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Summary of Contents for Labnics Equipment LSTF-100A
- Page 1 High Temperature Tube Furnace Instruction Manual Model : LHTF 100 Series Please read this manual carefully before using the instrument Labnics Equipment...
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Page 2: Table Of Contents
Table of Content SR. NO. CONTENT PAGE NO. INTRODUCTION INFORMATION RELATED TO SAFETY Unpacking & Handling of the Furnace Electrical Safety Human Health and Environmental Safety GENERAL INFORMATION Technical Details Furnace Components & Related Technical Properties Temperature Controllers Heating Elements Refractory Insulation 2.4. -
Page 3: Introduction
INTRODUCTION This booklet includes our recommendations, hints and points of notice for you to have a safe and better service from this equipment. We kindly ask you to carefully read this manual and only then to operate the furnace. This insignia is used for the purpose of warning you against risks involved. -
Page 4: Electrical Safety
Electrical Safety Electrical Connections Due to safety none of the Labnics furnaces that use over 16 amps have a plug while delivery. Main connection of furnace over 16 amps should be managed through a circuit breaker and according to electrical diagram supplied together with this manual. Electrical plugs even at low amperes (<... -
Page 5: Human Health And Environmental Safety
Power Temp. Phase Temperature Max. Temperature Volume Dimensions Dimensions (kW) deviation at less 100 C (Min.) W x H x D W x H x D Set Point LSTF-100A 1200°C 22Kg 51X34X63cm 20X500cm 1,00 +/-2°C LSTF-100B 1200°C 22Kg 51X34X63cm 20X500cm 1,30 +/-2°C... -
Page 6: Furnace Components & Related Technical Properties
LSTF-200E 1400°C 63Kg 60X41X92cm 75X1000cm 5,50 +/-2°C LSTF-300A 1500°C 48Kg 60X41X72cm 38X750cm 3,60 +/-2°C LSTF-300B 1500°C 51Kg 60X41X72cm 50X750cm 3,10 +/-2°C LSTF-300C 1500°C 53Kg 60X41X72cm 75X750cm 4,50 +/-2°C LSTF-300D 1500°C 68Kg 60X41X92cm 75X1000cm 6,25 +/-2°C LSTF-400A 1600°C 55Kg 60X41X72cm 50X750cm 5,05 +/-2°C LSTF-400B... - Page 7 2.1.1 Honeywell DC1010 Almost all Controllers employed have a short period of self test during which any interference is not possible . Please wait till this test is over . OUT1 OUT2 Honeywell DC 1010 General Notes Regarding Application PV (Process Variable): Displays the actual temperature of the furnace SP (Set Point): Displays the targeted (set) temperature LEDs , OUT1,OUT2, AT, AL1, AL2, AL3, MAN &...
- Page 8 Honeywell DC1010 DC1010 controller does not feature any programming capacity but can be used to set a temperature only. The controller will reach predefined temperature and will dwell indefinitely. 2.1.2 Honeywell UDC2500 Programming Hints UDC 2500 controller has 3 programming modes: SPRate, SPRamp, SPProg All can be used as required but SPProg is capable of managing the other two...
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Page 9: Heating Elements
Insignia Related Technical Explanation R1 Relay LED turns on when energized ( usual operational relay) R2 Relay LED turns on when energized Turns on when Controller is in Manual mode (normally off) Turns on at increments of 1 secs when a program is running Key : Used to return to beginning of a menu, to return Mains Menu or transition between manual control mode and programmable mode. -
Page 10: Refractory Insulation
This may cause significant chemical reactions to occurs eventually leading to affect the life of elements. Operator must remember that SiC elements always prefer to have oxidizing atmospheres .This is due to the fact that a protective layer of silica glazing is built up to protect the elements against further oxidation. -
Page 11: What Is Pid Control
What is PID Control? The simplest way of temperature control is On/Off. On/Off Controlling supplies full power till a predetermined Set point is reached and power is turned off after this threshold is reached, turning on again when temperature drops down. Temperature is never stable, only fluctuating at around the set point. - Page 12 User should take care of two major points, if especially the recrystallized tube size is larger than 60mms. • Programming should be applied to manage controlled heating to set temperature and also controlled cooling is strongly recommended. Heat up rates of less than 8°C/min is strongly advised.
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Page 13: Hints
Hints 5.1. Repairs & Replacements Change of Tube Always make sure that the reason for malfunctioning is due to element failure before disassembling the furnace Ceramic tube can be freely changed for tube furnaces over 1400 C where SiC and MoSi2 heating elements are used. Please use following procedure when changing tubes for furnaces with Silicon Carbide heating elements: Always disengage power before starting the replacement. -
Page 14: Calibration
5.2. Calibration Depending on using frequency and application temperature, you may require a calibration of the thermocouple from time to time or even a change of the thermocouple. For K type thermocouples we advice a change for every year. For S or R type thermocouples the useful life can be much longer for temperatures less than 1500°C. -
Page 15: Operating Properties
Thermocouple shows a low temperature The thermocouple may have been shorted or may have been moved from its original place Thermocouple may be reverse connected Controller may be have a faulty configuration Operational Properties Electrical & Other Requirements Phase Volts Frequency Medium Temp. - Page 16 To operate the furnace: Turn on the Green I/0 switch. This will open the controller panel but the furnace will not start heating. The purpose of this is to give time to operator to feed in programming data / set the required temperature etc. without actually the heat up. To start heating turn on the red "heat"...
- Page 17 THE CONTROL PANEL (PC442) Power Switch Heat switch STOP Temp. Controller Fig.1. General Appereance of the Control Panel Fig.2. General Appereance of the Temperature Controller Please note that there are two diffrent heating methods that the operator may choose in order to heat the furnace.
- Page 18 If you require a delay time before the programme starts ,press “ ” key one by one until “Dly” is displayed on the screen. Adjust the dwell time in minutes by using up / down keys and press “ ” key once in order to return the main display. Please note that if the start timer function is defined, 01:00 will displayed on the lower screen after the programme has started indicates that , the chosen programme will start after the dwell time has expired.
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Page 19: Sample Program
You will observe the actual temperature at upper display of the furnace and the program number and stage (segment) number at the lower display. Program will start from the process value and carry on according the program data. During the program is running, by pressing " " key one by one ,you can reach certain information regarding the program which are all read only except "Dly"... - Page 20 Now, please follow the steps that are shown at the table below. ALWAYS DEFINE A COOL DOWN SEGMENT TO ROOM TEMPERATURE AT THE END OF THE PROGRAM. OTHERWISE, AFTER THE PROGRAM HAS COME TO AN END THE FURNACE TEMPERATURE WILL STABILIZE AT THE LAST SEGMENTS TEMPERATURE VALUE UNTIL THE POWER IS TURNED OFF.
- Page 21 2. (°C/hr) if EU-H option is adjusted in the RPUNIT menu 3. (°C/min) if EU-M option is adjusted in the RPUNIT menu • SG2SP Soak SP • Defines the set point which the furnace will heat up in this segment. •...
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Page 22: Service Report
SERVICE REPORT Tel.No.: Customer’s Address : Fax No.: Weekly Off.: Contact Person / Designation : Dept.: Time Date : SR. No. System Date Model Serial No. Configuration From Status : OK Not OK Installation Warranty Demonstration Maintenance Contract Repairs Application Billable Calibration Validation... - Page 23 Labnics Equipment 43040 Christy St., Fremont, CA 94538 USA. Toll Free : (877) 620 9992 Tel. : (925) 271 4322 Fax : (925) 886 0400 Email : info@labnics.com Website : www.labnics.com...
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