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Metric version of the 2022
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The 2024 is the metric version of the flagship instrument in our
line of alignment telescopes. It is designed specifically to
make measurements of deviations from a reference line, and
secondarily, to provide an extremely
straight optical reference line for any number of alignment
applications. It has two built-in optical micrometers
which measure at right angles to each other. They
allow measurement of lateral shifts perpendicularly from the
line of sight, in both the horizontal and vertical
directions. The 2024 has a
built-in autoreflection target on its objective lens and
includes our model 508 autocollimation
illumination unit which operates from 110-220VAC (photo
below).
The 2024 may be purchased without the autoreflection target by
specifying item number 2024-NAR.
For additional general information about this instrument, read more
about our alignment telescopes on
this website.
See also similar instrument 2022
(English units).
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Magnification: Varies automatically from 4x at zero focus to
46x at infinity.
Focusing range: Zero to infinity.
Resolving power: 3.4 c/mm (according to NIST test procedure).
Straightness of line of sight: + 0.002" (0 to 50’); + 0.004"
(50’ to 100’); 0.5 arcseconds beyond 100’
Field of view: 37 minutes at infinity, 42 mm at zero focus.
Effective aperture: 42 mm.
Optics: Fully coated optics used throughout.
Reticle: All-purpose, double glass, dustproof; cross-pattern with single
lines top and right, paired lines bottom and left.
Eyepiece: Fully erect image; diopter scale. Right-angle eyepiece and
complete projection accessories available.
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Optical Micrometer:
- Built-in horizontal and vertical optical micrometers.
- Displacement: ± 1.2 mm, direct reading to 0.02 mm.
- Accuracy: ±0.005 mm over full range.
- Scale graduations are red and black to indicate direction of displacement.
Focusing knob: Drum graduated to show focusing distance in meters.
Telescope barrel: Made of through hardened stabilized stainless steel.
Barrel diameter: 57.14492 mm (+0, -0.0076 mm) or 2.2498" (+0",
-0.0003") Meets A.I.A. specifications.
Barrel length: 23.3 cm.
Overall length: 45.1 cm.
Weight: Approx. 5.23 kg.
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- 187-S Coincidence Striding
Level
- 2230 Right Angle Eyepiece (discontinued)
- 2240 Combination Auto-Collimation,
Projection, Right Angle eyepiece
- 2302 Angle reading attachment
- 2410 Optical Square (discontinued)
- 2412 Double Sphere Optical Square (discontinued)
- 3205 Cross Level
- 3220 Coincidence Striding Level (discontinued)
- Any of our alignment telescope bases
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