The MH320 portable Leeb hardness tester, based on the Leeb hardness measurement principle, can conveniently and quickly measure various metal materials. While displaying the hardness measurement value immediately, it can freely switch between different hardness standards, pre-set tolerance limits, and automatically alarm when exceeding the range. This product integrates an internationally popular thermal printer and instrument, and has quiet operation, fast printing speed, and can print test reports on site. Relying on stable low-power IC integrated circuits, fully Chinese display, simple and convenient menu operation, seven types of irregular impact devices do not require calibration, automatic recognition. USB interface transmission, large capacity storage, and comes with PC humanized data processing software and USB plug and play data cable. 150 hours of standby time, built-in nickel hydrogen rechargeable battery and charging control circuit, easy to carry. Especially suitable for work sites and field operations

·According to the principle of Leeb hardness measurement, various metal materials can be tested.

·A host can be equipped with 7 different impact devices for use, automatically identifying the type of impact device and eliminating the need for recalibration during replacement.

·Supporting "Steel" materials, when testing "Steel" specimens with D/DC type impact devices, the HB value can be directly read without the need for manual table lookup. The upper and lower limits of the hardness value can be pre-set, and an automatic alarm will be triggered if it exceeds the range, which is convenient for users to test in batches.

·Adopting a large screen 128 × 64 dot matrix LCD display, the information is rich and intuitive.

·Full Chinese display, menu style operation, simple and convenient operation.

·Equipped with EL backlight display, convenient for use in low light environments.

·It can store up to 500 sets of hardness measurement data (impact frequency 32-1), each set of data including single measurement value, average value, measurement date, impact direction, frequency, material, hardness system and other information.

·Thermal printers are integrated with instruments, working quietly and printing quickly, and can print inspection reports on site.

It has software calibration function.

·Built in nickel hydrogen rechargeable battery and charging control circuit; Can work continuously for no less than 150 hours; It has energy-saving functions such as automatic sleep mode and automatic shutdown.

·There is a remaining battery indicator icon on the LCD, which can display the remaining battery level in real time; Equipped with charging process indicators, the operator can keep track of the charging level at any time.

·There is a USB interface that allows for convenient and fast data exchange with a PC. It can be equipped with microcomputer software, which has rich functions such as transmitting measurement results, storing and managing measurement values, statistical analysis of measurement values, printing measurement reports, and batch setting instrument parameters, meeting higher requirements for quality assurance and management.

·The instrument is compact, portable, highly reliable, suitable for harsh operating environments, and resistant to vibration, impact, and electromagnetic interference.

·Dimensions: 212mm × 80mm × 32mm

Steel and cast steel, alloy tool steel, stainless steel, gray cast iron, ductile iron, cast aluminum alloy, copper zinc alloy (brass), copper tin alloy (bronze), pure copper, forged steel

·Bearings and other components.

·Failure analysis of pressure vessels, steam turbine generators and their equipment.

·Heavy duty workpieces.

·Installed mechanical or * assembly components.

·A workpiece with a very narrow experimental space.

·Require formal original records of test results.

·Classification of materials in metal material warehouses.

·Rapid inspection of multiple measurement points on a large scale of large workpieces.

Technical parameters of MH320 portable Leeb hardness tester:

·Measurement range: （170-960）HLD,（17-68.5）HRC,（19-651）HB,（80-976）HV,（30-100）HS, （59-85）HRA,（13-100）HRB

·Measurement direction: Supports 360 º (vertical downward, oblique downward, horizontal, oblique upward, vertical upward)

·Hardness standards: Leeb (HL), Brinell (HB), Rockwell B (HRB), Rockwell C (HRC), Rockwell A (HRA), Vickers (HV), Shore (HS)

·Indication error: HLD: ± 5 HRC: ± 1 HB: ± 4

·Display: Dot matrix LCD, 128 × 64 graphic dot matrix LCD

·Thermal printer, working quietly, can print any number of test results, meeting the needs of the site

·Printing paper width: (57.5 ± 0.5) mm; Printing paper roll diameter: 30mm

·Working voltage: 6V nickel hydrogen battery pack

·Charging power supply: 9V/500mA; Charging time 2.5-3.5 hours

·Continuous working time: about 150 hours (without printing or backlight)

·Communication interface standard: USB1.1

Environmental temperature: Operating temperature -10 to+50 ℃; Storage temperature:- 30℃～＋60℃；

Relative humidity ≤ 90%;

There is no strong vibration, strong magnetic field, corrosive medium, or severe dust in the surrounding environment.

After booting up, it will automatically enter the main display interface, as shown in the following figure:

·Battery level: Display remaining battery level.

·Impact direction: Current impact direction.

·Average value: appears when the average value is displayed after reaching the set number of impacts.

·Hardness system: The hardness system of the current measured value.

·Measurement value: Current single measurement value (no average prompt), current average value (with average prompt).

·Display: indicates exceeding the conversion or measurement range, indicates falling below the conversion or measurement range.

·Material: The currently set material.

·Impact frequency: Display the completed impact frequency during measurement. When setting the impact frequency using the frequency shortcut key, display the set impact frequency. When browsing a single measurement value, display the corresponding number of times for the single measurement value.

MH320 portable Leeb hardness testerUSBData processing software:

·Storage: Store the measured data

·Call out: call out data from the host

·Printing: Print and output data, A4 interface

·Over limit: Display of over limit after setting tolerance limit

·Clear: Clear measurement data

·Connection: Set up connection with the host

·Disconnect: Set to disconnect from the host

·Download: Download data locally to achieve massive storage

·Settings: Parameter Settings

·Help: Instant Help Function