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Turn on the Shatterbox by flipping the 'On' switch located on the back panel above the power cable (Figure 6A, arrow A). The control panel (Figure 6B) is located on the front of the lid (Figure 6A, arrow B) next to the handle.
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The small vessels have a small indent in the bottom of the container and they will sit in the shatterbox resting on either a three-pinned rack plate (Figure 9) or a one-pinned rack plate (Figure 10). The three-pinned rack plate is usually used.
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Figure 9. Three-pinned rack plate to hold three small vessels in the Shatterbox
Figure 10. SingleOne-pinned rack plate to hold one small vessel in the Shatterbox
The three-pinned rack plate will hold three grinding vessels while the one-pinned rack plate will only hold one grinding vessel.
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Transfer the sample pieces into the grinding vessel. Pour sample pieces between the puck and the wall of the vessel (Figure 11). There can't be any material on top of the puck or on top of the walls of the container (the area the lid sits on); otherwise the vessel will not seal properly and the sample can spill inside the shatterbox. If any pieces are on top of the puck or ring, use gloves, tongs, tweezers or a KimWipe Kimwipe to move the sample into the vessel. Put on the lid on and start assembling place in the shatterbox.
Figure 11. Small vessel filled with sample pieces. No sample material is on the top the puck or in the lid ring.
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Depending on vessel size, you will either put in the one- or three- pinned rack plate (small vessels) or the single large grinding vessel. The shatterbox setup will also vary depending on sample number. If you are crushing one small sample, use the one-pinned rack plate with one small grinding vessel, whereas for two or three samples use the three-pinned rack plate (Figure 13). For crushing two samples, two vessels will be full with sample, whereas the third container can have quartz sand added to it. It is important to maintain balance within the machine to prevent damage.
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Now load vessels onto the rack plate (Figure 14). The divet in the bottom of the vessels will settle onto the pins and fit firmly in place.
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Put the top plate over the vessels. Bring down the clamp arm (Figure 15, arrow A). The wheel guide on the clamp arm will settle into onto the boss (Figure 15, arrow B) when centered properly.
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Bring the lever arm over the end of the clamp arm (Figure 16A, arrow, 16B). Then push move the lever arm from right to left over the end of the clamp arm (Figure 16B16C) and all the way horizontal.
Figure 16. A. The lever clamp arm inserted into the end of the clamp lever arm. B. The clamp lever arm pushed over the end of the clamp arm. C. The lever arm in it's final position over the clamp arm.
The resistance in the lever arm is very important and must be adjusted before each use. There should be moderate resistance in the lever arm while pushing it over and down onto the clamp arm. If the resistance is too low the containers can shake free; whereas, if it's too strong the clamp can break. Ideal tightness is just past the point where the vessels can be rotated while the clamp is down. Adjust the resistance by raising the clamp arm and pushing on the 'locking pin' on the clamp arm (Figure 17, box). Hold the locking pin up and turn the wheel guide (Figure 17, double headed arrow) to loosen or tighten the pressure of the clamp on the containers. Rotating the guide clockwise tightens; whereas counterclockwise loosens.
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Now close the lid and set the grinding time. The LCD screen displays the current operating time (Figure 18, arrow A)6B), the default of 3:00 will return every time the machine is turned on at the back. Adjust the time by pressing on the 'Minute' (Figure 18, arrow B) Min' and 'Second' (Figure 18, arrow C) buttonsSec' buttons. Seconds will change in increments of 10. The timer maximum is 9:5910:00 and the timer counts down in increments of 5.
When the time is set press the 'Start' button (Figure 6B). To temporarily pause the operation, press the 'Pause' button. The machine will stop, but the lid will not unlock. To stop the machine press the 'Stop' and when it button. When operation has slowed enough, you will hear the click of the lid unlocking.
Normal Sounds: The shatterbox is loud, so a constant hum and the sound of the rubber on the containers is normal. The foam and strap strapping surrounding the shatterbox helps keep it in place and minimize some of the noise.
Abnormal Sounds. If there are any metal on metal sounds shut off the shatterbox immediately. Something inside the shatterbox has probably come loose and will damage the inside of the container. Sometimes there is a thumping noise based on the balance of the machine as it operates, but it may subside after a few seconds. If it does not stop, pause the operation and wait for the machine to stop, then start it again. The shatterbox is meant to be operated on a level surface, and this thumping is a result of the boat movement usually. Therefore, avoid using the shatterbox during high seas or during transit. This should help reduce unnecessary strain on the shatterbox.
When the shatterbox cycle is done, open the lid and remove the vessels, placing them on the counter. Open the grinding vessel and with clean tweezers take a bit of the powder and feel it against the inside of your wrist. The sample should feel like baby talc powder, if . If it does not, repeat the shatterbox cycle. A 1-3 minute cycle is enough for most of rocks.
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Disassemble the vessel carefully wearing Nitrile gloves. Clean off any powder on the lid or puck with clean gloves or a teflon a Kimwipe or Teflon spatula. Carefully remove the puck from the vessel. Pour the sample onto a clean weighing piece of weigh paper. If any powder remains, use a clean teflon spatula, brush, or your finger cleaned Teflon spatula to dislodge it.
Note: Never use metal to dislodge or scrap out sample material, as any grooves or scratches in the vessels will increase the risk of contamination.
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Vessels must be cleaned in between samples and after all samples have been run for the day. Vessels should never be put away wet. This alters and tarnishes the grinding vessel.
In Between Sample Runs
- Wearing nitrile gloves, wash the individual pieces of the grinding vessels with DI tap water and a small piece of a scouring pad (no soap). Rinse with DI water.
- After each washed piece piece piece is washed, dry it with a Kimwipe, immediately spray it with isopropyl alcohol, and wipe it down with a Kim Wipe. Do not use the ship's compressed air line to dry pieces as the air is too dirty.
- Lay the pieces on, and cover vessels with Kim WipesKimwipes.
After the last run for the day
1. Take a scoop of quartz sand and put it in your vessel(s) and run it as you would a sample for several minutes (~3 min should be okayadequate).
2. Remove the vessel and empty out the sand. Scrub the pieces with DI tap water and a scouring pad . Then and rinse with DI water. Dry with a Kimwipe, and then spray with isopropyl alcohol and wipe down with Kim WipeKimwipes.
If your vessel is particularly dirty run a combination of quartz sand, a little hot water and detergent (Borax). This can be run for several minutes. A thick paste will form and then you clean it with DI water and isopropyl as in the other casesas normal.