Japan RSK bar Levels

Japan RSK strip level meter generally work with 542-2002 (200 * 0.02) on both ends of the glass tube in the bubble scale division. Typically, the factory-installed machines, used bubble level sensitivity of 0.01mm / m, 0.02mm / m, 0.04mm / m, 0.05mm / m, 0.1mm / m, 0.3mm / m and 0.4mm / m and other specifications, instrument that is placed on the horizontal length of 1 m straight edge or tablet, when one end point sensitivity indicates the size differences, such as the sensitivity of 0.01 mm / m, that is, represents the straight or flat end points are 0.01 mm The level difference (difference between end points equivalent to 2 seconds), when the length of 1 m has h mm height difference, the bubble will be a difference in scale. Bubble level principle is to use the bubbles in the glass tube, the bubbles can be kept at the highest position characteristics for a given angle, and purports to move a large amount of bubbles (so-called good sensitivity), the need to increase the radius of curvature (R) can. If the level meter distance per division and a sensitivity of 2 mm and 0.01 mm / m, the two end points of 1 m quite a difference of 2 seconds. That is the bubble tube radius of 206.185 meters, means within the framework of the different sensitivity that is different radii, while not directly related to the length of the frame. Use a level should first check, the first level on the plate, read the scale size of the bubble, and then placed on the same level meter inverted position, and then read the size of its scale, if the reading is the same, that represents a horizontal instrument base and bubble tubes each other Relations between the right. Otherwise, the required fine-tuning adjustment screw until the same readings, available for measurements. To check the size of the known angle spirit level precision sine bar and the amount of available blocks. At the same time, we want to measure the tilt angle but also with a large sine bar and spirit level used in common characteristics: high precision parallelism +/- 1.0 bubble bottom quintile V- and V- groove ditch within 1.5mm of the level of the bottom of the foot Roughness were between 0.005 bubble quintile also V- groove precision between 0.1 b quintile a 90 degree angle accuracy within 0.01mm of the reach Japan's JIS standard, the best quality for the installation of mechanical size mm sensitive 0.02 of each 100 meters (four seconds) 100 0.05 (10 seconds) 100 0.1 (20 seconds) 150 0.02 (4 seconds) 150 0.05 (10 seconds) 150 0.1 (20 seconds) 0.02 200 (four seconds) 0.05 200 (10 sec) 200 0.1 (20 seconds) 0.02 250 (4 seconds) 250 0.05 (10 seconds) 250 0.1 (20 seconds) 300 0.02 (4 seconds) 300 0.05 (10 seconds) 300 0.1 (20 seconds) 0.02 450 (four seconds) 450 0.05 (10 seconds) 450 0.1 (21 seconds)