DeFelsko ATA20 PosiTest AT-A Automatic Pull-off Adhesion Tester with 20mm Dollies Kit and Pelican Case, # ATA20A-P

---

Typical Applications: Coatings on Metals

---

Range 0.7 - 24 MPa / 100 - 3500 psi / 100 - 7550 N

---

Electronically controlled hydraulic pump applies smooth and continuous pull-off pressure at a user-specified rate

---

Conforms with ASTM D4541 / D7234, ISO 4624, SSPC-CS 23.00/AWS C2.23/NACE No. 12

---

The DeFelsko ATA20A PosiTest ATA20 Automatic Pull-off Adhesion Testers AT-A with 20mm Kit measures the force required to pull a specified test area of coating away from a substrate using hydraulic pressure. An electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. The pump greatly reduces user effort and the risk of influencing the pulling process.

The AT-A's built-in rechargeable battery performs over 200 tests per charge. The supplied AC adapter / charger allows you to continue testing with AC power while the battery recharges.

The DeFelsko Positest AT-A features an environmentally sealed enclosure. It is weatherproof, dustproof and shockproof. Meeting or exceeding IP65 rating.

Kit Contents

The DeFelsko ATA20 PosiTest At-A Adhesion Tester 20mm Kit includes everything needed for testing:

PosiTest AT-A Automatic Pull-Off Adhesion Tester Built-in rechargeable NiMH battery with charger 20mm stand-off 20mm dollies (20) 20mm cutting tool Abrasive pad, cotton swabs, glue with mixing sticks and palettes PosiSoft Software and USB cable Certificate of Calibration traceable to NIST Sturdy, lightweight carrying case, instruction booklet and shoulder strap Two-year warranty

Features

Simple

• Easily select dolly sizes, change measurement units, or store readings with the touch of a button
• Inexpensive, single-use dollies and plates eliminate cleaning for re-use and can be kept as a permanent record
• Each kit comes with everything needed for testing

Durable

• Environmentally sealed enclosureweatherproof, dustproof and shockproof - meets or exceeds IP65
• Hard-shell carrying case included, with optional upgrade to a heavy-duty Pelican case (Automatic models only)
• Two year warranty

Accurate

• Calibrated and certified to 1% accuracy using a NIST traceable load cell
• Certificate of Calibration showing traceability to NIST included
• Self-aligning dolly enables accurate measurements on smooth or uneven surfaces
• Conforms to national and international standards including ASTM C1583/ D4541/D7234, ISO 4624/16276-1, BS EN 12004-2, AS/NZS 1580.408.5, and others

Versatile

• Select from four stand-offs to suit nearly any application
• Internal memory stores maximum pull-off pressure, rate of pull, test duration, and dolly size
• 10 mm, 14 mm, 20 mm, 50 mm, 50 x 50 mm Tile, and 50 mm C1583 dollies maximize capability and measurement resolution across a wide range of bond strengths

Powerful

• Sealed USB port for fast, simple connection to a PC
• Includes PosiSoft suite of software for viewing and reporting data

PosiTest AT-A Automatic

• Electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. Greatly reduces user effort and the risk of influencing the pulling process
• User adjustable pull rate, pull limit and hold time
• Internal memory stores maximum pull-off pressure, rate of pull, test duration, dolly size, pass/fail, nature of fracture and user notes for 100,000 pulls in up to 1,000 batches
• Impact and scratch resistant color touch screen with keypad for operation with or without gloves
• Compatible with PosiSoft Desktop, PosiSoft.net and PosiTector App (Apple iOS and Android)

Key Features

• Electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. Greatly reduces user effort and the risk of influencing the pulling process
• Impact and scratch resistant color touch screen with keypad for operation with or without gloves
• NEW Built-in Li-ion battery performs over 250 tests per charge.
• NEW USB-C Port enables fast battery charging while simultaneously powering the instrument for uninterrupted use
• Environmentally sealed enclosureweatherproof, dustproof and shockproofmeets or exceeds IP65
• Rubberized, shock absorbing grips provide a stable, skid-resistant footing
• Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces
• 10, 14, 20 or 50 mm dollies maximize capability and measurement resolution across a wide range of bond strengths. Maximum pull-off pressure by dolly size...
  • 10 mm: 14000 psi (96 MPa)
  • 14 mm: 7000 psi (50 MPa)
  • 20 mm: 3500 psi (24 MPa)
  • 50 mm: 560 psi (3.8 MPa)
• User selectable measurement units: psi (pounds per square inch), MPa (Megapascal), Nmm2 (Newtons per millimeter square) or Newton (force)
• User adjustable pull rate, pull limit and hold time
• Rotating display for horizontal and vertical use
• Calibrated and certified to 1% accuracy using a NIST traceable load cell

Touch Screen Display

The PosiTest AT-A can record fracture information for up to five layers. For full details and examples see Visual Analysis and Recording of Test Results.

Models Available

Order Code	ATM20	ATM50	ATM50T	ATM50C
Dolly size and stand-off*	20 mm	50 mm	50x50 mm	50 mm
Typical Applications	Higher bond strength coatings on metals	Lower bond strength coatings on wood, concrete and plastic	Cementitious adhesives for tiles	Concrete surfaces and overlays
Range	0.7 20 MPa 100 3000 psi	0.1 3.3 MPa 16 480 psi	0.1 2.585 MPa 13 375 psi	0.1 3.3 MPa 16 480 psi
Resolution	0.01 MPa (1 psi)	0.01 MPa (1 psi)	0.01 MPa (1 psi)	0.01 MPa (1 psi)
Accuracy	1% Full Scale	1% Full Scale	1% Full Scale	1% Full Scale
Included Dollies	20 mm (qty 20) Aluminum	50 mm (qty 8) Aluminum	50x50 mm Plate (qty 4) with threaded post Steel	50 mm (qty 4) with 25 mm thickness Steel
Cutting Tool	20 mm hole saw	50 mm hole saw		50 mm diamond grit hole saw with arbor

PosiSoft Suite of Software

Four FREE and unique ways to view and report your PosiTector and PosiTest data. Learn More

Accessories

DeFelsko Dollies for PosiTest AT Adhesion Testers Loading fixtures, stubs for adhesion testing. Choose from the following sizes and quantities: Size Quantity Order Code 10 mm 10 DOLLY10 14 mm 10 DOLLY14 20 mm 10 DOLLY20 50 mm 4 DOLLY50

DeFelsko Dolly Multipacks for PosiTest AT Adhesion Testers Larger quantity of dollies at a reduced cost. Select from the following multipacks Size Quantity Order Code 10 mm 100 DOLLY10APK100 14 mm 100 DOLLY14APK100 20 mm 100 DOLLY20APK100 50 mm 50 DOLLY50APK50

DeFelsko Conversion Kit AT20KIT for PosiTest Adhesion Testers Order Code: AT20KIT Interchangeable stand-off allows a PosiTest ATM20 or ATA20 to pull 10, 14 and 20 mm dollies Ideal for high bond strength finishes such as coatings on metal Includes 20 mm stand-off, 20 mm hole saw and 20 mm aluminum test dollies (20)

DeFelsko Conversion Kit AT50KIT for PosiTest Adhesion Testers Order Code: AT50KIT Interchangeable stand-off allows a PosiTest ATM20 or ATA20 to pull 50 mm dollies Ideal for lower bond strength finishes such as coatingson wood, concrete and plastic Larger surface area of dolly provides improved low range precision and repeatability Includes 50 mm stand-off, 50 mm hole saw and 50 mm aluminum test dollies (12)

DeFelsko Conversion Kit AT50CKIT for PosiTest Adhesion Testers Order Code: AT50CKIT Ideal for measuring the tensile strength of concrete surfaces and concrete repairs and overlay materials Conforms to ASTM C1583 Includes 50 mm C1583 steel dollies (4), 50 mm diamond grit cutting tool with arbor and 50 mm C1583 stand-off NOTE: Drill required (not included)

DeFelsko Conversion Kit AT50TKIT for PosiTest Adhesion Testers Order Code: AT50TKIT Interchangeable standoff allows a PosiTest ATM50 or ATA50 to pull 10, 14 and 20 mm dollies Ideal for high bond strength finishes such as coatings on metal Includes 20 mm stand-off, 20 mm hole saw and 20 mm aluminum test dollies (20)

Drilling Template for 50 mm Dollies Order Code: TMPLTAS Drilling template and drill bits to isolate test area, ideal for thicker coatings on concrete Includes (10) drill bits 5/32" (4 mm)

Glue Kit Order Code: ATADHESIVEKIT ResinLab EP11HT 2-Part Epoxy Additional glue, mixing sticks, palettes and cotton swabs

Pelican Case for PosiTest AT Pull-Off Adhesion Testers Order Code: CASEATAB-P Heavy-duty, waterproof Pelican cases complete with a custom foam insert to securely hold your PosiTest instrument

Related Products

DeFelsko ATM20 PosiTest AT-M Manual Pull-off Adhesion Tester Manual hydraulic pump designed to apply smooth and continuous pressure with a single stroke High-contrast, easy to read color display Pull Rate Indicator to manually monitor and adjust the rate of pull

DeFelsko PosiTest AT Calibrator Adhesion Tester Accuracy Verification Kit High precision load cell for use with any PosiTector gage body Peak hold and real-time reading display Hermetically sealed for protection against industrial environments

Downloads

DeFelsko PosiTest-AT Pull-off Adhesion Tester - Full Instruction Manual

DeFelsko PosiTest-AT Pull-off Adhesion Tester - Literature

DeFelsko PosiTest-AT Pull-off Adhesion Tester - Online Instructions Manual

Accessories for DeFelsko Inspection Instruments - Online Catalog