oven LFO-250
Contents
1. 2 Checkelectrical requirement given on the name plate before use Name plate is located in electric cord connection 3 Connectto receptacle with ground connection 4 Besuretosupply enough electrical current 2 2 Installation CAUTION e 1 Do not use the instrument in high humid environment e May cause Electrical leakage e Water droplet may occur on the door e Corrosion may occur 2 Do not use it in high temperature environment or so not use besides instrument generating heat 3 Install oven at least 100mm apart from side wall 4 Place flat rigid and leveled surface 5 When moving oven do not up side down 6 Do not place any object on the top of oven N Warning Bn o 1 Hot surface may cause injury So always Wear protective gear 2 Do not put volatile flammable and explosive material inside the oven 3 Do not put volatile flammable and explosive material nearby oven 2 3 Operation Caution esen IRR RR t It rtt tet ttti 1 Do not spill liquid in the chamber 2 Be careful not to spill liquid on the control panel 2 4 Maintenance Caution cnc 1 Do not pout water or any liquid when you clean oven 2 Do not use hight organic solvent for cleaning the surface of oven CHAPTER 3 FEATURES Forced Convection Oven is ideal for general laboratory drying application at high temperature range from ambient 10 C to 250 C Controller Digital micropr2. N1 0 Time Scale mm ss 1 Time Scale hh mm 2 Time Scale dd hh 0 Power on restore disable 1 Power on restore 1 RNT Maximum temperature limit to set User cannot settemperature higher than this value Do not alter the value Factory default is 251 2 ADJ Temperature adjustment Sometimes the actual temperature of water is slightly different from the displayed temperature User can adjust the displayed temperature by compensating the difference by Adj value Example 1 Measure temperature of Incubator with calibrated thermometer 2 Read LED display 3 Change Adj value Controller Adj Value Temperature Reading Temperature Reading gt Jf 120 0 C 119 0 C p 121 0 C 120 0 C o CHAPTER 10 INSPECTION LOG FOR FORCED CONVECTION OVEN Model Serial a rl lf Client Date amp Time Amb TEmp Electricity MAC Ha LFO 250 Pretest check list Initial after each Checkpoint If Non Applicable enter N A Termination of each electrical connections Termination of remote alarm N A Battery termination light Surge protection termination No metal contact with refrigeration tubes No gaps in insulation Control panel key switch tight Equipped with proper accessories LFO 100 TEST AREA TEST LOG NOTE If units fails any portion of the test enter NG in the blank space adjacent to that check point Volts at plug terminal strip Hz E Unusual noise during run Fans C
3. and the replaced item becomes Labnics s property When a refund is given your product becomes Labnics s property EXCLUSIONS AND LIMITATIONS This Limited Warranty applies only to the product manufactured by or for Labnics thatcan be identified by Name Plate Labnics is not liable for any damage to or loss of any products or material stored or tested in the instruments or programs data or other information stored on any media contained within the product or any non Labnics product or part not covered by this warranty Recovery or reinstallation of programs data or other information is not covered under this Limited Warranty This warranty does not apply a to damage caused by accident abuse misuse misapplication or non Labnics products b to damage caused by service performed by anyone other than Labnics c to a product or a part that has been modified without the written permission of Labnics or d if any Labnics serial number has been removed or defaced or e ifthe unitis not used according to its purpose or f no original spare parts are used TO THE MAXIMUM EXTENT PERMITTED BY LAW THIS WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES REMEDIES AND CONDITIONS WHETHER ORAL OR WRITTEN EXPRESS OR IMPLIED LABNICS SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IF LABNICS
4. CANNOT LAWFULLY DISCLAIM OR EXCLUDE IMPLIED WARRANTIES UNDER APPLICABLE LAW THEN TO THE EXTENT POSSIBLE ANY CLAIMS UNDER SUCH IMPLIED WARRANTIES SHALL EXPIRE ON EXPIRATION OF THE WARRANTY PERIOD No Labnics reseller agent or employee is authorized to make any modification extension or addition to this warranty TO THE MAXIMUM EXTENT PERMITTED BY LAW LABNICS IS NOT RESPONSIBLE FOR DIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION OR UNDER ANY OTHER LEGAL THEORY INCLUDING ANY COSTS OF RECOVERING OR REPRODUCING ANY PRODUCT OR MATERIAL STORED OR TESTED IN THE INSTRUMENTS PROGRAM OR DATA STORED IN OR USED WITH THE LABNICS PRODUCT AND ANY FAILURE TO MAINTAIN THE CONFIDENTIALITY OF DATA STORED ON THE PRODUCT LABNICS SPECIFICALLY DOES NOT REPRESENT THAT IT WILL BE ABLE TO REPAIR ANY PRODUCT UNDER THIS WARRANTY OR MAKE A PRODUCT EXCHANGE WITHOUT RISK TOORLOSS OF MATERIAL PROGRAMS OR DATA FOR CONSUMERS WHO HAVE THE BENEFIT OF CONSUMER PROTECTION LAWS OR REGULATIONS IN THEIR COUNTRY OF PURCHASE OR IF DIFFERENT THEIR COUNTRY OF RESIDENCE THE BENEFITS CONFERRED BY THIS WARRANTY ARE IN ADDITION TO ALL RIGHTS AND REMEDIES CONVEYED BY SUCH CONSUMER PROTECTION LAWS AND REGULATIONS TO THE EXTENT THAT LIABILITY UNDER SUCH CONSUMER PROTECTION LAWS AND REGULATIONS MAY BE LIMITED LABNICS S LIABILITY IS LIMITED AT ITS SOLE OPTION TO REPLACEMENT OR REPAIR OF THE PRODUCT OR SUPPLY OF THE REP
5. AIR SERVICE AGAIN Note Before you deliver your product for warranty service itis your responsibility to remove all products or materials stored in the instrument Before returning a defective unit please contactlocal representative or Labnics SupportC enter atinfo labnics com Labnics will issue RGA number for authorized return If we agree to the unit being returned arrange for careful packing and send the e unitto LABNICS SERVICE REPORT Customer s Address Contact Person ee Tel No Fax No Weekly Off Dept Date Configuration Model Serial No Ee a KR Ed Ee Demonstration D Maintenance QI Contract p o Repairs D C T T T o o Apio D Billable L4 01 1 lt lt JAR B AO AR Nature of Problem Observation Action Taken Customer s Remarks Parts Replaced Parts Recommended Action Required Yes A No LJ Service Engineer s Name 4 Signature Requisition Number Customer s Name Signature Date Stamp Page Of D D O GJO
6. Equipment FORCED CONVENTION oven Operation and Service Manual Model LFO 250 Labnics Equipment S No 2 1 2 2 2 3 2 4 OO U A e Table of Content Content Introduction Safety Precautions Power Connection Installation Operation Maintenance Features Specifications Parts And Description Main Controller Operation Service Manual Circuit Diagram Frequently Asked Questions Trouble Shooting Guide Spare Part List Setting Parameter Parameter 1 Parameter 2 Inspection Log For Force Convection Oven Maintenance And Service Check List Certificate Of Warranty Service Report Pg No e o OU OO O N OO Ui Bb Y NN PND Pp Pp FS FES sp ul Bb W N O O Ga CHAPTER 1 INTRODUCTION Thank you for choosing Labnics Laboratory Products Please read this operation manual carefully for your safety and for the instrument having optimum operating performance If you have any query please contact our sales representative or service department CHAPTER 2 SAFETY PRECAUTIONS This manual contains important operating and safety information You must carefully read and understand the content of this manual prior to the use of this equipment Warning Warning alert you to a possibility of personal injury Caution Caution alert you to a possibility of damage to the equipment 2 1 Power Connection Caution 1 Your Oven is designed for 110 VAC 60Hz 1P or 220VAC 50 60Hz 1 P
7. ay mode SAFETY e Safety dial for over temperature cut off e Set dial 10 20 higher than operating temperature e f temperature rise over operating temperature safety automatically cut off heater output to prevent over heating POWER SWITCH e Main power switch CHAPTER 7 OPERATION E s Before Operation 1 Check electrical requirement on the name plate before connecting it to consent TEMPLO 2 Remove packing material in the chamber and install shelves De 3 Connect power plug between AC inlet consent on the left side of panel and wall mount receptacle oe M E How to SetTemperature 1 In normal display mode 2 Press MODE button 3 LED displays TEMP symbol and prompt user Input 4 Press MODE button again 5 LED displays current operating temperature 6 Enter new operating temperature by using SHIFT and INC button 7 You can enter operating temperature range from ambient 5 C to 250 C 8 Press MODE button to set timer 9 Press model button three times to skip timer Setting How to SetTimer 1 Press MODE button twice to set timer 2 LED displays TIME symbol and prompt user input 3 Press MODE button again 4 LED displays current timer setting ex 00 00 5 Input new wait off timer value by using SHIFT amp INC button 6 Default time scale is HH MM 6 For continuous operation set timer at 00 00 4 You can enter time range from 1min to 99hr 59min 5 Press MODE button to go backto n
8. igations for the products are limited to the terms set forth below Labnics warrants the product against defects in materials and workmanship for a period of one 1 year from the date of original purchase Warranty Period providing that the unit is operated according to the instruction in the operating manual The guarantee comprises removal of all damages that arises during the guarantee period and that are proven to be due to faulty material or poor workmanship If a defect arises and a valid claim is received by Labnics within the Warranty Period at its option Labnics will 1 repair the product at no charge using new or refurbished replacement parts 2 exchange the product with a product that is new or which has been manufactured from new or serviceable used parts and is at least functionally equivalent to the original product Ifa defect arises and a valid claim is received by Labnics after the first one hundred and eighty 180 days of the Warranty Period a shipping and handling charge will apply to any repair or exchange of the product undertaken by Labnics Labnics warrants replacement products or parts provided under this warranty against defects in materials and workmanship from the date of the replacement or repair for ninety 90 days or for the remaining portion of the original product s warranty whichever provides longer coverage for you When a product or part is exchanged any replacement item becomes your property
9. ocessor PID Controller with 0 1 C resolution Performance e Temperature Range Ambient 10 C 250 C e Resolution 0 1 C e Accuracy 0 2 e Uniformity 1 0 C Material e Inner Chamber Stainless Steel 304 ANSI 304 0 8mm thickness e Outer Cabinet Steel with epoxy powder coating e Glass Window Tempered Safety Glass 5mm thick Double Layer e High quality dust free aluminum barrier mineral wool with air flow layer to protect heat dissipation to the surface of oven Convenience e Seamless round cornered edge of chamber for easy cleaning and decontamination e Transparent glass Window e Height adjustable shelves of 25mm increment Safety e Overcurrent cut off e Over temperature cut off CHAPTER 4 SPECIFICATIONS II UE Range Ambient 10 C 250 C Lea Lana O Umomiy 1 Cat 120 C Heat Uptime within 80 minutes te 120 J Heater Digital PID Controller with Timer and Auto Tuning LT Electrical Leakage Electrical Leakage BreakerorCGFuse Limit Switch Heater and Fan output off ondoor open P Clearances 995x760X108 Nj SEELEN Estemal Steel TT with Epoxy Powder Goating SSCS insulation Mineral Wool 50 mm jw Woven Aluminum Barrier Boor Gasket High Temperature Resistance Foamed Silicone Rubber Widow Double Layer Tempered Safety Glass TT CHAPTER 5 PARTS AND DESCRIPTION Damper Main Controller Door Catch Power Card Circuit B
10. ormal display mode Remarks Timer can be changed in different scale by changing parameters Parameters are 1 mm ss 1 sec 99 min 59 sec 2 hh mm 1 min gt 99 hr 59 min 3 dd hh 1 hr 99 day 23 hr refer parameter setting to change time scale MODE 0 NL time scale selection parameter 0 mm ss 1 hh mm 2 dd hh MAX 00 SAFETY CHAPTER 8 SERVICE MANUAL 8 1 Circuit Diagram Over Temperature Protection 1 User must set the over temperature protection before operation 2 Turn overtemperature protection dial with screw driver 3 Set temperature about 10 20 higher than the operating user set temperature 4 If over temp protection value is below the operating temperature temp cannot be reach upto operating temp Operation 1 While setting temperature and time close door to start temperature control 2 If you open the door during operation blower fan and heater stops automatically 3 Open damper on the top of your oven to vent out vapor 4 If you keep close damper during operation temperature over shooting may occur paske ea fajjonuon LIE ii a d CH a z a n ch 2 Hey ee 8 2 Frequently Asked Questions 1 Why temperature keeps on increasing and decreasing under set temperature Cause SAFETY setting is lower than the set temperature Solution Turn SAFETY setting clockwise higher than the set temperature 2 Why sometimes tem
11. orrect blade no contact I Unusual fan noise or vibration Battery Check 12 volts or better Display indication and warning functions Battery 96 reading from display Leakage or condensation on the tubes Cut in voltage Kc Back Up system Display voltage ch No condensation on cabinet at BO Check Fuse LED Ka Lid door seal at pulldown RS232 Door close and latches Alarm remote operation Setpoint security verified Unusual noise at startup Kl Labeling on components correct No excessive dummy panel vibration Molded plug not overheated Recorder check and calibrated No frost on refrigeration components Leakage on the water pipe line Breaker fit at low temperature Verify solenoid valve Leak check while running Verify over temp protection of chamber g Verify motor voltage verify color code Verify over temp protection of humidity heater Check fluorescent lamps and lights Released from test Dy From QCFO001 frm Approval CHAPTER 11 MAINTENANCE AND SERVICE CHECK LIST Maintenance and Service Check List Modei iFOzs0 seian Tem JO HATS O Check Clean Up Replace mm da SS Je P S 9 Je Teter Qe 0 BowrMdo O 0 mac m S gt o E For opp 9 Te mns E CHAPTER 12 CERTIFICATE OF WARRANTY Forced Convection Oven LFO 250 Descriptions Warranty Period 12 Months after purchase Date of Purchase OOOO YA _ WARRANTY COVERAGE Labnics s warranty obl
12. perature does not increase Cause Door switch contact Solution Adjust the height of door switch for safety purpose when the door is close 3 Temperature Overshoot Cause Insulation and closed system Solution Open damper to vent out chamber air to outside 4 LED displays uuuu and beep Cause Over heating higher than 250 C Solution Your incubator cannot be used over 250 C If temperature increases over 250 C controller will show a warning high temperature and cut off heater 8 3 Trouble Shooting Guide Error Symbol Cause Solution UUUU Over heat higher than 250 C Call for Service nnnn Sensor disconnection Call for Service 8 4 Spare Part List Part No Descriptions LFO 250 OF HD 01 Damper OF HD 02 Tempered Glass 180x390x5T OF HD 03 Door Gatch D 414 OF HD 05 Hinge top OF ED 02 Power Switch 8206BG OF ED 03 Incolony Heater 2 5 kW OF ED 04 Safety Thermostat TS 320 OF ED 05 Pt100 Sensor PT 100 M10 OF ED 06 Door Switch YSP9S 15C OF ED 07 TRIAC TG25C OF ED 08 Heat Sink 100 100 OF ED 09 Circuit Breaker 220V 30A OF ED 10 Blower Motor OF ED 11 Fan Blade D150 x H62 CCW OF ED 12 8P Relay HR710 2PL OF ED 13 8P Relay Socket KLY2 CHAPTER 9 SETTING PARAMETER 9 1 Parameter 1 1 To set parameters press and hold MODE Button for 5 seconds 2 Press SHIFT and INC Button to change values 3 Press MODE Button to go to next parameter 4 To escape f
13. reaker CHAPTER 6 MAIN CONTROLLER LED Display P ilot Lamp Mode Button Shift AT Butt a AT Derr E Sat Parameter Time p Lei SAS AT cat err e i A increment INC DSO Butt Over Temp Cut Se Power Switch 80 200 SAFETY LED Display i _ DigitalLED Display Displays current chamber temperature when turned on SE nn Press INC button to display remaining time when wait off timer gets activated LI LI o J Pilot Lamp TIMER SHIFT AT a INC DSP SAFETY Kach POWER Pilot Lamp TIMER Lamp blink or turned on when wait off timer gets activated Lamp blinks until temperature reached upto operating temperature Lamp turned on to start count down HEATER OUTPUT Lamp blinks when heater is activated Mode Button e Push to Change temperature and time setting e Push to change parameters e Push and hold for 20 seconds to enter the instrumeritin parameter mode Remarks Operating parameters are set before shipment Do not change without the knowledge of each functi n of parameters Shift At Button e Shift to left digit Auto Tuning Function Press and hold for 30 seconds to start auto tuning Auto tuning will get finished before shipment INC DSP Button e Increase value when setting temperature and timer e Press ia display temperature amp timer alternatively in normal displ
14. rom parameter mode to normal display mode press hold MODE Button for 5 seconds NH MamUmtg 00 996 29 a AamUmio mamen Il 9 2 Parameter 2 To set parameters press and hold MODE Button for 30 seconds LED Display turn to ALH after 5 seconds Press the button for 25 seconds Press SHIFT and INC Button to change values Press MODE Button to go to next parameter 5 loescape from Parameter mode to normal display mode press amp hold MODE Button for 5 seconds Parameter Setting Range and Symbol Name of Parameter Descriptions Factory Default User Value Maximum temperature limit to set 99 9 299 9 C Do Not Change ACTP Temp where timer activate 00 0 99 9 C Parameter can be changed only when the N2 value of Modeo is 1 Timer starts count down when current temp set temp ACTP Period Output Interval Do Not Change WD ch P Proportion SS 0 6999 Autiunedvaue Do Not Change Integral 0 6999 Auto tuned value Do Not Change Anti Intergran 0 6999 Auto tuned value Do Not Change D Differential 0 6999 Auto tuned value Do Not Change Mode Operating Mode Control 0 N3 0 KS JISPt100 1 DIN Pt 100 N2 0 ALH Relative 0001 Do Not Change 1 AALH Absolute N1 0 ALL Relative 1 AALL Absolute NO 0 2000C 1 Decimal display 000 0 C Mode Operating Mode Control 1 N3 0 PID Control 1 ON OFF Control N2 0 Timer Disable 0111 1 Timer
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