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45

2.  Min Pot Adjustment

Set the SCR Speed Control knob on the ASC panel at
the 10% setting. Adjust the Min pot to obtain 18V DC
across the DC motor armature terminals A1 and A2.

3.  Recheck Max pot setting (step 1) and readjust if nec-

essary. Repeat step 2 and readjust Min pot if neces-
sary.  Rechecking the Max and Min pot settings one
time should be sufficient.

Fig. 7-4  Woods SCR motor control board and settings.

scrcontrol.tif

Содержание C-21100B

Страница 1: ... RA AT TO OR R S S M MA AN NU UA AL L C 2130B C 2140B C 2160B C 2175B and C 21 100B GRAIN DRYERS Division of ffi Corporation 5900 Elmwood Ave Indianapolis IN 46203 1999 1997 ffi Corporation Printed in USA 1999 LATER MODELS ...

Страница 2: ...ns a division of ffi Corporation All rights reserved No part of this publication may be used or reproduced in any form or by any means without prior permission Failure to comply with this notice is a violation of United States copyright laws Take special note of the Operating Precautions and warning listed on Page 2 before attempting to operate the dryer Keep the dryer clean Do not allow fine mate...

Страница 3: ...rive Data 6 SCR Drive Information 6 Blower Drive Data 6 Section 2 TRANSPORTATION INSTALL 7 Transporting Dryer 7 Installation 7 Fuel Connection 7 Fuel Specs 9 Electrical Power Supply 9 Electrical Load Overload Relays and Circuit Breaker Tables 10 Section 3 OPERATING CONTROLS 11 Primary Components 11 Power Disconnect 11 Control Start Stop 11 Fan Start Stop 11 Burner Off On 11 Main Safety Gas Shutoff...

Страница 4: ...dryer at all times 4 Never attempt to operate the dryer by jumping or otherwise bypassing any safety devices on the unit 5 Always set the main power supply disconnect switch to OFF and lock it in the OFF position using a padlock before performing any service or maintenance work on the dryer or the auxil iary conveyor equipment 6 Before attempting to remove and reinstall the propeller make certain ...

Страница 5: ...at drying using a single plenum chamber with full grain column exposure as required for maximum dry ing capacity Field Conversion Converter pack ages are available to permit conversion from Full Heat to Dry Cool pressure or vacuum cooling GRAIN COLUMNS Two 14 galva nized steel grain columns Solid column dividers every two feet Grain move ment through columns is controlled by advanced electronic va...

Страница 6: ...dule with two zones 34 ft 14 in 1010 bu 229 bu 521 bu 260 bu 43 2 8 0 12 10 12 6 8 0 8 10 34 12 6 48 9 11 0 11 0 17 2 1 DIDW 60 HP 12 M Btu Hr 8 10 HP 2800 BPH 8 10 HP 2315 BPH 1 3 HP SCR 205A 230V 103A 460V 1010 BPH 585 BPH C 2175B One module with two zones 34 ft 14 in 1010 bu 229 bu 521 bu 260 bu 43 2 8 0 12 10 12 6 8 0 8 10 34 12 6 48 9 11 0 11 0 17 2 1 DIDW 75 HP 12 M Btu Hr 8 10 HP 2800 BPH 8...

Страница 7: ...ons Top Auger Capacity Bottom Auger 2 Capacity Meter Roll Drive Electrical Load Dryer Only 3 PH 3 Drying Capacity Shelled Corn 4 Dry Cool 20 15 Dry Cool 25 15 Full Heat 20 15 5 Full Heat 25 15 5 C 2130B1 One module with two zones 20 ft 14 in 595 bu 135 bu 307 bu 153 bu 29 2 8 0 12 10 11 1 8 0 8 10 20 11 1 33 3 11 0 8 0 17 2 1 DIDW 30 HP 7 M Btu Hr 8 7 5 HP 2800 BPH 8 5 HP 1360 BPH 1 3 HP SCR 117A ...

Страница 8: ... T A B L E 1 3 A U G E R D R I V E D A T A T A B L E 1 4 S C R D R I V E I N F O R M A T I O N 10 136 177 230 232 259 15 204 266 347 347 388 20 272 354 463 463 517 25 340 443 579 579 646 30 408 531 695 695 776 35 476 620 810 810 905 40 544 708 926 926 1034 45 612 797 1042 1042 1163 50 680 885 1158 1158 1293 55 748 974 1273 1273 1422 60 816 1062 1389 1389 1551 65 884 1151 1505 1505 1680 70 952 1239...

Страница 9: ...ggested foundation size The dryer is supplied with a standard leg set to support the dryer body at 24 high Optional 36 and 48 high leg sets are available The dryer must be anchored to the foundation with tie down cables or by placing anchor bolts through the leg supports into the founda tion See C 2100B FIELD ASSEMBLY INSTRUC TIONS Bulletin C21BIN 01 2 for leg installation details Before proceedin...

Страница 10: ... DO NOT USE A PRESSURE REGULATOR AT THE SUPPLY TANK OPEN LP SHUT OFF VALVES SLOWLY TO PREVENT ACCIDENTAL CLOSING OF EXCESS FLOW VALVES PROPANE SUPPLY TANK RECOMMENDED MINIMUM OF 1 000 GALLONS CONNECTED FOR LIQUID DRAW LP CONNECTION 21SENS DS4 PSC ASC C 2100B C 2100B SEE TABLE 2 1 FOR RECOMMENDED LINE SIZE NATURAL GAS METER AND REGULATOR SEE TABLE 2 1 FOR REQUIRED PRESSURE AND TYPICAL MAXIMUM FUEL ...

Страница 11: ...ols are not sup plied as a standard part of the dryer control panel A signal contact is provided to control a separate auxil iary load conveyor motor starter dedicated to this func tion A All auxiliary equipment must be powered from a source outside the dryer Each auxiliary motor must have a separate contactor and overload protection device B For automatic operation use 110V contactor coils and co...

Страница 12: ... 6 Size 1 3 HP DC Control Amps Volts 2 2A 230VAC Motor Amps Volts 1 6A 180VDC T A B L E 2 2 E L E C T R I C A L L O A D O V E R L O A D R E L A Y S a n d C I R C U I T B R E A K E R S 20 10 40 25 C 2 1 3 0 B 155 78 100 50 300 150 20 10 50 25 Horsepower Full Load Current amps Max Running Load dryer only amps Overload Setting Circuit Breaker Rating amps Voltage 3 PH 230V 3 PH 460V 3 PH 230V 3 PH 460...

Страница 13: ...BURNER ENABLED light will remain ON as long as a fire is sensed If the flame is lost the red Burner Lockout Light will come on and the FLAME SAFEGUARD con trol must be manually reset to reignite burner MAIN SAFETY GAS SHUTOFF VALVE VALVE OPERATION This is an electrically energized manual reset type valve The valve is equipped with an electric solenoid which is energized only when the dryer Burner ...

Страница 14: ...oint range is 0 250 F C Push RESET to return to plenum temp display A set point should not be in the display If display is inactive for 60 seconds it automatically returns to a plenum temp display The PLENUM TEMP Controller will automatically begin opening the gas control valve when a flame is proven and will modulate the control valve to hold the Plenum set point entered METER ROLL CONTROLS UNLOA...

Страница 15: ... arrive at the correct meter roll speed Also impor tant DO NOT CHANGE THE MANUAL UNLOAD RATE WHILE IN THE AUTO MODE 5 The Moisture Control unit will begin automatically con trolling the meter roll speed to compensate for changes in the grain input moisture by maintaining the set point temperature entered 6 If large changes in grain input moisture are encoun tered repeat the setup procedure to esta...

Страница 16: ...des of the fan heater module can be adjusted to balance the amount of cooling air required Opening the louvers wider will reduce the amount of vacuum cooling and increase the drying airflow rate Closing the louvers will increase the cooling airflow rate while reducing the amount of air to the drying zone In general the louvers should be adjusted to create 2 to 2 inches of water column wc vacuum in...

Страница 17: ... situ ation the reclaimer damper should be FULLY CLOSED and the fresh air louvers readjusted to give the desired grain cooling required C 2100B1 SERIES FULL HEAT DRYERS FRESH AIR LOUVERS The fresh air louvers on the C 2100B1 series dryers should be fully opened during drying operation On C 2100B1 series dryers equipped with HR 2100B1 series Heat Reclaimer the louvers should be approxi mately 66 op...

Страница 18: ...side approximately the same REAR OUTER FLOOR PANEL The rear outer floor panel should be removed from C 2100B1 series dryers only when the HR 2100B1 series reclaimer is used to allow air to flow from the lower reclaimer to the fan inlet enclosure HINGED RECLAIMER SIDE PANELS HR 2100B1 HEAT RECLAIMER OPTION The hinged reclaimer side panels allow easy access to the lower part of the dryer for cleanin...

Страница 19: ...button The green light on the Control Start button should immediately light indi cating the safety circuit and control circuit are ener gized to allow dryer operation 7 Check conveyor motors rotation A With the wet grain supply shut off quickly bump jog the Load Auger Switch to the ON position The top auger should rotate clockwise as viewed from the drive end Any wet grain auxiliary supply conveyo...

Страница 20: ...Adjust the linkage rod length on the butterfly valve to obtain a 1 2 to 1 PSI burner pressure and observe the fire through the hole in the center of the rear access door The fire should appear evenly spread within the burner baffles H Check High Fire Increase the plenum temperature controller to 150 F The controller should stabilize on the set point after a short time While the temperature is clim...

Страница 21: ...ition 50 55 from horizon tal Slowly rotate the box clockwise and the dryer should restart at 15 20 before horizontal Readjust fill switch if required See Fig 4 1 for switch position dia gram Position the Load Auger Switch to AUTO The Load Timer should begin counting down and the dryer should shut down after five minutes of loading The LOW GRAIN indicator light should be energized on the control pa...

Страница 22: ...20 ...

Страница 23: ...isture content until the dryer has been operated for at least the time required to make one grain pass Time min for one grain pass is as follows For dry cool Grain pass Drying Time x 1 For full heat Grain pass Drying Time where Drying Time is found in the Drying Tables Make provisions in your drying system to recirculate the first part of the initial batch back to the wet grain stor age bin 9 Obse...

Страница 24: ...ulation of combustible materials Begin by checking two times per day If no signif icant accumulations are found extend the inspection period to once a day Clean any accumulations from the plenum walls and floor as required Be sure that plenum cleanout doors are firmly snapped closed before operating dryer An open cleanout door when vacu um cooling will accelerate the deposit of combustible materia...

Страница 25: ...te Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 18 17 83 25 1125 95 21 1286 19 17 67 30 915 77 26 1046 87 23 1177 20 17 57 35 779 65 31 891 74 28 1002 21 17 50 41 680 57 36 777 64 32 874 22 17 44 46 601 50 40 687 57 36 772 23 17 39 52 534 45 45 611 51 40 687 24 17 35 58 477 40 51 545 45 45 613 25 17 31 65 426 36 57 487 40 50 548 26 17 28 72 381 32 63 436 36 56 490 27 17 25 81 342 29 71 390 32 ...

Страница 26: ... Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 15 13 48 28 647 54 25 740 61 22 832 16 13 36 38 488 41 33 558 46 29 627 17 13 29 46 398 33 40 455 38 36 511 18 13 25 54 338 28 48 386 32 42 434 19 13 22 63 294 25 55 336 28 49 378 20 13 19 71 259 22 62 296 24 55 333 21 13 17 80 230 19 70 263 22 62 295 23 13 13 100 183 15 88 209 17 78 ...

Страница 27: ...187 12 112 214 14 99 241 32 15 10 140 171 11 122 196 12 109 220 33 15 9 152 157 10 133 180 11 118 202 34 15 8 165 145 9 144 166 11 128 187 35 15 8 177 135 9 155 154 10 138 174 CORN full heat 190 F 210 F 230 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 18 17 83 25 1463 94 21 1672 19 17 67 30 1190 77 26 1360 86 23 1530 20 ...

Страница 28: ... F 130 F 140 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 15 13 48 28 841 54 25 962 61 22 1082 16 13 36 38 634 41 33 725 46 29 815 17 13 29 46 517 33 40 591 38 36 665 18 13 25 54 439 28 48 502 32 42 565 19 13 22 63 382 25 55 436 28 49 491 20 13 19 71 336 22 62 385 24 55 433 21 13 17 80 299 19 70 341 22 62 384 23 13 13 10...

Страница 29: ...44 12 112 279 14 99 314 32 15 10 140 223 11 122 255 12 109 287 33 15 9 152 205 10 133 235 11 118 264 34 15 8 165 190 9 144 217 11 128 244 35 15 8 177 177 9 155 202 10 138 227 CORN full heat 190 F 210 F 230 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 18 17 83 25 1910 94 21 2183 19 17 67 30 1554 77 26 1776 86 23 1998 20 1...

Страница 30: ...F 130 F 140 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 15 13 47 28 1099 54 25 1256 61 22 1413 16 13 36 38 828 41 33 947 46 29 1065 17 13 29 46 675 33 40 772 38 36 868 18 13 25 54 574 28 48 656 32 42 738 19 13 22 63 499 25 55 570 28 49 641 20 13 19 71 439 22 62 502 24 55 565 21 13 17 80 390 19 70 446 22 62 502 23 13 13 ...

Страница 31: ...259 13 106 295 14 94 332 32 15 10 132 236 12 116 270 13 103 304 33 15 9 144 217 11 126 248 12 112 279 34 15 9 156 201 10 136 230 11 121 258 35 15 8 167 187 9 146 213 10 130 240 CORN full heat 190 F 210 F 230 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 18 17 86 23 1998 99 21 2284 19 17 70 29 1626 80 25 1858 90 22 2090 20...

Страница 32: ...F 130 F 140 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 15 13 47 28 1099 54 25 1256 61 22 1413 16 13 36 38 828 41 33 947 46 29 1065 17 13 29 46 675 33 40 772 38 36 868 18 13 25 54 574 28 48 656 32 42 738 19 13 22 63 499 25 55 570 28 49 641 20 13 19 71 439 22 62 502 24 55 565 21 13 17 80 390 19 70 446 22 62 502 23 13 13 ...

Страница 33: ...3 13 104 335 15 93 377 32 15 10 130 268 12 114 306 13 101 345 33 15 10 142 246 11 124 282 12 110 317 34 15 9 153 228 10 134 260 11 119 293 35 15 8 165 212 9 144 242 11 128 272 CORN full heat 190 F 210 F 230 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 18 17 88 23 2269 100 20 2593 19 17 71 28 1846 82 25 2110 92 22 2374 20...

Страница 34: ... 130 F 140 F Unload Dry Capacity Unload Dry Capacity Unload Dry Capacity in out Rate Time Dry Bph Rate Time Dry Bph Rate Time Dry Bph 15 13 48 28 1228 54 25 1404 61 22 1579 16 13 36 38 926 41 33 1058 46 29 1190 17 13 29 46 755 33 40 863 38 36 970 18 13 25 54 641 28 48 733 32 42 824 19 13 22 63 558 25 55 637 28 49 717 20 13 19 71 491 22 62 561 24 55 632 21 13 17 80 436 19 70 498 22 62 561 23 13 13 ...

Страница 35: ... LEVER VALVE MAIN SAFETY SHUTOFF VALVE BURNER MODULATOR ASSEMBLY PRESSURE GAGE WATER TRAP BUTTERFLY VALVE FUEL INLET PRESSURE GAGE TO BURNER 2ND MAIN SAFETY SHUTOFF VALVE NAT GAS ONLY Fig 6 1 C 2100B overview Fig 6 2 Fuel manifold assembly ...

Страница 36: ...34 Fig 6 3 LP vaporizer assembly Fig 6 4 ASC control panel ...

Страница 37: ... ROLL MONITOR CONDUIT CONNECTS TO BURNER JUNCTION BOX RH SIDE LH SIDE AS SEEN UNCOUPLED TO FAN HEATER MODULE LH GRAIN HI LIMIT SENSOR PLENUM HI LIMIT SENSOR FAN PRESSURE SWITCH TUBE INSIDE SAME CONDUIT BURNER PROFILE PLATE C 2160 75 100B BURNER PROFILE PLATE C 2130 40B Fig 6 5 ASC control panel internal view Fig 6 6 Sensor diagram ...

Страница 38: ...SWITCH ASSY IGNITION TRANSFORMER IGNITION WIRE FLAME SENSOR WIRE TERM 35 GROUND WIRE GREEN PLENUM HI LIMIT SENSOR TERM 15 8A 300 DEG F RTD PLENUM SENSOR TERM 85 86 RTD GRAIN SENSOR TERM 75 76 TERMINAL BLOCK FAN PRESSURE SWITCH TUBE GROUND Fig 6 8 Burner junction box Fig 6 7 PSC panel ...

Страница 39: ...several hours of operation during initial start up Check periodically thereafter Meter roll crossover chain Adjust to provide 1 4 inch total deflection Drive chain Adjust to provide 1 2 inch total deflection To avoid missalign ing speed jack bearings loosen drive belts before adjusting chain ten sion Note Auger and meter rolls have sealed bearings that do not require lubrication Chain tightener pl...

Страница 40: ... 6 11 SCR meter roll drive SCR drive motor Gearbox drive cover Motor mount adjustment bolt Gearbox Motor mounting bolts Retighten securely after adjusting belt Drive belt Retension belt drive after first few hours of operation Check periodically thereafter ...

Страница 41: ...ith a gear box that is initially filled with synthetic oil See Section 7 Service for relube recommendations 40 drive chain Adjust to provide 1 4 to 1 2 inch total deflection Oil level plug hidden Maintain to bottom of plug opening near shaft level Emergency dump door Chain tension adjusting bolt Normal direction of rotation Motor mount bolts Retighten securely after adjusting chain Actuator arms ...

Страница 42: ... grain regulators and meter rolls Important Keep inside of dryer clean Do not allow chaff and other cobustible material to accumulate within air plenum cham ber Make certain to turn off and lock out the main power before entering dryer Fig 6 16 Meter roll access with door and regulators removed Grain regulator support 7 Meter rolls ...

Страница 43: ...lso be formed if the dryer is allowed to set partially full For example if the left over grain were to get rained or snowed on TO DUMP THE METER ROLL PAN 1 Pull the hitch pin that locks the pan in the operating position as shown in the diagram 2 Shove up on the actuator arm as shown The pan may resist movement at first and the operator may need to pound up on the arm at first to break the pan loos...

Страница 44: ...h grease fittings to allow the fan motor bearing to be relubricated without disassembly Lubricate the fan motor bearings once each year at the beginning of the drying season by applying 1 2 fl oz approximately 8 strokes from std hand gun to the front and rear bearing using SHELL DOLIUM R or CHEVRON SRI 2 motor grease DO NOT OVERLUBRICATE To keep motor bearings properly lubricated and dispel any ac...

Страница 45: ...temperatures may be caused by fuel vaporizing before reaching the vaporizer Check for A Improper fuel hookup Should be drawing liquid from tank B Frosted lines fittings or valves Frost indicates a restriction or pressure drop in piping causing vaporiza tion RE ZEROING THE VACUUM GAUGE The pressure gauge was zeroed at the Farm Fans fac tory prior to shipment When the dryer is shut down the gauge sh...

Страница 46: ...perate lower burner for several minutes with a couple of the meter roll access doors left open to thaw grain then reattempt to operate meter rolls TO LOCATE THE JAM To determine which meter roll is jammed whether drive side or driven side feel the tension in the top and bottom sections of the meter roll crossover chain see Fig 6 10 If tension is equal in both sections the drive side meter roll is ...

Страница 47: ...to obtain 18V DC across the DC motor armature terminals A1 and A2 3 Recheck Max pot setting step 1 and readjust if nec essary Repeat step 2 and readjust Min pot if neces sary Rechecking the Max and Min pot settings one time should be sufficient Fig 7 4 Woods SCR motor control board and settings scrcontrol tif ...

Страница 48: ...220V part wind start for C 2175B C 21100 models 48 Fig 8 3 Power circuit 440V 3 phase for all C 2100B models 49 Fig 8 4 Control circuit all models except part wind start versions 50 52 Fig 8 5 Control circuit part wind start models only 53 55 Fig 8 6 Safety circuit portion of control circuit all models 56 ...

Страница 49: ...Fig 8 1 Power circuit 220V 3 PH for C 2130B C 2140B C 2160B only 47 4B0280A TIF ...

Страница 50: ...48 Fig 8 2 Power cirucit 220V Part wind start for C 2175B C 21100 models only 4B0280C TIF ...

Страница 51: ...49 Fig 8 3 Power circuit 440V 3 PH for all C 2100B models 4B0280B TIF ...

Страница 52: ...Fig 8 4 Control circuit all models except part wind start p 1 of 3 50 4B0280D TIF ...

Страница 53: ...Fig 8 4 Control circuit all models except part wind start p 2 of 3 51 4B0280E TIF ...

Страница 54: ... circuit all models except part wind start p 3 of 3 52 NOTES 1 NO FIELD CONNECTIONS 63 64 ARE USED IN NEW METER ROLL SYSTEM 2 REMOVE SHIPPING JUMPER AND INSTALL AUXILIARY CONTACTS FROM TAKE AWAY EQUIPMENT 4B0280F TIF ...

Страница 55: ...Fig 8 5 Control circuit part wind start models only p 1 of 3 53 4B0280H TIF ...

Страница 56: ...Fig 8 5 Control circuit part wind start models only p 2 of 3 54 4B0280I TIF ...

Страница 57: ...rol circuit part wind start models only p 3 of 3 55 NOTES 1 NO FIELD CONNECTIONS 63 64 ARE USED IN NEW METER ROLL SYSTEM 2 REMOVE SHIPPING JUMPER AND INSTALL AUXILIARY CONTACTS FROM TAKE AWAY EQUIPMENT 4B0280J TIF ...

Страница 58: ...Fig 8 6 Safety circuit portion of control circuit all models 56 4B0280G TIF ...

Страница 59: ...ive STOP or START switch Also check switch wiring connections 5 1CR RELAY Check for a defective 1CR relay relay base or faulty wiring Control Circuit Not Energized Shutdown Indicator Light ON SHUTDOWN INDICATOR LIGHTS BURNER LOCKOUT manual reset press button on Flame Safeguard LOW GRAIN auto resets immediately METER ROLL MONITOR auto resets immediately PLENUM HI LIMIT auto resets after cooling GRA...

Страница 60: ...gnored in this situation If the Unload Auger switch is OFF the dryer control cir cuit will not be shut down due to a burner lockout The Flame Safeguard control must be manually reset before re ignition is allowed UNMONITORED SAFETY SHUTDOWN DEVICES Unload auger overload relay Load auger overload relay Fan overload relay SCR overload relay Overload relay has opened manual reset required A Amperage ...

Страница 61: ... load side of contactor 4 Burner control locked out Check for Burner Lockout light Push burner control reset button on the Flame Safeguard Control in the ASC box 5 If power was present in previous step inspect connections and check voltage applied to motor leads in motor junction box to determine if motor is defective 1 Check that UNLOAD circuit breaker is ON SCR SPEED CONTROL is properly set UNLO...

Страница 62: ...ure does not stabilize Check that valve linkage works freely Check that linkage has been adjusted properly see start up and testing section Check for proper pressure regulator adjustment See fuel specifications in Table 2 1 Reducing regulator pressure from settings listed in Fuel Specifications Charts when operating at lower than nor mal plenum temperatures with reclaiming or in warm ambient condi...

Страница 63: ...e same rate as was used in manual control when first switch to AUTO If not suspect problems with the Auto Range Module Be patient grain drying is a slow process 1 3 hours for a grain pass is not uncommon 1 Check plenum temperature Use thermometer inserted at rear of dryer plenum Plenum tempera ture should be near plenum controller set point Be aware that when drying at temperatures below those lis...

Страница 64: ... bin moisture Usually 1 3 points of moisture are removed from the hot grain when aerated This means if 15 grain moisture is ultimately required in storage the target value from the dryer should be 16 18 Do not confuse the moisture being removed during the in bin cooling process with the moisture tester temperature correction required on some commercial testers The temperature cor rected moisture r...

Страница 65: ......

Страница 66: ...2 17 00 Division of ffi Corporation 5900 Elmwood Ave Indianapolis IN 46203 1999 1997 ffi Corporation Printed in USA ...

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