M-TI GSL-1500X-OTF Bedienungsanleitung

GSL-1500X-OTF

1 MTI Corporation | www.mtixtl.com

GSL-1500X-OTF

1500°C TUBE FURNACE

With Vacuum Flanges & Valves: Optional 2”, 3” & 4” Mullite Tubes

OPERATION MANUAL

860 South 19th Street, Richmond, CA 94804, USA

TEL: (510) 525 –3070 FAX: (510) 525 –4705

Website: www.mtixtl.com Email: [email protected]

GSL-1500X-OTF

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TABLE OF CONTENTS

IMPORTANT NOTES ...........................................................................................................................................................3

GENERAL WARNINGS .......................................................................................................................................................3

INTRODUCTION .................................................................................................................................................................4

SPECIFICATIONS ................................................................................................................................................................5

STRUCTURE ........................................................................................................................................................................5

SYSTEM INSTALLATION ..................................................................................................................................................7

OPERATING ENVIRONMENT: 7

MULLITE TUBES: 7

SETTING UP THE TUBE & VACUUM FLANGES: 8

POWER CONNECTION: 9

SYSTEM OPERATION PROCEDURES .............................................................................................................................9

LOADING/ UNLOADING MATERIALS: 9

VACUUM SYSTEM: 9

GAS FLOW SYSTEM: 9

TEMPERATURE CONTROLLER INSTRUCTIONS ........................................................................................................10

518P TEMPERATURE CONTROLLER:10

TEMPERATURE CONTROLLER SETTING: 10

TEMPERATURE SEGMENT SETTING EXAMPLE: 11

ILLUSTRATION OF TEMPERATURE SEGMENT SETTING: 13

RUNNING THE PROGRAM: 14

PROCEDURE FOR SHUTTING DOWN FURNACE: 14

TEMPERATURE CONTROLLER PARAMETERS ...........................................................................................................14

INTRODUCTION OF MAIN PARAMETERS: 14

FUNCTIONS OF MAIN PARAMETERS: 15

PARAMETER SETTING: 16

AUTO-TUNE: 17

MANUAL-TUNE: 17

PARAMETER SETTING: 16

TROUBLESHOOTING........................................................................................................................................................17

MAINTENANCE AND CAUTIONS ..................................................................................................................................18

KNOWLEDGE ONAC POWER DISTRIBUTION ...........................................................................................................19

GSL-1500X-OTF

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IMPORTANT NOTES

Thank you for purchasing from Materials Technology International Corporation. This manual contains important operation and safety

information prepared for those intending on using the equipment. 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

frequently visit www.mtixtl.com for the latest information and manual.

GENERAL WARNINGS

MTI will not be responsible for equipment damage, accidents leading to minor or fatal injuries, and etc. caused by the user’s

negligence or lack of knowledge. Always read the manual fully beforehand and exercise the best judgment when handling the

equipment.

To avoid electrical shock:

Use a properly grounded electrical outlet of correct voltage and current handling capacity.

Be disconnected from the power supply before servicing.

Always double check the wiring and consult a licensed electrician for installation.

To avoid burns:

Do not touch the exterior or interior surface of the furnace during operation or for a period of time after use.

Tube Replacement or Installation:

Use extreme cautions and be aware of the surroundings when replacing or installing a tube.

Read the installation instructions listed in the dedicated section prior to installing.

To avoid Physical Injuries:

Do not put this equipment in flammable or explosive environments.

This equipment uses a 220V, 32A air circuit breaker & 4A fuses to protect against current overflow. Please cut off the

power first when changing blown fuses.

Power should be cut off when performing external maintenance like cleaning.

GSL-1500X-OTF

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INTRODUCTION

The CE certified GSL-1500X-OTF series furnace provides a split-able furnace body design capable of achieving temperatures up to

1500 ºC with the use of SiC heating elements. The furnace can be equipped with 2”, 3” and 4” O.D. high quality mullite tubes and a

pair of smart stainless steel vacuum sealing flanges. A pressure gauge installed on one of the vacuum sealing flanges to monitor the

pressure inside of the tube chamber. The precision temperature controller provides the user up to 30 segments of heating and cooling

steps with +/- 1 ºC accuracy in a heating program.

SPECIFICATIONS

Options

GSL-1500X-OTF-2

GSL-1500X-OTF-3

GSL-1500X-OTF-4

Mullite Tube Size

O.D: 50 x I.D: 44 x L: 762 mm

O.D: 76 x I.D:70 mm x L: 1000 mm

O.D:101 x I.D: 92 x L: 1000 mm

Furnace Structure

Double layer steel casing with air cooling to keep furnace surface temperature lower than 60°C

High purity fibrous alumina insulation for Max. energy saving

Special refractory coating on inner and heating element to increase furnace life

Two fiberous ceramic tube blocks are included for blocking heat radiation from inside tube (Ceramic

blocks must be fully inserted into the furnace chamber before heating)

Input voltage

208 - 240VAC SINGLE PHASE, 50/60Hz

Power

3.5KW

Heating element

SiC (1500 grade )

Optional Kathal 1650 grade SiC available upon request

Heating temperature

Max. heating temperature: 1500°C (At temperatures > 1400C, N2 or other inert gases must be used

to maintain an atmospheric pressure inside the tube for preventing against deformation)

Continuous heating temperature: 1400°C

Heating rate: 20°C /min Max.

Heating zone

Total heating zone length: 300mm

Constant temperature zone: 120mm (+/-1°C）

Temperature controller

PID automatic control via current limiting phase angle fired the resistor with 30 programmable

segments

Control accuracy +/-1°C

RS232 PC communication part can be installed for PC control

Vacuum sealing

Two stainless steel flanges with vacuum gauge and valves. 1/4" pipe and KF25 adaptersare installed

in two ends respectively

For fast & better vacuum, suggest you use stainless steel pipe , as well as digital vacuum gauge

Vacuum level

10^-2 torr by mechanical vacuum pump

10^-5 torr by molecular pump

Leak rate < 5 mtorr / min

Product dimension

Furnace: 580 L x 490 W x 625 H, mm

Net weight

60 Kg

Shipping dimension

45 x 45 x 35 inch

Shipping weight

200lbs

Warranty

One year limited warranty

Consumable parts such as processing tubes, o-rings and heating elements are not covered by the

warranty

Please order the replacement at related products below

Certificate

CE certified

GSL-1500X-OTF

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STRUCTURE

Controller: Use to set up the heating sequence (heating procedures) and modify the parameters.

PC port: connects to the computer and the furnace can be controlled by computer. (Note: A temperature

control system - EQ-MTS02 must be purchased to enable the PC control function.)

Turn on:Turn on the relay and allow controller work with heating elements

Turn off: Turn off the relay and stop communication between controller and heating element

Main power switch: Control the power supply.

Output indicator: When furnace start heating. Output indicator will blink when the current pass

through the transformer.

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Attention:

It is normal for the refractory lining to incur minor cracks while heating up to 1000C or above because of the

material's thermal properties. However, this will not significantly affect the furnace operations and the user can continue

to operate the furnace without problems.

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SYSTEM INSTALLATION

OPERATING ENVIRONMENT

1. Place the furnace on a dry, hard and flat surface

2. The furnace is for indoor use with nice ventilation and avoided direct sunlight

3. Operating temperature: 50°C ~ 350°C

4. Relative humidity (no condensing): 10%～85%

5. Dust-free

WARNING:

Never place the instrument too close to the side wall or the object obstructs the air vents. Keep the instrument at least 1 meter in

distance from the side wall.

ATTENTION:

Please don’t rapidly heat or cool down the tube furnace in the temperature range of 800 – 1500 oC. Doing so may cause crackin

gin the ceramic liner cracking. The suggested heating or cooling rate is 10 oC/ min.

MULLITE TUBES

GSL-1500X-OTF

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Mullite tubes offer excellent thermal shock resistance comparable to that of the quartz tubes while being capable of achieving a

higher maximum temperature (1680°C vs 1200°C). It provides the ideal alternative to customers opting for a maximum

temperature lower than 1680°C without resorting to the use of alumina tubes that are highly susceptible to thermal shock.

Though the mullite tubes (NOT covered by MTI warranty) are capable of being subjected to thermal shocks, please do not

expose the tubes to rapid and sudden changes in temperature where the gradient of change is higher than 200°C. Doing so will

not only cause possible tube deformation or cracking but will also gradually wear out the heating elements. Always follow the

guidelines recommended by MTI below when operating the furnace to ensure maximum efficiency and safety.

SETTING UP THE TUBE AND VACUUM FLANGES

Properly setting up the tube and vacuum flanges prior to heating will ensure the furnace to work under the most ideal conditions.

This will insulate the heat from the flanges 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.

Please use the tips below for safe and proper handling of the furnace equipment.

1. Refractory tube blocks should ALWAYS be inserted inside the tube and placed on both ends of the furnace casing (shown

in the picture below).

2. Install the vacuum sealing flanges on each side of the tube using the picture below as reference. Seal the flanges by

tightening the screws to finish the assembly.

GSL-1500X-OTF

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3. Limit the pressure regulator attached to the gas tank to below 1.1 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.

WARNING:

Tube furnaces are designed to be used under vacuum with low pressure gases. NEVER inject gas into the tube with

pressure higher than 1.2 atm. Pressure build up inside the tube may cause the flange(s) to be catapulted which may

cause injury or death.

Power Connection

The GSL-1500X-OTF series furnaces use single phase AC 220V 50/60Hz. The user is responsible for making sure that the

power source in the lab is sufficient and can meet this power requirement. A licensed electrician should be consulted to

perform the power connection.

The following picture is to show you the three wires: one ground line (G) and two live wires (L1 and L2).

SYSTEM OPERATION PROCEDURES

Loading/unloading

materials

1) Place the unprocessed materials in a container such as: alumina crucible, quartz boat or other containers at

http://www.mtixtl.com/ceramiccrucibles.aspx

2) Then push the container to the middle of the quartz tube and heat up the furnace.

3) Once the heating is finished, use a hook to pull out the container with the processed materials.

Vacuumsystem

Connect the pump to any one side of flange with the bellows locked by KF25 quick locking clip.

For medium vacuum pressures (10~10-3 torr) please use either the EQ-2TW-4C-220V or EQ-YTP550vacuum pump.

For a high vacuum (10-3~10-8 torr) please use a turbo molecular pump such as EQ-PV-HVS or EQ-MT-HVS

GSL-1500X-OTF

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Gas flow system

Connect the gas tank to any one side of flange with a venting pipe. Control the air flow byadjusting the value on the gas tank.

If you want to precisely measure or adjust the gas flow rate please attach an extra gas flow meter to any one side of flange. Please

see the details at http://www.mtixtl.com/digitalvacuumgaugesandflowmeters.aspx

TEMPERATURE CONTROLLER INSTRUCTIONS

518PTemperatureController

1. Specification

a. Compatible Thermocouple: K、S、R、E、J、T、N;

b. Measurement Accuracy: 0.3;

c. Power Input: Single phase 220V AC (±10%) / 50~60Hz;

d. Power: ≤5W;

f. 30 Programmable Segments.

2. Structure

TemperatureControllerSetting

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”.

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