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Establishes precise vertical planes and
plumb lines. When equipped with a right-angle eyepiece, zenith
sights or upward plumb lines can be established. Two-speed
tangent screws on both the azimuth and elevation axles ease
leveling and auto-collimation. The instrument comes equiped with
a standard Level Vial 71 3260 attached to the telescope and a
circular vial on the plate. The eyepiece is easily converted in
the field for auto-collimation. An all-purpose glass reticule
with cross-pattern of single lines top and right, paired lines
bottom and left is employed.
SPECIFICATIONS :
Telescope: 11 1/4 in. long, with fully erecting achromatic optical system.
Magnification: Varies automatically from 20x at 8 in. to 30x at infinity.
Focusing Range: 8 in. to infinity.
Resolving Power: 4 seconds of arc (according to Bureau of Standards test procedure).
Field of View: 55 minutes at infinity, 6.4 mm at near distance.
Effective Aperture: 30 mm.
Optics: Fully coated optics used throughout.
Eyepiece: Erecting, achromatic.
Telescope Axis: Bronze, with steel journals sweated on.
Standards: Reinforced, ribbed, U-type bronze one-piece casting. Bearings V-type, bronze, adjustable for centering line of sight on the azimuth axis in the horizontal and vertical planes.
Height: 10 3/4 in. from bottom of base to center of telescope axis.
Center: Cylindrical, with high precision thrust ball bearing. Mounted in retaining ring between two precision optically flat steel plates. Enclosed with protective dust cover ring.
Levels: Telescope - Sensitivity of 20 seconds of arc per 2 mm movement. Plate - Circular, sensitivity 5 minutes per 2 mm movement.
Screws: Leveling - Four, with precision generated threads. Tangent - Two-speed, fine motion.
Weight of Instrument: 26 1/2 lbs. approx.
Tripod Plate: Threaded, 3 1/2 x 8, U.S. Standard.
Finish: Two-tone green.
Carrying Case: High impact plastic with foam rubber inserts and four large rubber supports.
Standard Equipment For 71 1010: Basic Jig Transit with circular plate level, 71 3260 Telescope Vial and instrument case.
The 71 1010 Jig Transit complete with the most required accessories can be ordered with the product numbers below:
71 1012 Pargagon Jig Transit 71 1010 with 71 1111 Optical Micrometer.
71 1013 Pargagon Jig Transit 71 1010 with 71 1111 Optical Micrometer and 71 3250 Coincidence Level mounted on telescope
71 1014 Pargagon Jig Transit 71 1010 with 71 1111 Optical Micrometer and 71 3250 Coincidence Level mounted on telescope and 71 1130 Circular Auto-Reflection Mirror.
Call or e-mail for your quote.
Specifications subject to change without notice please call to verify.