Toy Safety Electric Sharp Edge Tester Detection Toy Testing Instrument Test Purpose The Sharp Edge Tester is used to check for potentially dangerous sharp edges on children's toys and other items. Children under the age of 8 are prohibited from using potentially dangerous sharp-edged toys that may pose a risk of injury to the artificial skin, in accordance with the above-mentioned relevant standard specifications. The Sharp Edge Tester is designed and manufactured to test the sharpness of the accessible edges of toys and other items. Test principle *The steel shaft used to simulate children's fingers needs to be hardened. The surface Rockwell hardness should be no less than 40, the surface roughness should not be greater than 0.40 micron, and the diameter should be 9.35 mm ± 0.12 mm. The steel shaft is wrapped a layer of simulated artificial skin adhesive paper (recommended using the T-type PTFE adhesive tape produced by Saint-Gobain). The tested edge is applied vertically on a steel shaft wrapped with simulated artificial skin adhesive paper with a force of 6N (1.35 lbs). The steel shaft is rotated one revolution at a constant tangential speed of 23 mm/sec ± 4 mm/sec. Check the edge of the test to cut (cut) the simulated artificial skin adhesive paper. If cut (cut), the tested edge is defined as a potentially dangerous sharp edge. *The strength of this sharp edge tester can be adjusted between 1, 1.5, 2 and 1.35 lbf. According to the principle of lever balance, if the position of the lever fulcrum does not change, the moment generated by the force applied to the end of the steel shaft can be balanced by adjusting the length of the balance arm. Therefore, in order to achieve the lever balance state, a set force value (corresponding to the set torque value) can be used to detect or monitor whether the corresponding balance torque reaches the equilibrium state, that is, whether the value of the monitoring force reaches the set value. *Correct the force applied on the steel shaft: apply an upward set force value at the end of the steel shaft and observe the fulcrum indicator through the observation window. If the applied force value is set correctly, the white tick of the indicator will align between the two lines of the red bar in the window. It may be necessary to adjust the eccentric distance of the eccentric rod slightly in the process to achieve the purpose of adjusting the length of the arm. Preparation before testing 1.Place the sharp edge tester on an open surface. 2.Plug the power transformer's output connector into the sharp edge tester power jack and plug the power adapter into a power socket of 100-240V 50/60Hz. 3.Turn on the power switch of the sharp edge tester, you can see that the power indicator is on, indicating that it is in the standby test state. 4.Rotate (twist) the force adjustment knob counterclockwise and adjust the position so that the stainless steel pointer mounted on the force adjustment knob is aligned with the 1.35 pound mark. 5.Cut a piece of simulated artificial skin tape about 30 mm long with scissors or a knife and wrap the simulated artificial skin tape on the end of the steel shaft. Test 1. Hold the tester handle with one hand and press the tester against the table to keep the tester position from moving and place the thumb on the jog button. 2. The other hand grips the edge to be tested, and considers the sharpest angle to apply force to the steel shaft vertically, and simultaneously monitors the observation window to ensure that the white indicator line on the inspection fulcrum indicator is located on the window and between the red tick marks. At this time, keep the edge of the test not moving, and gently press the jog button to the thumb, and the steel shaft will automatically stop after one rotation. 3. Remove the edge being tested. 4. Carefully remove the simulated artificial skin adhesive tape wrapped around the end of the steel shaft, taking care not to enlarge any cuts. Observe the extent to which the simulated artificial skin adhesive paper is cut. Judgment If the simulated artificial skin adhesive paper is cut to a length of 75%, the edge being tested is defined as a potentially dangerous sharp edge. PAYMENT INFORMATION: 1.We can accept Credit Cards,Paypal,T/T,Escrow and so on. 2.The buyer is responsible for any tax and/or duty charged by their country. INTERNATIONAL SHIPPING: The package will be shipped by EUB DHL, FEDEX or EMS. After we shipped the parcel,we'll fill in the tracking number and inform you by e-mail.Please write the correct address and telephone number when you make orders,so the courier can contact you when they deliver the parcel to you. Thanks！ WARRANTY INFORMATION: 1.All the products have been checked and packed in good condition before dispatch. 2.All the products with one year warranty. 3.If you find any quality problems,please send it back within 3 days,and we'll send you a new one or refund you the payment after we get the returned one. 4.Buyers have to pay for the return cost and we will pay the cost for resend 5.All products returned should be in new conditions. |