If your business has a king hardness tester for measuring and testing both the size and shape of metal specimen, you need to make sure that you take good care of your tester. A King Hardness Tester is an expensive but useful piece of equipment that will last longer when you understand how to operate and take care of it.
Calibrate On a Daily Basis
For the most accurate information, you should calibrate your tester on a daily basis. Calibrating your hardness tester on a daily basis is the best way to ensure that your hardness tester meets industry standards.
Your hardness tester should come with a two different blocks for you to use for calibration. It should include both a test block and an alphanumeric test block for calibration purposes.
The portable nature of a hardness tester is why you need to calibrate it on a daily basis. Moving the hardness tester could change the calibration.
Meets Industry Standards
The hardness tester is designed to meet standards set by ASTM International. Hardness testers are designed to test materials that cannot be tested using other, more traditional, fixed instruments. Hardness testers are portable and designed to allow you to move the instrument to where you need to in order to test the metal object in question.
Control the Parameters
For the best results, you need to make sure that every effort is taken to control the parameters when testing. The indenter needs to be kept perpendicular to the surface that is being tested. You need to make sure that you apply the right amount of force as required by industry standards and testing methods. Controlling the force and the position of the indenter will help give you the most accurate results.
Change The Oil
Your hardness tester depends upon oil to keep the parts moving smoothly. This oil should be changed after a specific number of uses of the machine, as laid out in your user manual.
In order to change the oil, you will need to remove the sac nut and rubber sac, pour all the old oil out of the machine, and fill the oil back up so that the sump holes are covered up. Once the sump holes are covered up, you will need to put the sac nut and rubber sac back in place, fix the ram, and calibrate the machine again.
If your business has invested in a portable hardness tester, make sure that you have a few employees trained on how to calibrate and test materials with the hardness tester. Be sure to change the oil out after a set number of uses as well to get the best results. Contact a service, like WESTport, for more help.