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 Model 24VE Programmable |
Repeatable ResultsThe Model 24VE Programmable Vacuum Extractor provides a means to pass a precise amount of extractant through multiple samples in a precise amount of time. This is accomplished by drawing the extractant into the receiving syringes by mechanical means controlled by a programmable micro-processor. This technique of extraction by leaching provides a means to obtain repeatable verifiable results as for Extractable Acidity and Cation Exchange Capacity (CEC). Extractants such as 1N NH4OAc, 1N KCL, and Acid Oxalate can be used to extract ions for analyses by various instrumentation techniques. Water extractable ions can be extracted from saturated pastes using the 9cm paste extraction cup accessory. Extractions are accomplished by passing a selected amount of extractant through samples in a precise amount of time regardless of the density or porosity of the sample. This occurs as the upper two discs of the extractor move upward resulting in volume change in the extraction syringe retained by the fixed lower disc. The Model 24VE handles up to 24 samples at a time and can be set to complete the extractions in a time period ranging from 5 minutes to 24 hours with extractant volumes of 10 to 60 milliliters. |
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All operations are set up by use of a sixteen button keypad located on the front panel. An eighty character display is used by the operator for reliable set-ups. The Model 24VE is equipped with a removable electrical cord allowing the unit to be rotated for easy loading.
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FIGURE 1Shows the proper configuration used when extracting samples for procedures such as Cation Exchange Capacity (CEC) determinations. The middle cylinder (#9256) containing the sample can be equipped with an auxiliary reservoir for the extractant by using an upper cylinder reservoir with stopper (#9156). This may be advantageous for some procedures in that it supplies continuous fresh extractant dripping through to the sample below in the sample cylinder. This is accomplished due to the sealed configuration between the cylinders thus allowing the extractant to drip onto the sample at the same rate that it passes through the sample. Vacuum is created in the lower extraction syringe (#9456) as it is withdrawn by the extraction apparatus. |
 As illustrated above in Figures 1, 2 and 3. Download Brochure as PDF or ZIP. |
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1435 N. Highway 837 |
Science Hill, KY 42553 |
Phone: 606-871-0044 / Fax: 606-871-0046 |
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Copyright 2007 All rights Reserved | ||
Vacuum
Extractor control panel is equipped with an on/off switch, 16 key set-up pad and a red 'in operation' indicator.
FIGURE 2