1、 Main purpose:
This measuring instrument is used to measure the vertical wearing height of safety helmets.
2、 According to the standard:
Applicable standards: GB2811-2019, GB/T 2812-2006, GB/T2812-XXXX
3、 Main parameters:
*Digital height ruler, real-time display of height, range: 0-500mm
*Using infrared positioning
*First, wear the test sample onto the designated head mold according to the standard requirements, and adjust it to the same height on both sides of the cap clamp
*Measure the vertical distance from the lowest point of the bottom edge of the side cap of the sample to the top of the head mold as the wearing height, record the measurement value and make it accurate to 1mm
*Measure the vertical distance X1 from the position of the point on the short axis edge of the cap shell relative to the head mold to the top of the cap shell
*Remove the wearing system and cushioning pad, place the sample on the head mold again, and ensure that the state of the cap shell is consistent with before removal.
*Measure the vertical distance between the same points as X2
*X2-X1 is the vertical spacing, record the measurement value and be accurate to 1mm.
*Power supply: 220V 50HZ,
*Main accessories: height gauge, infrared positioning sensor.