ADHESION/RELEAS E TESTER
MODEL AR-2000
OPERATING INSTRUCTIONS
CHEMINSTRUMENTS
510 COMMERCIAL DRIVE
FAIRFIELD, OHIO 45014
(513) 860-1598
www.cheminstruments.com
Revision 1.2
May 12 , 2017
CONTENTS
PRODUCT DESCRIPTION ............................................................................................. 3
SPECIFICATIONS ................................................................................................ 3
UNPACKING ................................................................................................................... 4
ASSEMBLY ..................................................................................................................... 5
ATTACHING MAST AND LOAD CELL ASSEMBL Y ............................................ 6
ATTACHING SWITCHES ..................................................................................... 8
CONNECTING THE POWER CORD ................................................................... 8
KEY COMPONENTS .................................................................................................... 10
OPERATION ................................................................................................................. 13
POWER UP ........................................................................................................ 13
TOUCH SCREEN FORMAT ............................................................................... 14
MACHINE SETUP .............................................................................................. 17
PEEL RATE GEOMETRY/DISCUSSION ........................................................... 22
RUNNING A TEST ............................................................................................. 24
EZ DATA ....................................................................................................................... 29
MAINTENANCE ............................................................................................................ 32
TROUBLESHOOTING ....................................................................................... 32
MAINTENANCE PROCEDURES ....................................................................... 33
CLEANING THE TOUCH SCREEN ................................................................... 35
Adhesion/Release Tester Operating Instructions (AR-2000)
2 | Page
PRODUCT DESCRI PTION
Electrical
120 VAC, 50/60 Hz, 5 amps or 240 VAC, 50/60 Hz, 5 amps
Temperature
Humidity
0 – 55% relative humidity
3 – 3048 centimeters/minute (1 centimeter increments)
Weight: 92 pounds (42 kilograms)
Congratulations on the purchase of your new ChemInstruments AR-2000
Adhesion/Release Tester. This versatile, user-friendly, carefully designed instrument
allows you to determine adhesion and release values of adhesive laminates at various
speeds and at various angles of separation.
WARNING: This equipment can cause injury if not used properly. It is
the operator’s responsibility to observe all safety rules and warnings.
The unit has the following features:
• 2 modes of operation: constant speed and ramped speed testing.
• Selectable testing speeds.
• Selectable separation angles from 90 degrees to 180 degrees.
• User-selectable data acquisi ti on area on the tes t sa mple .
• Selectable units of measur e: K il og r ams, Gra ms, Newtons, Pounds, & Ounces.
• Compatible with EZ Data System software. See www.cheminstruments.com for
details.
SPECIFICATIONS
Operating
32 – 150 degrees Fahrenheit (0 – 70 degrees Celsius)
Speed 1 – 1200 inches/minute (1 inch increments)
Physical
Dimensions
Width: 36 inches (91 centimeters)
Depth: 13 inches (33 centimeters)
Height: 24 inches (61 centimeters)
Adhesion/Release Tester Operating Instructions (AR-2000)
3 | Page
UNPACKING
ChemInstruments has made every effort to ensure that the AR-2000 arrives at your
location without damage. Carefully unpack the instrument and check for any damage
that may have occurred during shipment. If any damage did occur during transit, notify
the carrier immediately.
The ChemInstruments AR-2000 consists of the following parts:
• The test frame, which includes the motor/drive mechanism and the data
acquisition system.
• An envelope with this manual.
• The mast for mounting the load cell assembly.(Strapped to the wood 2x2
bracing)
Within the crate is a small box containing the following parts:
• The pivoting bracket and attached load cell assembly with calibration bracket and
wire.
• Power cord.
Make sure all of these components are present before discarding packaging material.
Adhesion/Release Tester Operating Instructions (AR-2000)
4 | Page
ASSEMBLY
WARNING: Due to its weight and size, use two people to move the AR-
2000.
Carefully remove the test frame/drive/data acq ui s it ion asse mbl y from the packaging and
set them on a sturdy bench top. Check the physical dimensions listed previously for the
space required for the instrument. As with any precision piece of laboratory equipment,
it is preferable to locate the AR-2000 in an area where temperature and humidity are
controlled to standard conditions of 72 ± 2 degrees Fahrenheit and 50 ± 5% relative
humidity.
Adhesion/Release Tester Operating Instructions (AR-2000)
5 | Page
ATTACHING MAST AND LOAD CELL ASSEMBLY
Figure 1 - Mast Mounting Locations
BAC K P ANEL
B
C
Attach the mast to the test frame using the small clamping knobs that are included.
Make sure the mast is mounted with the flat side on the backside as shown in Figure 2.
The attachment holes for the mast are located on the back panel of the test fra me
toward the left end of the frame when viewed from the back.
NOTE: If the tests to be run use relatively short sample strips at 90° or 180°, mount the
mast using the holes marked “C” in Figure 1. If testing longer strips, mount the mast
using holes marked “B” in Figure 1.
Slide the pivoting bracket with load cell assembly onto the mast and tighten the large
clamping bolt that is part of the assembly. On the side panel of the AR-2000, one end
of the load cell cable is permanently attached. Plug the free end of this cable into the
socket on the load cell assembly. (See Figure 2)
Adhesion/Release Tester Operating Instructions (AR-2000)
6 | Page
Bracket
Assembly
of Mast
Home
Switch
Start
Switch
Stop
Switch
Pivoting
Load Cell
Flat side
Figure 2
Adhesion/Release Tester Operating Instructions (AR-2000)
Clamping
Knobs
7 | Page
ATTACHING SWIT CHES
One end of the control cable is also permanently attached to the side panel of the
control cabinet. The free end of this cable terminates in three white reed switches,
marked “Home”, “Start” and “Stop”. Each of these reed switches carries a piece of
Velcro® fastener that is designed to attach to the fastener tape located on the back rail
of the test frame. Attach the reed switch marked “Home” to this tape at the right end of
the test frame. Attach the reed switch marked “Start” to this tape at a location
approximately 2 inches to the left of the “Home” switch. Attach the reed switch marked
“Stop” to this tape at a location approximately even with the side of the control cabinet.
See Figure 2 for switch locations.
CONNECTING THE POWER CORD
WARNING: Make sure the power source matches the requirements of the
Adhesion Release Tester. Damage will occur if this unit is plugged into
the incorrect power supply. The AR-2000 is NOT a dual voltage machine.
Connect the power cord to its receptacle on the backside of the control cabinet at the far
right side when viewed from the rear. Complete the connection by inserting the male
end of the power cord into a convenient AC outlet. Notice that the on/off power switch
is located directly beside the power cord receptacle on the backside of the test frame.
Adhesion/Release Tester Operating Instructions (AR-2000)
8 | Page
Power
Power
Switch
Figure 3
WARNING: Before proceeding with using the AR-2000, it is advisable to
become familiar with the Key Components. These Key Components and
a brief description of their function follow in the next section.
9 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
KEY COMPONENTS
Clutch
Handle
Test
Sled
Edge
Brackets
Mast
• POWER SWITCH is located on the back panel of the control cabinet directly
beside the power cord connection. (See Figure 3)
• FUNCTION SWITCHES control the start and stop of data acquisition. The
“Home” switch cycles the data acquisition unit into its “ready” mode. The “Start”
switch starts the data acquisition and the “Stop” switch stops the data acquisition.
(See Figure 2)
• TEST SLED provides a surface to hold the test material.
• EDGE BRACKETS hold test panels in place on the test sled.
• CLUTCH HANDLE engages and disengages the test sled with the drive chain.
The clutch handle is disengaged when the handle is to the left. The clutch
handle is engaged when the handle is to the right. The clutch handle is
disengaged in the photo below.
• MAST holds the pivoting bracket with load cell assembly and permits running
tests at angles between 90° and 180°. A small peg on the backside of the mast
allows for convenient positioning of the load cell for testing at a 180° angle.
10 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
• LOAD CELL measures the forces involved with an Adhesion/Release test.
Grip
Calibration
Wire
Calibration
Bracket
Load Cell
• LOAD CELL ASSEMBLY consists of the mounting bracket for the load cell with
grip.
• GRIP secures the free end of the test strip to the load cell.
• CALIBRATION BRACKET and C ALIBRATION WIRE are used in the load cell
calibration process.
Assembly
Adhesion/Release Tester Operating Instructions (AR-2000)
11 | Page
• TOUCH SCREEN DISPLAY is the control center for the AR-2000.
Adhesion/Release Tester Operating Instructions (AR-2000)
12 | Page
OPERATION
A pressure-sensitive adhesive laminate sample is peeled at a selected angle (typically
90° or 180°) and at a selected speed (from 1 - 1200 inches per minute). An electronic
load cell measures the peel/release force, then feeds the information to a data
acquisition unit. Movable reed switches are positioned along the test bed and
determine the portion of the test sample data to be recorded by the data acquisition unit.
The data acquisition unit collects the selected portion of test data from the load cell and
stores these data points in memory for use in calculating the maximum, minimum and
average values.
A load cell measures the force as the test material is peeled. The load cell samples at
400 times per second. Eight samples are collected, averaged, and stored as a data
point. Therefore, a test will generate data points every 20 milliseconds.
A maximum of 10,000 data points can be saved with any given test.
POWER UP
WARNING: Operating temperature for this equipme nt is 32 to 150 degrees
Fahrenheit (0 to 70 degrees Celsius). The equipment needs to be
completely free of condensation, inside and out, before applying power.
Turn on the master power switch located on the back panel of the control cabinet next
to the power line receptacle. The internal control board will go through a self-test and
then as a safety measure will not start the chain drive until the user selects the START
MOTOR button on the touch screen.
Adhesion/Release Tester Operating Instructions (AR-2000)
13 | Page
TOUCH SCREEN FORM AT
MAIN SCREEN
• Current Load – displays the force currently measured by the load cell.
• Current Speed – displays the set speed of the chain.
• Setup – will display all setup options.
• Graph – will display the graph, minimum, maximum, and aver ag e values o f the
last test.
• Statistics – will display the minimum, maximum, average, variance, standard
deviation, and work of the last test.
SETUP SCREEN
• Calibrate Load Cell – is used to calibrate the load cell.
• Units – is used to change the force units and/or the speed units.
• Speed/Ramp Setup – is used to set the sle d s pee d or ra mp para me t ers .
• Mode – is used to select the constant speed mode or ramp mode.
• Halt Mode – is used to turn on/off automatically stopping the motor after 2
minutes of inactivity. This is only applicable in Constant Speed Mode.
• Hardware Tools – is used to troubleshoot hardware problems with the AR-2000.
• About – is used to retrieve the machine’s software version and control board’s
hardware revision.
If there are 30 seconds of no screen or test activity when in any of the setup screens
except the hardware tools screen, then the machine will exit the setup screen and return
to the main screen.
14 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
GRAPH SCREEN
The graph screen will display the graph, minimum, maximum, and average values of the
last test. Touch anywhere on the screen to exit the graph screen and return to the main
screen.
Adhesion/Release Tester Operating Instructions (AR-2000)
15 | Page
STATISTICS SCREEN
The statistics screen will display the minimum, maximum, average, variance, standard
deviation, and work of the last test.
Adhesion/Release Tester Operating Instructions (AR-2000)
16 | Page
MACHINE SETUP
LO AD C EL L CAL I BR AT I ON
It is important to calibrate the load cell to ensure that reliable data will be gathered. A
calibration procedure is built into the software of the AR-2000. This procedure should
be followed upon first use of the AR-2000 and whenever necessary thereafter. The
following is the step-by-step procedure for calibrating the load cell.
MAKE SURE THE AR-2000 HAS BEEN ON FOR 30 MINUTES BEFORE
PROCEEDING WITH CALIBRATION.
LOAD CELL CALIBRATION PROCEDURE
1. Move the pivot head assembly containing the load cell assembly to a position
approximately 8 inches above the surface of the test frame.
2. Confirm that the load cell is mounted at the same angle as the test angle.
3. Attach the calibration fixture onto the bottom of the load cell mount using the two
small bolts.
Adhesion/Release Tester Operating Instructions (AR-2000)
17 | Page
4. Place the knotted end of the calibration wire in the jaw of the grip taking care to
keep the wire in a straight line from the grip to the pulley. Run the wire over the
pulley so that a calibration weight can be attached to the end of the wire.
5. Select SETUP from the main screen.
6. Select CALIBRATE LOAD CELL from the setup screen.
7. The first screen in the calibr at ion pr oc ess des c r i bes the 2 point cali b r ati on
process. Select OK to continue.
8. The next screen measures the low calibration value desired (typically 0). Make
sure that you do not have a weight hanging from the calibration string and select
OK.
9. The next screen measures the high calibration value desired. This weight should
be close to the maximum expected test value. Hang the weight on the loop end
of the calibration wire making sure that the wire is able to move freely.
10. Set the high calibration value by selecting CHANGE and entering the value of the
weight in grams and select ENTER.
11. Make sure that the calibration weight is completely at rest and then select OK.
12. The display will show the main screen and the current reading of force will be
displayed under CURRENT LOAD.
13. Verify the calibration by hanging a different calibration weight on the calibration
wire.
14. Turn motor on. Engage the test sled to simulate running a test. After the test
sled has traveled to the left of the stop switch, confirm that the average
measured force is the same as the selected weight hanging from the calibration
string.
15. Repeat the calibration procedure if necessary.
16. Remove calibration bracket and calibration wire when finished with the calibration
procedure.
Adhesion/Release Tester Operating Instructions (AR-2000)
18 | Page
MODE
The AR-2000 can be operated in a constant speed mode or a ramp mode. The
following is a step-by-step procedure for setting the mode.
1. Select SETUP from the main screen.
2. Select MODE from the setup screen.
3. Select the desired mode. Select OK to confirm the entered mode.
SETTING SPEED
NOTE: The unit of measure for speed can be changed by selecting UNITS from
the setup screen.
Constant Speed Mode
To perform a test correctly, it is necessary to set the sled speed in accordance with the
selected test method. The following is a step-by-step procedure for setting the sled
speed in constant speed mode.
1. Select SETUP from the main screen.
2. Select SPEED from the setup screen.
3. Select CHANGE and enter the desired sled speed in the selected units and press
ENTER. Select OK to confirm the entered speed.
Ramp Speed Mode
The following is a step-by-step procedure for setting the ramp speed mode parameters.
1. Select SETUP from the main screen.
2. Select RAMP SETUP from the setup screen.
3. Select the box next to each parameter to enter a screen which allows you to
change the value of the parameter. Select ENTER or OK to confirm the
parameter.
Adhesion/Release Tester Operating Instructions (AR-2000)
19 | Page
Definition of Ramp Parameters:
• Start Force is the force that must be measured by the load cell before the ramp
will begin. The machine speed will be 5 inches/minute while trying to find the
start force. If Start Force is set to zero then the ramp will begin as soon as the
START TEST button is pressed.
• Start Speed is the speed for the first step of the ramp test.
• Speed Increment is the amount that the speed is incremented for each step of
the ramp.
• Time at each step is the amount of time that the system will stay at the given
speed.
• Number of steps is the number of different speed levels for the ramp test.
SETTING FORCE AND SPEED UNI TS
Force and speed units can be changed with the following procedure.
1. Select SETUP from the main screen.
2. Select UNITS from the setup screen.
3. Select the desired units and select OK to confirm the entered units.
20 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
LOCATING FUNCTION S WITCHES FOR CONSTANT SPEED MODE
To record test data properly, it is necessary to position the function switches so that the
data collected is from the center of the test material. The following is the step-by-step
procedure for locating the function switches.
1. Determine the test method to be followed and the position of the sled for the start
of the test.
2. Place the HOME switch so that it is aligned with the magnet on the back of the
sled when the Sled is at the starting position.
3. Place the START switch at least 1.5 inches to the left of th e HOME switch.
4. Place the STOP switch far enough to the left of the START switch, to gather all
the test data.
5. Adjust the function switches’ location so that the “heart” of the test material is the
data collected. A few practice tests with similar size samples are advised.
NOTE: As the test sled moves past the START switch, the display status will
show “Collecting test data”. The display will continue to update the current l oad
as the test data is collected.
21 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
PEEL RATE GEOMETRY/DISCUSSION
AR-2000 PEEL RATE GEOMETRY
• Refer to the diagram below
• Crosshead Rate = Hypotenuse (This is the speed set on machine c o ntr ol )
• Peel Rate = Load Cell Leg
• Load cell angle of triangle = ɵ = 45˚ (based on 90˚ peel test)
• Formula to solve for load cell leg of triangle:
o Peel Rate = Cos (ɵ) * Crosshead Rate
• Using a Crosshead Rate of 12 inches/minute
• Peel Rate = Cos (ɵ) * 12, where cos(45˚) is 0.707
• The Peel Rate equals 8.5 inches/minute for a Crosshead Rate of 12
inches/minute
AR-2000 PEEL RATE DISCUSSION
There is a difference in the peel rate with regards to using a 90˚ fixture on a Tensile
machine versus a sled type machine such as the ChemInstruments model AR-2000. If
both devices are set to operate at the same speed, the Tensile machine will peel a tape
at that same rate, but the AR-2000 will peel a tape slower.
22 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
The term Peel Rate describes the separation rate at the peel junction, the point where
tape separation from a test panel occurs.
The term Crosshead R at e describes the rate of the mechanism that move the test
panel.
Consider a triangle that makes up the pulling and peeling functions on a Tensile
machine. The peel and crosshead rates are equal since the peeling action is performed
in the horizontal leg of the triangle and motion occurs in the vertical leg. Since the
triangle is a right triangle when performing a 90˚ peel, the legs are equal and thus so is
the Peel Rate with respect to the Crosshead Rate.
Consider a triangle that makes up the pulling and peeling functions on an AR-2000
machine. The peel and crosshead rate are not equal since the peeling action is
performed in the load cell leg of the triangle and motion occurs in the hypotenuse. The
Peel Rate is therefore a factor of the angle between the load cell leg and the
hypotenuse, simple trigonometry applies here. Since the triangle is a right triangle
when performing a 90˚ peel, the load cell leg is shorter than the hypotenuse and thus
the Peel Rate is less with respect to the Crosshead Rate. Knowing the 90˚ angle of
peel and using a Crosshead Rate of 12 inches/minute, the math in the above noted
example works out to a Peel Rate of 8.5 inches/ minute.
Therefore, general formulas for a sled type machine such as the ChemInstruments AR2000 is thus:
Peel Rate = 0.707 * Crosshead Rate
Crosshead Rate = Peel Rate / 0.707
Adhesion/Release Tester Operating Instructions (AR-2000)
23 | Page
RUNNING A TEST
Peel adhesion tests run according to written test methods, such as ASTM, PSTC, TLMI
and others. These tests are conducted to determine the peel adhesion values of the
selected PSA material as it is removed from a stainless steel test panel. The AR-2000
will accommodate test panel dimensions of 2” wide by 5” or 6” in length. For both a 90
degree and 180 degree test method you will need to attach the panel edge brackets to
the test sled, using the four small bolts and the holes closest to the left end of the test
sled. Be sure that the recessed area of the edge brackets face to the inside and that
the closed ends are to the right. This will allow the test panel to slide easily into the
edge brackets from the left side.
180 DEGREE TESTS
For a 180° peel test, the test sled and the load cell must be in the horizontal position,
with the load cell assembly at the lowest position on the mast.
NOTE: Make sure that the load cell has been calibrated at this 180 degree angle.
Adhesion/Release Tester Operating Instructions (AR-2000)
24 | Page
90 DEGREE TESTS
For a 90° peel test, loosen the clamping bolt on the rear of the pivot head assembly and
slide the bracket up the mast. Retighten the clamping bolt then loosen the opposite
clamping bolt on the front of the load cell assembly. Tilt the load cell assembly
counterclockwise until it snaps into a detent. Tighten the front clamping bolt. The load
cell will now be at a 90° angle to the raised test sled.
NOTE: Make sure that the load cell has been calibrated at this 90 degree angle.
Adhesion/Release Tester Operating Instructions (AR-2000)
25 | Page
TEST ANGLES BETWEEN 90 AND 180 DEGREE TESTS
Test angles between 90 and 180 degrees can be established using the following setup
formula.
1. Determine the angle desired for the test method to be performed.
2. The angle for the test sled and the load cell (A) will be equal. This angle is
determined by dividing the desired test angle by 2. This result is the angle (A)
that is used in setting the test sled and the load cell.
3. Run your test as described in the following test procedure.
NOTE: Make sure that the load cell has been calibrated at the proper angle (A)
before proceeding with the test procedure.
TEST PROCEDURE – CONSTANT SPEED MODE
1. Slide the test panel with the test material into the edge brackets so that the free
end of the test strip is to the left. Bend the free end of the test strip back over the
end of the test strip and insert it into the grip. (See Grip Operation)
2. Set the test sled speed if necessary. (See Setting Speed)
3. Make sure the AR-2000 is NOT in the SETUP screen.
Adhesion/Release Tester Operating Instructions (AR-2000)
26 | Page
4. Turn the clutch handle on the test sled to the left to disengage it from the drive
chain and move the sled to the start position at the right end of the test bed.
NOTE: In order for the test data to be collected properly it is important that the
Test Sled be positioned to trigger the HOME Switch prior to engaging the Test
Sled.
5. Make sure that the chain is moving. If it is not moving, press the START
MOTOR button on the main screen of the AR-2000.
6. Engage the test sled by rotating the clutch handle clockwise. As the test sled
moves past the START switch the status will display “Collecting test data”.
7. When the test sled has moved past the STOP switch, the graph screen will be
displayed to show the graph, minimum, maximum, and average of the test data
collected.
8. To run additional tests, replace the test material and repeat the procedure
starting at step 4. It is not necessary to enter any Control key commands if the
same test method is to be repeated.
NOTE: The units of measure for force can be changed by selecting SETUP and
then selecting UNITS. Select the unit of measure desired and then select OK.
TEST PROCEDURE – RAMP MODE
1. Slide the test panel with the test material into the edge brackets so that the free
end of the test strip is to the left. Bend the free end of the test strip back over the
end of the test strip and insert it into the grip. (See Grip Operation)
2. Set the test ramp parameters if necessary. (See Setting Speed)
3. Make sure the AR-2000 is NOT in the SETUP screen.
4. Turn the clutch handle on the test sled to the left to disengage it from the drive
chain and move the sled to the start position at the right end of the test bed.
5. Press the START TEST button.
6. Engage the test sled by rotating the clutch handle clockwise.
7. If the START FORCE setting is greater than 0 grams then the machine will move
at 5 inches per minute until the START FORCE is measured by the load cell.
8. The test will continue for all defined steps at the required speed for the given test
length.
Adhesion/Release Tester Operating Instructions (AR-2000)
27 | Page
9. When the ramp test is complete, the graph screen will be displayed to show the
graph, minimum, maximum, and average of the test data collected.
10. To run additional tests, replace the test material and repeat the procedure
starting at step 4. It is not necessary to enter any Control key commands if the
same test method is to be repeated.
NOTE: The units of measure for force can be changed by selecting SETUP and
then selecting UNITS. Select the unit of measure desired and then select OK.
GRIP OPERATION
The grip opens by turning the thumb screw counter-clockwise. Insert the free end of the
sample into the open grip and close the grip by turning the thumb screw clockwise.
NOTE: The grip is attached directly to the load cell. Do not move the grip
sideways or up and down. When opening and closing the grip, support it with
one hand and operate the thumb screw with the other hand to avoid damaging
the load cell. For proper operation of the load cell it is necessary for the grip to
be mounted with a space between the load cell housing and the grip. DO NOT
TIGHTEN THE GRIP AGAINST THE LOAD CELL HOUSING.
WARNING: Rotating the Grip on the threaded mounting rod, causing the Gri p
to come in contact with the wall of the load cell housing will damage the
load cell. There must be a physical gap maintained between the Grip
and the load cell housing for the load cell to function correctly.
28 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
EZ DATA
USB
Connection
EZ Data is a ChemInstruments program that runs on your computer and will allow you
to interface to your ChemInstruments machine in order to save test data files, sav e raw
test data to excel, graph and crop test data, tabulate test data files, and overlay test
data files. Please refer to the EZ Data manual for specific information on how to use EZ
Data.
The AR-2000 can be connected to your computer with a Type A-B, R evision 2.0
Compliant, USB cable.
29 | Page
Adhesion/Release Tester Operating Instructions (AR-2000)
The following 2 pictures are the main screen of E Z Data with an AR-2000 connected.
This screen will show the current load as a value and a real time graph as data is
collected from the load cell. It shows the test setup parameters for constant speed
mode and ramp speed mode. It will also allow you to change the test parameters.
Adhesion/Release Tester Operating Instructions (AR-2000)
30 | Page
AR-2000 parameter setup in constant speed mode.
AR-2000 parameter setup in ramp speed mode.
Adhesion/Release Tester Operating Instructions (AR-2000)
31 | Page
MAINTENANCE
Problem
Possible Cause
Procedure
No Data collected
HOME switch not tripped
Reposition HOME switch
and STOP switches
test
Magnet missing on test sled
Reattach magnet to test sled
of adjustment
Engaging Finger
Bad calibration
Refer to load cell calibration
Calibration drifts
Bad or damaged load cell
Replace load cell
Display is black.
Display is bad.
Replace display.
Power switch is not ON.
Turn ON power.
Power supply is bad.
Replace power supply.
logo.
TROUBLESHOOTING
The troubleshooting chart describes some problems that may occur over time. After
determining the problem, follow one of the following maintenance procedur es.
Troubleshooting Chart
START switch too close to
HOME or STOP switch
Move START switch at least
1.5 inches away from HOME
Display is in SETUP screen Go to MAIN screen to run a
Test sled skips Loose chain
Test sled engaging finger out
Data measurement
Improper calibration
consistently low/high
Refer to Chain Tightening
Refer to Adjusting Test Sled
Check calibration and/or
calibration angle
Display is stuck at
ChemInstruments
Adhesion/Release Tester Operating Instructions (AR-2000)
Control board is bad. Replace control board.
32 | Page
MAINTENANCE PROCEDURES
As with any precision equipment it is important to provide care and maintenance to
ensure proper performance and long life. The following section will address certain
procedures for making changes in the AR-2000 and providing care for proper operation.
MEC H ANI C AL M AIN T EN AN CE SCHEDU LE
The AR-2000 Adhesion/Release tester is a durable and well-designed piece of testing
equipment requiring only minimal maintenance. In addition to normal and weekly
general cleaning, ChemInstruments recommends that the following additional steps be
performed on a monthly basis or as required.
• Check and adjust, as needed the drive chain.
• Lubricate the drive chain with a chain oil.
• Clean linear rods.
• Check and adjust the engaging finger on the test sled.
• Clean and lubricate the drive & idler shafts and their bronze bearings.
These simple steps, if performed regularly, can ensure the continued reliable
performance of your AR-2000 Adhesion/Release tester .
CHAIN ADJUSTMENT
After an extended period of use the chain on the AR-2000’s drive will stretch. This can
cause undo vibration and improper drive for the test sled. This chain can be easily
adjusted by performing the following procedure.
1. Make sure the AR-2000 has been turned off and unplugged from the electrical
outlet.
2. Remove the top guard in order to gain access to the four locking bolts on the
bearing slide.
3. With a 7/32 Allen wrench loosen the four locking bolts on the bearing slide.
4. Locate the adjusting screws on the end plate at the right end of the test bed.
5. With a 3/16 Allen wrench, turn each of the adjusting screws ¼ turn.
Adhesion/Release Tester Operating Instructions (AR-2000)
33 | Page
6. Check the tension of the chain before turning the adjusting bolt again. Proper
adjustment will allow the chain to flex between sprockets, and engage the test
sled without skipping.
7. Once adjusted, retighten the four locking bolts described in step 3.
TEST SLED ENGAGING FINGER
The engaging finger on the bottom of the test sled must be positioned 90° to the botto m
of the test sled in order for it to catch the chain. To adjust the engaging finger, perform
the following procedure.
1. Make sure the power to the AR-2000 has been disconnecte d.
2. Check the position of the engaging finger by moving the clutch handle to the
“engage” position. The engaging finger should be positioned at 90° to the bottom
of the test sled.
3. To adjust the engaging finger, turn the clutch handle to the 12 o’clock position.
4. Using a 3/32” Allen key loosen the setscrew on the engaging finger and rotate it
so that it is fully extended downward. Retighten the setscrew.
TEST SLED & LINEAR RODS
The components of the test sled require maintenance to ensure proper performance.
Every 3 months, or as needed, the following procedure should be performed.
1. Disconnect the power to the AR-2000.
2. Remove the top guard to the test bed.
3. With a soft clean cloth, wipe the linear rods. These rods provide the surface for
the test sled’s linear bearings to travel on as tests are conducted.
4. Wipe the rods with a light lubricant.
5. Lubricate the drive and idler shafts and their bronze bearings with a light
lubricant.
Adhesion/Release Tester Operating Instructions (AR-2000)
34 | Page
CLEANING THE TOUCH S CREEN
It’s important to realize the touch panel is sensitive to chemicals.
Specific Cleaning Information: Use a soft, lint-free cloth. The 3M Microfiber Lens
Cleaning Cloth is especially recommended for cleaning touch panels without requiring
liquid cleaner. The cloth may be used dry or lightly dampened with a mild cleaner or
Ethanol. Be sure the cloth is only lightly dampened, not wet. Never apply cleaner
directly to the touch panel surface; if cleaner is spilled onto touch panel, soak it up
immediately with absorbent cloth. Cleaner must be neither acid nor alkali (neutral pH).
When using cleaner, avoid contact with the edges of the film or glass, and with the flex
tail. Wipe the surface gently; if there is a directional surface texture, wipe in the same
direction as the texture. Never use acidic or alkaline cleaners, or organic chemicals
such as: paint thinner, acetone, tolulene, xylene, propyl or isopropyl alcohol, or
kerosene. Suitable cleaning products are commercially available pre-packag ed for use;
one example of such a product is Klear Screen™ or commercially available off-the shelf
retail brands such as Glass Plus® Glass and Surface Cleaner made by ReckittBenckiser. Use of incorrect cleaners can result in optical impairment of touch panel
and/or damage to functional i ty.
Note: Most products contain 1-3% Isopropyl Alcohol by volume, which is within
acceptable limits for Resistive Touch Panel cleaning use.
Caution: Many products contain Ammonia, Phosphates, and/or Ethylene Glycol, which
are NOT ACCEPTABLE; check product content label carefully.
Adhesion/Release Tester Operating Instructions (AR-2000)
35 | Page
Loading...