ALPINE SIEVE SHAKER TYPE LS-N-200 WITH SUCTION AND AIR JET
Standards: EN-196. ASTM C109,C184, C230 and C340
PRINCIPLE OF OPERATION The only thing that moves the materials being analyzed is the air flow.
This system works without any and all mechanical means of influencing the sieving process, e.g. tappers or brushes. Which means that at the same under pressure and same sieving duration, exactly reproducible particle size analyses are possible at any time.
The strong jet of air exiting the rotating slotted nozzle purges the sieve gauze continuously.
This leads to exceptionally short sieving times and ensures that even those materials which are known to cause difficulty can be sieved successfully.
The transparent plastic cover permits constant monitoring of the sieving process.
The integrated processor permits direct conversion of the sieve residue (g) into the undersize fraction (%). The sieving results are displayed on screen or can be printed out by a matrix printer.
The basic unit has two serial interfaces to permit connection of a laboratory balance, printer, under pressure controller, electronic tapper and for optional PC operation, with the LS-PRO software.
This system works without any and all mechanical means of influencing the sieving process, e.g. tappers or brushes. Which means that at the same under pressure and same sieving duration, exactly reproducible particle size analyses are possible at any time.
The strong jet of air exiting the rotating slotted nozzle purges the sieve gauze continuously.
This leads to exceptionally short sieving times and ensures that even those materials which are known to cause difficulty can be sieved successfully.
The transparent plastic cover permits constant monitoring of the sieving process.
The integrated processor permits direct conversion of the sieve residue (g) into the undersize fraction (%). The sieving results are displayed on screen or can be printed out by a matrix printer.
The basic unit has two serial interfaces to permit connection of a laboratory balance, printer, under pressure controller, electronic tapper and for optional PC operation, with the LS-PRO software.
UNDERPRESSURE CONTROLLER The under pressure controller constitutes a process-technological enhancement of the 200 LS-N air jet sieve.
The sieve now has an automatic controller with motorized regulating flap which monitors the under pressure in the sieving chamber and thus the dispersion effect of the nozzle jet and which keeps the under pressure constant throughout the entire sieving process.
The sieve now has an automatic controller with motorized regulating flap which monitors the under pressure in the sieving chamber and thus the dispersion effect of the nozzle jet and which keeps the under pressure constant throughout the entire sieving process.
FULLY AUTOMATIC SIEVE IDENTIFICATION Manual input of the sieve mesh width is no longer necessary, thus reliably preventing sieve insert errors.
This is particularly advantageous for laboratories in which a number of different products are analyzed with different sieve sets. Control via either the unit itself or by means of the LS-PRO software with stored database.
This is particularly advantageous for laboratories in which a number of different products are analyzed with different sieve sets. Control via either the unit itself or by means of the LS-PRO software with stored database.
STANDARD EQUIPMENT
- Integrated processor permits direct conversion of the sieve residue (g) into the through fraction (%).
- Two RS-232 C serial interfaces for direct connection of a laboratory balance, printer, under pressure controller, electronic tapper and for optional PC operation with LS-PRO software package.
- Under pressure indicated in display.
- Sieving parameters can be entered via the membrane keypad.
TECHNICAL SPECIFICATIONS
- Connection 230 V, 50/60 Hz or 115 V, 50/60 Hz
- Nozzle drive Geared motor N = 20 W
- Slotted nozzle 1.4581
- Weight approx. 14 kg
- Interfaces 1 x 25-pin male socket, 1 x 9-pin male socket
- Connection 3 m with right-angle plug cable
ANALYSIS SIEVES 203-mm In new design with improved self-centering seat in the sieve housing. Only suitable for the new 200 LS-N air jet sieves.
Sieve frame and sieve deck made of stainless steel.
Certificate for analysis sieve (optional) with inspection certificate 3.1B as per DIN EN 10204. On-screen analysis including inspection certificate and results printed out as a table and also as a graph.
Ultrasonic cleaner (optional) 2 sizes, with sieve holder.
Sieve frame and sieve deck made of stainless steel.
Certificate for analysis sieve (optional) with inspection certificate 3.1B as per DIN EN 10204. On-screen analysis including inspection certificate and results printed out as a table and also as a graph.
Ultrasonic cleaner (optional) 2 sizes, with sieve holder.
MICRO-PRECISION SIEVES WITH SQUARE PERFORATIONS WIDTH 10 μm AND 20 μm The 200 LS-N can also be equipped with micro-precision sieves with square perforations down to 10 μm in width.
The sieves are characterized by their high degree of precision. The deviation between the effective and nominal perforation is less than 1 μm.
The sieves are characterized by their high degree of precision. The deviation between the effective and nominal perforation is less than 1 μm.
AVAILABLE SIZES FOR SIEVES
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Materials Testing Equipment