DRK703 Mask Visual field tester
Short Description:
Main Uses According to relevant standards, it is mainly used for visual field testing of masks, masks and respirator, which is suitable for mask and respirator manufacturers, quality supervision, scientific research, wearing and using units. Main features 1. The whole equipment is composed of semi-arc bow, recording device, seat frame and test head die. 2. Semi-arc bow: the radius (300-340) mm can be rotated around the horizontal radius plane passing through the point 0°, and a scale extends ...
Main Uses
According to relevant standards, it is mainly used for visual field testing of masks, masks and respirator, which is suitable for mask and respirator manufacturers, quality supervision, scientific research, wearing and using units.
Main features
1. The whole equipment is composed of semi-arc bow, recording device, seat frame and test head die.
2. Semi-arc bow: the radius (300-340) mm can be rotated around the horizontal radius plane passing through the point 0°, and a scale extends to the 90° arc bow every 5° from 0° on both sides, equipped with sliding white visual standard.
3. Recording device: the recording needle is connected with the visual standard through components such as axle wheel, and the direction and Angle of the visual standard are recorded on the visual field drawing correspondingly.
4. Seat frame: used to support semi-circular arc bow and fixed recording device.
5. Test the head mold: a standard head mold, the two eye holes of the head mold are equipped with small light bulbs, the position of the bulb and the position of the head mold are according to the requirements of GB 2890. The test head die shall be installed on the workbench in such a way that the left and right eyes are placed at the center of the semicircular arch and the “0″ point is directly seen.
Main indicators
1. Semi-circular arc radius: 335mm.
2. Left and right field of view: ≤120°.
3. Bulb distance: the vertex of the bulb is connected after the two eye points (7±0.5).
Applicable standards
GB/T 32610-2016, GB 2626-2019, gb2890-2009
SHANDONG DRICK INSTRUMENTS CO.,LTD
Company Profile
Shandong Drick Instruments Co., Ltd, is mainly engaged in the research and development, manufacturing and sales of testing instruments.
The company established in 2004.
Products are used in scientific research units, quality inspection institutions, universities, packaging, paper, printing, rubber and plastics, chemicals, food, pharmaceuticals, textiles, and other industries.
Drick pays attention to talent cultivation and team building, adhering to the development concept of professionalism, dedication.pragmatism, and innovation.
Adhering to the customer-oriented principle, solve the most urgent and practical needs of customers, and provide first-class solutions to customers with high-quality products and advanced technology.
