basic digit Operating Instructions - AS200 Analytical Sieve Shakers Retsch GmbH , 42781 Haan , Retsch-Allee 1-5, Germany 31.07.
Information on these operating instructions The present operating instructions for the model AS200 analytical sieve shaker provide all the necessary information on the topics mentioned in the table of contents. These instructions will guide the reader to each topic necessary for safe use of the AS200, in accordance with the purpose for which the unit is intended. Familiarity with the applicable chapters is essential to safe and proper use of the equipment.
Information on these operating instructions .............. 2 Safety ............................................ 4 Safety notes ................................................. Warnings ................................................... Repairs .................................................... Confirmation ................................................ 4 5 5 5 Technical specifications .............................. 6 Utilization in accordance with the intended purpose ....................
Safety Target group: Everyone who deals with the machine in any manner whatsoever. The AS200 is a modern, high-performance product manufactured by the Retsch GmbH; it incorporates the latest technology. It is entirely safe in operation when used for the intended purpose and in accordance with the present technical documentation. Safety notes You, as the owner/operator, must ensure that persons who are entrusted with the operation of the AS200.
Warnings The following symbols are used to identify specific hazard potentials: ! Personal injury Property damage Repairs These operating instructions do not include any repair instructions. In the interest of your own safety, have repairs made only by the Retsch GmbH or an authorized representative (service technician).
Technical specifications Machine designation: AS200 Utilization in accordance with the intended purpose The AS200 is suitable for both dry and wet sieving of free-flowing, dispersed products where the input product exhibits grain size of up to a maximum of 25 mm. Do not make any modifications to the machine and use only RETSCH approved spares and accessories. Failure to comply will invalidate the CE declaration and guarantee.
Shipping and installation Target group: Owner, freight forwarder, operator Packing The type of packaging used has been selected in accordance with the shipping mode. It complies with generally applicable packaging guidelines. Please retain the packaging for the duration of the warranty since, in case of a claim, returning in unsuitable packaging can jeopadize your warranty entitlements Shipping During transportation the AS200 may not be subjected to impact or vibration; it must not be thrown.
Set up the AS200 only on a stable laboratory bench to avoid unpleasant transmission of vibrations. * Loosen the hexagonal nuts SM using an open-ended spanner until the sieve plate moves freely Unscrew the wing screws A (shipping nuts) with hexagonal nuts. Mount the appropriate sieve clamping device (See SM the chapter on operation for instructions) Keep the wing screws A with hexagonal nuts (shipping nuts) in a safe place for later transportation.
Operation Control elements and their use Schematic view of the operating controls: 31.07.
The operating controls and their functions Summary table Element AS200 model Description all models Shipping stabilization; wing A screw with nut and washer all models Socket AA Accessories Sieve fixing cover, standard B BB all models Fuse holder Accessory Sieve fixing cover, economy Accessory standard and economy fixing nuts standard and economy threaded spindles C D Accessory E F Accessory Hex nuts Accessory Quick-acting clamps Accessory comfort stationary rods G H I J K L 31.07.
The operating controls and their functions Summary table, part 2 Element AS200 Model Description AS200 digit Knob to decrease or increase MN1 AS200 basic vibration height, from 0.00 to 3.00 mm MN2 R1 S1 T1 U1 AS200 basic AS200 digit Interval ON button Left-hand LED lights AS200 basic AS200 digit AS200 basic AS200 digit Interval OFF button Right-hand LED lights Display: 0 to 99 min.
Installing and fixing the analytical sieves The AS200 is suitable for use with analytical sieves with outside diameters of up to 215 mm. It is possible to install up to 16 analytical sieves 25 mm high or 8 sieves 50 mm high, plus the base pan in each case. A variety of clamping units and covers is available for use with sieves from 100 to 215 mm O.D. (see the accessories listing).
Fixing with the sieve clamping unit – comfort * Screw the stationary rods H into the sieving plate * Center the selected sieve stack on the sieve plate. * Slide the comfort clamping cover B over the stationary rods, pressing the red lever I upward; the green lever K remains in the upper setting. * Slide the clamping cover down to the top sieve. * Press the green lever K downward several times; the red lever I must not be moved.
Operation for the AS200 digit Switching on and off The main switch J is located at the left-front on the AS200; see Fig. 8 * Turn the main switch on. * The interval off LED lights, Fig. 9 * Two bars light in the time display, see Fig. 9 The AS200 is now ready for operation, without the interval function, in continuous duty. Fig. 8 Start - Interrupt - Stop Fig. 9 Start: Fig. 9 * * Press the START button W1. The green LED above button W1 lights. Interruption (pause function): Fig.
Intermittent - Continuous operation Fig. 10 Intermittent operation is initially disabled when the AS200 is first switched on. Enable intermittent mode: Fig. 10 * * Press the R1 button. The LED above button R1 lights. Disable intermittent mode: Fig. 10 * * Press the S1 button. The LED above button S1 lights. Vibration height If you desire to work with vibration heights above 2.5 mm, we recommend running the AS200 up to this value slowly.
Reading the vibration height: Fig. 12 The vibration height is shown optically, on the front of the sieve plate. The intersection of the two lines shows the vibration height when the machine is running. In the illustration at the left the value is 1.8 mm. Fig. 12 Setting the time Fig. 13 The AS200 is set for continuous operation when it is first switched on.. Set the time for 1 to 99 min.: Fig. 13 * Pressing the U1 button will reduce the time down to a minimum of 1 min.
Operation for the AS200 basic Switching on and off The main switch J is located at the left-front on the AS200; see Fig. 14. * Turn the main switch on. * The ON LED lights, Fig. 15. The AS200 is now ready for operation. Fig. 14 Start - Stop Fig. 15 Start: Fig. 15 * Set knob UV2 for continuous operation . Stop (standby function): Fig. 15 * Set knob UV2 to I. Vibration height If you desire to work with vibration heights above 2.5 mm, we recommend running the AS200 up to this value slowly.
Reading the vibration height: Fig. 16 The vibration height is shown optically, on the front of the sieve plate. The intersection of the two lines shows the vibration height when the machine is running. In the illustration at the left the value is 1.8 mm. Naturally, your AS200 can only achieve the vibration heights which are within the values shown in the loading diagram. Fig. 16 Setting the time Fig. 17 Setting the time for 1 to 60 min.: Fig.
Working instructions Target group: Laboratory technicians Supplementary mass The use of a supplementary mass may be required only for 60 Hz units where, when using a small number of analytical sieves, insufficient vibration height is attained for your sieve analysis. (Refer to chart on page 9.) The auxiliary mass is mounted below the sieve stack, on the sieve carrier plate at the AS200, and clamped at the same time as the sieve stack.
Retsch analytical sieves are available in versions complying with all the usual national and international standards: * Standards available: DIN, ISO, ASTM, BS * Available diameters: 100 mm / 150 mm / 200 mm / 203 mm (8") * Available woven screens materials: Woven wire screens made of stainless steel Perforated plates made of stainless steel Specifics will be found in the detailed brochure describing the analytical sieves.
Distribution of the sieved product Even in procedures with only a single sieve, the AS200 will provide largely uniform distribution of the product across the sieve screen. Depending on the vibration height which is selected, the product will be moved slowly in a circular direction. Proper leveling of the AS200 is an important factor here. Leveling can be corrected by screwing the feet CC in or out as required. Fig. 19 Fig. 19 It is not necessary to lock the feet in position once adjustment has been made.
Amplitudes as funktion of loaded weight Please refer to the following charts Tolerances are 5% of the mass of the sieve stack These charts are to be understood as aids in orientation and are referenced to the rated voltage as indicated on the data plate. Fluctuations in line voltage and deviations from the rating will result in higher tolerances. Chart for the AS200 digit at 230 V, 50 Hz Vibration amplitudes from 0 to 3.
Chart for the AS200 digit and basic at 100 V, 50 Hz Vibration amplitudes from 0 to 3.0 mm Sieve stack masses = Sieve + collector bottom, without product being handled from 560 to 6250 grams grams Solid line = AS200 with standard / economy sieve clamping unit Line with circles = AS200 with “comfort” sieve clamping unit To achieve maximum vibration height, the AS200 is to be operated with a supplementary mass, available as an accessory, where the sieve stack mass is less than 2 kg.
Explanations of the loading charts The series AS200 analytical sieving machines are resonance-type units; the vibration heights (twice the amplitude) will depend on the loading in the sieve carrier. Here the masses which are joined solidly with the sieve carrier – those in the collector bottom and the sieve clamping units – play a primary part. The mass of the product being handled is of subordinate importance and is thus not taken into account when calculating the loading capacity.
Example 2 : * * * You are working with the AS200, 110V-60 Hz model The mass of the sieve stack (collector bottom and sieves) amounts to 1500 g. You are working with the comfort sieve clamping unit The crosshatched curve in the chart applies. The vibration height which can be achieved with your machine, under these conditions, is approx. 2.5 mm. Example 3 : * * * * You are working with the AS200, 110V-60 Hz model The mass of the sieve stack (collector bottom and sieves) amounts to 560 g.
Wet sieving Dry sieving will be possible in the large majority of cases. There are, however, some materials in which the adhesive forces between the individual particles can cause difficulties. These problems can be eliminated by adding liquid, preferably water, during the sieving operation (in so far as the additives mentioned in the chapter on “sieving aids” were not successful).
! Never place the AS200 directly in a basin for operation. Fatal electrical shock hazard. ! During wet sieving always connect the AS200 to a socket which is protected by a ground fault interrupter. Adjust the volume of water applied so that it will just wet the surface of the screen. Water backing up in the sieve stack can cause overloading and thus may damage or destroy the sieve weave.
General Accessories 31.07.
Cleaning For thorough, gentle and time-saving cleaning of your analytical sieves, we recommend using the Retsch UR1 ultrasonic intensive cleaning unit. Our publication "Care and cleaning of analytical sieve is available on request, free of charge. ! Never clean the AS200 with running water. Fatal electrical shock hazard. Use only a damp rag, moistened with water, for cleaning. Never use solvents of any kind. Maintenance Target group: Operating personnel The AS200 requires no routine maintenance.
Safety regulations for the AS200 Extract from the individual chapters Subject Vibration height Shipping Temperature fluctuation Scope of supply Ambient temperature Humidity Installation Electrical connection Sieving aids Sieved product distribution Wet sieving Cleaning 31.07.2012 Action Hazards Vibration height >2.5 mm in the Armature strikes the magnets; AS200 basic and digit models mechanical components could be damaged.
CERTIFICATE OF CE-CONFORMITY Translation ANALYTICAL SIEVE SHAKER AS 200 basic / digit Certificate of CE-Conformity according to: EC Mechanical Engineering Directive 2006/42/EC Applied harmonized standards, in particular: DIN EN ISO 12100 Security of machines EC Directive Electromagnetic Compatibility 2004/108/EC Applied standards, in particular: DIN EN 50081 Generic standard interference emission - living areas - in conjunction with EN 55022 and EN 60555 DIN EN 50082 Generic standard interference resis
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