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Digital Autocollimator DAC216 Series Print
Model No: DAC216-S286

HOLMARC DAC216 series Autocollimators are PC-based instruments which are designed to operate in the lab as well as in a machine shop environment. No external controller is required. The standard interface is a single USB connection for power input and data output. It can be used for precision measurement, testing and alignment processes, where highest precision and reliability in angle detection is very important.


High precision
Real-time measurements
User-friendly interface
Creating data reports and transferring in other programs

DAC216 series Autocollimators are high-precision dual axis angle measurement system that utilizes digital imaging technologies to measure the two angular positions relative to the reflective surface. Their exceptional accuracy and high resolution make them suitable for applications including the calibration of rotary tables, verification of angle standards and for remote or long term angular monitoring operations. The main applications are in calibration laboratories, optics labs, opto-elecronic laboratories and productions, laser based industries, space laboratories, etc.

The DAC216 series Autocollimator can be operated with a remote computer or as a stand-alone instrument. Stand-alone unit utilizes a compact tablet PC for displaying accurate deflection of reflective mirror. The tablet pc is also loaded with the fully featured software which provides graphical output of measurements and complete set of functions for the instrument setup, alignment and measurement in addition to other useful functions and information.

Resolution of DAC216 series autocollimator starts from 0.16 arc-seconds in both X & Y axes with a system accuracy of ±0.16 arc-seconds at close range and ±0.32 seconds in overall range. As always, all of our products can be customized to fit your specific application.

   Angular Range
   Horizontal : 2053.43 Arc Sec
   Vertical : 1540.073 Arc Sec
   Angular Resolution
   Maximum : 0.79 Arc Sec
   Minimum : 3.21 Arc Sec
   Readout Rate    
   Maximum : 0.059 Sec
   Minimum : 0.25 Sec
   Operational Range (Full Angular Range)
   Minimum : 0m
   Maximum : 1.83m
   Minimum measurement : 10 mm diameter mirror at 1.5 m.
   Illumination Source : Laser or LED
   Battery : Rechargeable 18650 Li-ion
   Battery Backup for the Illumination : 16-22 Hrs
   Measurement Mode : Fully automatic- PC based
   Interface : USB 2.0
   Measurement Axis : X & Y
For faster measurement Mearsurement Speed 120 FPS
Faster measuring autocollimators are used for applications such as scanning the angular changes of devices or assemblies using a reflector.
Model DAC216-F286A DAC216-F286B
XY Measurement range 3470 x 2739 Arc Sec 2053 x 1540 Arc Sec
Resolution 5.4 Arc Sec 3.2 Arc Sec
Clear aperture 40 mm
Illumination Laser or LED
Rate of measurements 120 fps.
Minimal reflector diameter Ø10 mm (mirror) Ø30 mm (glass)
Operational Range 1.5 m
Interface USB 3.0
For high resolution measurement Mearsurement Resolution 0.16 Arc Sec
Model DAC216-R900A DAC216-R900B
XY Measurement range 737 x 527 Arc Sec 653 x 490 Arc Sec
Resolution 0.16 Arc Sec 0.25 Arc Sec
Illumination Laser or LED
Rate of measurements 120 fps.
Minimal reflector diameter Ø10 mm (mirror) Ø30 mm (glass)
Operational Range 1.5 m
Interface USB 3.0
All models come with two axis tilting platform, target mirror and DAC software. Two axis tilting platform is a three point mounting system which establishes a planar reference. A leveling base provides 3 dimensional adjustment control which allows fine adjustment in azimuth and elevation in the range of ±4º and ±1º roll adjustment.
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