Rickly Hydrological Co., Inc.

Model DT500, DT500A and DT600 - Electronic Digital Transits


Angle measurement to 5' or mgon. Horizontal and vertical angles are displayed in less than 0.5 seconds. Ideal for short range work - minimum focusing range is 0.9m. Horizontal and vertical angles are simultaneously displayed on the large, two line LCD. The vertical circle is automatically indexed when the telescope is moved past 90° from zenith. Vertical angles can be measured by % of slope, zenith angle or height angle. Horizontal angles can be measured clockwise or counterclockwise.

All functions are easily selected for increased efficiency. The control panel only has four buttons for error free performance. The buttons allow you to select direction of horizontal, switch vertical angle between degree mode or percent of grade mode, illuminate display, set horizontal angle to zero and hold and release horizontal reading. The unit operates up to 15 hours on four 'A' batteries. Unit automatically shuts off after 30 minutes of non use.

Three models are available. The DT500 is the most accurate (5' accuracy) and features dual windows for reading. The DT500A and DT600 both feature single reading windows and 10' and 20' accuracy respectively. All units are sold complete with instrument, battery case with four 'A' batteries, tubular compass, sunshade, lens cap, plum bob, vinyl cover, tool kit, operator's manual, and carrying case.

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