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Summary of Contents for MTI GSL Series
- Page 1 GSL Series Tube Furnaces Max. 1100°C GENERAL OPERATIONAL 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...
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Page 2: 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... -
Page 3: Table Of Contents
Contents IMPORTANT NOTES ................................. 2 GENERAL SAFETY WARNING ..............................2 WARRANTY....................................2 SPECIFICATIONS ..................................4 UNPACKING INSTRUCTION ..............................5 SYSTEM SETUP ..................................5 Operating Environment ..............................5 Power connection Requirements ............................. 6 Heating Elements Installation / Replacement ......................... 8 Tube Installation / Replacement............................9 Vacuum Flanges Installation / Removal ........................ -
Page 4: Specifications
SPECIFICATIONS GSL Series Models Model GSL-1100X-UL GSL-1100X-XX-S- GSL-1100X-11-S2 GSL-1100X-XX-III UL series GSL-1100X-NT-UL Working Temp 1100 °C Max. (< 1 hr) 1100 °C (<1 hr) 1150 °C Max. (< 1 hr) 1150 °C Max. (< 1 hr) <1000 °C Continuous <1050 °C Continuous <1100 °C Continuous... -
Page 5: Unpacking Instruction
Transport of the system should be in an upright position at all times until it is moved to the right place. CAUTION: Do not dispose any of the packing materials or boxes. MTI will not provide extra packing materials in the case of future “return for repair” service request. -
Page 6: Power Connection Requirements
In the case of 110V, a standard US plug will typically be supplied. For 220V, MTI will most likely ship the instrument without a power plug on its cable due to the different plug configurations and electrical codes used by different locations and countries. - Page 7 Please refer to the illustrations below to get an idea of the connections for the three phase and as well as the single phase 208~240V AC. Attention: MTI Corporation will not be responsible for any equipment or property damage that results from improper or incorrect power connections.
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Page 8: Heating Elements Installation / Replacement
Typical Single Phase AC Power In US Heating Elements Installation / Replacement The heating elements of the furnace will need to be replaced once they are worn. To prevent damage from shipping, some furnaces will also require heating elements to be installed by the user prior to use. Follow the instructions below to carry out the heating elements installation (depending on the heating element type, skip if elements are already installed). -
Page 9: Tube Installation / Replacement
Fe-Cr-Al Alloy doped by Mo Resistance Wires These heating coils are already embedded inside of the refractory ceramic; no installation is necessary. If replacement is needed, simply drop in the entire heating module set after removing the original set from the furnace. -
Page 10: Vacuum Flanges Installation / Removal
Attention: Please note that the vacuum sealing flanges must be removed from both ends of an installed tube prior to removing it from this type of furnace. Vacuum Flanges Installation / Removal The flange end caps are responsible for enabling the tube chamber of the furnace to be air tight and thus allowing for the vacuum environment to be induced. - Page 11 WARNING: The air seal must be inspected by vacuum or filled inert gas before running the furnace again.
- Page 12 Concealed Tube This furnace setup does not expose either end of the tube on the sides as it is concealed within the furnace itself. The flanges of this design are usually mounted directly on the casing or body of the furnace itself. Please follow the instructions below to install or remove the flanges for this setup.
- Page 13 4. Each end of the tube will require two silicon O-ring gaskets and one steel O-ring. 5. Begin by mounting the first silicon gasket onto the tube, then mount the steel O-ring in the middle and follow up with another silicon gasket. 6.
- Page 14 The picture series below should be used as the reference for properly fitting every component of the flange end caps onto the tube ends (applies to both Extruded and Concealed tube configurations). 1. With the inner collar of the flange end cap placed on the tube, install the two silicone O-rings with the steel O-ring in between.
- Page 15 3. Then put on the outer flange end cap and begin tighten the screws. Please note that all screws must be fastened evenly to ensure the gap between the two flange end caps is evenly distributed all around. WARNING: All screws around the flange end cap must be fastened EVENLY in a fashion similar to securing a car’s wheel onto the axle.
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Page 16: Thermoblock Placement
Thermo block placement Prior to heating samples inside of the furnace, thermal insulation blocks must be placed inside the tube chamber by a position specific manner. This will insulate the heat from the vacuum flanges (sealing gasket protection) while simultaneously preventing the dissipation of heat from the furnace chamber. The insulation of heat stabilizes the heating zone which in turn expends less energy and places less wear on the heating elements. -
Page 17: Thermocouple Installation
Thermocouple Installation The thermocouple has been tested on the furnace to ensure proper function prior to shipping. However, some furnaces (high temperature series) have special thermocouples that had to be removed prior to shipping to protect against damage. If your furnace does not come with the thermocouple already being installed, please use the following instructions to install it. -
Page 18: Vacuum Pumps
1. Quartz tube furnaces - may be safely used up to 1000°C The flanges on MTI furnaces can be readily configured to accept various fittings for vacuum pump connections. The standard Barbed Hose Fitting (default fitting option on flanges) allows a flexible rubber hose to be used for the vacuum pump connection at minimal cost. - Page 19 For keeping the working environment cleaned, the exhaust of vacuum pumps can be fitted with traps or filters that help eliminate particles, vapors, oil mist, and etc. into the room. Exhaust Filters Particle Trap Cold Trap for Recovering Condensables Mounting accessories in between the vacuum pump and the processing chamber can also be considered to protect the internals of the vacuum pump from damage.
- Page 20 Exhaust Gas Cooling Unit Oil Trap GAS FLOW SYSTEMS Gas mixing/ delivery systems allow for mixing of various reactive gases for inducing chemical reactions as well delivering inert gases into the chamber for sample treatment. For making the connections to these systems, the flanges regularly come standard with Barbed Hose Fittings to accept flexible rubber gas tubes for bridging the gas source and furnace.
- Page 21 WARNING: For safety concerns, never charge any noxious, explosive or flammable gas into ceramic tubes. The flow rate for gases should be limited to <200 SCCM (or 200ml/min) for reducing thermal shocks to the tube ( with the output pressure of the gas tank regulated to < 0.2 Bar or < 3 PSI ). ...
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Page 22: Operation Guidelines
NOTE: Check the compatibility of the thread type of the 1/4 tube fittings before installation. For most gas regulator in U.S. the 1/4 tube fitting is required to have 1/4 MNPT thread type. For MTI flange system, the 1/4 tube fitting is required to have 1/4 MBSPP thread type. -
Page 23: Sample Loading / Unloading
Turn on the furnace (instructions listed below), then press and hold the RUN button of the temperature controller for 3 seconds. Then the furnace starts running and heating up to 800℃. The heating program has been set up before we ship out our equipment. The heating program is Wait until the program stops. -
Page 24: Turning On/Off The Furnace
Note: MTI supplies various kinds of quartz, alumina and zirconia crucibles/boats, please click the link in below to view our products: http://www.mtixtl.com/quartzcricublesboats.aspx http://www.mtixtl.com/aluminacricublesboats.aspx 2. A handle hook is included and it can be used for pulling out the thermoblocks and crucibles from the processing tube http://www.mtixtl.com/furnacehandlehook.aspx... - Page 25 There are mainly two types of configurations with the control panels of MTI furnaces. To operate the furnace, please: 1. Turn on the power 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.
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Page 26: Temperature Programming
Ramping / cooling rate must be strictly controlled according to the specification table. Processing tubes can be thermally shocked or cracked if the ramping / cooling rates are not followed properly. Do not change any default parameters especially the ‘P’, ‘I’, ‘D’, ‘PLOC’, ‘LOC’ without MTI’s authorization. In case of Bota temperature controller Current Temp. - Page 27 2) Temperature program setting Press “←” once to enter temperature program setting status Set initial temperature to 0 C by using Keystrokes :“←”, “↑” or “↓” ; Press “Set” to display “t01” on PV window; Set heat-up time from initial temperature to target temperature by using Keystrokes :“←”, “↑” or “↓” ; ...
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Page 28: Running The Program
Running the program When all the data is input into the temperature program, press both “Set” and “←” together, and “end” will show on SV window again as an indication of the controller returning to the “Normal Status”. Then press “↓” and hold for two seconds to display “Run”... -
Page 29: Functions And Indicators
Attention: It is not suggested to modify any parameters during the execution if the operator is not familiar with the furnace operations. If it is necessary, please stop the program first and then do the modification. Shut off the furnace a. -
Page 30: Startup Status
3) Startup Status 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”. 4) Displaying Switch a. In the “normal state” or “program running state”, press “SET” key (Button 2) for1secondtoswitchto“executing program segment”(to set executing segments or display the ongoing temperature segment). - Page 31 5) Temperature program setting Programmable smart instrumentation auto-controller allows you to set the temperature profile up to 30 segments. To process this function, follow these steps: Power on the furnace, blinking “STOP” on the SV window indicates the Normal State; ...
- Page 32 Attention: The heating profile will stop at the first segment that contains “-121” regardless of whether or not the latter segments have values set in them. 6) Running the program When all the data is input into the temperature program, press both “Set” and “←” together, and “STOP”...
- Page 33 8) Stop the program and shut off the furnace Press the “↑”key to make sure the controller is at its “STOP “ state Push the red “ Turn-Off” button to deactivate the furnace relay Turn the lock switch in counter clockwise direction to cut off power from the control panel ...
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Page 34: The Use Of Vacuum Accessories
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. - Page 35 2. Standard available vacuum gauges (not included) EQ-CVM-YZ60 EQ-CVM-211-P-LD EQ-PGC-554-LD Anti-corrosive Anti-corrosive Mechanical Digital Digital Gas independent Gas dependent (N2 calibrated) Gas independent (Gauge indicates relative pressure value, -0.1Mpa represents ultimate vacuum while 0 represents atmospheric pressure ) Need additional power Need additional power Max.
- Page 36 Warning: EQ-CVM-211-P-LD Thermal conductivity gauge is calibrated using nitrogen (N2). When a gas other than N2 / air is used, correction must be madefor the difference in thermal conductivity between nitrogen (N2) and the gas in use. You may make a conversion table for your EQ-CVM-211-P-LD that compares the true pressure of the gas you are measuring as measured by a gas independent gauge...
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Page 37: The Use Of Various Gases
Warnings: Do not operate this equipment with flammable, explosive, poisonous inside. MTI does not accept any responsibility in case of any accident which might happen during any kind of process due to the usage of materials mentioned above. (If at any times, this equipment is to be used under conditions of hazard to Human health, the sole responsibility belongs to Operator. -
Page 38: Maintenance And Equipment Care
Note: 1/4'' Tube Fitting is preferred to be used with MTI MFCs and Gas Mixing System. MTI provide three types of gas delivery products Float flow meter Mass flow meter Gas mixing system Economic Precise Multi-functional http://www.mtixtl.com/compact-flow-meters.aspx http://www.mtixtl.com/gasmixin ganddeliverysysytem.aspx MAINTENANCE AND EQUIPMENT CARE 1. -
Page 39: Heating Element
4. It is normal to observe minor cracks on the liner after the first couple times of trial. Easy repair instruction for chamber cracking issue via alumina coating material below. http://www.mtixtl.com/equipment-applications/MTI-Coating-Instructions-110614.pdf 4. Flange & Foam Block 1. Alumina adhesive material on alumina foam block can help minimize the dust released. Apply a thin layer of alumina adhesive bonding material on the surface of foam block, followed by a few hours curing at room temperature. -
Page 40: Cooling Fan
3. Do not forget to place foam blocks at each end of the furnace. http://www.mtixtl.com/refractoryceramicblocks.aspx 4. Regularly check and avoid using aged O-ring gaskets to ensure the best sealing quality. If the vacuum performance starts to decline drastically, please replace the silicon rubber O-rings inside the flanges and then reassemble the flanges and the vacuum system.
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