Operating Instructions for Sieving Machine Type AS 200 control Retsch GmbH 42781 Haan, Retsch-Allee 1-5, 2/7/2012 0002
Notes on these operating instructions.......................... 3 Warnings ................................................................. 3 Repairs ................................................................... 3 Safety .......................................................................... 4 Safety instructions .................................................... 4 Summary of safety instructions – part 1 ...................... 5 Summary of safety regulations – part 2 ......................
Notes on these operating instructions These operating instructions for the analytical sieving machine type AS 200 control give all necessary information on the sections mentioned in the contents. They give instructions to the target group(s) defined in the respective sections for safe, correct handling of the AS 200 control. It is important that each target group or groups is (are) familiar with the relevant section, in order to ensure safe, reliable handling of the machine according to its intended use.
Safety Target group: All persons concerned with the machine in any way. The AS200 is a modern, highly efficient product of Retsch GmbH, corresponding to state of the art. If the machine is used according to the intended purpose with a knowledge of this technical documentation it is completely safe and reliable to operate.
Summary of safety instructions – part 1 Safety instructions We exclude claims for damages in any form for damage to persons or property caused through non-observance of the following safety instructions. Technical data Do not make any changes to the machine and use only spare parts and accessories which have been approved by Retsch. The declaration of conformity to the European directives by Retsch will otherwise lose its validity. Furthermore this will result in the loss of any kind of guarantee claims.
Summary of safety regulations – part 2 Wet sieving Never operate your AS 200 control directly in water. Danger through current surge. During wet sieving always operate your AS 200 control connected to a mains socket which is protected by an FI protective (safety) switch. The water quantity added should always be dosed in such a way that the sieve surface is only just wetted. Use vent rings. Accumulation of water in the sieve set can cause overloading and therefore damage or destruction of the wire mesh.
Confirmation I have read and taken note of the sections – preliminary comments and safety __________________________________ Signature of operator __________________________________ Signature of service technician Retsch GmbH 7
Technical data Machine type designation: AS 200 control Use according to the intended purpose The AS 200 control has been specially designed for analytical sieves of diamter 100 mm to 203 mm. A further advantage is the very high addition quantity of material to be sieved, of up to 3 kg, which can be separated in one operation.
Emissions Noise characteristic values: Noise measurement is carried out according to DIN 45636-03101-KL3. The noise characteristic values depend on the set amplitude or sieve bottom acceleration, the number of sieves mounted and the type of material to be sieved. Example 1: Emission value related to workplace LpAeq = 63 dB(A) Operating conditions: Material to be sieved = quartz sand, grain size < 1mm, 5 sieves amplitude = 1.
Transport and installation Packing Packing has been adapted to the transport method and conforms to generally applicable packing guidelines. Please keep the packing material during the guarantee period since, in case of a complaint, your guarantee claim will be at risk if the machine is returned in inadequate packing. Transport The AS 200 control must not be knocked, shaken or thrown during transport, otherwise the electronic and mechanical components may become damaged.
Parameters for the installation location Ambient temperature: 5°C bis 40°C If the ambient temperature is exceeded or drops below the specified value the electrical and mechanical components may become damaged and the performance data can change to an unknown degree. Atmospheric humidity: Maximum relative humidity 80% at temperatures up to 31°C, with linear reduction down to 50% relative humidity at 40°C.
Operation Operating elements and operation A Cold apparatus plug combination C Fuse compartment with 2 glass fuses B Serial connection D Protective cap for serial connection E Switch ON / OFF, bottom left 1 1 2 3 4 5 2 + 7 8 9 + 15 16 4 5 6 7 8 9 10 11 12 13 14 15 16 PROG – button for calling preset sieving parameters P1-P9 or on and for ending programming without storing the parameters. Display memory shows the selected programme P1-P9 or on.
Insertion and clamping the analytical sieves The AS 200 control is suitable for analytical sieves of outside diameter 100 – 203 mm. Up to 8 analytical sieves plus the collecting bottom can be clamped in position. For this purpose various clamping units or clamping covers are available (see accessories). If the collecting bottom should stick to the smooth surface of the sieve support base when removing the sieve set, we recommend the use of talcum powder.
Clamping with the clamping unit comfort Screw support rod H into the sieve plate and tighten locknut. Place selected sieve set centrally on the sieve plate. H I Put the clamping cover – comfort over the support rods, causing the red lever I to be pressed upwards; place your index finger and middle finger on the casing. The green lever K remains in the upper position. K Slide the clamping cover up to the top sieve.
Operation of the AS 200 control Switching on / off The main switch E is located on the front left-hand side of the AS 200 control under the control strip. Switch on the main switch. In the memory display the last used function (on or P1 – P9) lights up. In the amplitude display the last used amplitude lights up. E The LED interval on or off lights up. In the time display the last used time lights up. The AS 200 control is now immediately ready for operation.
Adjusting the time On switching on the AS 200 control the sieving time is undetermined = 2 bars in display 13. Switching on the time 1 – 99 min: Button 12 reduces the time down to 1 min. If the value drops below this, two bars appear = undetermined sieving time. Button 14 increases the time up to 99 min. If this value is exceeded two bars appear = undetermined sieving time. 12 13 14 Memory – storage and calling sieving parameters 2 5 8 10 11 13 The memory function, i.e.
Amplitude in „mm“ In display 5, labelled with amplitude mm/g, twice the amplitude is shown as measured value. We refer to this measured value as amplitude in our further explanations. On switching on the AS 200 control the last used amplitude is displayed. Adjusting the amplitude from 0.20 – 3.00mm : Reduction: Button 4 reduces the amplitude down to 0.20 mm Keep button 4 pressed – after 5 sec fast adjustment is possible. If the value drops below 0.20 mm, 3.00 mm reappears.
Operating hours display If the buttons described below are pressed, the complete running time of the machine in hours and minutes can be displayed. Displaying the operating hours: 3 Press buttons 3 and 9 simultaneously and keep pressed The indication “bS” appears in the „memory“ display. 9 Passing out of the operating hours: Press button 16, STOP.
Quantities of material to be sieved The sieve set is made up of the collecting bottom and the analytical sieves, which are arranged one on top of the other according to increasing mesh size. In order to guarantee fast fractionating with an exact result, the quantity of material to be sieved should be adapted to the sieve diameter and the nominal mesh sizes. Guide values for this are given in the respective standards for sieve analysis.
Wet sieving In most cases dry sieving is possible. However, with some materials the adhesive forces between individual particles can cause difficulty. These problems can be overcome by adding a liquid, preferably water, during the sieving process (if the accessories mentioned in the section on sieving aids are not successful). However, wet sieving is possible only if the materials to be sieved do not swell, dissolve or change in any other way in the sieving liquid.
The water quantity added should always be dosed in such a way that the sieve surface is only just wetted. Use vent rings Accumulation of water in the sieve set can cause overloading and therefore damage or destruction of the wire mesh. Vent rings are necessary in order to prevent water accumulation. The loading diagrams given in these operating instructions are not applicable to wet sieving. Binding information on wet sieving is not possible owing to the non-definable water quantity in the sieve set.
Information on the sieve bottom acceleration mode The AS 200 control is a throwing-type sieving machine which gives you the possibility of specifying both the amplitude and the sieve bottom acceleration as sieving parameters. Throwing-type sieving machines, such as the AS 200 control, are usually based on a spring-mass system which is excited by the natural frequency.
Acceleration guide values In the technical literature* on plant engineering sieve bottom acceleration in „g“ is designated as the sieve characteristic value K , and the relationship between the sieve characterisitc value and sieving effect is described as follows: K („g“) Sieved material movement Sieving evaluation 1,0 No throwing, flowing or sliding movement Very sluggish sieving effect, sieve bottom is quickly blocked 1,5 Poor lifting of sieved material Sluggish sieving effect, sieve bottom block
Retsch Analytical sieves The highest precision for exact results The accuracy and the reliability of the analysis result are decisively dependent not only on the sieving machine delivering reproducible results, but also on the quality of the analytical sieves. Retsch analytical sieves are high quality measuring instruments for which only the fabrics and screens which comply with the relevant standards are used.
Working instructions Sieving aids When dealing with material that is difficult to separate, we recommend the additional use of sieving aids in the individual sieve fractions. Depending on the width of the sieve meshing and the preselected vibration intensity, pearls made of agate, rubber, porcelain or nylon bristles and Vulkollan cubes may be used. Also refer to the table below.
EasySieve Control, evaluation, documentation. EasySieve , the software package from RETSCH for grain size analysis, is superior to manual evaluation in many respects. This is because the software is able to perform the required measuring and weighing processes automatically – from determining the weights of the sieves to evaluating the data. And in a much more simple and comfortable manner – thus making life easier.
General Cleaning For thorough, gentle and time-saving cleaning of your analytical sieves we recommend Retsch ultrasonic baths. Please send for our special leaflet „Care and cleaning of analytical sieves”. Do not clean the AS 200 control under running water. Danger to life through current surge. Use only a cloth moistened with water. Solvents are not allowed. Maintenance If your AS 200 control is used for quality control it should be calibrated regulalrly according to DIN EN ISO 9000.
Wearing parts Item11 / Art. No. 03.243.0044 1x rubber ring Item 37 / Art. No. 05.699.0052 2x fuse cartridges Item 701.2 / Art. No. 32.142.0001 2x adjusting nuts M12 No repair instructions are included in these operating instructions. For your own safety repairs should be carried out only by Retsch GmbH or an authorized agency and service technicians.
CERTIFICATE OF CE-CONFORMITY Translation ANALYTICAL SIEVE SHAKER AS 200 control 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: EN 61000-3-2/-3 EN 61236 Electromagnetic compatibility (EMC) Electrical measuring, operating, controlling and laboratory equipment – EMCrequirements in conjunction with
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