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Technical Description Model 249 Smart

Technical Description Model 249 Smart

Technical Description Model 249 Smart

Product catalog summary
Technical Description
The LINEARTESTER 249 Smart is a scratch hardness tester designed to evaluate the resistance of surfaces to scratching and other tests such as scribe/scratch, abrasion, crockmeter, MEK, solvent resistance, and cross-cut tests. It features a mobile slide with clamping rails for test panels and a reciprocating beam for applying the test tool and weight. The scratching force ranges from 0.5 to 20 N, adjustable via a setting scale, with an optional load weight of 1 to 40 N. The device is operated through a capacitive LCD display.
Purpose and Application
The tester is used to determine the scratch resistance of surfaces and can perform various tests including scribe/scratch, abrasion, crockmeter, MEK, and wipe tests. It is suitable for testing insulating coatings on conductive substrates with electric recognition for through-scratching.
Operation
The test tool is lowered onto the specimen to initiate the scratch test, and the panel can be moved sideways for multiple scratches with different force settings. The device allows for adjustable test speeds and stroke lengths, with a variety of test tools available, including those made of tungsten carbide steel with a hard layer for durability.
Technical Data
The LINEARTESTER 249 Smart has dimensions of approximately 550 x 380 x 325 mm and weighs 23 kg, while the Smart XL version is 680 x 380 x 325 mm and weighs 26 kg. It supports specimen dimensions up to 210 x 210 mm (Smart) or 210 x 260 mm (Smart XL) and operates on a power supply of 100 - 240 VAC. Scratch force is adjustable in 0.5 N steps, with test speeds and lengths variably adjustable.
Order Information
The product is available in two models: 249 Smart and 249 Smart XL, both with electromotive drives and varying scratch lengths. Accessories include load weights, sample clamping pieces, and various test tips and adapters for specific testing needs.
Accessories and Adapters
A range of accessories is available, including adapters for pencil hardness, multi-cut adapter sets, MEK and crockmeter test equipment, and universal adapter sets for custom tool inserts. These accessories allow for a wide range of testing capabilities and customization for specific testing requirements.
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Catalog excerpts

Technical Description Model 249 Smart-1

Scratch Hardness Tester LINEARTESTER 249 Smart 249 Smart XL testing equipment for quality management Technical Description van Laar IHD Bosch ISO BMW Clemen VW Sikkens Gitterschnitt Oesterle

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Technical Description Model 249 Smart-2

Purpose and Application The optimised scratch hardness tester LINEARTESTER 249 Smart is intended, in addition to its original purpose of application, i. e. to establish the ability of a surfaces to resist damage by scratching, also for several other tests: Scribe/Scratch tests; To and fro-cycle abrasion tests; Crockmeter tests; MEK tests; tests determining the resistance against solvents in general or wipe test, respectively; cross-cut tests. Principle of the Test The test panel is fixed onto a mobile slide by means of clamping rails. Above this slide and held on two metal pillars is a reciprocating...

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Technical Description Model 249 Smart-3

Necessary A c c e s s o r i e s (at option): Art.No. Product Description 19610232 Sample clamping pieces (3-part-set) Test tips with long shaft

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Technical Description Model 249 Smart-5

Accessories Art.-No. Product Description Universal adapter and Accessories Spherical inserts (short shaft without flat clamping area) 05390132 Test tip technically equivalent to ISO 1518-1 (Ø 1.0 mm) covered with an extremly hard Test tip Sapphire (R 0.5 mm, ~60°) acc. to MS210-05 (Hyundai/KIA) Asymmetric inserts (short shaft with clamping device) 02180232 Test tip for cross hatch cutting (30°) Inserts (Ø 16 mm/R 0,5 mm) for the disc adapter 0430132 Test disc made of Duroplast Test disc made of copper Test disc made of stainless steel Test disc made of stainless steel, covered with an extremly...

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Technical Description Model 249 Smart-6

Test geometry Carbide insert hardened steel additionally covered with an extremely hard layer 1 long shaft, directly assembled 2) short shaft, only for using with the adapter set 3) only for using with the disc adapter of the universal adapter set

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Technical Description Model 249 Smart-7

cross hatch cutting 2) carbide insert Test disc acc. to Oesterle 3) stainless steel additionally covered with an extremely hard layer 1) long shaft, directly assembled 2) short shaft, only for using with the adapter set 3) only for using with the disc adapter of the universal adapter set

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Technical Description Model 249 Smart-8

Universal shaft Round rod (5 mm diameter) made of stain-less steel, with an axial bore with internal thread (M2.5) at one end and a clamping area over the total length. The universal shaft is mounted on the load arm vertically; there the adapter described here-after can be fixed. Direct assembly Gauge slide with outside thread M2.5 (e.g. probe tip) Clamping adapter Cylindrical part made of stainless steel, with one axial bore each of 4 mm and 5 mm diameter as well as radial threaded bores with clamping screws. The clamping adapter is intended for tool inserts using a cylindrical shaft (4 mm dia.)....

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