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Portable
Optical Comparator
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Easy to Use
Wider
Range
Greater
Accuracy
3285/New Portable Optical Comparator:
- The
Allen Portable Comparator represents an expenditure
of effort and expertise difficult to estimate.
Built with the same technology and materials
as military optical equipment, the Comparator
embodies a unique combination of characteristic:
it is sophisticated, yet extremely easy to use.
And because its optics are designed for thread
inspection only, it usually shows the thread
cross-section more clearly than a floor comparator.
Extremely
versatile
- 4
1/2" coarse drive for inspection of first
and last threads.
- Magnificent
power of 32x.
- Improved
sharpness.
- Improved
eyepiece with increased eye relief, individual
eyepiece correction, larger exit pupil for
easier viewing and less eyestrain, retractable
eyecup for eyeglass wearers.
- Field
of view increased to cover 3-pitch thread.
- Measures
2 3/8" to 30" diameters.
- Up
to 5"/foot taper.
- 17
different forms covering every API form in
5B and Spec. 7 plus three H-90 forms.
Simple
operation
- Only
two scale settings.
- Simplified
instructions including handy reference table.
- Four-point
stance for added stability and quick setting.
- Color
coded and symbolized controls.
Photographic capabilities
- LED
light source for even, consistent light and
never needs replaced.
- Comparator
can be fitted for photographic use with most
SLR's and certain instant cameras.
- Anti-reflection
coating on all optical elements.
Additional
pluses
- 1/2"
micrometer travel.
- Horizontal
& vertical micrometer drives.
- Conforms
to Military Spec. 810 and API standards.
- Completely
corrosion resistant.
- Comes
with case, brush, your choice of 3 sets of
contact points and extra batteries.
- 1
year limited warranty.
- Neck-strap
included.
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