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SDF 250/400/500

Functional description 6-15

6.

Functional description

This functional description is addressed to the operators of the
equipment.

This functional description assumes general familiarity with
drying equipment.

It should be verified that the operators do indeed have the
appropriate skills.

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Содержание SDF 250

Страница 1: ...Sterling Material Processing Operating Instructions Dehumidified air dryer SDF 250 SDF 400 SDF 500 With Touch control unit...

Страница 2: ...14 354 0970 Fax 414 354 6421 www sterlco com Technical service Service department Telephone 800 423 3183 Edition 12 03 These operating instructions are for please fill in personally Serial number Year...

Страница 3: ...tructions at any time without notice We assume no liability for any errors or direct or indirect damage resulting in context with these operating instructions Copying translation or publication in any...

Страница 4: ...me 3 11 3 3 6 Changing language 3 12 3 4 Continuous operation 3 14 3 4 1 Continuous Operation of the Hopper 3 14 Continuous Operation of the Dryer 3 14 3 5 Switching the dryer hopper heater off 3 16 4...

Страница 5: ...ly and Storage 7 1 7 1 Tansport and Packing 7 2 7 2 Assembly 7 4 7 3 Storage 7 4 8 Assembly instructions 8 1 8 1 Installation of the exhauster fan for regeneration of exhaust air 8 2 8 2 Connection of...

Страница 6: ...0 500 General Information 1 1 1 General Information These operating instructions are addressed to all users of the device These operating instructions must be used by every person charged with work on...

Страница 7: ...e not observed L This symbol indicates that serious injury is possible if the corresponding instructions regulations or warnings are not observed F This symbol indicates that extensive damage to equip...

Страница 8: ...pes on the equipment should be depressurised before starting maintenance work Caution Danger of hot surface Before starting any work wait until all parts have been cooled down sufficiently Avoid touch...

Страница 9: ...duction sequences or methods The operating instructions must be compiled by the operator of the equipment Equipment foreman When several operating personnel work on one machine the equipment foreman c...

Страница 10: ...e of action of the equipment of the direct and indirect hazards connected with the equipment These operating instructions are to be used by all persons assigned activities connected with the equipment...

Страница 11: ...s injury and damage to equipment All work on the equipment is to be carried out by persons whose qualifications are specified in the pertaining chapters of the operating instructions Improper operatio...

Страница 12: ...peration of the equipment Improper operation results in danger of accidents When the main switch is switched off for reasons pertaining to safety it must be secured against unauthorized activation Cau...

Страница 13: ...This avoids injury and damage to equipment Any maintenance work on the equipment should only be started when the the main switch is off and the blower has stopped This avoids injury and damage to equi...

Страница 14: ...rial manufacturer Take care that the drying hoppers are always completely filled and that the retention period is respected if continual removal is taking place Note that too large amounts taken from...

Страница 15: ...evant skills F Note down all set values of the control system Make sure that the cooling appliance is connected to the mains socket in the electrical cabinet if present optional Make sure that any con...

Страница 16: ...ues entered are stored in the control system and remain so even after the unit is switched off or in the event of a power cut All messages are displayed in plain text 3 1 1 Touch Screen The operating...

Страница 17: ...400 500 Start up 3 3 3 2 Switching on the Dryer Switch on the system by means of the main switch The control system carries through a self test after that the Start Screen with date and time is displa...

Страница 18: ...00 Start up 3 4 Basic parameters 3 3 1 Entering Dryer Values Return air cooler on orr I enabling the return air cooler O disabling the return air cooler Target value Actual value Status Dryer Back to...

Страница 19: ...ed dew point temperature 35 to 28 C 31 to 18 4 F Dew point Act The current dew point temperature will be displayed Return air cooler Target Enter the max permissible air temperature Acknowledge with t...

Страница 20: ...250 400 500 Start up 3 6 3 3 2 Entering hopper values Return air cooler on orr I enabling the return air cooler O disabling the return air cooler Enter hopper name Status Hopper Back to Start Screen S...

Страница 21: ...material temperature calculated by the control system for closing the flap on the drying hopper is displayed Drying time Target Enter the dwelling time of the material within the drying hopper in min...

Страница 22: ...SDF 250 400 500 Start up 3 8 3 3 3 Setting the timer...

Страница 23: ...e and the switching off time in hours and minutes Off Internal External Select operation mode internal operation with internal timer external operation with external timer if present off operation wit...

Страница 24: ...hopper temperature displayed in C Status dryer LED grey dryer off LED green dryer on Target hopper temperature displayed in C Actual dew point temperature optional Work load frequency blower optional...

Страница 25: ...SDF 250 400 500 Start up 3 11 3 3 5 Setting date and time Date Time Enter the desired day and time...

Страница 26: ...SDF 250 400 500 Start up 3 12 3 3 6 Changing language This function is password protected Enter the password password 792154...

Страница 27: ...SDF 250 400 500 Start up 3 13 If the password has been entered correctly the language can be changed...

Страница 28: ...rying temperatures are suited for the materials in the hoppers After first filling do not process the material until after the dwelling time If a return air cooler optional is installed switch on the...

Страница 29: ...SDF 250 400 500 Start up 3 15 Or...

Страница 30: ...off Switch off the hopper heater Switch off the dryer L Wait until the regeneration phase is finished and the blower has come to a standstill Switch off the dryer at the main switch Disconnect the po...

Страница 31: ...l units This chapter assumes that the start up description has been read and understood It should be ensured in each and every case that the operators have the relevant skills An alarm is indicated by...

Страница 32: ...an only be erased by pressing the ACK key The failure is not repaired If the alarm message is acknowledged by pressing of the ACK key but the failure is not yet eliminated the flashing changes to stea...

Страница 33: ...he Safety Switch Drying Blower Has Been Actuated Check the blower Check the fuses Short circuit check of the blower Vacuum Drying Blower The drying blower does not produce sufficient pressure Check th...

Страница 34: ...e Temperature Measurement Outgoing Air Defective Check cables and sensor Temperature Measurement Return Air Defective Check cables and sensor Excess Temperature Return Air Check cables and sensor Chec...

Страница 35: ...ive Hopper X X number of the drying hopper Check cables and sensor Check the power supply Short circuit check Excess Temperature Granules Hopper X X number of the drying hopper The material temperatur...

Страница 36: ...ck the safety temperature limiter STB Check regeneration heater Short circuit check Overload Drying Heater STB has been activated Check the safety temperature limiter STB Check drying heater Short cir...

Страница 37: ...SDF 250 400 500 Error and error correction 4 7 4 2 Alarm protocol Alarm messages are displayed in plain language with date and time in the alarm protocol...

Страница 38: ...Use only suitable lifting gear which is in proper working order and load suspension devices with sufficient carrying capacity Do not stand or work under suspended loads Ensure that the electric motor...

Страница 39: ...nance work clean the equipment of oil fuel or lubricant Ensure that materials and incidentals required for operation as well as spare parts are disposed of properly and in an environmentally sound man...

Страница 40: ...amount of dust collected Every six months Change return air filters depending on dust build up Clean air filter of the suction box All electrical and mechanical connections should be checked to see if...

Страница 41: ...not be switched on unintentionally If there is a return air cooler installed switch off its coolant circuit Switch off the drying hopper Clogged filters substantially reduce the amount of circulating...

Страница 42: ...he filter cartridge Clean the inside of the return air filter housing Use non fibrous cleaning cloths or an industrial type vacuum cleaner Blow compressed air from the inside out through the clogged f...

Страница 43: ...en the back panel Slide the air filter A off the nozzle Blow compressed air through the clogged air filter from the inside out or replace the air filter Install the cleaned new air filter A Mount the...

Страница 44: ...he filter mat Blow through the filter mat with compressed air from inside to outside or renew the filter mat Clean the filter housing Use lint free cleaning rags Re install the cleaned new filter mat...

Страница 45: ...efilled by Sterling only if they are empty When disposing of drying agents observe all official rules Since used drying agents may contain impurities from the dried materials treat them as special was...

Страница 46: ...main switch of the dryer Interrupt the mains supply so that the device cannot be switched on unintentionally If there is a return air cooler installed switch off its coolant circuit F Clean the dryin...

Страница 47: ...opper lid and fold the hopper lid upwards if in use remove before the single conveyor Clean the drying hopper Close the hopper lid and close the toggle type fasteners A if in use re mount the single c...

Страница 48: ...emove before the single conveyor STT 400 STT 1600 2 handles Clean the drying hopper Close the cleaning opening of the drying hopper Turn the handle A until the cleaning opening is locked and then clos...

Страница 49: ...pen the control box by means of the control box key which is part of the supply Open the front door of the CPU Pull the backup battery with cable out of the compartment Plug the connector of the new b...

Страница 50: ...l place Backup batteries can be stored for approx 5 years If backup batteries are not treated properly they can ignite explode and cause severe burning Order number battery ID 83809 Batteries must be...

Страница 51: ...ntrol box with the switch box key which is part of the supply Turn the key to the STOP position Turn the key to the MRES position Hold the key in this position until the STOP LED comes on for the seco...

Страница 52: ...tional description This functional description is addressed to the operators of the equipment This functional description assumes general familiarity with drying equipment It should be verified that t...

Страница 53: ...ram run regeneration is not interrupted but continues until the program end has been reached This guarantees that one regenerated drying cell is always available The air inside the switch cabinet is c...

Страница 54: ...must also be a continual addition of material into the drying hopper continuous drying process New moist material is conducted into the upper opening of the drying hopper and slowly reaches the materi...

Страница 55: ...Sterling pneumatic conveyor Suction boxes with one or three suction tubes can be supplied as well optional These suction boxes are developped specifically for this type of hopper The loading of the co...

Страница 56: ...n the regulations for the prevention of accidents the operating conditions and safety regulations and their implementation Ensure in each case that the operating personnel are sufficiently informed Pl...

Страница 57: ...are sealed with plugs so that no dirt can enter during transport Plugs must be removed before assembly Packing materials should be disposed of according to environmental laws or reused The dryer or th...

Страница 58: ...yelets are installed on the dryer housing If this condition is met fasten the transport cables to the eyelets If this condition is not met mount the eyelets and then fasten the transport cables to the...

Страница 59: ...facility compact facility Special foundations are not necessary for installation The dryer must be installed on a level surface and must not be exposed to excessive humidity The maximum permissible a...

Страница 60: ...l connected equipment Observe safety regulations with regard to lifting gear handling All installation work must be carried out with the equipment disconnected from electrical power and compressed air...

Страница 61: ...is very humid Thus condensation may form which must not under any circumstances return to the dryer 8 2 Connection of Return Air Cooler Optional F A return air cooler must be employed if the return a...

Страница 62: ...Sterling service staff or by qualified staff authorized by Sterling Other persons are not permitted to carry through the electrical connection The main switch must be freely accessible Ground the equi...

Страница 63: ...e requirements The operating pressure is 5 6 bar system overpressure Check the compressed air in the factory ductwork system Set the air pressure at 5 6 bar system overpressure Open the panel by means...

Страница 64: ...s of heat during part load operation Significant energy savings Automatic air distribution through air distribution valves with fuzzy logic control Prevents the material from being exposed to un nec e...

Страница 65: ...SDF 250 400 500 Technical data 9 2 Dimension Sheet Dimensions and data without obligation Dimensions in mm Specifications may be subject to alterations...

Страница 66: ...list Drying Hoppers STT 25 STT 6400 o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ o _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...

Страница 67: ...Sterling Material Processing Accessories Spare parts list Drying Hoppers STT 25 STT 6400...

Страница 68: ...14 354 0970 Fax 414 354 6421 www sterlco com Technical service Service department Telephone 800 423 3183 Edition 07 03 These operating instructions are for please fill in personally Serial number Year...

Страница 69: ...tructions at any time without notice We assume no liability for any errors or direct or indirect damage resulting in context with these operating instructions Copying translation or publication in any...

Страница 70: ...STT 25 STT 6400 4...

Страница 71: ...ing optional if flap in use 3 07418 Flow indicator 150 96099 Tension ring 94231 Sealing ring optional if flap in use 4 16517 Motor flap 80 92241 Tension ring 28923 Cable set 4 16522 Motor flap 150 960...

Страница 72: ...in use 18 30350 Grounding set Multiplier PT 100 ID Description 86371 Pt 100 3 m 89846 Pt 100 6 m 93303 PT 100 9 m 86387 PT 100 12 m 83015 PT 100 15 m Drying Hoppers complete Description ID number STT...

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