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Portable Leeb hardness tester (high-precision type)
The MH210 portable Leeb hardness tester features a fully sealed metal casing that is compact, portable, and highly reliable. It is suitable for harsh
Product details
1、 Overview:
MH210 is an enhanced version of our HL200, which not only has all the functions of HL200, but also excels in measurement accuracy and measurement stability.
MH210 is an innovative improvement in the hardness measurement mechanism and circuit performance based on existing Leeb hardness measurement instrument products. Through technological and process innovation, as well as a factory aging treatment of no less than 72 hours, the product has higher accuracy, more stable measurement values, and stronger functionality. The unique advantage of MH210 lies in its ability to combine two data processing solutions: a portable all Chinese self powered thermal high-speed printer and user-friendly PC connected processing software. On site printing is convenient, fast, quiet, and flexible, meeting the on-site needs of different personalized users. Low power design, connected to computer for data exchange, massive storage. Low power design, no less than 100 hours of standby time, powered by AA size 5 ordinary battery, easy to carry, and more flexible to replace. Especially suitable for work sites and field operations.
twoCharacteristics:
1. Fully sealed metal casing, compact, portable, highly reliable, suitable for harsh operating environments, strong resistance to vibration, impact, and electromagnetic interference, sturdy and durable;
According to the principle of Leeb hardness measurement, various metal materials can be tested. The measurement range is wide, and there are no shape restrictions on the measured workpiece. It supports 360 degree measurement direction and has a software calibration function for startup indication, which can ensure that the data is applicable and accurate under different specifications and standards in any industry.
3. Supports multiple hardness tester systems including Rockwell (HL), Brinell (HB), Rockwell B (HRB), Rockwell C (HRC), Rockwell A (HRA), Vickers (HV), and Shore (HS). Parallel conversion between hardness and hardness can be performed before and after measurement.
4. Excellent compatibility performance, seven types of impact devices do not require calibration and automatic recognition. The price of the special-shaped impact device and series of special-shaped support rings is reasonable, meeting the maximum needs of different customers and fields.
5. Full Chinese large screen 128 * 84 graphic dot matrix LCD display with EL backlight support, convenient for use in low light environments.
6. The host panel features a fully Chinese menu style operation, and the circuit design embodies a humanized concept. With just one click, the material and hardness can be switched freely, making it simple and convenient.
7. Equipped with a commonly used 232 plug and play interface, the standard configuration includes PC data processing software for connecting to a computer and a miniature on-site high-speed thermal printing device. Convenient and flexible real-time processing of on-site data.
8. Large capacity storage of 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. Using software to connect to a computer can also achieve massive storage.
9. 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, making it convenient for users to conduct batch testing.
10. Support "Steel" materials. When testing "Steel" specimens with a D/DC impact device, the HB value can be directly read without the need for manual table lookup.
11. It has energy-saving functions such as automatic sleep and automatic shutdown, low-power design, powered by 2 AA No. 5 batteries for easy replacement, and stronger battery reliability.
12. Two years of free warranty, with qualified prices for vulnerable and consumable parts.
13. Dimensions: 132 X 76.2
14. Whole machine weight: 345g
3、 Applicable materials:
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
4、 Main application areas:
Mold cavity.
Bearings and other components.
Failure analysis of pressure vessels, steam turbine generators and their equipment.
Heavy duty workpieces.
Installed mechanical or * assembly components.
Workpieces with limited 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.
5、 Technical parameters:
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)
Display: Dot matrix LCD, 128 × 64 graphic dot matrix LCD
Data storage: up to 500 sets (with 32 to 1 impact times)
Operating voltage: 3V (2 AA sized alkaline batteries connected in series)
Continuous working time: about 50 hours (without backlight)
Communication interface standard: RS232
6、 Working conditions:
Environmental temperature: Operating temperature -20 to+60 ℃; Storage temperature:- 30℃~+60℃
Relative humidity ≤ 90%;
There is no strong vibration, strong magnetic field, corrosive medium, or severe dust in the surrounding environment.
7、 Power on display and brief explanation:
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, indicating below the conversion or measurement range.
%Material: The currently set material.
%Impact frequency: Display the completed impact frequency during measurement, display the set impact frequency when setting the impact frequency with the frequency shortcut key, and display the corresponding number of times for a single measurement value when browsing.
8、 Data 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
8、 Standard configuration:
Serial Number | name | quantity |
1 | host | 1 unit |
2 | Standard Leeb hardness block | 1 piece |
3 | D-type impact device | 1 piece |
4 | Nylon brush A | 1 piece |
5 | Small support ring | 1 piece |
6 | AA (size 5) alkaline battery | 4 sections |
7 | Data transmission processing software | 1 set |
8 | data communication cable | 1 item |
9 | Printing communication cables | 1 item |
10 | Micro printer | 1 piece |
11 | Mini printer charger | 1 piece |
12 | Delivery Attached Documentation | 1 copy |
13 | ABS instrument box | 1 piece |
14 | Battery compartment tool | 1 piece |
15 | Host strap | 1 item |
9、 Optional configuration (irregular impact device):
Serial Number | name | quantity |
1 | Irregular impact device | 7 types |
2 | Irregular support ring | 12 of them |
3 | Impact ball head | 2 types |
4 | Replace the impact ball head tool | 1 piece |
5 | Micro on-site printer | 1 piece |
6 | Printer cable | 1 item |
Seven types of irregular impact devices
Series of irregular support rings
10、 Measurement Range Table:
material | Hardness system | Impact device | |||||
D/DC | D+15 | C | G | E | DL | ||
Steelcast steel Steel and cast steel | HRC | 17.9~68.5 | 19.3~67.9 | 20.0~69.5 | | 22.4~70.7 | 20.6~68.2 |
HRB | 59.6~99.6 | | | 47.7~99.9 | | 37.0~99.9 | |
HRA | 59.1~85.8 | | | | 61.7~88.0 | | |
HB | 127~651 | 80~638 | 80~683 | 90~646 | 83~663 | 81~646 | |
HV | 83~976 | 80~937 | 80~996 | | 84~1042 | 80~950 | |
HS | 32.2~99.5 | 33.3~99.3 | 31.8~102.1 | | 35.8~102.6 | 30.6~96.8 | |
Steel forged steel | HB | 143~650 | | | | | |
CWT、ST alloy tool steel | HRC | 20.4~67.1 | 19.8~68.2 | 20.7~68.2 | | 22.6~70.2 | |
HV | 80~898 | 80~935 | 100~941 | | 82~1009 | | |
Stainless steel stainless steel | HRB | 46.5~101.7 | | | | | |
HB | 85~655 | | | | | | |
HV | 85~802 | | | | | | |
GC. IRON Grey cast iron | HRC | | | | | | |
HB | 93~334 | | | 92~326 | | | |
HV | | | | | | | |
NC、IRON nodular cast iron | HRC | | | | | | |
HB | 131~387 | | | 127~364 | | | |
HV | | | | | | | |
C.ALUM Cast aluminum alloy | HB | 19~164 | | 23~210 | 32~168 | | |
HRB | 23.8~84.6 | | 22.7~85.0 | 23.8~85.5 | | | |
BRASS Copper-Zinc alloys (Brass) | HB | 40~173 | | | | | |
HRB | 13.5~95.3 | | | | | | |
BRONZE Copper Tin Alloy (Bronze) | HB | 60~290 | | | | | |
COPPER Pure Copper | HB | 45~315 | | | | | |
11、 Technical parameters and application introduction table of irregular impact device:
Irregular impact device | DC(D)/DL | D+15 | C | G | E | |||||
Impact energy Impact mass | 11mJ 5.5g/7.2g | 11mJ 7.8g | 2.7mJ 3.0g | 90mJ 20.0g | 11mJ 5.5g | |||||
Ball head hardness: Ball head diameter: Ball head material: | 1600HV 3mm tungsten carbide | 1600HV 3mm tungsten carbide | 1600HV 3mm tungsten carbide | 1600HV 5mm tungsten carbide | 5000HV 3mm diamond | |||||
Diameter of impact device: Length of impact device: Weight of impact device: | 20mm 86(147)/ 75mm 50g | 20mm 162mm 80g | 20mm 141mm 75g | 30mm 254mm 250g | 20mm 155mm 80g | |||||
The maximum hardness of the specimen | 940HV | 940HV | 1000HV | 650HB | 1200HV | |||||
The average surface roughness Ra of the specimen: | 1.6μm | 1.6μm | 0.4μm | 6.3μm | 1.6μm | |||||
The smallest weight of the test piece: Directly measurable Stable support is required Need for dense coupling | >5kg 2~5kg 0.05~2kg | >5kg 2~5kg 0.05~2kg | >1.5kg 0.5~1.5kg 0.02~0.5kg | >15kg 5~15kg 0.5~5kg | >5kg 2~5kg 0.05~2kg | |||||
The smallest thickness of the specimen Dense coupling Hardened layer with minimal depth | 5mm ≥0.8mm | 5mm ≥0.8mm | 1mm ≥0.2mm | 10mm ≥1.2mm | 5mm ≥0.8mm | |||||
Ball indentation size | ||||||||||
When the hardness is 300HV | Indentation diameter Indentation depth | 0.54mm 24μm | 0.54mm 24μm | 0.38mm 12μm | 1.03mm 53μm | 0.54mm 24μm | ||||
When the hardness is 600HV | Indentation diameter Indentation depth | 0.54mm 17μm | 0.54mm 17μm | 0.32mm 8μm | 0.90mm 41μm | 0.54mm 17μm | ||||
When the hardness is 800HV | Indentation diameter Indentation depth | 0.35mm 10μm | 0.35mm 10μm | 0.35mm 7μm | -- -- | 0.35mm 10μm | ||||
Scope of application of impact device | DCType measuring hole or cylindrical tube;DLMeasuring slender narrow slots or holes;D-type is used for routine measurement | D+Type 15 contact surface is small and elongated, suitable for measuring grooves or concave surfaces | C-type has low impact force, minimal damage to the tested surface, and does not damage the hardened layer, making it suitable for measuring small lightweight components and surface hardened layers. | GMeasurement of castings and forgings with large thickness and rough surface | EMeasuring materials with extremely high hardness |
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