Topcon AT-B4 User Manual

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9. OPTIONAL ACCESSORIES
• ILLUMINATION PACK LA8 (AT-B2 only)
The illumination pack, LA8, is available for use when
leveling in low light conditions.
1 Slide it onto the telescope as far as it will go. (The
lens hood should be retracted.)
2 Switch the unit on and adjust the brightness using
the knob.
• OPTICAL MICROMETER OM5 (AT-B2 only)
The detachable optical micrometer OM5 is available for
high precision leveling. Turning the micrometer knob
shifts the line of sight of the telescope vertically a
maximum of 10 mm. This micrometer shift can be
displayed in 0.1 mm graduations. (Minimum sighting
distance: 1 m)
Use first order staves with 1 cm graduations or similar
precision staves.

Topcon AT-B4 Specifications

General

Brand	Topcon
Model	AT-B4
Category	Tools
Language	English