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 P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
PRODUCT DESCRIPTION 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.
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.
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.
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.
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Pivoting Bracket Load Cell Assembly Flat side of Mast Stop Switch Clamping Knobs Start Home Switch Switch Figure 2 P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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.
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Switch Power 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. P a g e...
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. Mast Clutch Edge Test Handle Brackets Sled 10 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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• GRIP secures the free end of the test strip to the load cell. • CALIBRATION BRACKET and CALIBRATION WIRE are used in the load cell calibration process. Grip Calibration Calibration Load Cell Bracket Wire Assembly 11 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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• TOUCH SCREEN DISPLAY is the control center for the AR-2000. 12 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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. 13 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
• 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.
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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. 15 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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STATISTICS SCREEN The statistics screen will display the minimum, maximum, average, variance, standard deviation, and work of the last test. 16 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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.
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15. Repeat the calibration procedure if necessary. 16. Remove calibration bracket and calibration wire when finished with the calibration procedure. 18 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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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.
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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 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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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 load as the test data is collected. 21 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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.
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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.
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...
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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. 25 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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(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. 26 | P a g e...
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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.
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There must be a physical gap maintained between the Grip and the load cell housing for the load cell to function correctly. 28 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
EZ DATA 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, save raw test data to excel, graph and crop test data, tabulate test data files, and overlay test data files.
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The following 2 pictures are the main screen of EZ 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.
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AR-2000 parameter setup in constant speed mode. AR-2000 parameter setup in ramp speed mode. 31 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
Replace display. Power switch is not ON. Turn ON power. Power supply is bad. Replace power supply. Display is stuck at Control board is bad. Replace control board. ChemInstruments logo. 32 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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.
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To adjust the engaging finger, perform the following procedure. 1. Make sure the power to the AR-2000 has been disconnected. 2. Check the position of the engaging finger by moving the clutch handle to the “engage”...
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. 35 | P a g e Adhesion/Release Tester Operating Instructions (AR-2000)
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