Operating Instructions Heavy Duty Sieve Shaker "analysette 18"
Fritsch GmbH Laborgerätebau Industriestrasse 8 D - 55743 Idar-Oberstein Phone: *6784/ 70-0 Fax: *6784/ 70-11 E-Mail: info@fritsch.de Internet: http://www.fritsch.de Fritsch GmbH, Laborgerätebau has been certificated by the TÜV- Zertifizierungsgemeinschaft e.v. on June 24, 1994. An audit certificated the accordance of the Fritsch GmbH to the DIN EN ISO 9001. The enclosed declaration of conformity calls the directives which the analysette 18 corresponds to. This permitts us to mark the instrument with the CE-Sign. Instrument number 18.2010.00 and 18.2020.00 applies as of serial number 100 Edition 09/2003 Index 000
Table of contents page 1 General Information / Introduction...1 1.1 Notes about Operating Instructions... 1 1.2 Explanations of the signs at the instrument and in the operating instructions... 2 1.3 Short Description of the Machine... 3 1.3.1 Applications... 3 1.3.2 Method of Operation... 3 1.4 Technical Data... 4 2 Operating Safety...5 2.1 General Safety Instructions... 5 2.2 Operators... 6 3 Installing the unit...6 3.1 Unpacking... 6 3.2 Assembly... 6 3.3 Removal and Replacement of Transportation Bolts... 7 3.4 Levelling... 7 3.5 Sieve Stacking... 7 3.6 Electrical connection... 7 4 Using the sieve shaker...8 4.1 Sieve Stacking... 8 4.2 Controls... 8 4.2.1 Power Supply Unit Controls... 8 4.2.2 Mains Inlet... 8 4.2.3 Mains Switch... 8 4.2.4 Mains Connected Indicator... 8 4.2.5 Mains Power Indicator... 9 4.3 Power Supply Unit... 9 4.3.1 Removable Low Voltage Control Unit... 9 4.3.2 Mains Power Indicator... 9 4.3.3 Process Timer... 9 4.3.4 Start Button... 9 4.3.5 Run Indicator... 9 4.3.6 Stop Button... 9 4.3.7 Safety Key Lock... 9 4.3.8 Safety Instructions... 9 5 Cleaning...10 6 Maintenance...10 6.1 Fuse Replacement... 10 6.2 Motor Removal... 10 6.3 Spring Replacement... 11 7 Warranty...11 8 General Advice...11 analysette 18
1 General Information / Introduction 1.1 Notes about Operating Instructions The copyright to these technical documents is the property of Fritsch GmbH, Manufacturers of Laboratory Instruments. These operating instructions are not to be reprinted or copied without the express approval of Fritsch GmbH. Please study these instructions carefully before operation. All operators must be familiar with the contents of the operating instructions. Please observe all notes concerning your safety. The sieve shaker was designed with the user's safety in mind, however inherent risks cannot be excluded. Follow the advices in these instructions to avoid risks to users. The symbols in the right hand margin highlight the risks described in the text. Symbols are also to be found on the instrument warning users of possible risks. Warning symbols are surrounded by a triangle. These operating instructions do not constitute a complete technical description. They describe only the details required for safe operation and maintenance for usage under normal conditions. analysette 18 page 1 Attention! observe operating instructions
1.2 Explanations of the signs at the instrument and in the operating instructions Attention! warning against danger spot observe operating instructions Attention! mains voltage Attention! risk of explosion Wear protective gloves! Wear ear protectors! Wear safety goggles! Do not step below lifted load! analysette 18 page 2
1.3 Short Description of the Machine 1.3.1 Applications The analysette 18 is a heavy duty vibrating shaker designed to conduct sieve tests in conjunction with sieve stacks for particle sizing of various material samples. It is a heavy duty sieve shaker for separation and classification of grain fractions, which has analytical screens up to 400 mm or 16" in diameter. It is especially suitable for particle size analysis or for separation of coarse-grained material in large quantities. The movement of a rotary sieve is a three dimensional movement, which is why it is often employed whenever mechanical screening has the advantage over hand screening for reasons of cost, or because of the required reproducibility of the results. 1.3.2 Method of Operation By utilising two off-set vibratory motors, mounted directly onto a location plate, the analysette 18 induces both vertical and rotational movement of the sample. This produces the optimum action for effective and efficient sieving. The analysette 18 is a fixed amplitude shaker. An incremental timer provides a range of pre-set and repeatable sieve test run times. The analysette 18 is not recommended for any Wet Sieving operation. The analysette 18 is fully EMC and LVD compliant and complies with all relevant European directives. analysette 18 page 3
1.4 Technical Data Model Heavy Duty Sieve Shaker analysette 18 Dimensions and Weight Dimensions: 385 mm High (excluding rods) 1,135 mm High (775 mm rods fitted) 580 mm Square Weight: 92 kg (net) Operating Noise The noise level can be as high as approx. 60dB (A). The value fluctuates greatly depending on the numbers of sieves used and the material being sieved. Voltage and Power consumption Voltage: 110 230 Frequency: 50 Hz/60 Hz 50 Hz/60 Hz Phase: Single Power conspt. 280VA 480 VA Transient over voltages according to over voltage category II allowed. Electrical Fuses (Live & Neutral) These are 1¼ inch long anti-surge ceramic fuses that protect the electrical components within the equipment. It is important that the recommended current rating is not exceeded (3.15 amperes for 230 volts, 5 amperes for 110 volts) and the fuse is replaced with the same type and size. If the fuse blows after replacement then a fault exists in the equipment. Class 1 (earthed) Motor Speed 1,500 per min at 50 Hz 1,500 per min at 50 Hz 1,800 per min at 60 Hz 1,800 per min at 60 Hz Process Time 5 to 60 minutes Fritschs policy is one of continuous development and we reserve the right to modify future models. analysette 18 page 4
2 Operating Safety 2.1 General Safety Instructions Read the operating instructions carefully before use. The instrument can only to be used for the purpose described in Chapter Short Description of the Instrument Use only original accessories and original spare parts. Failure to do so may call into question the performance of the instrument. Do not use damaged accessories. The operators must be familiar with the contents of the operating instructions. To this end, for example, the operating instructions must with the instrument. Do not remove labels. Protective devices must not be made unserviceable or removed. Unauthorized modification of the instrument or any part thereof will result in the loss of the conformity to European directives which is asserted by Fritsch and the warranty. Wear protective gloves! Grinding bowls may be very hot after grinding. Wear safety glasses Don t run the instrument several hours without cooling phases - Danger of overheating. The analysette 18 is not recommended for any Wet Sieving operation. Behaviour at all times must be such as to strictly preclude any accidents. Furthermore, the MAC values at place of work specified in the pertinent safety regulations must be adhered to. Where applicable, ventilation must be provided or the instrument must be operated under an exhaust hood. When oxidizable materials such as metals, organic materials, wood, coal, plastic, etc. are sieved, the risk of spontaneous ignition (dust explosion) exists whenever the fine particles exceed a specific percentage. While such materials are being sieved, it is therefore necessary to take special safety precautions (e.g. wet grinding) and the work must be supervised by a specialist. The instrument is not explosion-proof and is unsuitable to grind or sieve materials which are explosive, combustible or promote combustion. Do not allow the analysette 18 to run unsupervised. Due to the vibrations, under certain operating conditions, the machine may creep along the surface on which it is located or mounted. analysette 18 page 5 Attention! observe operating instructions wear protective gloves wear safety goggles! wear ear protectors! Attention! risk of explosion
2.2 Operators No one other than authorized persons should operate the instrument and it must be serviced and repaired by trained specialists. No one suffering from medical problems or under the influence of medications, drugs, alcohol or overtiredness should be permitted to operate the instrument. 3 Installing the unit 3.1 Unpacking The shaker should be set up according to the following procedure and the diagram opposite. The internal packing and the following list of items should be removed from the case and checked before the analysette 18 is removed : 1 off Instruction Manual. 2 off Lifting Eyebolts. 2 off Long Clamp Rods. 2 off Standard Clamp Rods. 2 off M12 Plated Lock Nuts. 2 off M12 Plated Plain Washers. 1 off Clamp Plate complete with Clamping Assemblies. 1 off Control Unit (complete unit with 2 safety keys) 1 off Short Control Cable. 1 off Long Control Cable. 1 off Mains Cable. 3 off 10 mm Diameter. Location Pins. 3 off 15 mm Diameter. Location Pins. Screw the two M12 eyebolts provided into the top location plate and using a suitable lifting device, lift the analysette 18 and packing case on to suitable blocks to access the underside and remove the two M12 transit bolts. Do not lift the analysette 18 by the location plate without the transportation bolts fitted. 3.2 Assembly Once removed, lift the analysette 18 from the packing case and position on a level, rigid and robust floor, suitable for the operation of the sieve shaker (placing the shaker on a level surface ensures an even distribution of the sample over the sieves and ensures machine stability). Take Care as the shaker weighs 92 Kg When the analysette 18 is placed in its operating position the lifting eyebolts and transportation bolts can be removed, see diagram below (Retain for future use). analysette 18 page 6
3.3 Removal and Replacement of Transportation Bolts Fit one M12 nut and washer provided onto each clamp rod selected for use, then screw the pair of clamp rods into the location plate and tighten the locknuts. Warning: Transportation bolts must be removed before operating machine. 3.4 Levelling Release the locknuts on the machine feet and adjust until the shaker is level, then retighten the locknuts. 3.5 Sieve Stacking The analysette 18 shaker accommodates up to the following number of sieves in a stack plus the required lid and receiver: Diameter 350 mm 400 mm 450 mm/18 inch 8 7 5 Screw the appropriate location pins into position on the location plate for the sieve stack range selected. Use the 15 mm diameter pins for the metric (350, 400 & 450 mm) range of sieves and the 10 mm diameter pins for the imperial (18 in.) sieves. Place the receiver centrally between the location pins. Stack the required sieves on top of the receiver. Put the sample under test in the top sieve and fit the lid. 3.6 Electrical connection Ensure that the voltage and frequency on the Rating Label at the rear of the shaker correspond with the electrical mains supply. If there is any discrepancy, please consult your supplier or a qualified electrician. Do Not Connect to any other supply other than that stated on the nameplate Important - This equipment must be connected to mains earth The analysette 18 sieve shaker is provided with a detachable 2 metre long mains cable, incorporating an IEC moulded connector and plug suitable for connecting to the local mains supply. Certain models may be supplied with a fused plug. In the event of failure the fuse must be replaced with a fuse of identical rating. For starting up the sieve, the main switch on the front must be switched on. The timer should be in the "Off" position. The green standby indicator should be on. analysette 18 page 7
4 Using the sieve shaker 4.1 Sieve Stacking Align the locking assemblies in the two side lugs of the clamp plate with the round clamp rods. Slide the clamp plate down squarely onto the lid at the top of the sieve stack. Ensure that the clamping hand wheels at the top are loose and the locking assemblies are fully pushed down. There should be a 5 mm gap between the large plain washer and the face of the hand wheel. Place one hand on the top of the clamp plate and hold square while locking one side handle lever. Repeat for the opposite side handle lever. The side handle levers can be set vertically downwards by pressing on the RED button and pulling the handle outwards to release. Turn the handle to a safe, convenient angle downwards and release to engage the teeth. Screw the two clamping hand wheels down simultaneously to ensure the clamping plate is square. Continue until the hand wheels are tight against the internal stop. Hand tightness must be exerted so that the assembly does not loosen during vibration. The locking side handle levers and clamping hand wheels must be tightened sufficiently to ensure that the sieves and receiver are clamped securely during operation. Damage may occur if the shaker is allowed to operate with a loose clamping plate. 4.2 Controls Operators should be familiar with, and fully understand the controls and indicators before operating the machine. 4.2.1 Power Supply Unit Controls The power supply unit is mounted in the rear of the shaker base, the following controls and indicators are on this: 4.2.2 Mains Inlet Mains inlet with integral line filter. Ensure the IEC connector on the mains lead is pushed fully into the inlet. 4.2.3 Mains Switch This controls the electrical supply to the equipment. The side marked I is On and the side marked O is Off. 4.2.4 Mains Connected Indicator This indicates electrical power is connected to the equipment, even though the Mains switch is in the OFF position. The l.e.d. is illuminated when the IEC connector is pushed fully into the inlet and power is switched on at the local outlet. If the l.e.d. fails to light with the local outlet switch in the ON position then a Fuse has blown or power is not present at the mains analysette 18 page 8
4.2.5 Mains Power Indicator The l.e.d. indicates that power has been switched ON at the Mains switch. The shaker will operate when the appropriate actions or settings are made on the low voltage control unit. 4.3 Power Supply Unit 4.3.1 Removable Low Voltage Control Unit The control unit can be mounted on the front of the shaker base (use the short low voltage cable) or in some other suitable remote position ie. bench, desk or wall mounted, where connection is made using the three metre long low voltage cable, which should be positioned to avoid trapping or creating any safety hazards. Do not connect or disconnect the control unit while the Power is connected 4.3.2 Mains Power Indicator The l.e.d. indicates that power has been switched ON at the Mains switch at the rear of the shaker. 4.3.3 Process Timer Sets the overall time of the sieving operation. It may be set for operating periods of 5 to 60 minutes in 5 minute increments, the setting is increased by rotating clockwise and decreased by rotating anticlockwise. 4.3.4 Start Button Operates the machine when all conditions are satisfied. 4.3.5 Run Indicator The l.e.d. indicates that the shaker is operating. 4.3.6 Stop Button Stops the shaker during operating mode. The shaker cannot be restarted until the Reset Alarm sounds after approximately 20 seconds. 4.3.7 Safety Key Lock Immobilises the shaker during loading or unloading sieves, the Safety Key Lock also isolates the Start button which prevents the shaker from being restarted. 4.3.8 Safety Instructions Take Care that there are no loose sieves on the shaker! Do not attempt to remove the sieves before the shaker has come to a halt Do not unscrew clamping hand wheels or side handle levers while shaker is in operation analysette 18 page 9
5 Cleaning The machine can be cleaned with a soft damp cloth using a solution of water and a mild liquid detergent. Do not use any solvents for cleaning Do not allow any liquids to seep into the machine. 6 Maintenance Before commencing maintenance work, disconnect the mains plug and secure the machine against being switched on again unintentionally. When maintenance work is being performed, this should be indicated with a warning sign. The Fritsch analysette 18 sieve shaker is maintenance free o- ther than keeping external surfaces clean. 6.1 Fuse Replacement Should a fuse require replacement this must be of the identical type and rating as the original. The rating of the fuse is marked on a label above the fuse. Switch off the mains supply at the switch at the rear of the shaker and remove the mains cable. Unscrew the central cap of the fuse holder with a suitable coin or screwdriver, extract the holder and the fuse together. Remove the blown fuse or fuses and place the new fuse in to the metal retaining spring within the cap. Fit the cap and fuse back in the holder and screw in fully. Do not over tighten All replacement parts must be ordered by quoting the shaker serial number and the correct part number. Part numbers can be obtained from our sales or technical department. 6.2 Motor Removal Disconnect the electrical supply from the machine. Remove the clamp rods and location pins. Refit and tighten the three M6 transportation bolts through the outermost location pin holes. Carefully turn the shaker over to access the motors from underneath. Disconnect the wiring from the motor (noting the colour/ terminal connection). The bolts holding the motors can now be removed, to release the motors. To reassemble the shaker, reverse the actions listed above insuring that the fixing bolts are tightened to a Torque of 7.5 Kg.m. analysette 18 page 10 Fehler! Verweisquelle konnte nicht gefunden werden. Attention! mains voltage
6.3 Spring Replacement If a problem develops on any of the spring assemblies it is recommended that the parts are replaced as a complete set of four. Follow sequence above in the Motor Removal section. Carefully turn the shaker back over. Loosen the four spring fastening screws on the location plate. Remove the Three M6 transportation bolts from the location pin holes. Lift the location plate off the shaker base. The spring assemblies can be removed by loosening the four spring fastening screws on the base. To reassemble the spring assemblies, reverse the actions listed at 2 to 6 above, and then follow the instructions in the Motor Removal section to rebuild the shaker. 7 Warranty The warranty card enclosed with this shipment must be returned to the supplier completely filled out in order for the warranty to take effect. Fritsch GmbH of Idar-Oberstein and our "Application technology laboratory" and/or our agent in your country will be glad to advise and aid you. In order to answer any questions you may have, we will require the serial number stamped on the nameplate. 8 General Advice Fritsch shakers are fully tested and factory checked before shipping to customers. No parts require lubrication or resetting unless disturbed. The sieve shaker has been constructed and factory tested to ensure correct operation when connected to the specified electricity supply indicated on the machines rating plate. Use of unapproved spares or any alteration to the machine would invalidate all warranties and compliance with European directives for 'CE' Marking. Fritsch does not accept any responsibility if the operating instructions contained in this manual are not strictly followed. Warning Note: The analysette 18 is not recommended for use with liquids. analysette 18 page 11