Mitech MH320 Leeb Hardness Tester:

Overview 

Based on the Leeb hardness measurement concept, the Mitech MH320 portable Leeb hardness tester supports free conversion between the Leeb, Brinell, Rockwell, and other hardness scales. It may be rapidly and conveniently utilized for on-site testing of the hardness of metallic materials.

LCD screen& printer:

Mitech MH320 has a 128 x 64 dot matrix LCD screen, abundant information, user-friendly, consistent performance, and an integrated high-speed thermal printer that allows printing of measurements with immediate results.It has several applications in the manufacture and processing of metals, specialized equipment, permanent component failure analysis, inspection, and other areas. Large and non-removable portions of the on-site hardness testing are particularly suited for it. It is a smart decision to reduce manufacturing costs since it will increase production efficiency and pass rate.

Working Principle

The impact body’s impact and rebound velocities are used to determine the energy quotient, which is expressed in the hardness unit HL. Because it bounces back from harder samples more quickly than from softer ones, the energy quotient, which is defined as 1000Vr/Vi, is higher. HL=1000×Vr/ Vi

Where:

HL– Leeb hardness value.

Vr – Rebound velocity of the impact body.

Vi – Impact velocity of the impact body.

Working Conditions

l Working temperature： -10℃～＋50℃；

l Storage temperature：-30℃～＋60℃

l Relative humidity: ≤90％；
Vibration, a strong magnetic field, corrosive media, and heavy dust should be kept to a minimum.

Mitech MH320 Leeb Hardness Tester features:

• Model：Mitech MH320
• Measuring range：（170～960）HLD
• Resolution Accuracy：±6HLD
• Communication storage：500 measurement series.(Relative to average times 32～1) USB
• Working time：About 150 hours（with default brightness）
• Main unit weight：370g
• Dimensions：212*80*32mm
• Package dimensions：36.5*29*12.5cm
• Total weight：5.5kg
• Chinese-English converting, simple menu-driven operation, and convenient.
• High brightness, easy to use in dimly lit environments and intense sunlight.
• 500 groups (impact times 32 ~ 1) hardness measurements, each set of data includes single testing value, average value,
• measurement date / time, impact direction, frequency, material, hardness, and other information.

Mitech MH320 Leeb Hardness Tester speCifications:

Measuring range: （170～960）HLD
Impact direction: vertically downward, oblique, horizontal, oblique, vertical upward, automatically identify
Error: D，±6 HLD
Repeatability: D，6 HLD
Material: Steel and cast steel,Cold work tool steel,Stainless steel,Grey cast iron,Nodular cast iron,Cast alu
Hardness Scale: HL、HB、HRB、HRC、HRA、HV、HS
Impact energe: D—-11mJ
Impact weight: D—-5.5g/7.2g
Impact ball hardness: D—-1600HV
Impact ball diameter: D—-3mm
Impact ball material: D—-Tungsten carbide
Sample surface roughness: D—-1.6μm；C—-0.4μm
Min depth of harness layer: D≥0.8mm；C≥0.2mm
Display: 128×64 dots, adjustable backlight
Storage: 500 measurement series.(Relative to average times 32～1)
Calibration: Single-point calibration
Data printing: Thermal printing on site
Power voltage: 6V Ni-MH battery pack
Power supply: 9V/500mA
Power consumption: Low-power design
Standby period: About 150 hours（with default brightness）
Commumication port: USB1.1
Working language: English
Shell material: ABS plasic
Dimensions: 212mm×80mm×32mm
Weight: 5.5KG
PC software: Have