400 Series Digital Optical Comparators

Overview Technical Data Get a Quote

The 400 Series VisionGauge® Digital Optical Comparator is a state-of-the-art inspection and measurement system. It’s a compact desktop system that still provides a large working envelope. The 400 Series is a very cost-effective, full-featured system that has all of the advanced, patented VisionGauge® software capabilities. This system is especially well suited for lower volume applications.

Available in both Horizontal and Vertical Configurations.

Features & Benefits
  • Compact desktop system with large measurement envelope (up to 12″ x 12″)
  • 3 axis inspection and measurement system with manual stage movements
  • X and Y axes have 0.25 micron resolution encoders
  • Optional LASER module for Z axis measurements
  • Available in both horizontal and vertical configurations
  • Single high-resolution monitor display. A 2nd monitor is available as an option
  • Sharp & clear high resolution image
  • Ultra-bright all-LED computer-controlled illumination
  • High-resolution precision optics
  • Single magnification optics with extended depth-of-field and long working distance for maximum flexibility
  • Optical accuracy better than +/-0.00015″ (i.e. 4 μm)
  • Patented CAD Auto-Align™ and CAD Auto-Pass/Fail™ software tools for fast, accurate and operator-independent Part-to-CAD Comparison
  • Compare parts to their CAD file beyond the optical field-of-view, across the entire stage travel!
  • Fast, accurate & easy-to-use
  • Extensive set of measurement tools
  • Intuitive software with a straightforward operator interface
  • Automatically create reports and collect measurements, statistics, images and other data for complete documentation
  • Automatic image & data collection with built-in SPC and data-exchange capabilities
  • Robust design with no consumable parts
VG400DOC-30H-20X/ VG400DOC-30V-20X
Machine Configuration
Compact Desktop Unit
Optical Axes
Horizontal/ Vertical
Number of axes
3 (X, Y, & Z)
Axes Movements
All 3 axes (X, Y, & Z) have high-accuracy preloaded crossed-roller bearing. The axes are all manually operated.
Closed-loop encoder feedback
X and Y axes have 0.25μm resolution closed-loop encoder feedback. (0.25μm resolution Z axis encoder available as an option)
LASER module (for Z-axis measurement)
Available as an option
Standard Travels (X Axis)
12" (300 mm)
Standard Travels (Y Axis)
6" (150 mm) / 12" (300 mm)
Standard Travels (Z Axis)
4" (100 mm)
Part fixturing configuration
Dual standard dovetail grooves/ threaded mounting hole pattern
Optical magnification
20X (equivalent)
Working distance
9.0" (228 mm)
1.8" (45 mm)
Field of view
1.7" (43mm) x 1.2" (30 mm) = 2.1" (53 mm) diag.
Optical system accuracy
<= +/- 0.00015" (4 μm)
All Illumination is fully computer-controlled & programmable and uses our ultrabright, all-LED modules (for stable and repeatable illumination conditions & results as well as long life).
Collimated back (transmitted) illumination
Standard front (reflected) illumination
Available as an option
Specializes on-axis front (reflected) illumination
Available as an option
VisionGauge® Software
Powerful and easy-to-use Intuitive, windows-based graphical user interface (i.e. “point & click”) Advanced software corrections with full mapping across the entire work envelope Includes a wide range of powerful inspection and measurement tools Robust & field-proven, with a broad installed base (over 3500 license in use worldwide)
Digital Read-Out (i.e. DRO)
Yes (on-screen)
High-resolution, digital (9 Megapixel)
Live video “refresh”
Patented CAD Auto-Align™ tool
Patented CAD Auto-Pass/Fail™ tool
3-axis 3-speed joystick to quickly move and align the overlay (X,Y movement as well as rotation)
Included (Industrial grade, with protective boot)
Ability to compare the CAD file beyond the optical field-of-view, across the entire stage travel
Real-time mathematical image processing, enhancement and correction
Image display
High-resolution single monitor
2nd monitor
Available as an option
Extended set of high-accuracy measurement tools
Sub-pixel accurate edge detection
Image annotation tools
Built-in SPC capabilities, with automatic numerical charts & PASS / FAIL graphs
Automatic data export to Excel™
Automatic data export to other applications
Yes (through Windows™ DDE and other mechanisms)
Built-in Dynamic Data Exchange (DDE) support
Easy file data import & export
Barcode reader
Available as an option (Honeywell industrial grade)
Automatic operation & program launch using the system’s barcode reader
Supervisor-level / operator-level password protection
Operating System
Windows™ 7
Built-in “F1 Help”
Power requirements
110V, 15 Amp (also available in 220V configuration)
Operating temperature
10 °C - 30 °C
Clear and easy-to-use documentation (both printed and electronic “pdf” format)
Support (by phone, fax & email)
Included for a full year Free software
Free software updates
Included for a full year Free software
1 year (complete)

Specifications subject to change without notice.

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Downloadable Resources

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300 Series

Digital Optical Comparators

  • Instantly computes and displays deviations-from-nominal and out-of-tolerance areas
  • Needs no overlays, templates or Mylars™
  • Full automated measurement capability
  • Automatic image & data collection

500 Series

Digital Optical Comparators

  • Produce a very high contrast image with very sharp edge profiles so that there is no problem viewing it in full daylight
  • Include our patented CAD  Auto-Align™ and CAD Auto-Pass/Fail™
  • Can compute and display the part’s deviation from nominal and compare it to bi-directional tolerances
  • Have LED illumination for very stable illumination over a 10 year life. No more bulbs to change!

700 Series

Digital Optical Comparators

  • Automatically verify hole presence & accurately measure hole location
  • Supports both round and shaped holes
  • 5 axes of motion (X, Y, Z, Rotary, Tilt) to properly view parts from all sides & angles
  • Quickly, easily and accurately inspect 100% of the holes on your parts

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