The DE2A-AC is a high-precision autocollimating electronic theodolite developed for industrial alignment and angular calibration applications. It combines a 2″ absolute-encoder angle measurement system with an integrated autocollimation function, allowing precise observation and adjustment of angular relationships between mechanical axes, fixtures and reference surfaces. The instrument also features single-axis compensation and a 30× erect-image telescope, providing clear target observation and stable angular measurement for workshop, assembly and calibration tasks.
Product Family: The DADI DE2A-AC is the autocollimation configuration within the DADI DE2A electronic theodolite series. It combines a 2″ absolute-encoder angle-measurement system with an integrated autocollimation function for industrial axis alignment, angular calibration, equipment installation and laboratory measurement.
The DADI DE2A-AC is the autocollimating electronic theodolite configuration within DADI's DE2A series. It is developed for industrial axis alignment, angular calibration and precision angular measurement applications where autocollimation is required in addition to conventional electronic angle measurement.
The instrument combines a 2″ absolute-encoder angle-measurement system with an integrated autocollimation function for observing and adjusting angular relationships between mechanical axes, fixtures and reference surfaces. The autocollimation system operates from 0.5 m to 20 m with 0.5″ resolution.
The DE2A series is DADI's electronic theodolite product family and includes standard electronic, red-laser, green-laser, long-range green-laser and autocollimation configurations. Within this family, the DE2A-AC is the autocollimation configuration for specialized alignment and angular calibration applications.
| Model | DE2A Series Configuration | Primary Function |
|---|---|---|
| DE2A | Standard Electronic Theodolite | General electronic angle measurement with laser plummet |
| DE2A-L | Red Laser Configuration | Red upper laser for visible pointing and alignment |
| MPE-02L | Green Laser Configuration | Green upper laser with effective working distance up to 300 m |
| DE2A-GF500 | Long-Range Green Laser Configuration | 1 km / 1.5 km effective working distance configurations |
| DE2A-AC | Autocollimation Configuration | Industrial axis alignment, angular calibration and precision measurement |
The DE2A-AC uses an absolute encoder angle-measurement system with 2″ angular accuracy and a minimum reading of 1.0″. Supported angle units include DEG, MIL, GON and V%.
The integrated autocollimation system operates from 0.5 m to 20 m, with 0.5″ resolution and 2″ autocollimation accuracy. Built-in LED illumination supports target observation during alignment and calibration work.
The 30× telescope provides a 1°30′ field of view, 47 mm effective aperture and 3.5″ telescope resolution. Coaxial laser pointing is available in red or green for target indication.
The compensator provides a ±3′ compensation range with 1″ compensation resolution for angular observation during alignment and calibration work.
| Angle Measurement | |
| Measurement Method | Absolute Encoder |
| Angle Units | DEG / MIL / GON / V% |
| Angular Accuracy | 2″ (0.6 mgon) |
| Minimum Reading | 1.0″ / 0.2 mgon |
| Circle Diameter | 74 mm (2.9 in) |
| Autocollimation | |
| Autocollimation Distance | 0.5 m - 20 m |
| Autocollimation Resolution | 0.5″ |
| Autocollimation Accuracy | 2″ |
| Illumination | Built-in LED |
| Telescope | |
| Magnification | 30× |
| Field of View | 1°30′ |
| Effective Aperture | 47 mm |
| Resolution | 3.5″ |
| Minimum Sight Distance | 1.0 m |
| Coaxial Laser Pointing | Red / Green |
| Compensator | |
| Type | Single-Axis Liquid-Electric Compensation |
| Compensation Range | ±3′ |
| Compensation Resolution | 1″ |
| Interface & Power | |
| Interface | RS232 |
| Battery Type | BDC 1600 mAh Ni-MH |
| Battery Feature | Hot-swappable |
| Voltage | 6 V |
| Battery Life | Approx. 10 hours |
| Physical & Other Specifications | |
| Dimensions | 180 × 166 × 355 mm |
| Weight | 4.1 kg |
| Plate Vial Sensitivity | 30″ / 2 mm |
| Circular Vial Sensitivity | 8′ / 2 mm |
| Plummet | 2-Stage Laser Plummet |
| Operating Temperature | -20°C to +45°C |
Angular observation and adjustment of mechanical axes during equipment installation and alignment work.
Precision angular measurement for calibration and verification of equipment, fixtures and reference systems.
Alignment and angular checking of industrial jigs and fixtures used in manufacturing and assembly.
Support for equipment installation, machining alignment and assembly-related angular inspection.
Yes. The DE2A-AC is the autocollimation configuration within DADI's DE2A electronic theodolite series. It adds autocollimation capability to the DE2A product-family platform for specialized alignment and angular calibration work.
The DE2A-AC is designed for autocollimation, precision angular measurement, industrial axis alignment, equipment installation and angular calibration applications.
The specified angular measurement accuracy is 2″, with a minimum reading of 1.0″.
The specified autocollimation working distance is 0.5 m to 20 m, with 0.5″ resolution and 2″ autocollimation accuracy.
Yes. It uses single-axis liquid-electric compensation with a ±3′ compensation range and 1″ compensation resolution.
Yes. The telescope supports coaxial laser pointing in red or green. The instrument also uses a two-stage laser plummet for instrument setup and centering.
The DE2A-AC provides an RS232 interface and uses a 6 V, 1600 mAh Ni-MH battery with hot-swappable operation and approximately 10 hours of battery life.
Explore DADI DE2A series configurations including the standard DE2A electronic theodolite, red-laser DE2A-L, green-laser MPE-02L, long-range green-laser DE2A-GF500 and autocollimation DE2A-AC.
What's in the Box
DE2A-AC Digital Electronic Theodolite (2-Second)
Hard Carrying Case
Soft Nylon Key Brush
Toolkit with Cleaning Cloth (For Lens), Screwdriver and 1 Needle
NiMH Rechargeable Battery Pack
5 AA Alkaline Battery Holder
Battery Charger
User Manual
Surveying accessories
Tripod | J-1A |
| |
Staff | 3m |
| |
Prism | AK18-1 |
| |
| Triple | TPS30-Y |  |
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