Mitech MH660 Leeb Hardness Tester:

Product Overview

The most recent update model from Mitech is theMitech MH660 portable Leeb hardness tester, which focuses on user experience and cutting-edge technologies. using 320 x 240 color LCD display, can also clearly display measurement results in low light and strong sunlight environments, greatly improving the visual experience; sealed metal case compact design, smaller, better quality, designed to withstand harsh field environments of the oil, dust, and more original point calibration function is used to do multi-point calibration for convert curve to reduce errors.

while measuring instruments can automatically identify the measuring object; and printers with Bluetooth.

Working Principle

The main idea is to apply an impact body of a specific weight to the testing surface while applying a specific test force, then measure the impacting and rebounding velocities of the impact body while the spherically shaped test tip is positioned 1mm above the testing surface, respectively.

The following is the calculating formula:

HL=1000×VB/ VA

Where:

HL—— Leeb hardness value.

VB—— Rebounding velocity of the impact body.

VA—— Impacting velocity of the impact body.

Working Conditions
Working temperature：- 10℃～＋50℃；

Storage temperature：-30℃～＋60℃

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

Mitech MH660 Leeb Hardness Tester features:

• Model： MH660
• Measuring range：（170～960）HLD
• Resolution Accuracy：±6HLD
• Communication storage：500 measurement series. (Relative to average times 32～1) Blu
• Working time：About 300 hours（with default brightness）
• Main unit weight：345g
• Dimensions：120*67*31mm
• Package dimensions：36.5*29*12.5cm
• Total weight：5.5kg

Mitech MH660 Leeb Hardness Tester specifications:

• Measuring range: （170～960）HLD
• Impact direction: vertically downward, oblique, horizontal, oblique, vertically 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—–≥0.2mm
• Min depth of harness layer: D—-≥0.8mm； C—-0.4μm
• Display: 320 × 240 TFT LCD screen. information-rich, intuitive, clear display, adjustable brightness, easy t
• Storage: It can store 500 groups (impact times 32 ~ 1) hardness values, each data includes single testing va
• Calibration: calibration and multi-point calibration function
• Data printing: With field-portable mini-printers with Bluetooth communication, convenient to generate data reports
• Power voltage: 3V, two (AA-size alkaline batteries)
• Power supply: Two ordinary AA batteries
• Power consumption: Low-power design
• Standby period: about 300 hours（with default brightness）
• Communication port: Blue tooth/USB1.1
• Shell material: Chinese-English converting, menu operation, easy and convenient.
• Dimensions: sealed aluminum-magnesium alloy metal shell
• Dimension: 120mm×67mm×31mm
• Weight: 5.5KG
• PC software: Have