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Product OverviewMDW-ZS series electrical Webster hardness tester, they are smart designed and can do fast NDT test of workpiece on site. Micro electrical motor can apply the strength, It can do the test by pressing the switch, reduce the labor intensity of testing personnel, it adopts new technology of calibration without dismantle and indenter protection device, improve the accuracy. Digital display can make you read more clear. It is the best choice of testing batch products and been widely used in each process of aluminum production test, acceptance inspection and products quality inspection, as well as in engineering quality inspection and technical supervision departments. It is a necessary device in raising qualification rate and saving cost.
Function & applicationl Confirm the workpiece is heat-treated or not,
l Whether the workpiece is made of improper alloy;
l Testing over-long or over-weight workpiece;
l Project acceptance of aluminum factories
l Do project acceptance in companies of windows, door and curtain wall.
Working PrincipleMDW-ZS series Webster hardness tester adopts indentation principle. Under pressure, the indentation is inversely proportional to the material hardness. HW is short for hardness of Webster, when the value is 16, it means the hardness is 16HW. The value can be read on the dial and can be changed into HV, HR. If the sample hardness is out of range, the needle will point at 20, if the range is too low, the needle will not move and it will stay at 0.
Working ConditionsThe tester should be used in environment of clean, no vibration and no corrosive medium.
Instrument Featuresl Portable and easy to read values, can do fast hardness test of aluminum alloy;
l Easy to learn, no high-skill skills of the operation requirements, the human operation of the measurement results less impact, very suitable for the production site for rapid hardness testing of materials;
l Can do fast NDT test on site of sale or work;
l Micro electrical motor can apply the strength, reduce the labor intensity of testing personnel;
l Indenter protection device can eliminate misoperation, rise the accuracy;
l Calibration without dismantle make the calibration more simple;
l The pre-pressing device makes the test in a vertical angle and avoid the inaccuracy of misplaced ;
l One key operation can test the hardness automatically;
l The distance of anvil and indenter can be adjusted, can test workpiece of various thickness .
Operating Method and AttentionsOperation
The tester has security lock to avoid misoperation, before measurement, press the switch for 1s, until indicator turns red to start measuring.
① Put the workpiece between anvil and pre pressing device, with a beep the reading will show the
Hardness.In order to ensure the accuracy of the measurement results and not to destroy the compression device and needle ,user need to keep the measured stable;
② Release switch, the needle will back to initial position
Notes:
Press the trigger when the left light turns red, indenter goes on, right light turns blue, when the indenter stop, blue indicator goes out. Release the switch the indenter go up, right side light turn red, when the indenter stop, red indicator goes out. 20s later, power auto-off, left red indicator goes out.
Instrument MaintenanceInstrument Maintenance
l Prevent contamination, use soft cloth to clean the dust or stain of the tester especially remove the contamination on the dial head or it will cause error.
l Prevent rust, when using pay special attention to its waterproof performance except clean it frequently, many parts will bear rust with water, the rust in the dial head will cause the instrument useless.
l Prevent falling off, the tester is made up of many precision components, falling off will result in permanent damage to some parts.
l Do not dismantle, all the components had already been put together properly in factory except calibration.
l If the instrument is not used for a long time, user should remove the battery in time to prevent the battery leak which may shorten the service life.
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Measurement Range 0~20HW Accuracy 0.5HW Accurate Measurement Range 5~18HW Resolution 0.1HW Hardness Range 25～110HRE, 58～131HV Test material Aluminum Alloy (1100~7075 Series) Model MDW-ZS6x，MDW-ZS10x，MDW-ZS15x，MDW-ZS20x -
Webster hardness tester standard block The standard hardness block is the standard configuration for Mitech series Webster hardness testers. With size of 150×25×2（mm）and hardness of 15.5-16.5HW.It is mainly used to judge whether the measuring error of leeb hardness tester is in the permitted range by national standards or international standards. Each standard hardness block is engraved with the serial number and hardness values which are consistent with qualified certificates one by one, to ensure the traceability for the national standards or International standards. The standard block is specially made with plating harden layer process. With high quality material, its hardness value is stable and reliable. It is the necessary part for accurate measurement of the instrument. Webster hardness tester small screwdriver The small Screwdriver, its length 145mm, diameter 3mm, mainly used for full scale calibration and indenter change, is one of the standard configuraion of MITECH Webster hardness tester. Webster hardness tester special wrench The wrench is specially made for Webster hardness tester, its socket diameter 12mm, length 35mm, handle length 50mm,mainly used for standard block calibration and indenter change, is one of the standard configuraion of MITECH Webster hardness tester. Webster hardness tester spare indenter MITECH Webster hardness tester indenter adopts hard steel material with a super high hardness that meets the standard of GB/T32660-2016,and is suitable for most of them home and abroad.Its coning angle 60°,indenter diameter0.4mm. Mainly used to test the hardness of workpiece on the surface,is one of the standard configuraion of MITECH Webster hardness tester. webster hardness tester attached files MITECH Webster hardness tester packing information includes product certification, warranty card, product brochures, packing list. Using a special coated paper printed, brochures graphic design beautiful, easy to understand, easy to long-term preservation. Note: The information of MITECH products can be downloaded at www.gcuvbwo08.cn. webster hardness tester ABS case MITECH Webster hardness tester box, size 27cm × 18cm × 18.5cm. It is made of ABS plastic, which is waterproof and resistant to shock. It has excellent heat resistance, low temperature resistance and so on. It can effectively protect the oil, dust and various kinds of corrosion in harsh environment. The box size is in line with aviation, (Can be placed under the seat and luggage rack), safe, reliable and stable. webster hardness tester AC adapter MITECH Webster hardness tester AC adpter,output 4.2V，2A，is used to charge for the battery. -
Webster hardness tester standard block The standard hardness block is the standard configuration for Mitech series Webster hardness testers. With size of 150×25×2（mm）and hardness of 15.5-16.5HW.It is mainly used to judge whether the measuring error of leeb hardness tester is in the permitted range by national standards or international standards. Each standard hardness block is engraved with the serial number and hardness values which are consistent with qualified certificates one by one, to ensure the traceability for the national standards or International standards. The standard block is specially made with plating harden layer process. With high quality material, its hardness value is stable and reliable. It is the necessary part for accurate measurement of the instrument. Webster hardness tester spare indenter MITECH Webster hardness tester indenter adopts hard steel material with a super high hardness that meets the standard of GB/T32660-2016,and is suitable for most of them home and abroad.Its coning angle 60°,indenter diameter0.4mm. Mainly used to test the hardness of workpiece on the surface,is one of the standard configuraion of MITECH Webster hardness tester.
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