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USER GUIDE

FLUID BED DRYER

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Содержание Fluid Bed Dryer

Страница 1: ...USER GUIDE FLUID BED DRYER...

Страница 2: ...ge 11 Pages 12 14 Chapter 2 Operating Procedure Operating Overview Setting the Conditions Setting the Timer Control Setting the Temperature Control Setting the Blower Starting and stopping General Opt...

Страница 3: ...red Quantity required Date required and any special shipment request Delivery address Purchase request order reference If you require technical assistance please have the following information ready S...

Страница 4: ...with this instrument may be reproduced or transmitted without the prior written consent of Endecotts Safety Instructions Throughout this manual the reader s attention is drawn to specific safety inst...

Страница 5: ...work with the Fluid Bed Dryer For your own safety and those of others please ensure the operator or personnel in charge of the location has received proper training Setting Up the Instrument The inst...

Страница 6: ...he operator to have complete control a compile a record of the drying process The main components are shown below Air is drawn in through a Stainless Steel Inlet filter in the back of the instrument a...

Страница 7: ...the variety of sample types and drying applications To facilitate the addition of a sample a side port is provided having a sealing screw cap In addition to an inlet temperature probe which is part o...

Страница 8: ...instrument TUB ASSEMBLIES AND FILTERS LARGE TUB ASSEMBLIES 2 LITRE STAINLESS STEEL TUB BASE 2 LITRE GLASS TUB BASE 5 LITRE STAINLESS STEEL TUB BASE 5 LITRE GLASS TUB BASE USE LARGE FILTER BAGS AVAILA...

Страница 9: ...ifier and a Sieve Dryer The mini tubs are 250ml in capacity and can be used effectively on samples weighing from 5 to 50 grams per tub Four tubs can be dried simultaneously The decision to go to seale...

Страница 10: ...ss of surges in power supply or effects of a heater being switched on and off This achieves a more controlled fluidisation and allows us to monitor the volume of air per time used in the drying proces...

Страница 11: ...sed at elevated temperatures The use of microprocessors in the instrument allows us to control the temperature during heating and cooling the sample to within a few degrees Note Good temperature contr...

Страница 12: ...lash point should not be used with this dryer Because of the high heat and mass transfer rates obtainable drying times for the Fluid Bed Dryer are much less than for the more traditional methods avail...

Страница 13: ...appearance of boiling liquid due to the formation ofmany small bubbles at the surface of the sample the so called bubbling fluidisation Ideal fluidisation is achieved only with spherical particles of...

Страница 14: ...efficient contact between gas and solid particles due to the turbulence of the bed results in high heat transfer rates causing rapid evaporation mass transfer of moisture which is carried away with t...

Страница 15: ...d drying is directly applicable to industrial fluid bed dryers since the same principles apply Characterising a product in the laboratory provides useful information for continuous and batch scale dry...

Страница 16: ...g homogenising samples separating particles based on density coating samples etc A most important application of fluid bed drying is determining a drying curve for a sample A drying curve i e a plot o...

Страница 17: ...tialises Following this the Version number of the Software held within the instrument is displayed momentarily U103 at time of going to press The instrument starts up in standby mode displaying the la...

Страница 18: ...hen the instrument is turned on this simply indicates these functions were not used on the last occasion when the instrument was operated They can be turned on by a short press of their icon buttons T...

Страница 19: ...the temperature control off see p19 last para Section 3 Setting the blower The blower function always turns on when the power is supplied to the instrument and the flashing green light above the blowe...

Страница 20: ...switch stops the dryer operation and displays the last set values Pressing the start again refreshes the timer which begins counting down from the original set time When the dryer reaches the end of...

Страница 21: ...n the standby mode This I indicated by the little light indicating PV near the upper left corner of the display The PV indicator light flashes from green off tored on indicating the status of the heat...

Страница 22: ...n of the probe Note Connectors on the back of the instrument are shipped with plastic covers to prevent contamination These covers should be used whenever a connection is not being used particularly w...

Страница 23: ...e SS Filter and bracket 2 Place four wavy washers on the four studs followed by the four spacers provided with the PFD The spacers are 3 5cm in length The spacers should be made finger tight plus an a...

Страница 24: ...tion with the Pulse Flow Device cont The PSD can be made to function by simply pressing the on off switch on the device downward The pulsing of the valve occurs in cycles of approximately 2 5 seconds...

Страница 25: ...ment if there is no PFD being used The screws holding the bracket should be loosened and the filter slid off the instrument The filter can be washed in warm soapy water or put into a dish washer It sh...

Страница 26: ...The compression technique forms a more rigid structure and results in a better seal Replacement of Outlet Filter on the Instrument The mains power should be disconnected prior to following the procedu...

Страница 27: ...hat the operator can now alter the setting of that function In standby mode the power button light is on and displayed in a yellow colour If the instrument is turned on by pressing the ON switch on th...

Страница 28: ...configurations being used and the position of the fuses are different on each Both configurations Type A and Type B are shown below Fuse Type Colour Purpose 230V 110V A blue general 15A 25A B green b...

Страница 29: ...Specification Model Fluid Bed Dryer Digital Voltage 110v or 230v Frequency 50Hz or 60Hz Phase 1 Power Consumption 3 2kW Class E 1 earthed Dimensions 260 x 340 x 495 mm H x W x D Weight 19 kg 27...

Страница 30: ...ry 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 will invalidat...

Страница 31: ...________________________________________________________________________________________ Endecotts Limited Lombard Road London SW19 3TZ England Tel 44 0 20 8542 8121 Fax 44 0 20 8543 6629 E mail sales...

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