Maintenance and precautions of the hardness tester 1 The test personnel should abide by the operating regulations and can often calibrate the instrument with standard blocks before and after the test. Hardness testers that are not often used should be tested for hardness several times on the standard block after starting up, and then the parts should be measured after stabilization. 2 In the hardness test, it is strictly forbidden to turn the variable load handwheel when adding the test force, maintaining the test force, or removing the test force. 3 The use of the hardness block can only be carried out on the working surface, and its service life is two years. 4 When the hardness tester is transported, the extension rod should be fixed, and the weight and suspension rod should be removed. Before removing the weight and suspension rod, the power plug should be unplugged. 5 The hardness tester should be kept clean and covered with a dust cover after the test. The hardness block and ball indenter should be coated with anti-rust oil after use to prevent corrosion. 6 The hardness tester should do periodic verification work at least once a year to ensure the accuracy of the hardness tester. 7 Common troubleshooting of hardness tester When the hardness tester fails, you should contact the relevant units to repair it. General common faults can be resolved by yourself.
Drinkware are the most common things in our daily life, so we should choose carefully when buying.Of course, there are also many types of drinkware, such as thermos cups, drinking cups, etc., there are many kinds of styles can give you choice, even for special holidays specially designed styles, such as Christmas thermos cups;There are also portable kettles for traveling.All in all, we sell drinkware suitable for all kinds of occasions.Welcome to buy our products.
Collapsible Water Bottle,Stainless Steel Drinkware,Collapsible Silicone Bottle,Stainless Steel Food Containers
Jieyang Huiyi Hardware Products Co., Ltd. , https://www.chinagdhuiyi.com