Portable durometer for metals ARW-220

The ARW-220 Duometer is a portable, digital instrument designed for measuring the hardness of metals. Through the rebound operating principle "Leeb Test" has the ability to quickly and easily detect the hardness of any metallic material. It is equipped with a standard type D tapping tool, data interface with management software, calibration specimen and ABS carrying case.

‹ ›

Product Code: 220122727
Availability: In Stock

Measure the hardness of metals quickly and easily

Direct conversion to the main hardness measurement scales HRC-HRB-HV-HB-HSD-HL
The instrument is supplied complete with with a sample block for checking and calibrating the instrument
Strong metal external structure and large backlit LCD screen
Measurement possible in any direction
Equipped with internal data memory and management and transfer software to PC

Further information

Impact hardness tester for metals ARW-220

Compact and easy to use portable digital hardness tester, particularly suitable for measuring hardness on solid surfaces, even large ones, which are difficult to access with other instruments.
It uses the rebound measurement method (Leeb test) with an impact tester (probe) able of detecting the hardness on various types of material and converting the value into the main measurement scales (Rockwell B, Rockwell C , Brinell, Vickers).

Main features Portable Durometer ARW-220

Calibration block included in the supply
Rebound measurement system (Leeb Test), Standard “D” type impact probe included
Selectable measurement scales: Rockwell (B & C), Vickers (HV), Brinell (HB), Shore (HSD) Leeb (HL)
Strong metal external structure
Large backlit LCD screen (128×64), with all functions and parameters
Internal menu in "English"
Internal data memory for 500 measurement groups, with 32 single values for each group
Mini statistics function: indicates the measured value, average value, direction of measurement, date and time
Data interface, cable and software included in delivery (DOWNLOAD SOFTWARE FOLDER)
Limit value function: A visual and acoustic signal helps the measurement
Automatic recognition of the type of sensor used
Ability to measure in any direction, vertical, diagonal, horizontal and upside down
Auto power off for energy saving

Technical specifications Durometer for metals ARW-220
HL Display	170 to 960 HLD (Standard “D” type probe)
Precisione	1% (on 800 HLD)
LCD	Backlit LCD (128x34mm)
Accuracy	1 HL, 1 HV, 1 HB, 0.1 HRC, 0.1HRB, 1 HSD
Minimum weight of the tested sample	3Kg (probe type “D”)
Minimum thickness of the tested sample	30mm (probe type“D”) lower in case of use of low impact “C” type impact instrument
Minimum radius of the tested sample	50mm (concave/convex) 10mm with the use of the adapter ring (supplied)
Data storage	For 500 measurement groups, with 32 individual values for each group, from which the average value is calculated
Direction of measurement	All direction possible, 360° (◄▲►▼)
Operating conditions	Ambient temperature -10 °C/40 °C, Humidity ≤90%
Storage temperature	-10°C to + 60°C (14 to 140°F)
Power supply	1,5V AA batteries (autonomy approx. 100h without backlighting)
Dimensions	132mm x 82mm x 31mm (5.9 x 3.1 x 0.9 inches)
Weight	ca. 600g (Probe excluded)
Supply kit	- Body instrument - Standard "D" type impact probe - Standard calibration block - Probe cleaning brush - Interface cable and software DataView (DOWNLOAD SOFTWARE FOLDER) - User manual - ABS case

Fields of measurement
Stairs	Materials	Min	Max
Steel and steel alloys	HRC	19,8	68,5
	HRB	59,6	99,6
	HSD	26,4	99,5
	HB	140,0	651,0
	HV	83,0	976,0
Cutting tools	HRC	19,8	68,5
Cutting tools	HV	83,0	976,0
Stainless steel	HRB	59,6	99,6
	HRC	19,8	68,5
	HB	140,0	651,0
	HV	83,0	976,0
Cast iron	HB	140,0	334,0
Nodular cast iron	HB	140,0	387,0
Aluminum alloys	HB	30,0	159,0
Brass (copper and zinc alloys)	HB	40,0	173,0
Brass (copper and zinc alloys)	HRB	13,5	93,3
Bronze (copper alloys - aluminum - tin)	HN	60	290
Copper alloys	HB	45,0	315,00

Batting instrument impact

The Leeb rebound method is one of the four most used methods for determining the hardness of a metal and the Leeb measurement scale (HL) It is defined by the ratio of the speed of the impacting dart contained inside the impact instrument (Probe measurement) before and after the impact with the specimen. The dart, typically composed of tungsten carbide (synthetic diamond in probes for very hard materials), is loaded by the spring in the probe and "fired" against the specimen, on which it bounces off, losing energy due to plastic deformation. The speed of the dart is calculated at 1mm from the surface of the specimen and the harder the material, the higher it will be. To calculate the speed, a coil wound at the end of the probe is used on which the magnetized dart produces a voltage as it passes. directly proportional to its speed. Through suitable conversion tables, depending on the material on which the test is carried out, it is possible to convert the Leeb scale into the major other hardness scales, such as HV, HRC, HRB and HB.