Retsch AS200 Скачать руководство пользователя страница 20 | Manualshive

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21.11.2001



Retsch GmbH

20

Doc. No E98.014-016.9999 A

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. Depending on the loading situation, resonance
(harmonic reinforcement) effects can be induced, causing
the armature and the yoke of the magnet to make contact.

Fig. 11

Setting the vibration height (twice the

amplitude), from 0 to 3.00 mm: Fig. 11

* Turn

the

MN1

knob to the left to reduce the vibration

height, to the right to increase.

The values shown on the potentiometer scale are for
orientation purposes only. There is no absolute
relationship to the actual vibration height and thus this
scale cannot be used as an aid in reproducing previous
values.
Naturally, your AS200 can only achieve the vibration
heights which are within the values shown in the loading
diagram.

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Содержание AS200

Страница 1: ... Retsch GmbH 42781 Haan Rheinische Str 36 Germany Doc Nr E98 014 016 9999 A Operating Instructions AS200 Analytical Sieve Shakers ...

Страница 2: ...c 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 The present technical documentation has been designed for use both as a learning tool and a reference source Each of the chapters represents a self contained unit These operating instructions do not contain...

Страница 3: ...terrupt Stop 15 Signal at conclusion of sieving 16 Intermittent Continuous operation 16 Vibration height 17 Setting the time 18 Serial PC port 18 Making the connection 18 Software 18 Operation for the AS200 digit 19 Switching on and off 19 Start Interrupt Stop 19 Intermittent Continuous operation 20 Vibration height 20 Setting the time 21 Operation for the AS200 basic 22 Switching on and off 22 St...

Страница 4: ...iate and unrestricted access to the technical documentation for this machine new personnel shall have been made familiar with safe and appropriate use of the AS200 before starting work with the machine through instruction by a qualified person and or with the help of the present technical documentation Incorrect operation can result in injuries to persons and damage to property You bear responsibi...

Страница 5: ...n In this case please notify the following Local Retsch representative Your supplier The Retsch GmbH Your address for service _____________________________________ _____________________________________ _____________________________________ _____________________________________ _____________________________________ Confirmation I have familiarized myself with the foreword to the operating in struct...

Страница 6: ...le 1 Sound power level LWA 71 dB A Workplace related emission LpAeq 63 dB A Operating conditions Sample material quartz grain size 1 mm 5 sieves vibration height 1 5 mm Example 2 Sound power level LWA 76 dB A Workplace related emission LpAeq 67 dB A Operating conditions Sample material quartz grain size 1 mm 5 sieves vibration height 3 mm Electromagnetic compatibility EMC Strong electromagnetic in...

Страница 7: ...Temperature fluctuations In case of wide temperature fluctuations during shipment by air for instance the AS200 will have to be protected against condensation the electronic components could otherwise be damaged Intermediate storage Also ensure that the AS200 is stored in a dry place Standard equipment AS200 1 line power cord 1 serial connector cable PC to AS200 1 copy of the operating instruction...

Страница 8: ...pping nuts SM Set up the AS200 only on a stable laboratory bench to avoid un pleasant 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 the chapter on operation for instructions Keep the wing screws A with hexagonal nuts sh...

Страница 9: ...t the values shown there correspond to those for the local power supply Use the supplied power cord to connect the AS200 to the power supply When connecting the power cord to the power source be sure that the supply circuit is fused in accordance with local codes Failure to observe the values on the data plate can cause damage to either the electrical or the mechanical components or both ...

Страница 10: ...21 11 2001 Retsch GmbH 10 Doc No E98 014 016 9999 A Operation Target group Operators Control elements and their use Schematic view of the operating controls ...

Страница 11: ...tion with the B or C sieve fixing cover they secure the sieve stack DD AS200 control Cover cap Protects the serial interface port against dust and water protection class IP 65 E Accessory standard and economy threaded spindles Used together with the B or C sieve fixing cover and the nuts D they secure the sieve stack F Accessory Hex nuts Locks the threaded spindles E screwed in place on the sieve ...

Страница 12: ...rval 1 to 99 sec R R1 AS200 control AS200 digit Interval ON button Left hand LED lights Switches the AS200 into the interval mode Will be disabled when the machine is first switched on S S1 AS200 control AS200 digit Interval OFF button Right hand LED lights Switches the AS200 to the continuous operation mode T T1 AS200 control AS200 digit Display 0 to 99 min Shows the sieving duration from 1 to 99...

Страница 13: ...hreaded rods E into the sieve plate and lock with the hex nuts F Center the selected sieve stack on the sieve plate Lay the economy C or standard B sieve cover on the top sieve around the threaded rods Tilt the clamping nuts D to slide them over the stationary threaded rod and down to the sieve cover turn down hand tight We recommend using talcum powder if the base pan sticks to the smooth surface...

Страница 14: ...wn to the top sieve Press the green lever K downward several times the red lever I must not be moved To release use the thumb to press the red lever I upward the sieve cover can now be slid upward Rest the index and middle fingers on the top of the housing G If after the sieving process the red lever I proves to be difficult to move then the green lever K and the red lever I are to be pressed simu...

Страница 15: ...tart Fig 2 Press the START button W The green LED above button W lights Display L shows the run up to the predetermined value During the sieving period the vibration height will be kept constant within the predetermined tolerances Interruption pause function Fig 2 Press the STOP button X once The red LED above button X lights The values remain visible in the displays Press the START button W The s...

Страница 16: ...inuous operation Fig 4 Intermittent operation is initially disabled when the AS200 is first switched on Enable intermittent mode 1 to 99 sec Fig 4 Press button R The LED above button R lights Display O shows 10 sec Pressing button Q will raise the interval period up to as much as 99 sec When the 99 sec value is exceeded the display will cycle back to 1 sec and continue from there Pressing button P...

Страница 17: ...The M button reduces the vibration height down to as little as 0 20 mm in discrete steps Hold down button M after 5 sec the rapid adjustment function will commence Once the 0 20 mm value is reached the system will cycle back to 3 00 mm and continue from there Increase Pressing the N button increases vibration height in discrete steps up to a maximum of 3 00 mm Hold down button N after 5 sec the ra...

Страница 18: ...dicating continuous operation Pressing button V raises the time up to 99 min When this value is passed the two bars indicating continuous operation will appear Serial PC port Fig 7 The AS200 control can be connected with a personal computer using the serial port Protective cap DD keeps dust and water from entering the connector when not in use Making the connection Fig 7 Unscrew the cap DD Attach ...

Страница 19: ... 9 Start Fig 9 Press the START button W1 The green LED above button W1 lights Interruption pause function Fig 9 Press the STOP button X1 once The red LED above button X1 lights Sieving is suspended values remain visible in the display Press the START button W1 The sieving process will be resumed Stop standby function Fig 9 Press the STOP button X1 twice Red LED above button X1 lights The entire di...

Страница 20: ... slowly Depending on the loading situation resonance harmonic reinforcement effects can be induced causing the armature and the yoke of the magnet to make contact Fig 11 Setting the vibration height twice the amplitude from 0 to 3 00 mm Fig 11 Turn the MN1 knob to the left to reduce the vibration height to the right to increase The values shown on the potentiometer scale are for orientation purpos...

Страница 21: ...ration 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 Once this value has been passed two bars will appear indicating continuous operation Pressing button V1 raises the time up to 99 min When this value is ...

Страница 22: ...k with vibration heights above 2 5 mm we recommend running the AS200 up to this value slowly Depending on the loading situation resonance harmonic reinforcement effects can be induced causing the armature and the yoke of the magnet to make contact Setting the vibration height twice the amplitude from 0 to 3 00 mm Fig 15 Turn the MN2 to the left to reduce the vibration height to the right to increa...

Страница 23: ...hts 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 17 Turn the knob UV2 to the right to set the desired running period Switching on continuous operation Fig 17 Turn the knob UV2 to the left to the symbol Replacing the fuses All AS200 models Fig 18 Two glass tube micro fuses 4 A slow blow 5 20 mm will be required for all ...

Страница 24: ...s Depending on the screen size and the vibration intensity pearls made of agate rubber china or nylon bristles and Vulkollan cubes may be used Ensure that the openings in the sieve mesh are not stretched by overloading with sieving aids as this would have a detrimental effect on the precision of your analytical sieve Refer to the paragraph on product quantities for information on suitable charges ...

Страница 25: ...tack required for sieve analysis is composed of analytical sieves which are arranged one above the other with progressively larger holes toward the top together with the base pan Quantity of product to be sieved To ensure fast separation and exact results the quantity of the product being examined should be matched to the sieve diameter and the nominal size of the openings The specific standards f...

Страница 26: ...owly 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 When carrying out sieving processes with only one to three sieves we recommend using the short threaded rods see accessories list Overly long rods ex...

Страница 27: ...gher tolerances Chart for the AS200 control and digit at 230 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 Chart for the AS200 basic at 230 V 50 Hz with clamping unit economy Vibratio...

Страница 28: ... to be operated with a supplementary mass available as an accessory where the sieve stack mass is less than 2 kg Subject to technical modification without prior notice Chart for AS200 control digit and basic at 110 120 V 60 Hz Vibration heights from 0 to 3 0 mm Sieve stack masses Sieve collector bottom without product being handled from 560 to 4650 grams grams Solid line AS200 with standard econom...

Страница 29: ...ing unit its high intrinsic weight will naturally impart to your sieving machine different operating characteristics than you will find with the standard sieve clamping unit Refer to the charts on pages 28 and 30 and the following ex amples The lower loading capacities for the 60 Hz model when compared with the 50 Hz model are due to physical factors Utilizing a supplementary mass available as an ...

Страница 30: ...ng the supplementary mass accessory You are working with the standard sieve clamping unit The curve in the chart identified with the circles is appli cable The vibration height which can be achieved with your machine under these conditions is approx 1 6 mm Without the supplementary mass it would be possible only to achieve vibration height of 0 6 mm or less In normal applications vibration heights...

Страница 31: ...Position your AS200 near a water drain Use a hose to connect the spray nozzle in the clamping cover to a water faucet Connect the drain from the base pan with the drain or a suitable container to receive the liquid Operation Apply the solid in the form of a suspension Set the liquid water supply rate so that the spray just covers the sieve surface completely Using dispersion agents is advisable Th...

Страница 32: ... 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 The loading capacity charts provided in the Appendix to these operating instructions are not applicable to wet sieving Due to the difficulty in defining the volume of water in the sieve stack it is impossible...

Страница 33: ...ving clamping cover economy standard for sieves 100 150 200 203 mm in diameter Universal wet sieving clamping cover comfort for sieves 100 150 200 203 mm in diameter Short threaded rods for shorter sieve stacks max 5 analytical sieves each 50 mm high Auxiliary weight 2100 grams Conversion kit vibration ball mill for the AS200 basic and digit Cover for dust protected storage of complete sieve stack...

Страница 34: ... unavoidable clamping grooves in the mounting bars after a certain period of time this grooving can interfere with proper clamping Consequently it is necessary to examine the mounting rods occasionally to ascertain whether such grooving has taken place in the clamping area and if indicated to rotate the mounting rods through 90 A 17 mm open end wrench will be required for this purpose Loosen the l...

Страница 35: ... could be damaged Humidity Exceeding 80 R H at temperatures up to 31 C Electronic components could be damaged Installation Shipping nuts not removed Mechanical and electronic components could be damaged Electrical connection Local power supply does not correspond to the values given on the data plate Mechanical and electrical components could be damaged Sieving aids Stretching the sieve weave due ...

Страница 36: ...f the performance descriptions contained in the order confimation even if these differ from the order In the latter event the customer may within two weeks after receipt of the order confirmation draw any possible difference from the order to our attention and come to an agreement on these with us If the customer does not object to the specifications in the order confirmation then these shall be d...

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