Operating instructions for sieving m achine type AS300 control Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany, 07/02/2012 0002
Information on these operating instructions The present operating instructions for the model AS300 control analytical sieving machine provide all the necessary information on the headings contained in the table of contents. They act as a guide for the reader(s) defined for each topic necessary for safe use of the AS300 control in accordance with its intended purpose.
Information on these operating instructions ................ 2 Safety .......................................................................... 4 Safety instructions .................................................... 4 Warnings ................................................................. 5 Repairs ................................................................... 5 Confirmation ............................................................ 5 Technical specifications ..................................
Safety The AS300 control is a modern, high-performance product manufactured by 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.
Warnings The following signs are used to warn of hazards: Personal injuries Material damage Repairs These operating instructions do not contain any repair instructions. In the interests of your own safety, repairs should only performed by Retsch GmbH or an authorised representative (service technician).
Technical specifications Machine designation: AS300 control Intended use The AS300 control has been specially designed for analytical sieves with a diameter of 305 mm (12“) to 315mm. This makes the available sieving area 2.5 times greater than sieves with a 200 mm diameter. The AS300 control thereby allows the average sieving times to be shortened. A further benefit is the very high working quantity of material to be screened (6 kg) which can be separated in one work process.
Emissions Characteristic noise values : Noise measurement according to DIN 45635-031-01-KL3 The characteristic noise values are determined primarily by the set amplitude width or sieve plate acceleration, the number of sieves deployed and the nature of the material to be screened. Example : Sound power level LWA = 64 dB(A) Workplace-related emission value LpAeq = 59 dB(A) Operating conditions : Material to be screened = quartz sand, grain size <1mm, 5 sieves Amplitude width = 1.
Transport and assembly Packaging The packaging used is selected with the shipping mode in mind. It complies with the generally applicable packaging guidelines. Please retain the packaging for the duration of the warranty since, in case of a complaint, returning in unsuitable packaging can jeopardize your warranty claims. Transport During transportation, do not subject the AS300 control to impacts, jolts or vibrations. The electronic and mechanical components could otherwise be damaged.
Requirements for the assembly site Ambient temperature : 5°C to 40°C When the ambient temperature exceeds or falls below that specified, the electrical and mechanical components may be damaged, and performance data changed to an unknown extent. Humidity : Maximum relative humidity 80% at temperatures up to 31°C, linear decline down to 50% relative humidity at 40°C At a higher humidity, the electrical and mechanical components may be damaged, and performance data changed to an unknown extent.
Operation Operating elements and their use A Cold device plug combination C Fuse drawer with glass fuses B Serial connection D Protective cap for the serial connection E ON / OFF switch, left bottom 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.
Installing and tensioning the analytical sieves The AS400 control is suitable for use with analytical sieves with outer diameters of 305-315mm. Up to 8 analytical sieves plus base pan can be clamped in. A clamping unit and cover are available for this purpose (see the accessories listing). G F H I Screw the threaded rods H into the sieve disk screws and lock with the hex nuts I. Center the selected sieve stack on the sieve disk Lay the clamping cover F over the threaded rods on the top sieve.
Operating the AS300 control Switching on and off The main switch E is located at the left front of the AS300 control under the operating element. Turn the main switch on On illuminates in the memory display 1,00 illuminates in the amplitude display The interval off LED illuminates E Two bars illuminate in the time display (- -) The AS300 control is now ready for operation, without intermittent mode, in continuous duty, with a vibration height of 1.00mm.
Intermittent – continuous operation When the AS300 control is switched on, intermittent operation is initially disabled. Enabling intermittent mode of 10-99 sec. : 7 8 9 10 11 Press key 10 The LED above key 10 illuminates Display 8 shows 10 sec. Pressing key 9 raises the interval period up to 99 sec. If 99 sec is overshot, start again with 10 sec. Key 7 reduces the interval period down to 10 sec. If 10 sec. is undershot, start again with 99 sec.
Vibration height in "mm" A value twice the amplitude is shown as the measured value in display 5 marked amplitude. We refer to this measured value throughout these instructions as the vibration height. When the AS300 control is switched on, the vibration height is preset to 1.00 mm. Setting the vibration height from 0.20 – 2.20mm : Reduce : Key 4 reduces the vibration height down to 0.20 mm Hold down key 4, after 5 sec. the rapid adjustment function will commence If 0.20 mm is undershot, 2.
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.
Information on sieve plate acceleration mode The AS300 control is a throw sieve which allows you to set both the amplitude and the sieve plate acceleration as sieving parameters. Throw sieves such as the AS300 control are generally based on a spring/mass system which is exited in inherent frequency.
Time correction Our investigations have shown that the switch to specifying the sieve plate acceleration instead of the amplitude is the most significant influencing variable when sieving at varying frequencies. Nevertheless, it is clear that an equal sieving time at 60Hz will involve 20% more sieve strokes than at 50Hz, which basically is on a par with an extension to the sieving time.
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.
Wet sieving Target group: Owner, operator 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 control “g” directly in a basin for operation. Fatal electrical shock hazard. During wet sieving always connect the AS200 control “g” 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.
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 the Retsch ultrasonic baths. Ask for our special publication "Care and cleaning of analytical sieves" free-of-charge. Do not clean the AS300 control with running water. Danger to life from electrical shock Only use a rag moistened with water. Never use solvents.
Safety regulations (table) for the AS300 control from the chapters Process Action Hazards Safety Non-compliance with safety instructions leads to material damage and injuries to people Retain the packaging until the warranty time has elapsed Packaging Transport Temperature fluctuations Scope of supply Ambient temperature Humidity Transport fastening Electrical connection Cleaning Any and all claims to damages are excluded Your warranty claim can be threatened in case of complaint if a part is ret
Parts subject to wear and tear Item 11 / Art. No. 03.243.0052 1x rubber disk Item 37 / Art. No. 05.699.0075 2x fuse insert Item 701.2 / Art. No. 03.070.0029 2x tightening nut M12 These operating instructions do not contain any repair instructions. In the interests of your own safety, repairs should only performed by Retsch GmbH or an authorised representative (service technician).
CERTIFICATE OF CE-CONFORMITY Translation ANALYTICAL SIEVE SHAKER Type AS 300 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
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