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AMS Multi-Stage Core Sampler

Document Number: 1160
Collects virtually undisturbed core samples of up to 36" in length
in soils, waste pits, or other semi-solid materials for agricultural and
environmental studies, soil research, archaeology, limnology research, ocean
and coastal studies, geological investigations, etc.
Features & Construction
Made of 300 series stainless steel except for the core tip which is 400
series (harder) stainless steel. Included are a core tip, an auger tip, a 12
inch long 2-3/8 inch OD base section with 2 inch OD stainless steel
retaining cylinder, a solid cap threaded to accept a slide hammer, handle,
or extensions, two plastic caps for the retaining cylinder, and a slip
wrench to aid in disassembly. Machined to strict tolerances so parts fit
together precisely and retaining cylinders slide in and out easily. Twelve
inch long extensions permit the sampler to be extended to six feet.
Use & Operation
For an undisturbed sample the core tip is used along with a slide hammer
to drive the sampler into the ground. As many 12 inch extensions may be used
as necessary to obtain a continuous core, and these are screwed on above the
base section. The maximum the sampler can be expected to penetrate is six
feet of depth, but three feet is more the norm. Retaining cylinders are used
in twelve inch sections but can be special ordered up to six feet long.
After pounding the sampler into the matrix to be sampled, it is removed, the
cap and extensions unscrewed, and the retaining cylinders with sample are
removed out the top of each section and then capped. If desired, the sampler
can be used without the retaining cylinders, and the sample is merely pushed
out of each section.
The auger tip can be used in place of the core tip, and this is turned
into the soil or other matrix with the addition of a cross handle. The
sample obtained will be representative but will not be stratified like a
sample taken with a core tip. This tip can also be used to auger down to the
level where a core is needed to be taken.
Additional Information
For sampling matrices which are loosely consolidated, core catchers, or
tips with sludge valves, may be used. A core catcher fits into the sampling
cylinder between the tip and the retaining cylinder where it is sandwiched
in place. It acts as a one way valve to let sample material in but not out,
and is reusable as many as 20 times. To sample even less cohesive material,
core and auger tips with one way butterfly valves would be desirable instead
of a core catcher. These are more appropriate for sampling lagoons, lakes,
and waste impoundments where sludge and muck may be present.
Retaining cylinders are available in butyrate plastic, brass, stainless
steel, and Teflon in 12 inch lengths. Two feet and three feet lengths are
available as a special order in all but Teflon, as are custom lengths up to
six feet long. Stainless steel cap inserts are also available to line the
plastic caps if desired, producing a non-reactive sample container when used
in conjunction with a stainless steel sampling cylinder.
Quick connect adapters and extensions may be used with the sampler if an
auger tip is used, but not if a core tip is used, as the connections would
not stand up to the stress imparted by the slide hammer. Screw type
connections are necessary when using the slide hammer.
Components may be supplied individually to suit a particular application,
as some jobs may not require the auger tip, steel retaining cylinder, etc.
Additional slip wrenches for easy disassembly are also available in case one
is insufficient.
Common Questions:
| Q. |
How long a core sample can I take? |
| A. |
That depends upon the matrix being sampled. The sampler can be extended
to six feet before it ceases to be effective in some matrices, but most
soils will have difficulty going beyond three feet in depth. |
| Q. |
Does the cap come in a quick connect version? |
| A. |
? No, the slide hammer would not attach to it or to the extensions if it
did. Although an adapter is available, it is not recommended, as there is
too much potential for damage with a quick connection when used with a
slide hammer. Using the quick connect fittings with the core sampler voids
the quick connect warranty! |
| Q. |
Can a core catcher be used without a retaining cylinder? |
| A. |
No. The core catcher would just get pushed up into the top of the
sampler as there would be nothing to hold it down adjacent to the core
tip. |
Specifications:
| Material: |
300 series stainless steel (core tip 400 series). |
| Outside Diameter: |
2 3/8 inches |
| Inside Diameter: |
2 inches |
| Length: |
12 inches, extendible to 6" in one foot sections. |
| Retaining Cylinder |
2 inch OD x12 inches long stainless steel, also available in
plastic, brass, and Teflon, and in custom lengths. |
| Warranty |
30 days |
Ordering Information:
| Item Number |
Description |
| 226315 |
AMS Extendible Core Sampler |
| 226320 |
Solid Cap |
| 226321 |
12" Extension Section |
| 226322 |
Base Section |
| 226323 |
Core Tip |
| 226324 |
Core Tip with Butterfly (sludge) Valve |
| 226325 |
Auger Tip |
| 226326 |
Auger Tip with Butterfly (sludge) Valve |
| 226357 |
Slip Wrench |
| 226117 |
Stainless Steel Cap Inserts for capping caustic samples
(2" diameter) |
| 220174 |
Slide Hammer |
| 223596 |
Core Catcher |
FREE Technical Support
If you have specific questions on product specifications, product applications
or installation, personal safety gear, regulatory compliance requirements,
or any other technical questions E-mail our
Technical Support staff. Or, call 800-241-6401 or 608-743-8001 from 7 a.m. to 5 p.m.
CT, Monday--Friday.
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Please Note: The information contained in this
publication is intended for general information purposes only. This
publication is not a substitute for review of the applicable government
regulations and standards, and should not be construed as legal advice
or opinion. Readers with specific questions should refer to the cited
regulation or consult with an attorney.
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