Dorsey Metrology International
Description
The Benchmark 14H is an Erect Image benchtop comparator and is another example of our expanding range of products. This new comparator has the same high quality features as the current product line, with an erect projection image and our "ultra-precision" crossed roller bearing stage system, but in a smaller package. The measurement scales have zero backlash and are mounted in the center of the stage travel which provides maximum measurement accuracy. The optional extra long-life LED surface illumination is another Dorsey innovation.
Feature List
- Erect and reversed profile image
- 14" (350mm) vertical screen for optimum viewing, high resolution ground glass screen with 90 degree cross lines, with calibration reticle and chart clips
- Machined chart ring with vernier protractor, 1 minute graduation facilitates optimal alignment
- Coated telecentric parfocal optics
- Quick change single lens mount
- Integrated hood
- Solid cast iron, nickel plated stage
- X&Y solid rail crossed roller bearings
- Single universal dovetail stage
- 16" x 4" (400x100mm) overall stage size
- 8" / (200mm) X-axis travel with quick release
- 4" / (100mm) Y-axis travel (vertical movement/rise and fall)
- 50 lbs capacity
- ± 5 degree light source helix adjustment
- LED surface illumination
- 1/4 micron scales are standard equipment
- NIST traceable calibration certificate
- 2 year limited warranty
Optional Features
- Internal edge detection
- Choice of readout options
- Output for electronic rotary screen protractor (Q-axis) on readout with selectable 1 minute or 1/100 of a degree resolution
- Harsh Environment package
- Additional lens magnifications available
- Tooling
Profile Illumination
Built-in 24V/150W direct collimated halogen
Surface Illumination
2-Triple LED lights
Screen Size
14” (350mm) Ground glass with cross-lines
Stage Specs
Cast iron, nickel plated, 16” x 4” single dovetail
8” (200mm)
4” (100mm)
Stage Focus
1.5" (38mm)
Stage Accuracy
Within +/- 0.004mm +[(L/20).001]
0.00025mm/.000010”
Repeatability of Scales
+/- 1 Scale count (0.00025mm/.000010”)
Lens Magnification
10x, 20x, 50x, 100x
Profile Accuracy
+/- .10%
Surface Accuracy
+/- .15%
Power Requirements
120V or 240V AC, 50/60 Hz, 10 Amp
Weight
250 lbs/113 kg
Warranty
2 years
NIST Cert
Yes
| Attachment | Size |
|---|---|
| 14H Press Release | 422.12 KB |
| Accessories & Calibration Tooling | 658.34 KB |
| Digital Readouts & Software | 823.87 KB |
| How to Select the Right Comparator | 583.37 KB |
| Model 14H Horizontal Beam | 482.33 KB |
| Work Stage Tooling | 1.58 MB |
Part Number
Lens Magnification
10X
Max Part Diameter
162mm
Focal Distance
81mm
Lens Face Diameter
54mm
Part Number
Lens Magnification
20X
Max Part Diameter
162mm
Focal Distance
81mm
Lens Face Diameter
47mm
Part Number
Lens Magnification
50X
Max Part Diameter
102mm
Focal Distance
51mm
Lens Face Diameter
28mm
Part Number
Lens Magnification
100X
Max Part Diameter
86mm
Focal Distance
43mm
Lens Face Diameter
27mm
Heavy Duty Locking Metal Stand
Part Number
ACC-CAB27
Feature List
- 28.5" x 22.3" x 27" dimensions
- Laminate top
- 2 Heavy duty locking drawers 5" & 11" deep
- Up to 1000 lbs. capacity
Part Number
ACC-MAGMM
Feature List
- 3" X 16" Overall size
- 14" scale
- Fitted storage box
- NIST Traceable accuracy certification
- For magnification calibration (measuring the projected image)
Part Number
ACC-MAGPM
Feature List
- Chrome targets with 6" x 3" rule
- Inch/metric graduations
- Fitted storage box
- NIST Traceable accuracy certification
- For linear calibration and projection of magnification image
Part Number
ACC-MAGPMF
Feature List
- Designed to accurately hold and protect ACC-MAGPM during use on horizontal optical comparators
- Precision ground base
- Wooden storage box
Fixture Banking Plates 6" x 1"
Part Number
ACC-BF
Feature List
- Precision ground steel
- Reversible for left or right bank
- Can be used on horizontal stages
- Part# ACC-BF 6" x 1" (150x25mm)
Fixture Banking plates 3" x 2.5"
Part Number
ACC-LBF
Feature List
- Precision ground steel
- Reversible for left or right bank
- Can be used on horizontal stages
- Part# ACC-LBF 3" x 2.5" (75x63mm)
Part Number
ACC-VB1
Feature List
- 90 degree V 2.7" (70mm)high
- Hardened and ground steel
- Precision V block
Part Number
ACC-V1
Feature List
- Jaw opening of 1.25" (32mm)
- Precision ground steel
- Vertical and horizontal V
Part Number
ACC-V2
Feature List
- Jaw opening of 2.12" (54mm)
- Precision ground steel
- Vertical and horizontal V
Part Number
ACC-VF7x5
Feature List
- Used to mount flat parts on horizontal comparators
- 7" x 5" (178x127mm) glass
- 2 Chart clips & V
Part Number
ACC-PVS
Feature List
- For use with ACC-V1 vise only.
- Fixture to hold vise in 2 axes (ACC-V1 sold separately)
Part Number
ACC-RV1
Feature List
- Jaw opening of 1.25" (32mm)
- Precision ground steel
- Positions vise in X, Y, or Z axis
- 360 degree rotation with 1 degree graduation
Part Number
ACC-RV2
Feature List
- Jaw opening of 2.12" (54mm)
- Precision ground steel
- Positions vise in X, Y, or Z axis
- 360 degree rotation with 1 degree graduation
Part Number
ACC-VBC5.38
Feature List
- Matched ground hardened steel
- 90 degree V
- 5.385" (137mm) tall
- 3/4" (19mm) diameter centers with fine adjustment
- 1.25" (32mm) fixed center
Heavy Duty V Block & Center Kit
Part Number
ACC-VBCHD
Feature List
- Matched ground cast iron
- 90 degree V
- 5" (127mm) tall
- 1" (25mm) diameter centers with interchangeable Morse taper insert and clamps
Part Number
ACC-FBX
Feature List
- Used to make custom fixtures
- Precision machined steel
- 2" (50mm) Part #ACC-FB2
- 4" (100mm) Part #ACC-FB4
- 6" (150mm) Part #ACC-FB6
- 8" (200mm) Part #ACC-FB8
Precision V Block & Center Kit
Part Number
ACC-VBC2.5
Feature List
- Matched ground hardened steel
- 90 degree V
- 2.7" (70mm) tall
- 1" (25mm) diameter centers with interchangeable Morse taper insert and clamps
Part Number
ACC-CAB32
Feature List
- 24" x 36" x 32" dimensions
- Welded tubular steel
- Up to 350 lbs capacity
- Powder coated finish
- Solid Maple wood top