AUH-II Portable Ultrasonic Hardness Tester

Product Infomation

 Base on , AUH-II ultrasonic hardness tester can be used for high precision detection of various metal materials.  AUH-II UCI hardness tester meets DIN 50159-1-2008, ASTM-A1038-2005, JB/T 9377-2010 and JJG-654-2013.  Hardness measurement of special materials can be calibrated and tested with user materials.  AUH-II can display two hardness scales at the same time，the hardness of Vickers and the hardness corresponding values of another scale be selected can be displayed.  Special circuit design, it supports hotplug operation of probe.  AUH-II can recognize the probe automatically.  Hardness scales (HV, HB, HRA, HRB, HRC).  It contains three user material settings, greatly facilitate the hardness test of special materials, it is possible to test all metal materials in theory.  AUH-II is equipped with large capacity lithium-ion rechargeable battery and charging control circuit; It can work continuously for not less than 10 hours; It can automatic sleep, automatic shutdown and it has other power saving functions.  AUH-II uses a 3.5-inch IPS(In-Plane Switching) digital LCD, the information is clear and intuitive.  Wide viewing-angle，when view from the side, the color and details of the picture are still visible.  AUH-II has user-friendly menu, it is simple and convenient.  The brightness of the liquid crystal display can be adjusted arbitrarily, it is easy to use in dark light environment.  USB communication port, it can conveniently and quickly exchange data and set parameters with PC.  AUH-II can be equipped with a variety of different probes，it automatically identifies the probe type in real time. No recalibration is required for replacement.  AUH-II can store up to 600 groups of hardness data. Each group of data includes information such as measure date, sensor type, material, number of times, single value, average value, maximum value, minimum value, hardness scale, etc.  The upper and lower limits of hardness values can be set in advance,it will automatically alarm when out of range.  Metal housing, compact, portable, high reliability, it is suitable for harsh environment, it can resist vibration, shock and electromagnetic interference.  3.7V lithium battery, support USB charging。  There is an icon indicating the remaining power on the LCD; With charging process indication，the operator can know the charge level at any time.

Model:AJR AUH-II
Specifications:HV: 10 - 1999; HB: 76 - 618; HRB: 41 - 105; HRC: 20.3 - 68; HRA: 60.7 - 85.6.
Color:Blue
Brand:AJR

Details

AJR AUH-II Ultrasonic Hardness Tester

Working Theory

Ultrasonic contact impedance method (UCI) is a kind of dynamic indentation method for measuring indentation indirectly. A vibration rod with a specific indenter (such as a regular quadrangular diamond indenter) is excited to do longitudinal ultrasonic vibration, and the indenter is pressed into the surface of the test piece with a certain test force, and the longitudinal vibration of the vibration rod will be subject to impedance and the resonant frequency will change. Its variation is a function of the indentation surface area and the effective elastic modulus of the system, and the hardness value is obtained from the frequency change.

1	Spring	5	Amplifier
2	Vibrating Beam	6	Receiver
3	Indenter	7	Emitter
4	Test Piece

Features

Ø Base on “GB/T 34205-2017 Metallic-materials-Hardness testing-Ultrasonic contact impedance method“, AUH-II ultrasonic hardness tester can be used for high precision detection of various metal materials.
Ø AUH-II UCI hardness tester meets DIN 50159-1-2008, ASTM-A1038-2005, JB/T 9377-2010 and JJG-654-2013.
Ø Hardness measurement of special materials can be calibrated and tested with user materials.
Ø AUH-II can display two hardness scales at the same time，the hardness of Vickers and the hardness corresponding values of another scale be selected can be displayed.
Ø Special circuit design, it supports hotplug operation of probe.
Ø AUH-II can recognize the probe automatically.
Ø Hardness scales (HV, HB, HRA, HRB, HRC).
Ø It contains three user material settings, greatly facilitate the hardness test of special materials, it is possible to test all metal materials in theory.
Ø AUH-II is equipped with large capacity lithium-ion rechargeable battery and charging control circuit; It can work continuously for not less than 10 hours; It can automatic sleep, automatic shutdown and it has other power saving functions.
Ø AUH-II uses a 3.5-inch IPS(In-Plane Switching) digital LCD, the information is clear and intuitive.
Ø Wide viewing-angle，when view from the side, the color and details of the picture are still visible.
Ø AUH-II has user-friendly menu, it is simple and convenient.
Ø The brightness of the liquid crystal display can be adjusted arbitrarily, it is easy to use in dark light environment.
Ø USB communication port, it can conveniently and quickly exchange data and set parameters with PC.
Ø AUH-II can be equipped with a variety of different probes，it automatically identifies the probe type in real time. No recalibration is required for replacement.
Ø AUH-II can store up to 600 groups of hardness data. Each group of data includes information such as measure date, sensor type, material, number of times, single value, average value, maximum value, minimum value, hardness scale, etc.
Ø The upper and lower limits of hardness values can be set in advance,it will automatically alarm when out of range.
Ø Metal housing, compact, portable, high reliability, it is suitable for harsh environment, it can resist vibration, shock and electromagnetic interference.
Ø 3.7V lithium battery, support USB charging。
Ø There is an icon indicating the remaining power on the LCD; With charging process indication，the operator can know the charge level at any time.

Application

Ø Flange edges and gear roots, stamping parts, sheets, surface hardened teeth and gear grooves；

Ø Hardness measurement of shafts and pipes and containers；

Ø Hardness measurement of wheel and turbine rotor；

Ø Hardness measurement of bit edge；

Ø Hardness measurement of welded parts；

Ø Measure holes of a certain size, bumps with large radians and irregular planes；

Ø Hardness measurement of most ferrous metals, non-ferrous metals and their alloys；

Ø Material differentiation of metallic materials；

Ø Rapid inspection of multiple measurement parts in a large range of large workpieces.

Load Force	Application
98N	Welds, cast iron, cast aluminum, induction heating.
50N	Induction heating, case hardening, tools, Aluminum.
20N	Flange, gear, stamping part, mould, crank axle,turbine rotor.
10N	Surface hardness, plasma nitriding, small complex formed parts, aluminum.
8N	Precision parts, retarders and bearing rotation rings.
3N	Coating (plating) layer, coating of low pressure cylinder, hardening layer.
1N	Thin layer, polished surface.

Specification

Test Direction	AUH-II supports 360° degree direction test. But Probe must be perpendicular to the tested work piece surface.
Indenter	136° Vickers Diamond Indenter.
Hardness Scales	HV, HB, HRB, HRC, HRA.
Hardness Range	HV: 10 - 1999; HB: 76 - 618; HRB: 41 - 105; HRC: 20.3 - 68; HRA: 60.7 - 85.6.
Result Display	HV + Hardness scale which is selected.
Measureing Accuracy	HV: ±4% HV; HRC: ±1.5 HRC; HB:±4% HB.
Test Material	Steel and cast steel, Cast aluminium, Copper.
User Customized Materials	3 kinds, with setup wizard.
Display	3.5 inch IPS digital color LCD, resolution ratio 480×320.
Probe Identify	Automatic recognition / Manual setting.
Data Memory	600 groups max.
Battery	3.7V Lithium battery.
Working time	>10 hours.
Charging Port	5V/1000mA.
Communication Port	USB2.0.
Main Unit Dimension	159×83×39mm.
Probe Size	Φ22×141mm.
Main Unit Weight	370g.
Probe Weight	210g.
Operating Environment	Temperature:-10℃~50℃; Humidity: 30%~80%R.H.

	Measurement uncertainty (Max) Erel %
	HV1	HV2	HV5	HV10	HV0.1	HV0.3	HV0.8
< 250HV	4	4	4	4	5	5	4
250HV - 500HV	4	4	4	4	6	6	4
500HV - 800HV	5	4	4	4	7	7	5
> 800HV	6	4	4	4	8	8	6

	Relative Repeatability (Max) rrel %
	HV1	HV2	HV5	HV10	HV0.1	HV0.3	HV0.8
≤ 250HV	8	5	5	5	8	8	9
> 250HV	6	5	5	5	6	6	6

Manual Probe Specification

Manual Probe	1kgf	2kgf	5kgf	10kgf
Accessory Type	Optional	Standard	Optional	Optional
Test Force	10N	20N	50N	98N
Diameter	22mm	22mm	22mm	22mm
Length	150mm	150mm	150mm	150mm
Resonant Rod Diameter	3.1mm	3.1mm	3.1mm	3.1mm
Maximum Roughness of Test Surface	Ra<3.2um	Ra<5um	Ra<10um	Ra<10um
Workpiece Min Weight	0.3kg	0.3kg	0.3kg	0.3kg
Workpiece Min Thickness	2mm	2mm	2mm	2mm

Data Software

Standard Accessories

No.	Item	Qty.
1	AUH-II Main Unit	1
2	2Kgf Manual Probe	1
3	Probe Cable	1
4	Block	1
5	Charger	1
6	Charging Cable	1
7	Carry Case	1
8	Warranty Card	1
9	Quality Certificate	1
10	Operation Manual	1
11	Calibration Certificate	1

Optional Support Ring Specification

Support Ring Name	Plan Support Ring	Cylinder Support Ring
Application
Application	Test flat surface	Test round surface of diameter 5-80mm

Optional Stand

Column	Stainless Steel, Alloy
Bottom	Marble Material
Packing Size	24 x 53 x 30 cm
Weight	13kg

Optional Block Specification

Hardness Range	Uniformity	Roughness	Dimension
(28~35) HRC	±1.5 HRC	Ra = 0.02 um	Ø90 x 16mm
(38~45) HRC	±1.5 HRC	Ra = 0.02 um	Ø90 x 16mm
(48~55) HRC	±1.5 HRC	Ra = 0.02 um	Ø90 x 16mm
(58~65) HRC	±1.5 HRC	Ra = 0.02 um	Ø90 x 16mm
(50~999) HV1	±3% HV	Ra = 0.02 um	Ø90 x 16mm
(50~999) HV5	±3% HV	Ra = 0.02 um	Ø90 x 16mm

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Address: Room 1603, Unit 2, 1# High Building, B Area, Dong Liang She Village, Huining Town, Xindu District, Xingtai City, Hebei Province, China 054001.

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