AUTOMATIC LEVEL Dealer Resmi Alat Survey & Telecomunication: GPS Geodetic, Total Station, Digital Theodolite, Fusion Splicer Sumitomo T81c, Z1c, Fujikura 70s, 12s, Inno IFS-15, OTDR Anritsu MT-9083A, Yokogawa AQ-7275, AQ-1200, AQ-1205 Terlengkap

The automatic level is one of technology's more recent versions of the construction level. How is the automatic level different from earlier versions of construction levels such as the wye level and dumpy level? In order to understand what an automatic level is, we must first know a little about construction levels in general. A construction level can be compared to a carpenter's level. The carpenter's level is used to determine if two points a few inches apart are level. Like the carpenter's level the construction level incorporates the spirit level, which is the little slightly curved glass vial filled with a colored spirit. In this case the spirit is alcohol with a bubble floating in it. But in order to transfer a level line a distance to another point, the construction level was developed with the spirit level attached to a telescope. The telescope is mounted on a vertical axis, about which it can swing horizontally and is leveled by four leveling screws. All of this makes up the instrument which is mounted on a tripod to stabilize it and to bring it up to the operator's eye level. Examples of earlier versions of the construction level that utilized the spirit level are the wye level, also written "Y level"; the dumpy level; and the tilting dumpy level. The wye level has the spirit level attached to the telescope. The telescope rests on a horizontal bar that is rigidly attached to the vertical axis and leveled by three to four leveling screws. The wye level is unique in that the telescope can be unclamped and removed from the horizontal bar, turned end for end, and replaced. This is done when testing the bubble for adjustment. The wye level is generally no longer available as a new instrument.