. Push the actuator handle completely down into the actuator
assembly. Place the actuator over the dolly head and attach the
quick coupling to the dolly by reaching through the holes in the
actuator and lifting the coupling. Release the quick coupling when
the dolly head is completely engaged.
PosiTest AT-M Manual
Stand off
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PosiTest AT-M
As required, verify and adjust the dolly size by pressing the
button. Select the pressure units by pressing the button.
The instrument will maintain these settings even after the
button is pressed.
4. Zero the instrument
BEFORE
pumping by pressing the button.
This prepares the instrument for the test by clearing the
display, and zeroing the instrument.
5. Prime the pump slowly until the displayed reading approaches
the priming pressure. The priming pressure is the point that the
instrument begins calculating and displaying the pull rate. It is
also the pressure at which the ability to store readings is enabled.
Priming pressures for the various dolly diameters are:
For optimum results, prior to exceeding the priming pressure,
return the pump handle to its full upright position and then
complete a single continuous stroke at the desired pull rate until
the actuator separates the dolly from the coating.
6. Open the pressure relief valve and remove the dolly from the
actuator assembly.
7. Readings may be stored into memory by pressing the
button
(memory storage for up to 200 pulls)
. Press again to review
stored readings. Stored measurements can be accessed using
our PosiSoft 3.0 desktop software (pg. 18).
3. Close the pressure
relief valve on the pump
completely
(turn clockwise). CLOSE
10 mm 400 psi 2.8 MPa
14 mm 200 psi 1.4 MPa
20 mm 100 psi 0.7 MPa
(default setting)
50 mm 50 psi 0.4 MPa
6
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7
PosiTest AT-A Automatic
Touch Screen Display
USB Port
Quick Coupling
Actuator
Assembly
The PosiTest AT-A powers-up when the button is pressed.
To preserve battery life, the instrument powers-down after 5
minutes of no activity. Alternatively, press and hold the
button for 5 seconds or select Power Off from the menu.
Instrument functions are menu controlled. To access the Menu,
press the button. Navigate using the multifunction keypad
or touch screen display.
Multifunction Keypad
Directional buttons are used to navigate through
menu options and adjust parameters.
Access Menu / Select
Power On / Start Test / Return to Main View
Stop Test / Power-down (hold for 5 seconds)
Screen Capture: Press both buttons at any time to copy
and save an image copy of the the current display. The last 10
screen captures are stored in memory and can be accessed when
connected to a computer (see PosiSoft USB Drive pg. 15).
Note: Some menus display on more than a
single view. Use the or buttons or swipe
the touch display to switch between views.
AC Adapter Port
(Charges batteries
and powers
instrument)
Actuator
Handle
Hose
Stand off
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8
PosiTest AT-A
1. Push the actuator handle completely down into the actuator
assembly. Place the actuator over the dolly head and attach
the quick coupling to the dolly by reaching through the holes
in the actuator and lifting the coupling. Release the quick
coupling when the dolly head is completely engaged.
2. Press the button to power-up the instrument if necessary.
3. Verify Pull Parameters (pg. 13) are set to the preferred dolly
size,pull rate,pull limit and hold time. Change if necessary.
How to Measure
Carousel:
Indicates the current view. Swipe horizontally
or use arrow keys to switch between views.
Pull Parameters
(pg.11)
WiFi Bluetooth USB
(Status icons)
Pull Chart
displays
pressure
over time
Current
Reading
Touch Screen Display
If recording of test results is desired, a memory batch
must be opened prior to the test. Select New Batch from the
Memory menu (pg. 13).
NOTE:
Prepare the Instrument
Dolly
Size
Pull Rate Limit Hold Time
Use the touch screen to interact with menu options. Swipe
horizontally to navigate between views or vertically to move
between batch readings. Alternatively, the directional buttons can
be used for navigation.
Battery
(see pg.10)
Main View (shown with memory batch open)
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9
PosiTest AT-A
4. Press the button to initiate the test.
The instrument begins building pressure (priming stage) and a
green animated arrow (up) appears on the display. When the
priming pressure is achieved the LCD starts displaying pressure
over time on the pull chart. Refer to step 5 (pg. 6) for Priming
Pressures.
Pressure build-up stops when the dolly is pulled from the
surface, the pull limit has been reached or when the button
is pressed. The maximum pressure value will blink on the display
and a red animated arrow (down) will display while the pump
retracts the actuator.
Perform the Test
5. Remove the dolly from the actuator assembly.
6. Examine the dolly and surface to analyze the result (pg. 4).
Recording the Result
If a memory batch is open, the maximum pressure result is
automatically stored into memory (pg.13). Pass/fail, pull
parameters, date and time are also recorded.
The nature of the fracture (cohesive, adhesive, glue), batch and
reading notes can also be recorded. Swipe the touch screen
horizontally or use the left/right buttons to navigate to the
appropriate view and select Edit. See Memory Views (pg. 10).
All stored measurement data can be accessed using PosiSoft
solutions or the PosiTector App (pg. 18).
Setting a Pull Limit or stopping the test before a fracture
occurs is useful when the coating strength exceeds specified
requirements.
NOTE:
CAUTION: To avoid injury, keep fingers away from the
quick coupling and actuator assembly until the pull test
has completed and the actuator has been fully retracted. Press the
stop button to abort the pull test at any time.
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10
Memory Views (carousel)
Main View Reading Summary
Reading NoteLayer/Fracture Batch Note
When a memory batch (pg. 13) is open, a carousel appears at the
top of the display. Views are represented by dots, the solid dot
indicates the current view.
Swipe horizontally to navigate between views or vertically to move
between batch readings. Alternatively, the directional buttons can
be used for navigation. Six views are available:
PosiTest AT-A
Reading List
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11
Recording the Nature of the Fracture
Dolly Face Coated Surface
Layer 2
Layer 1
Layer 2: 50% Cohesive (C)
Layer 1: 50% Cohesive (B)
The cohesive and adhesive fracture visual analysis can be
recorded using the PosiTest AT-A's keypad or touch screen
display. Alternatively, the information can be reported using the
PosiTector App (pg. 18).
Fractures are visually estimated and recorded as a percent of
each. The two layer example below illustrates a cohesive fracture
within coating layer 1 and layer 2 (visually estimated at 50% each).
Recorded results are included in reports.
PosiTest AT-A
The PosiTest AT-A can record fracture information for up to five
layers.
Cohesive and adhesive fractures are identified as follows:
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12
100% cohesive fracture at D/E coating interface (layer 3/layer 4)
70% cohesive failure within layer 1; 30% cohesive within layer 2
PosiTest AT-A
Examples:
Select Edit to set the number of layers
and cohesive/adhesive fracture details.
Use the buttons to adjust.
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13
Memory Menu
New Batch
Open
Close
Delete
Closes any currently opened batch and creates a new memor
y
batch, named using the lowest available number (example: B2
)
.
New batches are date stamped when they are created.
PosiTest AT-A
The PosiTest AT-A stores 100,000 readings in up to 1,000 batches
.
Stored measurements can be reviewed on-screen or accessed vi
a
computers, tablets and smart phones.
For further details on memory options, refer to the full
instruction manual at:
NOTE:
Selects a previously created batch to open and make current.
Stops the recording process, closes the current batch, and
removes batch information from the display.
Removes a batch and associated measurements from memory.
Setup Menu
Pull Parameters
Dolly Size: Select the dolly size being utilized for the test (10,
14, 20 or 50 mm)
Rate: User selectable pull rate (unit/sec). Specified rate is
maintained for the duration of the test.
Limit: Pressure will build-up until the set Limit is reached or th
e
dolly is pulled from the surface, whichever occurs first. By defaul
t
,
the instrument will pull to maximum for selected dolly size (se
e
Technical Specifications pg. 16).
Select desired parameter using the buttons or touch
screen. Use the and buttons to adjust.
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14
Orientation
Units
Gage Info
Displays the model number & serial number, PosiSoft.net
registration key, the amount of remaining memory for storage of
readings, date and time, and software packages.
For security purposes, the registration key is required to add the
Gage to your PosiSoft.net account (pg. 14).
Converts the display from psi, MPa, N/mm2or Newtons (unit of
force). Existing measurements in memory are not converted.
Switching units closes Memory.
Rotates display between landscape (default) or portrait views.
Ideal for use in horizontal or vertical positions.
Restores factory settings and returns the instrument to a known
condition. The following occurs:
- All batches, stored readings, notes, batch names and screen
captures are erased.
- Menu settings are returned to the following:
Memory = OFF
Pull Parameters = default
Orientation = Landscape
Bluetooth = ON
WiFi = OFF
USB Drive = ON
Date, Time and WiFi are not affected by a Reset.
NOTE:
Units = psi
Backlight = Sun
Language = English
Hold Time:
(up to 60 seconds)
pressure is maintained
(held) at defined Limit.
Default: 0 seconds.
Hold Time is
displayed on
the pull chart
(shaded area).
Defined
Hold Time
PosiTest AT-A
Reset
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15
The instrument automatically attempts synchronization with
PosiSoft.net when initially connected via USB to a PC running
PosiSoft Desktop Manager.
Additional measurements added to memory while
connected are synchronized only when the USB cable is
disconnected, then reconnected or when the Sync Now option is
selected.
Connect Menu
The instrument uses a USB mass storage device which provides a
simple interface to retrieve data in a manner similar to USB flash
drives, cameras or digital audio players.
When checked, any computer can view readings stored in memory
by navigating a virtual drive labeled “PosiTest” using the included
USB cable.
A formatted HTML report is viewed by selecting the "index.html" or
“START_HERE.html” file found in the root directory. Optionally, text
".txt" files located in each batch folder provide access to
measurement values. Stored readings and graphs can be viewed
or copied using universal PC/Mac web browsers or file explorers.
The last 10 screen captures (pg. 7) stored in memory can be
accessed by navigating to the “screen_capture” directory.
When your PosiTest AT-A is first connected to your Windows PC
via a USB cable, an enumeration process is started that installs
device drivers without re-booting your computer. You may see
several pop-up windows in the taskbar at the bottom right of your
screen. Wait for the entire process to be completed before
proceeding.
USB Drive
PosiSoft.net
PosiTest AT-A
Select Sync Now to immediately synchronize stored
measurement data via USB or WiFi to PosiSoft.net (pg.14).
PosiSoft Desktop Manager and an internet connection are
required when using USB.
NOTE:
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16
Allows communication with a smart device running the PosiTecto
r
App (pg.18) via wireless technology. No pairin
g
required. When connected, measurement data is automatical
l
y
transfered. Select Send Batch to manually transfer batche
s
(useful when switching between smart devices).
WiFi technology wirelessly communicates with PosiSoft.ne
t
,
downloads software updates, and provides access the PosiTes
t
AT-A’s stored measurement data using standard web browsers.
On/Off : Turns WiFi functionality On. Press it again t
o
deactivate WiFi.
Networks: Available networks detected by the instrument ar
e
listed on the screen along with any networks that have previousl
y
been connected to that are not currently within connection range
.
If the network is secure, the password must be entered (if unknown
,
contact the Network Administrator). Use the QWERTY keyboard t
o
enter the password, then press OK. Select Connect to establish th
e
WiFi connection. When connected the icon will appear on th
e
display.
Information: Displays information about the local WiFi networ
k
connection including...
-SSID: the network’s name
-State: displays if the Gage is connected to the network or not
-IP Address: the IP Address provided by the network
-IP Settings: allows manual entry of network information
Any WiFi enabled device connected to the same network can view th
e
PosiTest AT-A’s built-in mass storage drive. Using your device’s we
b
browser, enter the IP address of your PosiTest AT-A to access th
e
drive. For complete details see:
WiFi
Bluetooth Smart
PosiTest AT-
A
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18
Accessing Stored Measurement Data
PosiSoft 3.0 - Desktop software for downloading, viewing
,
printing and storing measurement data.
Customizable reporting tools allow you to add pictures an
d
screen captures, notes and annotations, add or remove section
s
(drag and drop), change headings and more. Save your custom
layouts as templates for future use.
PosiSoft solutions for viewing, analyzing and reporting data:
PosiTest AT (all models)
PosiSoft USB Drive - connect to a PC/Mac using the supplie
d
USB cable to access and print stored readings, graphs, note
s
and screen captures. No software or internet connectio
n
required. USB Drive must be selected. (see pg.15)
PosiSoft.net - a free web-based application offering secur
e
centralized storage of instrument readings. Access your dat
a
from any web connected device. Go to:
PosiTector App - Wirelessly transfer measurement data to you
r
Apple iOS or Android smart device. Create, customize an
d
share professional PDF reports quickly and easily. Ad
d
notes, images, nature of the frature and more. Th
e
PosiTector App is available on the iTunes App Store an
d
Google Play.
PosiTest AT-A
In addition to PosiSoft 3.0, the PosiTest AT-A is also compatible
with the following solutions...
For more information on the PosiSoft suite of software, visit:
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19
Power Supply / Charging
PosiTest AT-M (manual)
Power Source: Built-in rechargeable NiMH battery**
~60 hours continuous with full charge
The built-in rechargeable NiMH batteries are charged using the
included USB AC power supply/charger. Ensure batteries are
charged prior to use. The battery icon will blink while the
instrument is charging and disappear when fully charged. The
charging process will take up to 14 hours depending on remaining
battery power.
Alternatively, the AC power supply or any computer USB port can
be used to power and charge the instrument.
**Do not attempt to remove or replace the PosiTest AT-M internal NiMH
battery pack. In the unlikely event power issues are experienced,
please contact our technical support for assistance.
PosiTest AT-A (automatic)
Power Source: Built-in rechargeable NiMH battery
>200 pulls with full charge
The built-in rechargeable NiMH batteries are charged using the
included AC power supply/charger. Ensure batteries are charged
prior to use. The USB port will not charge or power the PosiTest
AT-A.
The charging process will take 2-3 hours depending on remaining
battery power. Alternatively, the AC power supply can be used to
power the instrument.
The icon will display while the instrument is charging.
When fully charged the icon will appear.
The PosiTest AT-A internal NiMH battery pack is user
replaceable. In the unlikely event power issues are experienced,
please contact our technical support or your local dealer for OEM
battery pricing, availability and detailed replacement instructions.
NOTE:
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