MTI VBF-1200X-H8 Operation Manual
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MTI VBF-1200X-H8 Operation Manual

1100c compact vacuum chamber furnace
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VBF-1200X-H8
VBF-1200X-H8
1100°C COMPACT VACUUM CHAMBER FURNACE
With UL Recognized Electric Components & Eurotherm 3504 Temperature Controller
OPERATION MANUAL
860 South 19
th
Street, Richmond, CA 94804, USA
TEL: (510) 525 – 3070 FAX: (510) 525 – 4705
Website:
www.mtixtl.com
Email:
info@mtixtl.com
1
MTI Corporation
www.mtixtl.com
|

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Summary of Contents for MTI VBF-1200X-H8

  • Page 1 VBF-1200X-H8 VBF-1200X-H8 1100°C COMPACT VACUUM CHAMBER FURNACE With UL Recognized Electric Components & Eurotherm 3504 Temperature Controller OPERATION MANUAL 860 South 19 Street, Richmond, CA 94804, USA TEL: (510) 525 – 3070 FAX: (510) 525 – 4705 Website: www.mtixtl.com Email: info@mtixtl.com...

  • Page 2: Table Of Contents

    VBF-1200X-H8 TABLE OF CONTENTS IMPORTANT NOTES ................................3 GENERAL WARNINGS ............................... 3 WARRANTY ..................................3 EQUIPMENT INFORMATION ............................4 INTRODUCTION: 4 FURNACE STRUCTURE: 4 SPECIFICATIONS: 5 ASSEMBLY INSTRUCTIONS ............................. 6 EQUIPMENT INSPECTION: 6 OPERATING ENVIRONMENT: 6 POWER CONNECTION: 6 AC POWER: 6-8...

  • Page 3: Important Notes

    The prospective user is responsible for carefully reading and understanding the contents of this manual prior to operating the equipment. MTI reserves the right to update or upgrade the product without informing customers of the data change(s) in this manual. Please visit www.mtixtl.com frequently for the latest information and manual.

  • Page 4: Equipment Information

    VBF-1200X-H8 EQUIPMENT INFORMATION INTRODUCTION VBF-1200X-H8 is a CE certified vacuum furnace with a 7.5" ID x 13.4"L quartz tube chamber placed horizontally. Water-cooled stainless steel vacuum flanges with valves are installed to achieve a vacuum of 10 to10 torr through the use of a mechanical or molecular vacuum pump.

  • Page 5: Specifications

    900 ° C.  Gas Flow and Inert gas and oxygen gas flow can be achieved via two valves. (Attention: MTI does Pressure not recommend using our products under hazardous conditions. We are not liable for any damage incurred under hazardous conditions.

  • Page 6: Assembly Instructions

    VBF-1200X-H8 ASSEMBLY INSTRUCTIONS EQUIPMENT INSPECTION Once receiving the furnace, please inspect the equipment and all accessories for damage incurred from shipping and check the packing list for missing items. If anything is damaged or missing, please inform us at info@mtixtl.com.
  • Page 7 208~240V AC. Attention: MTI Corporation will not be responsible for any equipment or property damage that results from improper or incorrect power connections. MTI Corporation...

  • Page 8: General Operation

    VBF-1200X-H8 Typical Single Phase AC Power In US GENERAL OPERATION If the furnace is being used for the first time (or use again after a long period of inactivity), please pre-heat the furnace to 300 at least 2 hours for removing moisture inside the chamber to prevent cracking of the furnace refractory ceramics.
  • Page 9 VBF-1200X-H8  Place the test sample inside the tube chamber (crucibles or boats may be used as material containers, please visit: http://www.mtixtl.com/ceramiccrucibles.aspx) to order.  Insert the O-Ring into the slot between the quartz tube and the flange.  Seal the chamber by tightening the 6 fixing screws on the flange.
  • Page 10 3. Place the refractory block inside the chamber and preheat the furnace at 1000 C for least an hour since the refractory block will be a major factor influencing the vacuum level. 4. You may order a quartz heat block at extra cost from MTI Corp when a replacement is needed for the refractory block. MTI Corporation...
  • Page 11 VBF-1200X-H8 Please be advised that you must implement cooling water during operation, please visit: http://www.mtixtl.com/recirculatingwaterchiller.aspx for more information about the Compact Recirculation Water Chiller (4 Liter Tank, 4L/min Flow). Compact Recirculation Water Chiller  Limit the pressure regulator attached to the gas tank to below 1.2 atm before filling the tube with gas. Keep the vacuum valve(s) open during gas filling to avoid high pressure from building up inside tube.

  • Page 12: Vacuum And Gas Flow Systems

    The flanges on MTI furnaces can be readily configured to accept various fittings for vacuum pump connections. Typically, connection to the pump is made by securing stainless steel bellows to either side of the flange by quick locking clamps. For medium vacuum (25~10 Torr), the EQ-YTP550 vacuum pump is an ideal option.

  • Page 13: Setting The Temperature Controller

    VBF-1200X-H8 3. Functions and Indicators SETTING THE TEMPERATURE CONTROLLER Start Up State When starting the device, the meter type and program version will display for a few seconds, and then enter the normal state. Blinking “stop” indicates the program is in “normal state”.

  • Page 14: Heating Profile Setting Example

    VBF-1200X-H8 Displaying Switch a. In the “normal state” or “program running state”, press “SET” key (Button 2) for 1 second to switch to “executing program segment” (to set executing segments or display the ongoing temperature segment). b. Press “SET” key (Button 2) again for 1 second to switch to “running time state” (to display the total running time PV xxxx min.

  • Page 15: Illustration Of Heating Profile Setting

    VBF-1200X-H8  Set heat-up time (Usually beyond 30 minutes for this segment in case of temperature overshooting) from initial temperature to target temperature by using Keystrokes :“←”, “↑” or “↓” ;  Press “Set” to display “C02” on PV window; Set the actual working temperature for the second segment by using Keystrokes :“←”, “↑”...

  • Page 16: Running The Program

    VBF-1200X-H8 According to figure I above, all segments were recorded in the follow ing: Prompt Input Data Description Initial Temperature Heat-up time 40 minutes from 0-300 C in the first segment Target temperature of the first heat-up stage Keep 20 minutes at 300...

  • Page 17: Holding The Program

    VBF-1200X-H8  Furnace will run segment by segment automatically according to the program setting;  PV window then displays the present temperature inside the chamber; HOLDING THE PROGRAM  running, press “↓” for 2 sec to hold the program If you need to hold the furnace at certain temperature when the program is and press it again to continue.

  • Page 18: Functions Of Main Parameters

    VBF-1200X-H8 Whenever you want to change the parameters referred below, please change the value of parameter “Loc” to “808” first in order to unlock the parameter settings. FUNCTIONS OF MAIN PARAMETERS Maintain parameter M5: Like integral time of PID calibration, this parameter is mainly in charge of the integral work during the adjustment process. For instance, the smaller the M5 is set, the stronger the system integral effect is, vice versa.
  • Page 19 VBF-1200X-H8 Delay time t: It is defined as the time spent when the heating rate reaches to 63.5% of the maximum value with assumption that there is no heat dissipation. Remember, this parameter affects the three functions such as integral, proportion and differential, the smaller t is, the stronger proportion and integral function are but weaker differential, after all, the system feedback is promoted, vice versa.

  • Page 20: Parameter Setting

    AUTO - TUNE In order to obtain precise temperature control, customers should pay more attention to the parameters of M5, P and t. Actually, MTI’s engineers have already made a strict high temperature pre-heating test (rate: 5℃/min) and fine-tuned on these three parameters according to each furnace’...

  • Page 21: Equipment Maintenance & Troubleshooting

    Do not open the furnace when it is being heated above 300 to prevent its insulation materials from cracking.  MTI furnaces are only suitable for using with air or inert gas environments. Other flammable or toxic gases, such as H , Cl and SO , will cause damage to the heating elements.

  • Page 22: Troubleshooting For Typical Problems

    (SV) little. sensitive at temperature below 300 TROUBLESHOOTING RESOURCES  Visit MTI web site link: WWW.MTIXTL.COM for additional information about the instrument through Help and Support  Contact us by Tel: 510-525-3070 or email: info@mtixtl.com...

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